Progress 10/01/12 to 09/30/17
Outputs
Target Audience:Target audience includes commercial vegetable producers throughout the state. Changes/Problems: We are being asked to accomplish more with fewer resources i.e. time-due to a serious commitment to administrative oversite of all projects. Money as we are requested to cover more expenses with soft money that were once a part of state and federal budgets. Funding continues to be an issue due to difficulty in finding funding for applied field research. We have addressed this through funding requests to the Oklahoma Department of Agriculture, Food, and Forestry and industry partners, but we still are struggling with this issue. What opportunities for training and professional development has the project provided? One-on-one work with a retired horticulturist from Kerr Foundation. This person helped us plan the cover crop work that we initiated during 2017. He also visited our plots during the August field day and provided advice on cover crop management for next season. One-on-one work with faculty members in Plant and Soil Science, specifically weed scientist, crop specialist, and soil fertility specialist. Provided individual work with new farmers and with Non-Governmental-Organizations doing work in developing countries on vegetable farming basics: Irrigation systems Soil testing and results interpretation Fertility management Crop selection How have the results been disseminated to communities of interest? Results will be shared through MP-164 2013-2017 Vegetable Trial Reports both as a printed report to be shared directly with individuals and the on-line version available at: http://www.hortla.okstate.edu/research-and-outreach/research/vegetable-trial-reports Oklahoma Gardening episodes on vegetable, fruit, ornamental research: Spring 2017 OSU horticultural field day at Cimarron Valley Research Station: http://www.oklahomagardening.okstate.edu/full-shows/full-show-2017/061017-fs On-line videos related to learning to farm with vegetable crops available at: http://www.hortla.okstate.edu/research-and-outreach/research/vegetable-trial-reports What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
We were able to initiate research on using cover crops as a method of improving soil quality. This effort included the use of both summer and winter cover crops to increase the level of organic matter in production soils. Summer cover crops that we utilized included cowpea, sesbania, lablab, and sorghum x sudan grass. We didn't observe any major differences in the increase of organic matter in the soil from the three legumes in the studies (cowpea, sesbania, and lablab), but the sorghum x sudan grass treatment did add more organic matter. For future studies we have dropped the two more exotic legumes (sesbania and lablab) which are not as heat or drought tolerant and have more expensive seed costs and will be utilizing only cowpea as our summer legume cover crop. We also plan on using combinations of both summer annual grasses (sorghum x sudan, pearl millet) with cowpea as summer cover crops along with cowpea alone. Winter cover crops that we utilized included winter wheat, crimson clover, and Austrian winter peas. Again we included an annual grass to increase organic matter and combined this with crimson clover and also with Austrian winter pea as separate treatments. Although wheat added more organic matter compared to the two legumes when wheat was grown exclusive of either of the legumes there was a marked difference in growth of pumpkins that followed these winter wheat. Treatments that included wheat plus a winter legume and legumes alone performed at a higher level than wheat alone due to available nitrogen in the soil. We examined several vegetable cultivars in trials that included: Cabbage, Cowpea, Pumpkin, Sweet corn, Tomato, Spinach, Swiss chard, Garden beet, Leaf lettuce, Sweet potato, Garlic, and Lavender. Some of our most significant differences were observed in the tomato and cabbage trials. We developed state-wide tomato trials during three years of this project. The system included standardized trials in farmer's fields at multiple sites (6) and years (3) testing for productivity during our hot Oklahoma summers. We found several cultivars (5) that performed well in multiple locations which were included in three different year's trials. Those included Bella Rosa, Tribeca, Tribute, Solar Fire, and Tasti-Lee. The reason each of these cultivars was included in subsequent year's trials was on the basis of their performance and they were voted for by growers at the various locations included in the trials each year. Cabbage had not been trialed in several years and is an important fresh market crop for our state's growers. During this trial cultivars were examined for overall yield and quality characteristics and we observed major differences in days to harvest, yield, sweetness, and other quality factors. Of the cultivars in the trial the green types consistently out yielded and were of higher quality than the reds or the savoy types included in the study. Herbicide trials were completed on several vegetable crops including Pepper, Pumpkin, and Sweet Potato. The main objective of these trials is to identify herbicides that have potential for use with the crops that they are trialed on based upon their effectiveness for weed control and also for crop safety. As a result of these trials we have been able to identify several herbicides that warrant further research in pepper (3-4 herbicides), pumpkin (1), and sweet potato (3).kin, and sweet potato. Results available in MP-164 Vegetable Trial Reports as given above
Publications
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Research reports include the following: 5 years of research reports in MP-164, 2013-2017 Vegetable Trial Report.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Brandenberger, L. Zhang, H. 2017. Crop-specific fertility recommendations from OSU. Proceedings of the Horticulture Industry Show. 36:109.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Ringer, J., Carrier, L., Brandenberger, L., Moss, J., Shrefler, J.W. 2017. Production considerations for select Native American heirloom legume varieties. Proceedings of the Horticulture Industry Show. 36: 110.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Barton, M., Ringer, J., Moss, J., Brandenberger, L. 2017. Growing new horticulturists through student learning farms. Proceedings of the Horticulture Industry Show. 36: 111.
- Type:
Websites
Status:
Published
Year Published:
2017
Citation:
Websites: Food Safety website at: http://freshproducesafety.okstate.edu/ Oklahoma Fruit and Vegetable Association website at: http://www.okfva.org/
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Shrefler, J.W., Brandenberger, L., Zhang, H. 2017. Kale cultivar evaluation in organic high tunnels. SR-ASHS Annual conference abstracts.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Brandenberger, L. 2017. Oklahoma to Guatemala a long row to hoe. Proceedings of the Horticulture Industry Show. 36:100-103.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Brandenberger, L. 2017. The future of applied research and extension, will it exist in the future? SR-ASHS Annual conference abstracts.
|
Progress 10/01/15 to 09/30/16
Outputs
Target Audience:Target audience includes commercial vegetable producers throughout the state. Changes/Problems:We have had an ongoing challenge from wildlife damage of research plots. To address this we tested the use of wildlife netted fencing in 2016 and had excellent results in keeping deer and other wildlife from our legume plots. We are moving ahead on plans to use wildlife fencing for our entire area at the Cimarron Valley Research Station. Supplies are being purchased and we hope to have the fence up and operational as soon as possible. Funding is always an issue due to difficulty in finding funding for applied field research We have addressed this through funding requests to the Oklahoma Department of Agriculture, Food, and Forestry and industry partners, but we still are struggling with this issue. What opportunities for training and professional development has the project provided?Professional development from completing research efforts include the following: Crop management i.e. irrigation, fertility, and pest management. How have the results been disseminated to communities of interest?Results will be shared through MP-164 2016 Vegetable Trial Report both as a printed report to be shared directly with individuals and the on-line version available at: http://www.hortla.okstate.edu/research-and-outreach/research/vegetable-trial-reports What do you plan to do during the next reporting period to accomplish the goals?During 2017 we plan to continue work on the cover crops used as living mulches for summer fruiting crops and to continue working with screening for appropriate cover crops for both summer and winter seasons. During 2017 we plan to begin work with cover crops as living mulches for reduced tillage weed control, cultivar testing of cowpea, pumpkins, and sweet corn.
Impacts
What was accomplished under these goals?
Developed crop management and rotational practices for vegetable crops that will be used in reduced tillage systems. Began development of crop irrigation protocols for Native American legume crops. Contact and engagement of new groups of producers within the Hmong people Choctaw tribes. Both educational events and trials were begun with these groups. Six cultivar trials were completed during 2016. Results available in MP-164 2016 Vegetable Trial Report as given above. Completion of cover crop studies for reduced tillage studies in vegetable crops. Winter cover crops were established in fall 2015 with followed by a summer pumpkin planting in 2016. Summer cover crop study was initiated in June of 2015 followed by fall planting of spinach. Report included in 2016 Vegetable trial report MP-164. All objectives were addressed particularly cultivar trials and cover crop studies. Significant results attained particularly with the winter cover crop studies that included a summer cucurbit crop (Pumpkins). Reports in MP-164. Initiation of Native American legume study by Josh Ringer in our research group. Report in MP-164. Continued efforts on food safety for fresh produce. 2016 saw the completion of the Produce Safety Alliance (PSA) curriculum for fresh produce food safety. In addition OSU extension specialists participated in the initial "Train the Trainer" training with PSA trainers in a regional training in Arkansas. Key goals not yet met include: Developing crop management and rotational practices for vegetable crops that will be used in reduced tillage systems. Although not completed we were able to complete initial studies with winter and summer cover crops.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Brandenberger, L., Carrier, L. 2016. Improving soils with winter cover crops before planting pumpkin (Cucurbita pepo). SR ASHS Annual conference abstracts.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Kahn, B., Rebek, E., Brandenberger, L., and Reed, K. 2016. Companion Planting with White Yarrow or Feverfew Inconsistently Affects Squash Bug Populations on Summer Squash. SR ASHS Annual conference abstracts.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Brandenberger, L., Carrier, L., Zhang, H., Bowser, T., and Payton, M. 2016. Soil test kits for gardens in developing countries. Horticulture Industry Show Proceedings 35: 158.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Brandenberger, L., McGlynn, W., Bihn, E., Wall, G. 2016. Food safety training using the produce safety alliance curriculum. Horticulture Industry Show Proceedings 35: 157.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Brandenberger, L., Carrier, L., and Zhang, H. 2016. Use of summer cover crops for increasing soil organic matter and emergence of fall planted spinach. Horticulture Industry Show Proceedings 35: 154-156.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Carrier, L., and Brandenberger, L. 2016 Pumpkins following winter cover crops. Horticulture Industry Show Proceedings 35: 127-129.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Ringer, J., Carrier, L., Brandenberger, L., Moss, J. 2016. Increasing Seed of Traditional Native American Crops. Horticulture Industry Show Proceedings 35: 125-126.
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Kahn, B.A., Rebek, E.J., Brandenberger, L.P., Reed, K., Payton, M.E. 2016. Companion planting with white yarrow or with feverfew for squash bug, Anasa tristis (Hemiptera: Coreidae), management on summer squash. Pest Management Science. http://onlinelibrary.wiley.com/doi/10.1002/ps.4427/full
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Kahn, B.A. and Brandenberger, L. 2016. Developing protocols for fall sweet corn production in the south-central United States. http://horttech.ashspublications.org/content/current HortTechnology 26:417-425.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Brandenberger, L., Bowser, T., Zhang, H., Carrier, L., Payton, M. 2016, Evaluation of testing kits for routine soil analyses. Discourse Journal of Agriculture and Food Sciences. www.resjournals.org/JAFS ISSN:346-7002 Vol. 4(1): 1-10.
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
Food Safety website at: http://freshproducesafety.okstate.edu/ Oklahoma Fruit and Vegetable Association website at: http://www.okfva.org/
|
Progress 10/01/14 to 09/30/15
Outputs
Target Audience:Target audience includes commercial vegetable producers throughout the state. Changes/Problems:Challenges to completing work include weather issues i.e. late frost events, hail storms, etc. Address these issues through increasing trial locations to diversify the area covered to provide spread the risk from these events. Funding is always an issue due to difficulty in finding funding for applied field research. We have addressed this through funding requests to the Oklahoma Department of Agriculture, Food, and Forestry and industry partners, but we still are struggling with this issue. What opportunities for training and professional development has the project provided?Crop management i.e. irrigation, fertility, and pest management. How have the results been disseminated to communities of interest?Results will be shared through MP-164 2015 Vegetable Trial Report both as a printed report to be shared directly with individuals and the on-line version available at: http://www.hortla.okstate.edu/research-and-outreach/research/vegetable-trial-reports What do you plan to do during the next reporting period to accomplish the goals?During 2016 we plan to continue work on the cover crop reduced tillage work by harvesting overwinter spinach in the summer cover crop study and planting summer vegetable crops in the winter cover crop plots using reduced tillage methods.
Impacts
What was accomplished under these goals?
Evaluated new weed control chemistries and vegetable cultivars to determine their adaptability and usefulness within different tillage systems and areas of Oklahoma. Develop crop management and rotational practices for vegetable crops that will be used in reduced tillage systems. Major activities completed: Eleven cultivar trials were completed during 2015. Results available in MP-164 2015 Vegetable Trial Report as given above. One weed control study was completed during 2015. Results are available in MP-164 2015 Vegetable Trial Report as given above. Initiation of cover crop studies for reduced tillage studies in vegetable crops.Winter cover crops were established in fall 2013 with followed by a summer watermelon planting in 2015. Summer cover crop study was initiated in June of 2015 followed by fall planting of spinach. Report included in 2015 Vegetable trial report MP-164. All objectives were addressed particularly cultivar trials and cover crop studies. Significant results included eight different tomato trials completed for a wide geographic area of the state. These trials were challenging due to both weather and other crop cultural issues. Key outcomes or other accomplishments realized: Continued engagement with both with the Hmong people and the Otoe-Missouria and Ponca tribes. Both educational events and trials were begun with these groups. Key goals not yet met include: Developing crop management and rotational practices for vegetable crops that will be used in reduced tillage systems. Although not completed we were able to initiate the studies with the planting of winter cover crops in anticipation of planting spring and summer vegetable crops within the plots.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Brandenberger, L., Carrier, L., Williams, D. 2015. Cover crops for vegetables. Horticulture Industry Show Proceedings 34:115.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Brandenberger, L., McGlynn, W., Bihn, E. 2015. Food safety training and the Produce Safety Alliance. Horticulture Industry Show Proceedings 34: 116.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Brandenberger, L., Kahn, B., Carrier, L., Williams, D. 2015. Statewide tomato trials searching for heat set tomato varieties. Horticulture Industry Show Proceedings 34:132.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Shrefler, J., Taylor, M., Brandenberger, L. 2015. Vegetable Grading Standards. Horticulture Industry Show Proceedings 34:133-134.
- Type:
Websites
Status:
Published
Year Published:
2015
Citation:
Oklahoma Fruit and Vegetable Association website at: http://www.okfva.org/
- Type:
Websites
Status:
Published
Year Published:
2015
Citation:
Food Safety website at: http://freshproducesafety.okstate.edu/
|
Progress 10/01/13 to 09/30/14
Outputs
Target Audience: Target audience includes commercial vegetable producers throughout the state. Changes/Problems: Challenges to completing work include weather issues i.e. late frost events, hail storms, etc. Address these issues through increasing trial locations to diversify the area covered to provide spread the risk from these events. Funding is always an issue due to difficulty in finding funding for applied field research. We have addressed this through funding requests to the Oklahoma Department of Agriculture, Food, and Forestry and industry partners, but we still are struggling with this issue. What opportunities for training and professional development has the project provided? Professional development from completing research efforts include the following:Crop management i.e. irrigation, fertility, and pest management. How have the results been disseminated to communities of interest? Results are shared through MP-164 2014 Vegetable Trial Report both as a printed report to be shared directly with individuals and the on-line version available at: http://www.hortla.okstate.edu/research-and-outreach/research/vegetable-trial-reports What do you plan to do during the next reporting period to accomplish the goals? During 2015 we plan to continue work on the cover crop reduced tillage work by harvesting overwinter spinach in the summer cover crop study and planting summer vegetable crops in the winter cover crop plots using reduced tillage methods. During 2015 we will finish up heat-set tomato results.
Impacts
What was accomplished under these goals?
Evaluate new weed control chemistries and vegetable cultivars to determine their adaptability and usefulness within different tillage systems and areas of Oklahoma. Develop crop management and rotational practices for vegetable crops that will be used in reduced tillage systems. Eleven cultivar trials were completed during 2014. Results available in MP-164 2014 Vegetable Trial Report as given above. One weed control study was completed during 2014. Results are available in MP-164 2014 Vegetable Trial Report as given above. Initiation of cover crop studies for reduced tillage studies in vegetable crops. Winter cover crops were established in fall 2013 with followed by a summer watermelon planting in 2014. Summer cover crop study was initiated in June of 2014 followed by fall planting of spinach. Report included in 2014 Vegetable trial report MP-164. All objectives were addressed particularly cultivar trials and cover crop studies. Significant results included eight different tomato trials completed for a wide geographic area of the state. These trials were challenging due to bothweather and other crop cultural issues. Continued engagement with both with the Hmong people and the Otoe-Missouria and Ponca tribes. Both educational events and trials were begun with these groups. Key goals not yet met include: Developing crop management and rotational practices for vegetable crops that will be used in reduced tillage systems. Although not completed we were able to initiate the studies with the planting of winter cover crops in anticipation of planting spring and summer vegetable crops within the plots.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Shrefler, J.W., L.P. Brandenberger, B.A. Kahn, and D.R. Williams. 2014. On-farm evaluation of fresh market tomato cultivars for summer field production. HortScience 49:S287. (Abstract)
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Brandenberger, L., Post, A., Williams, D. 2014. Screening herbicides for Oklahoma sweet potato crops. Weed Science Society of America Annual Conference, Abstract #43.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Brandenberger, L., Kahn, B., Williams, D. 2014. Statewide tomato trials for heat set tomato varieties. Horticulture Industry Show Proceedings 33: 138.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Brandenberger, L., Shrefler, J., Post, A., Haase, J., Rice, C. 2014. Avoiding herbicide carry over from manure and other sources. Horticulture Industry Show Proceedings 33: 132-134.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Brandenberger, L., Williams, D. 2014. Sweet potato production and variety performance in OSU. Horticulture Industry Show Proceedings 33: 129-130.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Brandenberger, L., Williams, D. 2014. Sweet potato trials. Horticulture Industry Show Proceedings 33: 139.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Lamont, W., Anderson, M., Brandenberger, L. 2014. Plasticulture extended season growing workshop. Horticulture Industry Show Proceedings 33: 136.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Brandenberger, L., McGlynn, W., Bihn, E., Wall, G. 2014. Food safety training and the produce safety alliance (PSA) curriculum. Horticulture Industry Show Proceedings 33: 135.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Williams, D., Brandenberger, L., Kahn, B. 2014. Performance of determinant tomato varieties for hot weather production in Oklahoma. Horticulture Industry Show Proceedings 33: 127-128.
- Type:
Websites
Status:
Published
Year Published:
2014
Citation:
Food Safety website at: http://freshproducesafety.okstate.edu/
|
Progress 10/01/12 to 09/30/13
Outputs
Target Audience: Target audience includes commercial vegetable producers throughout the state. Changes/Problems: o Challenges to completing work include weather issues i.e. late frost events, hail storms, etc. o Address these issues through increasing trial locations to diversify the area covered to provide spread the risk from these events. o Funding is always an issue due to difficulty in finding funding for applied field research o We have addressed this through funding requests to the Oklahoma Department of Agriculture, Food, and Forestry and industry partners, but we still are struggling with this issue. What opportunities for training and professional development has the project provided? o Professional development from completing research efforts include the following: o Crop management i.e. irrigation, fertility, and pest management. How have the results been disseminated to communities of interest? o Results are shared through MP-164 2013 Vegetable Trial Report both as a printed report to be shared directly with individuals and the on-line version available at: http://www.hortla.okstate.edu/industry/vegetables/index.htm What do you plan to do during the next reporting period to accomplish the goals? o During 2014 we plan to begin following up on the cover crop reduced tillage work by planting spring or summer vegetable crops in the winter cover crop plots using reduced tillage methods. o During 2014 we plan on completing the heat-set tomato trials around the state. We plan to complete three or more trials in the coming season.
Impacts
What was accomplished under these goals?
o Ten cultivar trials were completed during 2013. Results available in MP-164 2013 Vegetable Trial Report as given above. o Four different weed control studies were completed during 2013. Results are available in MP-164 2013 Vegetable Trial Report as given above. o Initiation of cover crop studies for reduced tillage studies in vegetable crops. Winter cover crops were established in fall 2013 with spring and summer vegetable crops to follow in 2014. o Significant results included five different tomato trials completed for a wide geographic area of the state. These trials were challenging due to late spring frost events around the state and other related weather events (hail storms). o Other significant results were recorded from the national collaborators sweet potato trial with several advanced lines performing very well in the southwest area of the state which is a key production area for this crop. Contact and engagement of new groups of producers within the Hmong people and the Otoe-Missouria and Ponca tribes. Both educational events and trials were begun with these groups.
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
" Brandenberger, L., Shrefler, J., Kahn, B. 2013. Farmer tomato trials for heat set varieties. Horticulture Industry Show Proceedings 32: 143-144.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
" Brandenberger, L., Upson, S., Shrefler, J., Taylor, M., Rohla, C., Porter, M., Woodburn, K., Roberts, W., Kirby, C., Royer, T., McGlynn, W. 2013. Oklahoma Market Gardening Classes. Horticulture Industry Show Proceedings 32: 150.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
" Brandenberger, L., Kahn, B., Carrier, L., Rohla, C., Upson, S., Laughlin, J., Shrefler, J., Taylor, M., Roberts, W. 2013. Extended season leafy greens. Horticulture Industry Show Proceedings 32: 151.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
" Webber. C. III, Shrefler, J., Brandenberger, L., Davis, A., Taylor, M. 2013. Sequential Applications of Pelargonic Acid for Weed Control in Squash. Horticulture Industry Show Proceedings 32: 152-157.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
" Webber. C. III, Shrefler, J., Brandenberger, L., Davis, A., Taylor, M. 2013. AXXE� (Pelargonic Acid) and Racer� (Ammonium Nonanoate): Weed Control Comparisons. Horticulture Industry Show Proceedings 32: 158-161.
- Type:
Conference Papers and Presentations
Status:
Accepted
Year Published:
2013
Citation:
" Brandenberger, L., Kahn, B., Shrefler, J. 2013. Grower Trials for Heat-Set Capabilities in Tomato. HortScience supplement 48 (9): S 64 available at: http://ashs.org/downloads/supplement/2013SR-ASHS_AnnualMtg.pdf
- Type:
Websites
Status:
Accepted
Year Published:
2013
Citation:
Food Safety website at: http://freshproducesafety.okstate.edu/
|
Progress 10/01/11 to 09/30/12
Outputs
OUTPUTS: Ten studies were completed by the primary investigator with results reported in MP-164, 2012 Vegetable Trial Report and MP-162, 2012 Vegetable Weed Control Studies. Variety testing of vegetables was a collaborative effort between Brian Kahn, Jim Shrefler, and Lynn Brandenberger. Trials this year included tomato, sweet potato, watermelon, and sweet corn. These trials will provide cultivar selection information for crops to producers and processors. The tomato trials included 12 different varieties for heat-set testing. The sweet potato Cooperative trials are an on going effort by research and extension scientists at several different Land Grant Universities. This year's trial was conducted at the Ft. Cobb station. Sweet potato acreage has increased substantially in the south west area of the state, therefore the need to address the needs of this crop. Sweet corn varieties were evaluated at Bixby for ear quality and yield in the spring. A grower's trial was organized in the Jenks area for watermelon. Studies were completed on extended season leafy greens. This project is a joint effort between OSU and the Noble Foundation. These studies include trialing nine different cool season greens crops at four locations in high tunnel structures. Results of all these trials are available in the 2012 Vegetable Trial Report. Screening of crop tolerance to new herbicides was completed for pepper and watermelon. Trials were completed for preemergence and postemergence herbicides for commercial pepper production. Results of these studies are available in the 2012 Vegetable Weed Control Studies MP-162. PARTICIPANTS: Lynn Brandenberger, Brian Kahn, Hailin Zhang, Lynda Carrier, Schantz Family Farms, Koelsch Farm. TARGET AUDIENCES: Target audience includes commercial vegetable producers throughout the state of Oklahoma. PROJECT MODIFICATIONS: Project was revised for the next five year period.
Impacts
Performance testing of new vegetable cultivars and herbicides carried out within the state is essential for providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. Results of trials are being utilized to revise the extension OSU fact sheet HLA 6035 "Commercial Vegetable Varieties for Oklahoma". New weed control chemistries will provide for efficient production for vegetable crops where hand weeding costs can range in cost from a hundred to several hundred dollars per acre. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- MP-164, 2012 Vegetable Trial Report
- MP-162, 2012 Vegetable Weed Control Studies
|
Progress 10/01/10 to 09/30/11
Outputs
OUTPUTS: Seven studies were completed by the primary investigator with results reported in MP-164, 2010 Vegetable Trial Report. PARTICIPANTS: Lynn Brandenberger, Brian Kahn, Hailin Zhang, Lynda Carrier, Schantz Family Farms. TARGET AUDIENCES: Target audience includes commercial vegetable producers throughout the state of Oklahoma. PROJECT MODIFICATIONS: The project was modified from the previous year by trialing of different vegetable crops.
Impacts
Performance testing of new vegetable cultivars and herbicides carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. New weed control chemistries will provide for efficient production for vegetable crops where hand weeding costs can range in cost from a hundred to several hundred dollars per acre. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- MP-164, 2011 Vegetable Trial Report MP-162, 2011 Vegetable Weed Control Studies
|
Progress 10/01/09 to 09/30/10
Outputs
OUTPUTS: Eleven studies were completed by the primary investigator with results reported in MP-164, 2010 Vegetable Trial Report. Variety testing of vegetables was a collaborative effort between Brian Kahn, and Lynn Brandenberger. Trials this year included southern pea, tomato, pumpkin, and sweet corn. These trials will provide cultivar selection information for crops to producers and processors. The pumpkin trial included 14 different cultivars with both open pollinated and hybrid varieties. The southern pea Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A, this year's trials were conducted at the Bixby station. Sweet corn varieties were evaluated at Bixby for ear quality and yield both in the spring and the fall. Studies were initiated on extended season leafy greens. This project is a joint effort between OSU and the Noble Foundation. These studies include trialing nine different cool season greens crops at four locations in high tunnel structures. Results of all these trials are available in the 2010 Vegetable Trial Report. Screening for crop tolerance to new herbicides was completed for grape, cilantro and pepper. Four compounds were screened for us in grape production. Seven different compounds were screened for use in cilantro production including both pre and post emergence herbicides. Preliminary trials were completed for preemergence and postemergence herbicides for use in hooded sprayers for commercial pepper production. Results of these studies are available in the 2010 Vegetable Weed Control Studies MP-162. PARTICIPANTS: Lynn Brandenberger, Brian Kahn, William McGlynn, Hailin Zhang, Lynda Carrier, Schantz Family Farms, Triple S Farms, Crow Family Farm TARGET AUDIENCES: Target audience includes commercial vegetable producers throughout the state of Oklahoma. PROJECT MODIFICATIONS: The project was modified from the previous year by trialing of different vegetable crops and the addition of the extended season leafy green project.
Impacts
Performance testing of new vegetable cultivars and herbicides carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. New weed control chemistries will provide for efficient production for vegetable crops where hand weeding costs can range in cost from a hundred to several hundred dollars per acre. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- MP-164, 2009 Vegetable Trial Report
- MP-162, 2009 Vegetable Weed Control Studies
|
Progress 10/01/08 to 09/30/09
Outputs
OUTPUTS: Fifteen studies were completed by the primary investigator with results reported in MP-164, 2009 Vegetable Trial Report. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Nothing significant to report during this reporting period. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.
Impacts
Variety testing of vegetables was a collaborative effort between Brian Kahn, and Lynn Brandenberger. Trials this year included spring and fall brassica greens, southern pea, broccoli, and sweet corn. These trials will provide cultivar selection information for crops to producers and processors. The brassica greens trial included sixteen different cultivars of collard, kale and mustard, results from these trials included yield and quality measurements. The southern pea Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A, this year's trials were conducted at the Bixby station. Sweet corn varieties were evaluated at Bixby for ear quality and yield. Broccoli was also trialed this spring. Results of all these trials are available in the 2009 Vegetable Trial Report. Screening for crop tolerance to new herbicides was completed for cilantro, cowpea, and pepper. Seven different compounds were screened for use in cilantro production including both pre and post emergence herbicides. Cowpea was screened for tolerance to a new herbicide formulation that will soon be released for use in conventional and no-till production. A preliminary trial was completed for a postemergence herbicide for use in hooded sprayers for commercial pepper production. Results of these studies are available in the 2009 Vegetable Weed Control Studies MP-162. Performance testing of new vegetable cultivars and herbicides carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. New weed control chemistries will provide for efficient production for vegetable crops where hand weeding costs can range in cost from a hundred to several hundred dollars per acre. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- 2009 Vegetable Trial Report MP 164 and Vegetable Weed Control Studies in Oklahoma MP-162. 2009. Dept. of Horticulture & L.A.
|
Progress 10/01/07 to 09/30/08
Outputs
OUTPUTS: Thirteen studies were completed by the primary investigator with results disseminated in 2008 Vegetable Trial Report MP 164 and Vegetable Weed Control Studies in Oklahoma MP-162. Dept. of Horticulture & L.A. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Not relevant to this project. PROJECT MODIFICATIONS: Not relevant to this project.
Impacts
Performance testing of new vegetable cultivars and herbicides carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. New weed control chemistries will provide for efficient production for vegetable crops where hand weeding costs can range in cost from a hundred to several hundred dollars per acre. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- Webber, C.L. lll, Brandenberger, L.P., Shrefler, J.W., Taylor, M.L., J.W., Wells, L.K., and Shannon, D.K. 2008. Weed Control with the Precision Application of Ammonium Nonanoate. Precision Agriculture Journal. Submitted Oct. 29, 2008.
|
Progress 10/01/06 to 09/30/07
Outputs
OUTPUTS: Variety testing of vegetables was a collaborative effort between Brian Kahn, Jim Shrefler, and Lynn Brandenberger. Trials included carrot, melons, snapbean, sweet corn, and brassica greens. These trials will provide cultivar selection information for these crops to producers and processors. Brassica greens, melon, snapbean, and sweet corn varieties were evaluated at Bixby for quality and yield characteristics. Carrot varieties were evaluated at the Wes Watkins research and extension center in Lane. Results of all these trials are available in the 2007 Vegetable Trial Report MP-164. Fertility work was undertaken in spinach and watermelon to further refine fertility rates for these crops. Refinement of application rates will help producers to more efficiently manage fertility in these crops reducing crop inputs and environmental impacts. Results of these studies are available in the 2007 Vegetable Trial Report MP-164. Screening for crop tolerance to new herbicides was
completed for cowpea and pepper. Producer demonstration work was carried out to demonstrate cowpea tolerance to sulfentrazone. On farm research was carried out to screen for new compounds for use with spice pepper for weed control. Work was also completed for efficacy studies of a material that has potential in organic production as a postemergence burn-down herbicide. Results of these studies are available in the 2007 Vegetable Weed Control Studies MP-162.
PARTICIPANTS: Lynn Brandenberger: Professor horticulture food crops, appointment includes 75% extension and 25% research. Serves state educational and research needs of county extension educators and commercial industry. Acts as PI and Co-PI on several projects. Brian Kahn: Professor vegetable crops, appointment includes 75% research and 25% teaching. Serves state research needs for commercial vegetable crops, teaches vegetable production and other horticulture related course work. Acts as PI and Co-PI on several projects. William McGlynn: Associate Professor horticulture product processing, appointment includes 70% extension and 30% research. Serves state educational and research needs of horticulture product processing industry. Acts as PI and Co-PI on several projects. James Shrefler: Extension Specialist appointment is 100% extension. Serves in south east area of the state addresses information and educational needs of county extension educators and commercial industry. Acts as PI
and Co-PI on several projects. Partner Organizations included: USDA-ARS USDA Interregional Project # 4 Allen Canning Collaborators and contacts included: Hailin Zhang: Professor soil fertility, Plant and Soil Science department, Oklahoma State University, Stillwater, OK. Nilda Burgos: Associate Professor and Weed Scientist University of Arkansas, Fayetteville, AR. Charles Webber: Researcher USDA-ARS located at Wes Watkins Research and Extension Center at Lane, OK. Mark Payton: Professor Statistics department, Oklahoma State University, Stillwater, OK. Ronald Talbert: Professor and Weed Scientist University of Arkansas, Fayetteville, AR. Todd Cavins: Technical Specialist, SunGro Horticulture, Stillwater, OK.
TARGET AUDIENCES: Target audiences include commercial vegetable producers participated in field day and in on-farm demonstration work, large scale producers involved in production for processing industry and small scale producers involved in production for local fresh markets.
Impacts
Performance testing of new vegetable cultivars carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed cultivar selection decisions. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. Research completed for screening for new herbicides has a direct cost savings effect for vegetable producers within the state. Weed control in vegetables can cost hundreds of dollars per acre because of the need for hand weeding. Herbicides that have been recently labeled have had an important impact of production efficiency. The consuming public benefits from all these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- Burgos, N.R., Brandenberger, L.P., Stiers, E.N., Shivrain, V.K. Motes, D.R., Eaton, S., Martin, L.W., Morelock, T.E. 2007. Tolerance of selected advanced cowpea (Vigna unguiculata L.) breeding lines to fomesafen. Weed Technology 21(4): 863-868.
- Brandenberger, L.P., Shrefler, J.W., Webber, C.L. III, Talbert, R.E., Payton, M.E., Wells, L.K., Mcclelland, M. 2007. Injury potential from carryover of watermelon herbicide residues. Weed Technology 21 (2): 473-476.
- Brandenberger, L., McGlynn, W., Wells, L., Bostian, B., and Payton, M. 2007. Production and Quality Evaluations of Processing Carrots. Hort Technology 17 (1):133-135.
- 2007 Vegetable Trial Report MP 164. 2007. Dept. of Horticulture & L.A. Oklahoma State University.
- Brandenberger, L., Cavins, T., Payton, M., Wells, L., Johnson, T. 2007. Yield and Quality of Spinach Cultivars for Greenhouse Production in Oklahoma. Hort Technology 17(2): 269-272.
- Shrefler, J.W., Brandenberger, L.P., Webber, C.L., Roberts, W., Payton, M.E., and Wells, L.K. 2007. Postemergence weed control using halosulfuron in direct-seeded watermelon. Weed Technology 21 (4): 851-856.
|
Progress 10/01/05 to 09/30/06
Outputs
Variety testing of vegetables was a collaborative effort between Brian Kahn, and Lynn Brandenberger. Trials included eggplant, southern pea, snapbean, sweet corn, and tomato. These trials will provide cultivar selection information for this crop to producers and processors. The southern pea Southern Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A, this year's trials were conducted at the Bixby station. Snapbean varieties were evaluated at Bixby for quality and yield characteristics. An extensive eggplant trial was conducted at Bixby, data collected included yield, fruit quality, and plant structural measurements. Sweet corn varieties were evaluated at Bixby for ear quality and yield. A tomato trial was completed in the spring at Bixby evaluating earliness, fruit quality and yield. A second tomato trial included Surround a spray material meant to lower crop temperature and reduce
insect feeding on the crop. Results of all these trials are available in the 2006 Vegetable Trial Report. Screening for crop tolerance to new herbicides was completed for spinach, cilantro, basil, and dill. Both advanced breeding lines and cultivars of cowpea were screened for tolerance to sulfentrazone and to halosulfuron. Results of these studies are available in the 2006 Vegetable Weed Control Studies MP-162.
Impacts
Performance testing of new vegetable cultivars carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed cultivar selection decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- Brandenberger, L. 2006. 2006 Vegetable Trial Report MP 164 and Vegetable Weed Control Studies in Oklahoma MP-162. Dept. of Horticulture & L.A.
|
Progress 10/01/04 to 09/30/05
Outputs
Variety testing of vegetables was a collaborative effort between Brian Kahn, and Lynn Brandenberger. Trials included carrot, cabbage, eggplant, southern pea, spinach, snapbean, sweet corn, and tomato. Two carrot trials were completed this past year, one in Caddo County and one at Bixby. These trials will provide cultivar selection information for this crop to producers and processors. The southern pea Southern Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A, this years trials were conducted at the Bixby station. one spinach trial, was completed during the spring season in Pottawatomie County. Data collected included color intensity of the foliage, bolting and yield potential. Cabbage, and snapbean varieties were evaluated at Bixby for quality and yield characteristics. Further testing of cabbage was also carried out in Blaine County in the spring. An extensive eggplant trial was
conducted at Bixby, data collected included yield, fruit quality, and plant structural measurements. Sweet corn varieties were evaluated at Bixby and Pottawatomie County for ear quality and yield. A tomato trial was completed in the spring at Bixby and was primarily concerned with the use of reflective mulches to reduce the incidence of beet curly top virus. Results of all these trials are available in the 2005 Vegetable Trial Report.
Impacts
Performance testing of new vegetable cultivars carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed cultivar selection decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- 2005 Vegetable Trial Report MP 164. Dept. of Horticulture & L.A. 2005.
|
Progress 10/01/03 to 09/30/04
Outputs
Variety testing of vegetables was a collaborative effort between Brian Kahn, Warren Roberts, James Shrefler and Lynn Brandenberger. Trials included carrot, cabbage, broccoli, southern pea, spinach, snapbean, sweet corn, tomato, and watermelon. Two carrot trials were completed this past year, one in Caddo County and one at Bixby. These trials will provide cultivar selection information for this crop to producers and processors. The southern pea Southern Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A, this years trials were conducted at Bixby and the Goodwell station. Four spinach trials, were completed during the spring season in Blain County. Each trial was conducted this past spring with nine cultivars planted at high densities. Data collected included color intensity of the foliage, bolting and yield potential. Cabbage, broccoli, and snapbean varieties were evaluated at Bixby for
quality and yield characteristics. Further testing of cabbage was also carried out in Blaine County both in the spring and fall. Sweet corn varieties were evaluated at Bixby for ear quality and yield. A tomato trial was completed in the spring at Bixby and was primarily concerned with the use of reflective mulches to reduce the incidence of beet curly top virus. Results of all these trials are available in the 2004 Vegetable Trial Report.
Impacts
Performance testing of new vegetable cultivars carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed cultivar selection decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- No publications reported this period
|
Progress 10/01/02 to 09/30/03
Outputs
Variety testing of vegetables was a collaborative effort between Brian Kahn, Warren Roberts, James Shrefler and Lynn Brandenberger. Trials included carrot, southern pea, spinach, summer squash, sweet corn, tomato, onion, watermelon and strawberry. Three carrot trials were completed this past year, two in Caddo County and one at Bixby. These trials will provide cultivar selection information for this crop to producers and processors. The southern pea Southern Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A, this years trial was conducted at the Goodwell station. Two spinach trials, each with four planting dates were completed during the spring season in Caddo County. The first trial observed several cultivars planted at higher densities and the second was a standard variety trial. Data collected included color intensity of the foliage, bolting and yield potential. Strawberry cultivars
were tested at Bixby, and were evaluated for use in an annual production system for potential yield and quality characteristics. Squash varieties were evaluated at Bixby for fruit quality and yield characteristics. Onions were evaluated for their potential for use in restaurants and for direct marketing to consumers. This program has been on going for several years and much progress has been made in establishment methods and in varietal selection. Sweet corn varieties were evaluated at Bixby for ear quality and yield. Tomato trials were initiated in the spring at Bixby, but due to a widespread infection of beet curly top virus the trials were not carried through to harvest. Two watermelon cultivar trials were conducted at the Wes Watkins Agricultural Research and Extension Center at Lane, Oklahoma, in 2003. These trials are part of a collaborative effort with Texas A&M. The trials included 14 diploid and 30 triploid watermelon varieties and evaluated these for both quality and yield
characteristics. Results of all these trials are available in the 2003 Vegetable Trial Report.
Impacts
Performance testing of new vegetable cultivars carried out within the state is key to providing unbiased and objective information to the vegetable industry. Providing this information will assist producers in making informed cultivar selection decisions resulting in greater economic returns to the farm and state. Improved cultivars with pest resistance can help reduce the use of pesticides in production and reduce the potential of environmental risk from their use. The consuming public benefits from these efforts because of increased production efficiency and the corresponding cost savings and the availability of higher quality vegetables.
Publications
- 2003 Vegetable Trial Report MP 164. Dept. of Horticulture & L.A.
|
Progress 10/01/01 to 09/30/02
Outputs
Annual cultivar/breeding line field-testing was carried out on three different vegetable crops and strawberries during this past spring and summer season. Vegetable trials included carrot, southern pea and spinach. A carrot trial was organized and completed at Bixby to provide cultivar selection information to both producers and processors of this crop that has shown promise for the industry in our state. The southern pea Southern Cooperative trials are an on going effort by research and extension scientists at five different Land Grant Universities and U.S.D.A. Our trial at Bixby included advanced southern pea breeding lines that are near release to the commercial industry and well established commercially available cultivars as industry standards for comparison. The spinach trial at Bixby was initiated in the spring and included ten different cultivars in evaluations that recorded data on seedling vigor, color intensity of the foliage, bolting and yield potential.
Information collected from this effort will be utilized by spinach producers in the state when selecting spinach for spring production. Strawberry cultivars were studied in a cooperative effort with OSU at Bixby and the Noble Foundation in Ardmore. The study included six strawberry cultivars for use in an annual production system and worked toward determining their potential for yield and quality characteristics.
Impacts
(N/A)
Publications
- 2002 Vegetable Trial Report MP 164. Dept. of Horticulture & L.A.
|
Progress 10/01/00 to 09/30/01
Outputs
Annual cultivar/breeding line field-testing was carried out on ten different vegetable crops during this past spring and summer season. Trials were carried out at the Bixby Vegetable Station, Lane and at other locations in growing areas throughout the state. Spring trailing of spinach was carried out at three locations in the state, one at Bixby and two in the western area of the state. These trials provided valuable data concerning yield potential, quality attributes such as leaf color intensity and bolting resistance of nine different cultivars. A comprehensive trial of both diploid and triploid watermelon cultivars was carried out at the Lane Station this past spring initiating a cooperative effort between Oklahoma and Texas to help standardize the cultivars trailed and the methods used to trial them.
Impacts
(N/A)
Publications
- 2001 Vegetable Trial Report. Dept. of Horticulture & L.A.
|
Progress 10/01/99 to 09/30/00
Outputs
Field testing and selection continued on advanced paprika pepper lines in an effort to develop a cultivar suitable for machine harvest production in Oklahoma. Annual cultivar/breeding line trails continued at teh Vegetable Research Station in Bixby and at other locations around the state. Stake-and-weave culture was compared to cage culture for 10 tomato cultivars at Bixby. Total marketable fruit yilds were higher with cage culture (mean = 57.5 Mg ha) than with stake-and-weave culture (mean = 37.08 Mg ha). The 10 cultivars did not differ in total marketable fruit yields. In an observational tomato cultivar trila (2 replications, cage culture) with 25 entries, 'Mountain Supreme' and 'Valley Girl' showed high marketable yields and low cull fruit production. 'Jersey Giant' remained the top yeilding cultivar in an asparagus trial planted at Bixby in 1990.
Impacts
(N/A)
Publications
- KAHN, B. and M. WOLF. 2000. 1999 Vegetable Trial Report. Dept. of Horticulture and L.A. Mineo 00-1, 30 p.
|
Progress 10/01/98 to 09/30/99
Outputs
Plant Variety Protection (PVP) was approved by the USDA for `Okala' chile. `Okala' is similar in growth habit to `Bahamian' chile but has about twice the pungency. `Okala' is being produced in Oklahoma under license to producers and a processor. Field testing and selection continued on advanced paprika pepper lines in an effort to develop a cultivar suitable for machine harvest production in Oklahoma. Annual cultivar/breeding line trials continued at the Vegetable Research Station in Bixby and at other locations around the state. Five cowpea breeding lines from Arkansas (four pinkeyes and a cream) did not differ from `Coronet' in dry seed yield per hectare in a replicated trial on a vegetable farm in Caddo County, Oklahoma. Fourteen heirloom tomato cultivars were grown in an unreplicated demonstration at Bixby. `Arkansas Traveler' was the best producer of marketable fruit, although its average marketable fruit fresh weight was only about 130 grams.
Impacts
(N/A)
Publications
- KAHN, B. and J. MOTES. 1999. 1998 Vegetable Trial Report. Dept. of Horticulture & L.A. Mimeo 99-1, 24 p.
|
Progress 10/01/97 to 09/30/98
Outputs
`Superhot' chile was grown in field tests with other hot chile cultigens to collect information needed to support the application for Plant Variety Protection. `Superhot' was licensed in 1998 to Oklahoma producers and a processor for production restricted to Oklahoma. Further testing and selection was done on advanced paprika pepper lines toward finishing a cultivar for release. Extractable pod color is acceptable as well as machine harvestability. However, yield has been marginal for an acceptable economic return for Oklahoma farmers at current processor prices. Annual cultivar/breeding line trials continued at the Vegetable Research Station in Bixby. Ten tomato cultivars were entered in a spring cultural study. Stake and weave culture resulted in higher early yields and lower cull yields than cage culture, but cultural systems did not affect total marketable yields. `Heatwave' and `Mountain Supreme' tomatoes appeared especially promising for commercial production in
eastern Oklahoma.
Impacts
(N/A)
Publications
- MOTES, J. 1998. Being more competitive at the market. Proc. Hort. Ind. Show 17:206-207.
- MOTES, J., W. ROBERTS, AND J. SHREFLER. 1997. Weed Control in Vegetables - 1998. OSU Current Report 6008, 4 p.
- MOTES, J. and B. KAHN. 1998. 1997 Vegetable Trial Report. Dept. of Horticulture & L.A. Mimeo 98-1, 30 p.
|
Progress 10/01/96 to 09/30/97
Outputs
Field evaluation of advanced paprika lines developed for once-over machine harvest were conducted again in 1997. A relativley cool and wet growing season was detrimental to fruit set and promoted bacterial leaf spot disease which caused leaf drop and flower loss. Consequently, paprika yield was too low for commercial acceptance, however, American Spice Trade Association (ASTA) color values are commercially acceptable in the paprika lines. An advaqnced chile line OKSH4-11 was released and named "Superhot." This variety is the finished product of several years breeding and selection efforts to develop a machine-harvestable highly pungent chile adapted to irrigated areas in Oklahoma. Yields average 2,500 pounds per acre dry weight and pungency is 350,000 Scoville. This relatively high level of pungency makes the chile atractive for extraction of capsaicin for use in processed foods, pharmaceuticals, and other uses.
Impacts
(N/A)
Publications
- KAHN, B.A., MOTES, J.E. AND MANESS, N.O. 1997. Use of ethephon as a controlled abscission agent on paprika pepper. HortScience
- CONWAY, K.E., MANESS, N.O., AND MOTES, J.E. 1997. Integration of biological and chemical controls for Rhizoctonia aerial blight on root rot of rosemary. Plant Disease 81:795-798.
- MOTES, J.E. AND KAHN, B.A. 1997. Paprika pepper development for Oklahoma. Proc. Hort. Ind. Show 16:262-263.
- MOTES, J.E. AND KAHN, B.A. 1997. Vegetable trial report-1996. Dept. of Hort. & L.A. mimeo 97-1, 31p.
- MOTES, J.E. AND ROBERTS, W. 1997. Weed Control in Vegetables - 1997. OSU Current Report 6008, 4pp.
|
Progress 10/01/95 to 09/30/96
Outputs
Field evaluation of advanced paprika lines developed for once-over machine harvest were conducted in 1995 and 1996. Yield and extracted color evaluation indicated that economic yield levels have been reached and American Spice Trade Association (ASTA) color values are commercially acceptable. OSU paprika lines 50-38, 50-66 and 50-45 all had yields in excess of one ton/acre dry weight with ASTA color values exceeding 250. Plant lodging was rated and none of these lines had plants falling over which would make machine harvest difficult. Seed will be increased in 1997 for grower scale field trials in southwestern Oklahoma in 1998. Field production problems still exist with the most critical area being stand establishment with direct field seeding due to strong spring winds and blowing soil. OSU paprika lines are very susceptible to nematodes common on peanut land. Bacterial spot disease also reduces yield and resistance has been incorporated into the most recent paprika
lines.
Impacts
(N/A)
Publications
- MOTES, J.E. AND KAHN, B.A. 1996. Vegetable trial report. Oklahoma State University Horticulture Memo. 96-1 January 1996, 26 pp.
- MOTES, J.E. AND ROBERTS, W. 1996. Weed control in vegetables - 1996. OSU CurrentReport 6008, 4 pp.
- MANESS, N.E., MOTES, J.E. AND BOSTIAN, B. 1995. Effects of nitrogenrates and final fall harvest timing on sage (Salvia officinalis). (Abstr.) HortScience 30:426.
- MOTES,J.E., BOSTIAN, B. AND MANESS, N.E. 1995. Production environment influence on pepper pungency. (Abstr.) HortScience 30:887.
- MOTES, J.E., KAHN, B.A. AND MANESS, N.O. 1995. Use of ethephon as a controlled abscission agent on paprika pepper. (Abstr.) HortScience.
|
Progress 10/01/94 to 09/30/95
Outputs
Field studies were conducted in 1994 and 1995 to evaluate the application of theantitranspirant pinolene (Vapor-Gard, Miller Chemical) on yield and pungency of chile pepper in Oklahoma. Results in 1994 showed that pinolene sprayed as a 1% or 2% solution in 50 or 100 gallons/acre in midsummer did not increase yield. Pungency was reduced about 10% and the possible explanation is that pinolene reduced water stress which is known to lower pungency but did not reduce stress enough to increase fruit set and yield. Other field studies were conducted to evaluate pungency retention in pepper fruit between fall frost and harvest which is four to six weeks later. Pinolene was applied soon after fall frost and leaf drop to coat the fruit. Results indicate that pinolene was not effective in reducing pungency loss from pepper fruit after fall frost. It appears pinolene was not effective in increasing yield in these studies.
Impacts
(N/A)
Publications
- MOTES, J.E. AND KAHN, B.A. 1995. Vegetable trial report. Oklahoma State University Horticulture Memo. 95-1 January 1995, 24 pp.
- MCCULLOUGH, M.D., MOTES, J.E. AND KAHN, B.A. 1995. Soil bedding treatments improve pepper plant anchorage. HortScience 30:1202-1204.
- MOTES, J.E. AND ROBERTS, W. 1994. Weed control in vegetables - 1995. OSU Current Report 6008, 4 pp.
- MOTES, J.E., BOSTIAN, B. AND MANESS, N. 1995. Production environment influence on pepper pungency. HortScience 30:887. (Abstract).
|
Progress 10/01/93 to 09/30/94
Outputs
Three years of field plot research has been completed with sage and thyme. Studies involved last fall harvest date, nitrogen rate and in-row spacing of transplants. The harvest date and nitrogen rate study results have provided information on when to conduct the final fall harvest to maximize yield and to reduce winter plant loss. The four targeted last harvest dates were September 20, October 11, November 1 and November 22. Three N rates were 54, 108 or 162 lbs/A. Harvest date results indicate the latest date (November 22) produces the greatest yield. Sage had less plant mortality at the later harvest date. Thyme mortality was not influenced by harvest date. Both herbs produced greater yield with increased N rate. It appears that even higher N rates than 162 lbs/A may be beneficial to yield. The influence of N rate and harvest frequency on sage and thyme quality is being evaluated. In-row spacing of transplants were 8, 12, 16 and 20 inches for sage and 16, 24, 32 and
39 inches for thyme. Results indicate that the yield of both sage and thyme were similar after three years regardless of in-row transplant spacing. Longevity of the field plantings of sage and thyme is not known. However, after three years, the plant vigor does not appear to be diminished if last harvest is in late November.
Impacts
(N/A)
Publications
- MOTES, J.E., MANESS, N.E., KINSELLA, A.M. and SCHATZER, R.J. 1994. Field production of sage and thyme. Proc. Hort. Ind. Show 13:67.
- MOTES, J.E. and KAHN, B.A. 1994. Vegetable trial report. Oklahoma State University Horticulture Memo. 94-1 January 1994, 26 p.
- MCCULLOUGH, M.D. 1994. Bedding and nitrogen treatments for spice pepper production. M.S. Thesis, Oklahoma State Univ., Stillwater. 67 p.
- MOTES, J.E., ROBERTS, B.W. and KAHN, B.A. 1994. Vegetable varieties for Oklahoma OSU Extension Facts 6032, 4 p.
|
Progress 10/01/92 to 09/30/93
Outputs
An advanced chile line with a very high level of extractable oleoresin capsaicinis near release. Pungency levels in excess of 400,000 Scoville Units and a machine harvestable plant structure are unique attributes of the chile. The extracted capsaicin has commercial uses in processed foods, pharmaceutical products and in animal repellant products. The new line resulted from an interspecific cross using Capsicum chinense `Habanero' and C. annuum `Bahamian Hot Chile'. Cultural studies with sage and thyme evaluating in-row spacing, nitrogen rate and harvest timing is in the third and final year. After two years no difference is evident in yield due to in-row transplant spacing. Transplanting costs were greater with higher plant populations and production function analyses will be used to determine the most profitable in-row spacing. Higher nitrogen rates generally increased yield in both herbs. Plant stand loss was influenced by harvest timing. Late fall (September to
October) harvest caused sage to be vulnerable to plant injury from late fall freezes. Rosemary cuttings are susceptible to Rhizoctonia solani while on the mist bench for rooting. Iprodione and biocontrol agent Trichoderma harzianum or experimental chemical CGA 173506 and Laetisaria arvalis appear to be synergistic in controlling R. solani on the mist bench.
Impacts
(N/A)
Publications
- MOTES, J.E. and KAHN, B.A. 1993. Vegetable trial report. Oklahoma State University Horticulture Memo. 93-1 January 1993, 44 pp.
- MOTES, J.E. and KAHN, B.A. 1993. The Oklahoma spice pepper and herb development program. Proc. 12th Oklahoma Horticulture Industries Show, 12:83-84.
- MANESS, N.E., MOTES, J.E. and CONWAY, K.E. 1993. Effects of Rhizoctonia solani density in potting soil on efficacy of biological and chemical treatments in rosemary propagation. HortScience 28:273. (Abstract).
|
Progress 10/01/91 to 09/30/92
Outputs
Sage, thyme and rosemary production continues to look promising in Oklahoma. Rosemary lacks cold hardiness necessary to grow in Oklahoma except in the extreme southern portion of the state. A comparison of frequent harvest versus normal harvest was conducted in sage. Frequent harvest plots were cut 4 times yielding 5425 lbs/A and normal harvest 3 times yielding 4459 lbs/A. Frequent harvest has superior quality with fewer stems. Field selections of superior types of Dalmatian sage were made from several sources. Horticulturally superior plants were analyzed for antioxidant activity and high antioxidant activity plants were asexually propagated to establish a seed block to produce seed to test if high antioxidant activity is stable through seed propagated plants. Other sage types are being analyzed to compare with the quality of the Dalmatian sage. All three herbs are being evaluated for in-row plant density with 40-inch between-row spacing. Yields were higher in the
more dense plots. This was expected the first year; however, due to plants filling in rows, the yields are expected to be closer in future years. With these results we will determine the most economical in-row spacing.
Impacts
(N/A)
Publications
- MOTES, J.E. and SCHATZER, R.J. 1992. Influence of culture on fresh market tomato production costs. HortScience 27:664. (Abstract).
- MOTES, J.E. and KAHN, B.A. 1992. Vegetable trial report. Oklahoma State University Horticulture Memo. 92-1 January 1992, 25 pp.
- MANESS, N.E., BOSTIAN, B. and MOTES, J.E. 1992. Herb research update. Proc. 11th Oklahoma Horticulture Industries Show, 11:44-48.
|
Progress 10/01/90 to 09/30/91
Outputs
Sage, thyme and rosemary field plots were established to evaluate nitrogen fertilization rate on yield and quality. Date of last fall harvest and nitrogen rate are being evaluated to determine influence on overwintering and subsequent yield. Four fall harvest dates include two dates after normal fall freezes occur. The economics of plant population concerning establishment costs and yield are also being evaluated for all three herbs. Rhizoctonia aerial blight on rosemary has been identified as a serious disease of cuttings in the greenhouse. This disease rapidly spreads through potting soils and from cutting to cutting when propagated in foam blocks. Fungicides and biological control agents are being evaluated as controls for this disease. A 13-year asparagus cultivar evaluation was completed and results indicated all-male hybrid cultivars and lines from Rutgers were superior in yield to U.C. 157 and standard cultivars Mary Washington and Viking. Average plot yields
were 6,000 to 7,000 lbs/acre of snapped spears for Jersey Gem, Jersey Giant, Greenwich and Jersey King while U.C. 157 averaged near 5,000 and Mary Washington 3,000 lbs/acre. One problem with the all-male hybrids is ferning-out on short spears during 85(degree)F and warmer harvest conditions. A 9-inch snapped spear length is not possible under warm conditions in Oklahoma except with U.C. 157.
Impacts
(N/A)
Publications
|
|