Progress 10/01/19 to 09/30/20
Outputs
Target Audience:The target audience includes potato growers, potato industry and university agricultural extension persons in Pennsylvania; potato breeders and researchers in the US; private companies such as such as UTZ, BASF, Gowan, Simplot, etc. Changes/Problems:We had a hot and dry summer in 2020; so potato yield may be low this year due to weather. We will need to re-evaluate some varieties again next year. We will need to improve our irrigation system at our research farm. We planned to have potato variety demonstration trials in three locations in PA in 2020. However, we can only have demonstration trials in two locations due to the pandemic. We plan to have potato variety demonstration trials in three locations in PA in 2021. What opportunities for training and professional development has the project provided?Presentations on education ofpotato varieties and production were given to Pennsylvania potato growers and industry at 2020 Potato Field Days in Lehigh Co. and Erie Co., respectively. We trained one postdoctoral researcher in conducting potato variety evaluation trials in 2020. We trained one part-time student to work on potato field experiments in the summer 2020. How have the results been disseminated to communities of interest?The results of our potato germplasm and disease evaluations were presented to potato growers, researchers and industry at Erie County Potato Test Plot Day October 2019; 2020 Northeast Regional NE1731 Annual Meeting, Mid-Atlantic Fruit and Vegetable Convention 2020, PA Potato Research Program Board Winter and Summer Meetings 2020, and a potato variety demonstration trial in Lehigh county September 2020. The results of 2019 trials of germplasm and disease evaluations were summarized in a book entitled, "Pennsylvania Potato Research Report, 2019" and the book was distributed to potato growers, extension persons, breeders, researchers and industry. What do you plan to do during the next reporting period to accomplish the goals?Goal 1: We will conduct our potato germplasm evaluation trials to look for better varieties/breeding lines for PA growers and industry. We have a new research grant approved to evaluate and select potato varieties to replace "Norwis" in Pennsylvania in 2021. We will work with Pennsylvania Co-operative Potato Growers, Inc., Sterman Masser, Inc., and PA potato growers, packers, processors on this project to identify fresh cut potato varieties to replace Norwis that may be economically viable to produce in PA. We will collect potato varieties/breeding clones with similar characteristics as Norwis from most potato breeding programs in the US. These varieties will be evaluated in field trials and in the lab for fresh cut quality as well as yield, size, tuber internal and external defects, and disease resistance. Two or three varieties with good qualities for fresh cut and other characteristics will be identified. Results will be shared with stakeholders and potato growers at grower meetings and potato field days. Goal 2: We will conduct potato disease management trials and provide PA growers updated disease management information. We will evaluate new potato varieties/breeding clones for resistance to late blight, early blight and common scab. We will evaluate new chemicals for control of potato early and late blights. Goal 3: We will cooperate with University of Maine, Cornell University, North Carolina State University and USDA Agricultural Research Service (ARS) to develop disease-resistant potato germplasm and develop new potato varieties for the Eastern US. We will collect advanced potato breeding clones from these potato breeding programs and evaluate these clones in PA. Goal 4: We will deliver printed reports of our field trials to PA growers and industry. We will have potato variety demonstration trials, which will be shown to Pennsylvania growers.
Impacts
What was accomplished under these goals?
Goal 1 (Xinshun Qu): In 2019, potato variety evaluation trials were conducted at four locations in PA. At the Rock Springs location the variety trial included 98 round whites with a few yellow flesh, 31 red-skinned (a few purple skinned) and 29 russet or long white types. An early variety trial of 38 varieties was conducted at Rock Springs. The Lehigh location and Erie location had 34 and 38 varieties, respectively. Snack Food Association trial of sevenchipping varieties was conducted in Chambersburg. We assessed yield, tuber size, internal defects and external defects, skin color, texture, tuber shape, specific gravity and overall appearance, french fry and chip quality. High quality potato varieties and breeding clones for processing, fresh market, and specialty uses were selected and introduced to Pennsylvania growers and industry. We had a field screening trial of fivevarieties obtained from North Carolina State University for heat tolerance at Rock Springs for the second year. We cooperated with Pennsylvania Co-operative Potato Growers, Inc., Sterman Masser, Inc. and Keystone Potato Products to evaluate about 35 russet varieties in three locations in PA for the second year and we identified threerusset potato varieties with good qualities for PA growers. In 2020, we are evaluating 140 potato varieties/breeding clones at thePenn State research farm at Rock Springs, 33 varieties/breeding clones in Northampton Co., and 32 potato varieties/breeding clones in Erie Co. We have an early season field evaluation trial (85-90 days) of 27 varieties including fourstandards at Rock Springs. We have early season out of field chipping trial with sixvarieties at Rock Springs. We continue to cooperate with Pennsylvania Co-operative Potato Growers, Inc., Sterman Masser, Inc. and Keystone Potato Products to evaluate russet varieties for nitrogen rates and seed spaces in three locations in PA. This is the third year of the trial. Three varieties including Silverton Russet, Goldrush and Russet Norkotah Russet were selected based on our previous two years' evaluations. All field trials are being harvested and all tuber characteristics are being evaluated. We identified several candidate genes associated with potato plant maturity and tuber dormancy. The candidate genes were cloned and transferred into potato plants. The transgenic plants were evaluated in field trials at Rock Springs in 2020 and we are in the process of data collection. Goal 2 (Xinshun Qu): In 2019, 288, 407 and 286 varieties, respectively, and advanced breeding clones were evaluated for resistance to early blight, late blight and common scab at Rock Springs. Resistant varieties and advanced breeding clones to each disease were selected. A potato late blight fungicide trial with fourtreatments and an early blight fungicide trial with 11 treatments were conducted at Rock Springs. All treatments significantly reduced foliar late blight/early blight and significantly increased tuber yield compared to the untreated controls. In 2020, 42, 308 and 45 varieties, respectively, and advanced breeding clones were evaluated for resistance to early blight, late blight and common scab at Rock Springs. We are in the process of data analyses to select resistant varieties/breeding clones. A potato late blight fungicide trial with 15 treatments and an early blight fungicide trial with seventreatments were conducted at Rock Springs. Both trials were just harvested; we are in the process of evaluation of tuber yield and disease. We identified candidate genes associated with early blight and common scab using genome-wide association studies. The candidate genes were cloned and transferred into disease susceptible potato varieties. The transgenic plants were evaluated for disease resistance in field trials at Rock Springs in 2020 and we are in the process of data analyses. Goal 3 (Xinshun Qu): In 2019, we evaluated 33 advanced breeding clones collected from potato breeding programs in the Eastern US at the Penn State Russell E. Larson Agricultural Research Center at Rock Springs. The data of evaluations will be used forpotential new potato variety releases in cooperation with potato breeding programs in the Eastern US. In 2020, we evaluated 26 advanced breeding clones collected from potato breeding programs in the Eastern US at the Penn State Russell E. Larson Agricultural Research Center at Rock Springs. The trials were just harvested. All tubers are being evaluated for yield, size distribution, internal and external defects, and processing characteristics. Goal 4 (Francesco Di Gioia, Xinshun Qu): In 2019, we hadpotato variety demonstration trials of 30 varieties at Rock Springs which wereshown to visitors during 2019 Ag Progress Days, and in Lehigh Co. and Erie Co. which were shown to potato growers during 2019 Potato Field Days in each county. In 2020, we hadpotato variety demonstration trials about 30 varieties in Lehigh Co. and Erie Co. which were shown to potato growers during 2020 Potato Field Days in each county.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Qu XS, Xue WY, Peck MW. 2020. Evaluation of potato cultivars and breeding lines for resistance to late blight, 2019. Plant Disease Management Reports 14: V015.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Qu XS, Xue WY, Peck MW. 2020. Evaluation of potato cultivars and breeding lines for resistance to early blight, 2019. Plant Disease Management Reports 14: V016.
- Type:
Journal Articles
Status:
Published
Year Published:
2020
Citation:
Qu XS, Xue WY, Peck MW. 2020. Evaluation of potato cultivars and breeding lines for resistance to common scab, 2019. Plant Disease Management Reports 14: V113.
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Progress 10/01/18 to 09/30/19
Outputs
Target Audience:The target audience includes potato growers, potato industry and university agricultural extension persons in Pennsylvania; potato breeders and researchers in the US; private companies such as such as BASF, Gowan, Simplot, Parkland Seed Potatoes, Sunrain, Solanum International, Hanse Seed, etc. Changes/Problems:We have selected a few potato varieties with good qualities for table stock, French fry and chipping under Pennsylvania field conditions from our previous years' evaluations. However, it takes time for growers to adopt these new varieties. We plan to have more communications with growers to introduce these varieties. Pennsylvania has diverse environmental conditions. Selecting potato varieties for various locations across Pennsylvania require considerable planning and flexibility to respond to changing weather, field conditions and planting and harvesting windows to conform with regional potato production practices. We recognize that identifying a good potato variety needs multi-site and multi-year evaluations. We will put more varieties/advanced breeding clones in evaluation trials at grower's farms at various locations and hope to identify more locally adapted potato varieties. What opportunities for training and professional development has the project provided?Presentations on education on potato varieties and production were given to Pennsylvania potato growers and industry at Lehigh Twilight Potato Field Meeting in September 2019 and Erie Potato Test Plot Day in September 2019. We also trained one postdoctoral researcher in conducting this project. How have the results been disseminated to communities of interest?The results of our potato germplasm and disease evaluations were presented to potato growers, researchers and industry at 2019 Northeast Regional NE1731 Annual Meeting, Mid-Atlantic Fruit and Vegetable Convention 2019, PA Potato Research Program Board Meeting 2019, Lehigh Twilight Potato Meeting 2019 and Erie County Potato Meeting 2019. We visited grower's farms to have direct communications with growers during 2019 growing season. We had potato demonstrations in three counties to show best potato varieties to growers and industry during AG Progress Days and Potato Field Days in 2019. The results of 2019 trials of germplasm and disease evaluations will be summarized in a book entitled "Pennsylvania Potato Research Report, 2019" and the book will be distributed to potato growers, extension persons, breeders, researchers and industry. What do you plan to do during the next reporting period to accomplish the goals?We are in process of evaluating all tuber characteristics and analyzing data of all 2019 variety trials. By the end of 2019, we will know varieties/breeding clones with high qualities for fresh, chipping and French Fry. We plan to put these varieties/breeding clones with high qualities in our demonstration trials and recommend these varieties to Pennsylvania growers and industry in 2020. Based on the data of our 2019 evaluations, we will re-evaluate some breeding clones with high qualities for fresh market and processing in 2020 and will communicate with breeders for potential release as new varieties. Every year there are some new varieties and advanced breeding clones coming out from different breeding programs in the US. We will communicate with potato breeders in the US and collect some of these new varieties and advanced breeding clones with high quality potentials and evaluate them in 2020 in Pennsylvania. We selected and re-evaluated about 30 russet potato varieties with good/fair qualities in 2019 in three locations in Pennsylvania based on the data 2018 evaluation. Based on the data of 2019 evaluation, we will select 2 to 3 russet potato varieties with best qualities and plan to evaluate them in field trials to determine optimum cultural practices and disease susceptibility of these varieties in 2020 and will provide Pennsylvania potato growers and industry with cultural and disease management information for these varieties. Due to climate change, Pennsylvania growers have expressed their interests in growing heat tolerant potato varieties. We evaluated 6 potato breeding clones in 2018 and 5 clones in 2019 for heat tolerance and other agronomic traits in Pennsylvania. All these clones were collected from North Carolina State University and have potential of heat tolerance. We are in the process of evaluation of 2019 trial. Based on two years' evaluations, we will select clones with heat tolerance and good agronomic qualities and introduce them to Pennsylvania growers in 2020. We also plan to collect and evaluate some new clones form NCSU for heat tolerance in Pennsylvania in 2020. We plan to collect and evaluate new potato varieties and potato breeding clones from potato breeding programs in the northeastern US for resistance to late blight, early blight and common scab in 2020 in Pennsylvania. The data will be used for new variety release. We had late blight and early blight fungicide trials in 2019 and we are analyzing the data. If any treatments have good control of the diseases, we will re-evaluate some of them again in 2020. We will also contact companies such as BASF, FMC, Syngenta, etc., to see if they have new chemical products for the control of potato diseases. If the companies have new products, we will evaluate them in Pennsylvania in 2020. We had 2-4D trial for control of common scab in 2019 and we are in the process of data collection. If 2,4D works, we will conduct field trial to determine the optimum chemical rate and timing of spraying for common scab control in 2020.
Impacts
What was accomplished under these goals?
Goal 1: The best varieties of 5 red-skinned and 5 white for fresh market and 4 processing varieties were selected and introduced to Pennsylvania growers based on our variety evaluation trials of about 170 potato varieties/breeding clones in 2018 on agricultural research fields at the Russell E. Larson Agricultural Research Center in Rock Springs and on two potato growers' farms. In 2019, we obtained 187 potato varieties/breeding clones from breeding programs in the US including USDA, University of Maine, Cornell University, Colorado State University, University of Wisconsin, Idaho and Michigan State University. These varieties/clones include white-skinned, red/purple-skinned and russet-skinned potatoes. Some of these varieties were evaluated in 2018 and some are new varieties. These varieties/breeding clones were planted on agricultural research fields at the Penn State Russell E. Larson Agricultural Research Center and on two potato growers' farms. The trials were harvested in October and we are assessing yield, tuber size and shape, internal and external defects, skin color, texture, specific gravity, overall appearance, and French fry, chip, and culinary qualities. High quality potato varieties and breeding clones for processing, fresh market, and specialty uses will be selected and introduced to Pennsylvania growers and industry. Pennsylvania growers and industry have expressed their interests in growing russet potatoes in Pennsylvania. Most russet potato varieties were developed from breeding programs in northwestern states such as Idaho. However, Pennsylvania's environmental conditions, soil conditions and cultural practices are different from that of the northwestern states and therefore it has been difficult to grow high quality russet potatoes in Pennsylvania. For example, the top one russet variety "Russet Burbank" in the US has ugly shape and appearance under Pennsylvania conditions. Another popular russet variety "Russet Norkotah" in the US has low yield in Pennsylvania. We selected 30 russet potato varieties/breeding clones with good/fair qualities of shape, appearance, yield, size and French Frying based on our evaluation trials of about 70 russet potato varieties in three locations in Pennsylvania in 2018. We planted these 30 russet potato varieties in 2019 field trials in three locations in Pennsylvania. All three trials were harvested in October and we are in the process of evaluation. We expect to identify 2 to 3 russet potato varieties with good qualities for Pennsylvania growers. Pennsylvania growers have expressed their interests in early season and creamy varieties. We evaluated 30 early season/creamy varieties in 2018, selected the best 4 varieties with early maturity, good appearance, high yield and yellow flesh and introduced them to Pennsylvania growers. In 2019, we had an early season/creamy variety trial with 22 varieties including few varieties evaluated in 2018 and a few new varieties at the Russell E. Larson Agricultural Research Center at Rock Springs. The trial was harvested in October and we are in the process of tuber evaluation. Early season is a rapidly growing segment of specialty fresh market potato production. Goal 2: We have several disease trials to select disease resistant potato varieties and breeding clones. A few late blight-resistant potato varieties and advanced breeding clones such as Kennebec, AF5412-3, AF5414-1, AF4648-2, AF5450-7, NY152, AF5429-3 and AF5225 were selected among 565 varieties and advanced breeding clones evaluated in 2018. A few early blight-resistant potato varieties and advanced breeding clones such as AF5225-1, Katahdin, AF4648-2, BNC364-1, NY151, NY162, Snowden and NY149 were selected among 370 varieties and advanced breeding clones evaluated in 2018. A few common scab-resistant potato varieties and advanced breeding clones such as Russet Norkotah, AF5312-1, WAF10073-3Rus, AF5414-1, Russet Burbank and Reveille Russet were selected among 275 varieties and advanced breeding clones evaluated in 2018. In 2019, 288 varieties and advanced breeding clones were evaluated for early blight resistance, 407 varieties and advanced breeding clones for late blight resistance, and 286 varieties and advanced breeding clones for common scab resistance at Rock Springs. We are in the process of data analyses to select resistant varieties/breeding clones. We had a potato late blight fungicide trial with 12 treatments and an early blight fungicide trial with 18 treatments conducted at Rock Springs in 2018. All treatments significantly reduced foliar late blight/early blight and significantly increased tuber yield compared to the untreated controls. In 2019, a potato late blight fungicide trial with 4 treatments and an early blight fungicide trial with 11 treatments were conducted at Rock Springs. Some of these treatments were evaluated in 2018 and some are new treatments. Foliar disease severity was scored during grower season. Both trials were harvested in October and we are in the process of evaluation of tuber yield and disease. A potato field trial to control potato common scab with 2,4D was conducted at Rock Springs in 2019 and we are in the process of scoring tuber common scab severity. The data of all these disease management trials will be used to release new chemical products for control of potato diseases in cooperation with industry. The data are also shared with Pennsylvania growers. Goal 3: In 2019, we evaluated 33 advanced breeding clones collected from potato breeding programs in the Eastern US at the Penn State Russell E. Larson Agricultural Research Center at Rock Springs. The trials were harvested in October. All tubers are being evaluated for yield, size distribution, internal and external defects, and processing and culinary characteristics. The data of evaluations will be used for new potato variety releasing in cooperation with potato breeding programs in the Eastern US. Goal 4: In 2019, we have potato variety demonstration trials of 30 varieties at Rock Springs which was shown to visitors during 2019 Ag progress Days, and in Lehigh Co. and Erie Co. which were shown to potato growers during 2019 Potato Field Days in each county. These varieties were selected based on the data of our 2018 variety evaluations.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Qu XS, Xue WY, Peck MW. 2019. Field evaluation of potato cultivars and breeding lines for resistance to common scab in Pennsylvania, 2018. Plant Disease Management Reports 13: V061.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Qu XS, Xue WY, Peck MW. 2019. Field evaluation of potato cultivars and breeding lines for resistance to late blight in Pennsylvania, 2018. Plant Disease Management Reports 13: V046.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Qu XS, Xue WY, Peck MW. 2019. Field evaluation of potato cultivars and breeding lines for resistance to early blight in Pennsylvania, 2018. Plant Disease Management Reports 13: V075.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Qu XS, Peck MW, Xue WY. 2019. Evaluation of fungicides for control of potato early blight in Pennsylvania, 2018. Plant Disease Management Reports 13: V005.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Qu XS, Peck MW, Xue WY. 2019. Evaluation of foliar fungicides for control of potato late blight in Pennsylvania, 2018. Plant Disease Management Reports 13: V006.
- Type:
Websites
Status:
Published
Year Published:
2019
Citation:
Qu XS, Peck MW. 2019. Pennsylvania Potato Research Report 2018. 58 pp
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Haynes KG, Qu XS. 2019. Three cycles of recurrent maternal half-sib selection continue to reduce foliar late blight in a diploid hybrid Solanum phureja-S. stenotomum population. American Journal of Potato Research 96: 1-5.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Xue WY, Haynes KG, Qu XS. 2019. Characterization of early blight resistance in potato cultivars. Plant Disease 103: 629-637.
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Progress 10/01/17 to 09/30/18
Outputs
Target Audience:The target audience includes: potato growers; potato production and processing industry such as Utz Quality Foods, Inc., Keystone Products, Pennsylvania Co-operative Potato Growers, Inc., etc.; university agricultural extension persons; potato breeding collaborators and potato researchers; companies such as Syngenta, FMC, Gowan, Simplot, Parkland Seed Potatoes, Sunrain, Solanum International, Hanse Seed, HZPC, etc. Changes/Problems:As consumers seek more "locally grown" food, Pennsylvania is in an ideal position to take advantage of its farmland, processing plants, and close proximity to markets to meet demand for this yet untapped market. However, Pennsylvania has diverse environmental conditions. We recognize that identifying a good potato variety needs multi-site and multi-year evaluations. Selecting varieties, procurement of seed, and logistics of planting trials at various locations across Pennsylvania require considerable planning and flexibility to respond to changing weather, field conditions and planting and harvesting windows to conform with regional potato production practices. We will put more varieties/advanced breeding clones in evaluation trials at grower's farms at various locations and hope to identify more locally adapted potato varieties. What opportunities for training and professional development has the project provided?Presentations on education on potato varieties and production were given to Pennsylvania potato growers and industry at Lehigh Twilight Potato Field Meeting in September 2018 and Erie Potato Test Plot Day in September 2018. How have the results been disseminated to communities of interest?The results of our potato germplasm and disease evaluations were presented to potato growers, researchers and industry at Northeast Regional NE1231 Potato Meeting 2018, Mid-Atlantic Fruit and Vegetable Convention 2018, PA Potato Research Program Board Meeting 2018, Potato Association of America Annual Meeting 2018, Lehigh Twilight Potato Meeting 2018 and Erie County Potato Meeting 2018. We visited grower's farms to have direct communications with growers during 2018 growing season. We had potato demonstrations in three counties to show best potato varieties to growers and industry during AG Progress Days and Potato Field Days in 2018. The results of 2018 trials of germplasm and disease evaluations will be summarized in a book entitled "Pennsylvania Potato Research Report, 2018" and the book will be distributed to Eastern potato growers, researchers and industries. What do you plan to do during the next reporting period to accomplish the goals?We will continue our effort to develop new potato varieties in cooperation with other potato breeding programs in the Eastern US. Pennsylvania potato growers and industry have expressed their interests in some advanced breeding clones such as NY150 for fresh market use and NY152 for chipping from these breeding programs based on the data of our previous evaluations. We plan to focus on these advanced breeding clones and will communicate with breeders for potential releasing of these clones as new varieties for Pennsylvania use. We will continue our potato germplasm evaluation trials at various locations in Pennsylvania in cooperation Pennsylvania potato growers and industry and identify new varieties/breeding lines that have adaptation to eastern potato growing regions and have qualities that are suitable for either processing or table stock use. Pennsylvania potato growers and industry have expressed their interests in more colored potatoes. We plan to include more russet, colored-skin and colored-flesh clones such as red, purple and yellow fleshed potatoes in our trials. We will continue our disease management trials for the control of potato diseases. Late blight with new pathogen genotype has occurred in the US including Pennsylvania in recent years. Early blight has occurred with increasing frequency in Pennsylvania in recent years. We plan to evaluate some new chemicals for the control of late and early blight. Pennsylvania growers has complained about common scab. We will continue variety screening for resistance to common scab. We plan to add new trial for chemical control of common scab. We have selected a few potato varieties with good qualities for tables tock, French fry and chipping for Pennsylvania growers and industry from our previous years' evaluations. We plan to have more communications with growers to introduce these varieties.
Impacts
What was accomplished under these goals?
We cooperate with potato breeding programs in the Eastern US to develop attractive, productive, disease- and insect-resistant potato varieties that can be employed by small and large potato producers to enhance marketing opportunities, farm sustainability and profits. In 2018, we evaluated 40 advanced breeding clones collected from potato breeding programs in the Eastern US for yield, size distribution, internal and external defects, and processing and culinary characteristics at the Russell E. Larson Agricultural Research Center at Rock Springs. The data will be used for new variety releasing. We evaluate and select new potato varieties that have adaptation to Pennsylvania potato growing regions and have qualities that are suitable for either processing or tablestock use. In 2018, we obtained and evaluated about 170 potato varieties/breeding clones on agricultural research fields at the Russell E. Larson Agricultural Research Center in Rock Springs and on two potato growers' farms. These varieties/clones include white-skinned, red/purple-skinned, and russet-skinned cultivars from different breeding programs including USDA, University of Maine, Cornell University, Colorado State University, University of Wisconsin, Idaho, Michigan State University, and Canada. These varieties were evaluated for yield, processing, and culinary characteristics in three locations in Pennsylvania. The trials were harvested in October and we are assessing yield, tuber size and shape, internal and external defects, skin color, texture, specific gravity, overall appearance, and French fry, chip, and culinary qualities. High quality potato varieties and breeding clones for processing, fresh market, and specialty uses will be selected and introduced to Pennsylvania growers and industry. Pennsylvania growers have expressed their interests in early season and creamy varieties. In 2018, we had an early season/creamy variety trial with about 30 varieties at the Russell E. Larson Agricultural Research Center in Rock Springs. The trial was harvested in October and we are in the process of tuber evaluation. Early season is a rapidly growing segment of specialty fresh market potato production. Pennsylvania growers and industry have expressed their interests in growing russet potatoes in Pennsylvania. In 2018, we obtained about 70 russet potato varieties from all US and Canada potato breeding programs and evaluated them in three locations in Pennsylvania. All three trials were harvested in October and we are in the process of evaluation. We expect to identify 2 to 3 russet potato varieties with good qualities for Pennsylvania growers. Pennsylvania growers have expressed their interests in growing heat tolerance potato varieties. In 2018, we obtained 6 potato breeding clones from a potato breeding program at North Carolina State University. We are evaluating them for heat tolerance and other agronomic traits at the Russell E. Larson Agricultural Research Center in Rock Springs. In 2018, we had a demonstration of potato varieties at Rock Springs which was shown to visitors at Agricultural Progressive Day. We had demonstration trials with about 20 varieties in Lehigh Co. and Erie Co. which were shown to potato growers during Potato Field Days. Growers have the opportunity to look at the new potato varieties and share their thoughts and concerns. We had several disease trials to select disease resistant potato varieties and breeding clones in 2018. 370 varieties and advanced breeding lines were evaluated in Rock Springs for early blight resistance and resistant clones were identified. 565 varieties and advanced breeding lines were evaluated in Rock Springs for late blight resistance and resistant clones were identified. 275 varieties and advanced breeding lines were evaluated in Rock Springs for common scab resistance and resistant clones were identified. We had two other disease management trials in 2018. A potato late blight fungicide trial with 12 treatments was conducted at Rock Springs. A potato early blight fungicide trial with 18 treatments was conducted at Rock Springs.
Publications
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
Qu XS, Peck MW, Moore CE, Christ BJ. 2018. Evaluation of fungicides for control of potato early blight in Pennsylvania, 2017. Plant Disease Management Reports 12: V019.
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
Qu XS, Peck MW, Moore CE, Christ BJ. 2018. Field evaluation of potato cultivars and breeding lines for resistance to powdery scab in Pennsylvania, 2017. Plant Disease Management Reports 12: V017.
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
Qu XS, Peck MW, Moore CE, Christ BJ. 2018. Field evaluation of potato cultivars and breeding lines for resistance to late blight in Pennsylvania, 2017. Plant Disease Management Reports 12: V020.
- Type:
Other
Status:
Published
Year Published:
2018
Citation:
Qu XS, Peck MW, Moore CE, Christ BJ. 2018. Field evaluation of potato cultivars and breeding lines for resistance to early blight in Pennsylvania, 2017. Plant Disease Management Reports 12: V018.
- Type:
Journal Articles
Status:
Awaiting Publication
Year Published:
2018
Citation:
Haynes, KG, Qu XS. 2018. Three cycles of recurrent maternal half-sib Selection continue to reduce foliar late blight in a diploid hybrid Solanum phureja-S. stenotomum population. American Journal of Potato Research 95
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