Source: TEXAS A&M UNIVERSITY submitted to NRP
NURSERY AND GREENHOUSE PRODUCTION OF ORNAMENTALS WITH EMPHASIS ON ROSES AND BEDDING PLANTS
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
COMPLETE
Funding Source
HATCH
Reporting Frequency
Annual
Accession No.
1002231
Grant No.
(N/A)
Cumulative Award Amt.
(N/A)
Proposal No.
(N/A)
Multistate No.
(N/A)
Project Start Date
Dec 11, 2013
Project End Date
Dec 10, 2018
Grant Year
(N/A)
Program Code
[(N/A)]- (N/A)
Recipient Organization
TEXAS A&M UNIVERSITY
750 AGRONOMY RD STE 2701
COLLEGE STATION,TX 77843-0001
Performing Department
Overton-TAMU Agr Res Cntr
Non Technical Summary
The rose industry of northeast Texas occurs within a 50-mile radius of Tyler. Several million rose plants are produced in Smith, Van Zandt and Cherokee Counties each growing season (Pemberton, 1992). In all, close to 20 million plants are sold after value added processing with an approximate wholesale value of $50 million. Rose producers must have reliable recommendations based on valid research data for such labor intensive and costly operations as disease and weed control, propagation, irrigation, and fertilization techniques. Cultural recommendations should be developed for field production of own-root rose plants, an increasing method of plant production, and for forcing field grown plants in containers. One of the largest impacts on the marketing of rose plants worldwide would be the development of disease resistant varieties for garden use. A major breeding effort is based in College Station and cooperative field trials are needed for evaluating both commercially available germplasm and newly created progeny for field disease resistance.The floriculture industry in northeast Texas is valued at close to $100 million and is centered in Cherokee county. The largest crops are the various species of flowering bedding plants such as impatiens, pansies, petunias, begonias, and vinca. Most major trials of new plant introductions have been traditionally located in other regions of the country. Improvements in the selection of varieties and production methods adapted to local production and gardening conditions are needed. Research is needed to develop methods for height control and environmental manipulation. In addition to bedding plants, many flowering crops are grown such as poinsettias, chrysanthemums, and Easter Lilies, and even cut flowers. For expansion of production for these crops and others that continually emerge onto the market, research is needed to determine which crops can be grown successfully and to generate cultural and marketing recommendations. In addition, the northeast Texas area can be some distance from potential markets. Research on post-production requirements is needed for floricultural crops so that shipping and handling procedures can be optimized. Conserving and reducing the amount of water used for landscape irrigation continues to be a major issue for municipalities throughout Texas and the nation. Landscape irrigation increases dramatically during summer months and contributes substantially to peak demand placed on municipal water supplies. A survey of monthly water use indicated that average peak water consumption increased as much as 3.3 fold during the summer compared to the non-peak months of December, January, and February. Although conservation education programs typically suggest ways to reduce indoor and outdoor water use, information that can provide homeowners and commercial landscape managers with a realistic estimate of the amount of water required to sustain their landscape at an acceptable quality is lacking.
Animal Health Component
80%
Research Effort Categories
Basic
10%
Applied
80%
Developmental
10%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2022110108010%
2022123108020%
2032199106015%
2042110105015%
2042123105015%
2122110106010%
5122123310015%
Knowledge Area
212 - Pathogens and Nematodes Affecting Plants; 204 - Plant Product Quality and Utility (Preharvest); 203 - Plant Biological Efficiency and Abiotic Stresses Affecting Plants; 202 - Plant Genetic Resources; 512 - Quality Maintenance in Storing and Marketing Non-Food Products;

Subject Of Investigation
2110 - Ornamental trees and shrubs; 2199 - Ornamentals and turf, general/other; 2123 - Bedding/garden plants;

Field Of Science
1060 - Biology (whole systems); 1080 - Genetics; 1050 - Developmental biology; 3100 - Management;
Goals / Objectives
OBJECTIVES:1. Optimize plant selection techniques for disease resistance and improve cultural practices including irrigation, propagation, fertilization, disease control, and post-production care for growth and marketability of nursery crops including field and container grown rose plants.2. Determine adapted varieties and cultural procedures for the production and post-production care of new and traditional bedding plant and other flowering crops for the northeast Texas area and study the marketability of these crops.3. Determine an appropriate landscape coefficient (Lc) that can be used in combination with potential evapotranspiration (PET) data to improve irrigation scheduling for residential and commercial landscapes.
Project Methods
Objective 1Field resistance trials of rose germplasm will continue. Leaf material will be selected seasonally from resistant and susceptible landscape roses and controlled cross progeny and challenged with the blackspot fungus (Drewes-Alvarez, 1992). The progression of the disease in leaves of cultivars with differing disease tolerance levels will be studied using light microscopy. Efforts will be made to study a putative hypersensitive response (Conti et al., 1985; Wiggers et al., 1997). The fungus will be grown in culture so that effects of leaf extracts from resistant and susceptible types on fungal growth can be evaluated (Drewes-Alvarez, 1992; Walker et al., 1996). In addition, single spore isolations will be made to define races of the fungus for genetic studies (Drewes-Alvarez, 1992).Efforts will be made to determine the optimum digging dates and cold storage requirements for container forcing of bare-root field grown rose plants (Pemberton and Schuch, 2004). Growth chambers and cold storage units can be used to elucidate chilling requirements for commonly grown cultivars.Studies concerning the development of cold hardiness in rose shoots will continue. Cold hardiness levels will be assessed and correlated to visual maturity development and starch and sugar levels as these factors change in response to environmental changes in temperature and photoperiod (Ali, 1992; McBee et al., 1983; Smith, 1969).The effects of N, P, K, and lime will continue to be evaluated in field and nursery container experiments. Soil or media and leaf samples will be analyzed and used to monitor plant nutrient status in reference to published standards for optimum growth (Assoc. of Off. Ag. Chemists, 1955; Sadasivaiah and Holley, 1971). In addition, the Virginia Tech Extraction Method will be used to monitor media nutrient levels in container experiments (Wright and Niemiera, 1987).Objective 2Bedding plant greenhouse and garden evaluations will continue (Pemberton and Roberson, 2001). Web page development will continue as the primary method of information dispersal to producers and consumers in addition to Field Days and presentations at industry events (http://overton.tamu.edu/flowers/ ). Participation in the statewide Texas Superstar® trials will also continue. In addition, bedding plant cultivars will be evaluated for the need for growth regulation during greenhouse production under northeast Texas conditions. Height control programs will be developed employing the use of growth regulating chemicals and light manipulation to control growth both in the plug and the pack/pot finishing stage (Bae et al., 1994). Also, the effects of high temperatures on flowering in poinsettia will be studied.New flowering crops will be grown to determine the feasibility of production in northeast Texas. Crops will be grown in greenhouse and field plots to evaluate cultural procedures such as height control, environmental manipulation, spacing, shading, support, weed control, fertilization, and watering.Postproduction characteristics of traditional and new floricultural crops will be studied to determine how shelf-life can be prolonged. In addition, efforts will be made to correlate postproduction longevity to garden performance.Plants will be grown so that product combination images can be recorded for consumer preference studies. Conjoint analysis will be used to provide insight to the relative importance of product attributes such as flower Consumer preference studies do not involve Human Subjects at this time, but may be involved in the future.Objective 3 A model landscape will be installed that will include trees, shrubs, turf and annual The landscape will be approximately 2000 square feet and will include at least one large tree, turf, and beds with shrubs and annual Approximately 96 moisture sensors will be placed in the landscape using a grid pattern with some sensors being strategically placed to monitor a specific plant type or species. Each sensor measures moisture levels over an 8 inch span. They will be placed 10 to 15 feet apart and positioned to measure moisture loss at depths of 0 to 8 inches, 8 to 16 inches, and 16 to 24 inches at each point on the grid. Data will be collected from soil moisture sensors every 30 minutes. Soil moisture loss (inches) will be calculated as the difference in volumetric water content at the same predetermined time on successive days. Actual evapotranspiration (ETa) will be determined by adding soil water loss from each of the three depths for each sensor location. Potential evapotranspiration (PET) will be estimated by the Penman-Monteith equation and meterological data from a Texas ET Network (http://texaset.tamu.edu) weather station located near the site. Crop coefficients (Kc) and Landscape coefficients (Lc) can then be estimated from the daily average ratios of ETa:PET. Efforts will also be made to quantify water use of individual ornamental species.ReferencesAli, A.I.M. 1992. Acclimation and deacclimation of Rosa multiflora Thunb. 'Burr' plants to cold temperature. Ph.D. Dissertation, Texas A&M University, College Station, TX.Association of Official Agricultural Chemists. 1955. Official methods of analysis. 8th Ed. Washington, D. C.Bae, E. J., K. Inamoto, M. Doi, and H. Imanishi. 1994. Improving the quality of plug seedlings by ultraviolet-B irradiation. XXIV International Horticultural Congress. Program and Abstracts Supplement:21.Conti, G. G., M. Bassi, D. Maffi, and R. Bonecchi. 1985. Host-parasite relationship in a susceptible and a resistant rose cultivar inoculated with Sphaerotheca pannosa I. Fungal growth, mechanical barriers, and hypersensitive reaction. Phytopath. Z. 113:71-80.Drewes-Alvarez, Renee. 1992. Untersuchungen am pathosystem sternrusstau (Marronina rosae died.) - rose (Rosa L.) zur klarung der frage nach pilzlichen rassen und zur ubertragung der resistenz aus der diploiden Rosa multiflora Thunb. auf tetraploide gartenrose. Ph.D. Dissertation, University of Hamburg.Gaasbeek, A. F. and V. C. Bouwman. 1991. Conjoint analysis in market research for horticultural products. Acta Hort. 295:121-125.McBee, G. G. and N. O. Maness. 1983. Determination of sucrose glucose and fructose in plant tissue by high performance liquid chromatography. J. of Chromatography. In Press.Pemberton, H. B. and W. E. Roberson. 2001. The east Texas bedding plant pack and garden performance trials. HortTechnology 11:392-396.Pemberton, H. B. and U. K. Schuch. 2004. Flowering of containerized field-grown garden roses is affected by dig date, chill hours, and forcing location. HortScience 39:819 (Abstr.).Sadasivaiah, S. P. and W. D. Holley. 1971. Ion balance in rose nutrition. Roses Inc. Bull. Sept. 3, 1971.Smith, D. 1969. Removing and analyzing total nonstructural carbohydrates from plant tissue. Wisconsin Agric. Expt. Stat. Res. Rept. 41.Walker, S., Z. Mandegaran, and A. V. Roberts. 1996. Screening roses for resistance to Diplocarpon rosae. Acta Horticulturae 424:209-214.Wiggers, R. J., J. G. West, and J. Taylor. 1997. Conidial germination and infection by Diplocarpon rosae on susceptible and resistant rose species. Mycologia 89:103-108.Wright, R. D. and Alexander X. Niemiera. 1987. Nutrition of container-grown woody nursery crops. In: Horticultural Reviews Vol. 9, pp. 75-101.

Progress 12/11/13 to 12/10/18

Outputs
Target Audience:Producers and consumers of ornamental plants. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Participated in the California Spring Trials event in April 2018 in several cities in California. Participated in the annual meeting of the Advisory Board for the National Clean Plant Network Roses in June 2018 in Los Angeles, California. Participated in an academic visit to Gansu Academy of Agricultural Sciences in August 2018 in Lanzhou, China. Participated in the annual meeting of the American Society for Horticultural Science in August 2018 in Washington, D.C. Participated in a Project Review for the USDA Specialty Crop funded project Combating Rose Rosette in October 2018 in Crossville, Tennessee. Served on the National Strategic Planning Board and the Extension and Outreach Committee for the National Clean Plant Network. How have the results been disseminated to communities of interest?This project has produced results and information which can potentially improve plant disease resistance, decrease pesticide applications, increase the economic viability of ornamental horticulture enterprises, improve knowledge of ornamental crop production management and improve plant selection for better landscape performance. This information has been disseminated via field days, presentations at public and professional events, and publications. What do you plan to do during the next reporting period to accomplish the goals?Continue ornamental trials, etc.

Impacts
What was accomplished under these goals? The East Texas Ornamental Plant Evaluations were continued with several hundred entries being tested for greenhouse and field performance. Research trials were conducted during the spring and fall seasons. Container trials were included. Outstanding entries to the summer trials were designated. Results are maintained on a website at http://flowers.tamu.edu/ for industry and consumer clientele. Research trials and marketing promotions were conducted for plants designated as Texas Superstar® plants. These plant designations are available at www.texassuperstar.com . The Texas Superstar® brochure was used for educational programming. Availability was promoted through participation in programs and trade shows and through publications. Studies were continued to determine the effects of high temperatures on flowering in poinsettia using a large group of cultivars and breeding lines. The effect of duration of a high temperature period during floral development was studied using several cultivars. This information is important for producers in latitudes that can experience high temperature delay during the usual time for poinsettia crop production. Work funded by a research grant from the Specialty Crops Research Initiative as part of a national team to study rose rosette disease in ornamental roses was continued. Disease incidence and flowering characteristic data were gathered on several hundred roses in field plantings that was replicated at other sites by other research team members. Plantings for field phenotyping include commercial cultivars, recent introductions, and breeding populations created by team members.

Publications

  • Type: Journal Articles Status: Published Year Published: 2018 Citation: Pemberton, B., K. Ong, M. Windham, J. Olson, and D. Byrne. 2018. What is rose rosette disease? HortScience 53(5):592-595. https://doi.org/10.21273/HORTSCI12550-17
  • Type: Journal Articles Status: Published Year Published: 2018 Citation: Sun, Y., G. Niu, C. Perez, H.B. Pemberton, and J. Altland. 2018. Responses of marigold cultivars to saline water irrigation. HortTechnology 28(2):166-171.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Sun, Y., G. Niu, H.B. Pemberton. 2017. Relative salt tolerance of marigold cultivars. HortScience 52(9):S303 (Poster Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Kang, S., E.L. Young, J. Lau, B. Pemberton, C. Bishop, P. Klein, and D.H. Byrne. 2018. Evaluation of Cercospora leaf spot severity on garden roses in Texas. Conference Program America Society for Horticultural Science p. 59-60 (Oral Abstr.)
  • Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Pemberton, B., E.L. Young, J. Lau, S. Kang, D. Zlesak, C. Bishop, N. Anderson, and D.H. Byrne. 2018. Evaluation of garden rose species, cultivars, and breeding populations for disease resistance and landscape performance in Texas. Conference Program America Society for Horticultural Science p. 191. (Poster abstr.)
  • Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Pemberton, B., Y. Chen, J.W. Stagg, D. Zhang, and J. McDonald. 2018. The changing world of tea production  the potential impact of a scientific exchange in China on the US tea production industry. Conference Program America Society for Horticultural Science p. 240. (Poster abstr.)
  • Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Pemberton, B., R. Kobayashi, C. Bishop, and W. Roberson. 2018. Reversal of high temperature induced flowering delay in poinsettia with photoperiod. Conference Program America Society for Horticultural Science p. 241-242. (Poster abstr.)
  • Type: Conference Papers and Presentations Status: Published Year Published: 2018 Citation: Zhang, D., Y. Chen, B. Pemberton, J. Stagg, and J. McDonald. 2018. Growing Tea as a cash crop in the southeastern US. Conference Program America Society for Horticultural Science p. 240. (Poster abstr.)
  • Type: Other Status: Published Year Published: 2017 Citation: Wright, J. 2018 (14 January). 2017 Texas A&M University (Overton, Texas) field trials results. Greenhouse Grower. http://www.greenhousegrower.com/varieties/2017-texas-am-university-field-trial-results/ . Written about faculty member research.
  • Type: Other Status: Published Year Published: 2018 Citation: Russell, A. 2018 (June 6). Horticulture Field Day in Overton June 28 to feature hundreds of ornamental varieties. https://today.agrilife.org/2018/06/06/horticulture-field-day-in-overton-june-28-to-feature-hundreds-of-ornamental-varieties/. Written about faculty member research.


Progress 10/01/16 to 09/30/17

Outputs
Target Audience:Producers and consumers of ornamental plants. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?Participated in the California Spring Trials event in April 2017 in several cities in California. Participated in the annual meeting of the American Society for Horticultural Science in September 2017 in Kona, Hawaii. Participated in the Texas Nursery and Landscape Association Expo trade show in August 2017 in Dallas, Texas. Participated in the annual meeting of the Advisory Board for the National Clean Plant Network Roses in August 2017 in Kennett Square, Pennsylvania. Served on the National Strategic Planning Board for the National Clean Plant Network. How have the results been disseminated to communities of interest?This project has produced results and information which can potentially improve plant disease resistance, decrease pesticide applications, increase the economic viability of ornamental horticulture enterprises, improve knowledge of ornamental crop production management and improve plant selection for better landscape performance. This information has been disseminated via field days, presentations at public and professional events, and publications. What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? The East Texas Ornamental Plant Evaluations were continued with several hundred entries being tested for greenhouse and field performance. Research trials were conducted during the spring and fall seasons. Container trials were included. Outstanding entries to the summer trials were designated. Results are maintained on a website at http://flowers.tamu.edu/ for industry and consumer clientele. Research trials and marketing promotions were conducted for plants designated as Texas Superstar® plants. These plant designations are available at www.texassuperstar.com . The Texas Superstar® brochure was used for educational programming. Availability was promoted through participation in programs and trade shows and through publications. Studies were continued to determine the effects of high temperatures on flowering in poinsettia using a large group of cultivars and breeding lines. The effect of duration of a high temperature period during floral development was studied using several cultivars. This information is important for producers in latitudes that can experience high temperature delay during the usual time for poinsettia crop production. Work funded by a research grant from the Specialty Crops Research Initiative as part of a national team to study rose rosette disease in ornamental roses was continued. Disease incidence and flowering characteristic data were gathered on several hundred roses in a field planting that was replicated at other sites by other research team members.

Publications

  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Pemberton, H.B., E. Roundey, J. Lau, C. Bishop, N. Anderson, and D.H. Byrne. 2017. Field evaluation of species and modern garden roses for black spot and landscape performance in Texas. VII International Symposium on Rose Research and Cultivation Abstract Book p. 27.
  • Type: Journal Articles Status: Published Year Published: 2017 Citation: Meyer, M.H., B. Fair, J.E. Klett, K. Moore, H.B. Pemberton, L. Perry, J. Rozum, A. Shay, and M.D. Taylor. 2017. Switchgrass and little bluestem cultivars show performance variation across eight states in national grass trials. HortTechnology 27:731-738.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Greyvenstein, O., T. Starman, B. Pemberton, G. Niu, and D.H. Byrne 2017 Heat tolerance in garden roses. VII International Symposium on Rose Research and Cultivation Abstract Book p. 93.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Byrne, D.H., H.B. Pemberton, D.J. Holeman, T. Debener, T.M. Waliczek, and M. Palma. 2017. Survey of the rose community: desired rose traits and research issues. VII International Symposium on Rose Research and Cultivation Abstract Book p. 102.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Byrne, D., M. Windham, F. Ochoa-Corona, J. Olson, M. Paret, B. Babu, G. Knox, R. Jordan, J. Hammond, K. Ong, R. Ochoa, G. Bauchan, T. Evans, P. Klein, A. Windham, F. Hale, C. Hall, L. Ribera, M. Palma, and H.B. Pemberton. 2017. Combating rose rosette disease US national project. VII International Symposium on Rose Research and Cultivation Abstract Book p. 107
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Kang, S. , M. Yan, E. Roundey, J. Lau, B. Pemberton, C. Bishop, K. Ong, and D. Byrne. 2017. Resistance of garden roses to Cercospora leaf spot. VII International Symposium on Rose Research and Cultivation Abstract Book p. 109.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Pemberton, H.B., D. Byrne, D. Golino, N. Anderson, S. Sim, and K. Ong. 2017. National Clean Plant Network for Roses. VII International Symposium on Rose Research and Cultivation Abstract Book p. 121.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2017 Citation: Pemberton, H.B., D.H. Byrne, W.R. Roberson, and A. Black. 2017. Categorization of garden roses for field growth response to black spot disease. VII International Symposium on Rose Research and Cultivation Abstract Book p. 122.
  • Type: Other Status: Published Year Published: 2017 Citation: Wright, J. 2017 (10 February). 2017 TexasA&M University (Overton, Texas) field trials results. Greenhouse Grower. http://www.greenhousegrower.com/varieties/variety-trials/2016-texas-am-university-field-trials-results/ . Written about faculty member research.
  • Type: Other Status: Published Year Published: 2017 Citation: Russell, A. 2017 (May 17). East Texas Horticulture Field Day in Overton June 29 to feature hundreds of ornamental varieties. https://today.agrilife.org/2017/05/17/east-texas-horticultural-field-day-overton-june-29-feature-hundreds-ornamental-varieties/ . Written about faculty member research.


Progress 10/01/15 to 09/30/16

Outputs
Target Audience:Producers and consumers of ornamental plants. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?Participated in the California Spring Trials event in April 2016 in several cities in California. Toured the research trial gardens at Ball Horticulture in September 2016 in West Chicago, Illinois. Participated in the annual meeting of the American Society for Horticultural Science in August 2016 in Atlanta, Georgia. Participated in the Texas Nursery and Landscape Association Expo trade show in August 2016 in Houston, Texas. Participated in the annual meeting of the Advisory Board for the National Clean Plant Network Roses in June 2016 in Shreveport, Louisiana. How have the results been disseminated to communities of interest?This project has produced results and information which can potentially improve plant disease resistance, decrease pesticide applications, increase the economic viability of ornamental horticulture enterprises, improve knowledge of ornamental crop production management and improve plant selection for better landscape performance. This information has been disseminated via field days, presentations at public and professional events, and publications. What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? The East Texas Ornamental Plant Evaluations were continued with several hundred entries being tested for greenhouse and field performance. Research trials were conducted during the spring and fall seasons. Container trials were included. Outstanding entries to the summer trials were designated. Results are maintained on a website at http://flowers.tamu.edu/ for industry and consumer clientele. Research trials and marketing promotions were conducted for plants designated as Texas Superstar® plants. These plant designations are available at www.texassuperstar.com . The Texas Superstar® brochure was updated and reprinted to be used for educational programming. Availability was promoted through participation in programs and trade shows and through publications. Studies were continued to determine the effects of high temperatures on flowering in poinsettia using a large group of cultivars and breeding lines. The effect of duration of a high temperature period during floral development was studied using several cultivars. This information is important for producers in latitudes that can experience high temperature delay during the usual time for poinsettia crop production. Work funded by a research grant from the Specialty Crops Research Initiative as part of a national team to study rose rosette disease in ornamental roses was continued. Disease incidence and flowering characteristic data were gathered on several hundred roses in a field planting that was replicated at other sites by other research team members.

Publications

  • Type: Journal Articles Status: Published Year Published: 2015 Citation: Greyvenstein, O., T. Starman, D. Byrne, H.B. Pemberton, and G. Niu. 2015. Development of a rapid screening method for selection against high temperature susceptibility in garden roses. HortScience 50(12):1757-1764.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2016 Citation: Pemberton, B., K. Ong, M. Windham, J. Olson, and D. Byrne. 2016. What is rose rosette disease? HortScience 51(9):S68 (Oral Abstr.).
  • Type: Other Status: Published Year Published: 2015 Citation: Wright, J. 2015 (25 November). 2015 TexasA&M University (Overton, Texas) field trials results. Greenhouse Grower. http://www.greenhousegrower.com/varieties/2015-texas-am-university-overton-texas-field-trials-results/ . Written about faculty member research.
  • Type: Other Status: Published Year Published: 2016 Citation: Miller, C. 2016 (January 18). Plants that can survive hot climates. Greenhouse Grower. http://www.greenhousegrower.com/retailing/plants-that-can-survive-hot-climates/?utm_source=knowledgemarketing&utm_medium=newsletter&utm_campaign=retailing+01192016&omhide=true&eid=224607471&bid=1283529#/BlackoutGallery/126561/9/ . Written about faculty member research.
  • Type: Other Status: Published Year Published: 2016 Citation: Russell, A. 2016 (May 31). East Texas field day in Overton June 23 to feature hundreds of ornamental varieties. http://today.agrilife.org/2016/05/31/east-texas-field-day-in-overton-june-23-to-feature-hundreds-of-ornamental-varieties/ . Written about faculty member research.
  • Type: Other Status: Published Year Published: 2016 Citation: Russell, A. 2016 (24 June). 23rd Northeast Texas Horticulture Field Day a hit with horticulture enthusiasts. http://today.agrilife.org/2016/06/24/23rd-northeast-texas-horticulture-field-day-a-hit-with-horticulture-enthusiasts/ . Written about faculty member research.
  • Type: Other Status: Published Year Published: 2016 Citation: Russell, A. 2016 (1 August). 2016 Texas Superstar brochures are being distributed throughout Texas. http://today.agrilife.org/2016/08/01/2016-texas-superstar-brochures-are-being-distributed-throughout-texas/ . Written about faculty member research.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2016 Citation: Byrne, D., D. Golino, N. Anderson, S. Sim, K. Ong, and B. Pemberton. 2016. National Clean Plant Network for Roses. HortScience 51(9):S327-328 (Poster Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2016 Citation: Meyer, M.H., B. Fair, C.B. McKenney, B. Pemberton, M.D. Taylor, P. Bennett, J. Klett, A. Shay, K. Moore, L. Perry, and J. Rozum. 2016. HortScience 51(9):S209-210 (Oral Abstr.).


Progress 10/01/14 to 09/30/15

Outputs
Target Audience:Producers and consumers of ornamental plants. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Participated in the California Spring Trials event in April 2015 in several cities in California. Toured the research trial gardens at Ball Horticulture in July 2015 in West Chicago, Illinois. Participated in the annual meeting of the American Society for Horticultural Science in August 2015 in New Orleans, Louisiana. Participated in the Texas Nursery and Landscape Association Expo trade show in August 2015 in Dallas, Texas. How have the results been disseminated to communities of interest?This project has produced results and information which can potentially improve plant disease resistance, decrease pesticide applications, increase the economic viability of ornamental horticulture enterprises, improve knowledge of ornamental crop production management and improve plant selection for better landscape performance. This information has been disseminated via field days, presentations at public and professional events, and publications. What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? The East Texas Ornamental Plant Evaluations were continued with several hundred entries being tested for greenhouse and field performance. Research trials were conducted during the spring and fall seasons. Container trials were included. A national research trial of ornamental grasses was participated in. Outstanding entries to the summer trials were designated. Results are maintained on a website at http://flowers.tamu.edu/ for industry and consumer clientele. Research trials and marketing promotions were conducted for plants designated as Texas Superstar® plants. These plant designations are available at www.texassuperstar.com. The Texas Superstar® brochure was used for educational programming. Availability was promoted through participation in programs and trade shows and through publications. Studies were continued to determine the effects of high temperatures on flowering in poinsettia using a larger group of cultivars and comparing pinched vs. unpinched plants. This information is important for producers in latitudes that can experience high temperature delay during the usual time for poinsettia crop production. A research grant was procured from the Specialty Crops Research Initiative as part of a national team to study rose rosette disease in ornamental roses. Initial field plantings were established for the multi-year project.

Publications

  • Type: Journal Articles Status: Published Year Published: 2015 Citation: Pemberton, H.B. and J.F. Karlik. 2015. A recent history of changing trends in USA garden rose plant sales, types, and production methods. Acta Hort.1064:223-234.
  • Type: Journal Articles Status: Published Year Published: 2015 Citation: Greyvenstein, O., T. Starman, D. Byrne, H.B. Pemberton, and G. Niu. 2015. Mean daily maximum temperature for 8-14 days before harvest as a good predictor of change in garden rose flower dry weight. Acta Hort. 1064:67-72.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2015 Citation: King, A., M. Arnold, C. Hall, B. Pemberton, M. Palma, and S. Carver. 2015. Timing, root zone temperatures, and auxin concentrations affect quantity and quality of adventitious roots regenerated on shoot cuttings of native Texas groundcovers. HortScience 50(9):S165-166. (Oral Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2015 Citation: Pemberton, B., D. Byrne, A. Windham, J. Olson, G. Knox, and K. Ong. 2015. Combating rose rosette  the information pipeline. HortScience 50(9):S306-307. (Poster Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2015 Citation: Byrne, D., P. Klein, E. Roundey, M. Yan, B. Pemberton, X. Wang, M. Windham, T. Evans, D. Zlesak, M. Dobres, M. Scheiber, C. Bedard, M. Bink, E. van de Weg, J. Sproul, D. Holeman, and P. Lim. 2015. Combating rose rosette disease: breeding for resistance. HortScience 50(9):S307-308. (Poster Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2015 Citation: Ong, K., B. Pemberton, J. Olson, A. Windham, G. Knox, A. Brake, E. Roundey, and D. Byrne. 2015. Combating rose rosette  monitoring the extent and diversity of the disease. HortScience 50(9):S332-333. (Poster Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2015 Citation: Pemberton, B., R. Kobayashi, and W. Roberson. 2015. Varying durations of high temperature affects flowering time and flowering shoot morphology in poinsettia. HortScience 50(9):S387. (Poster Abstr.).
  • Type: Other Status: Published Year Published: 2015 Citation: Burns, R. 2015 (29 April). Heat-tolerant hybrid alyssum named Texas Superstar. AgriLife Today. http://today.agrilife.org/2015/04/29/heat-tolerant-hybrid-alyssum-named-texas-superstar/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2015 Citation: Burns, R. 2015 (29 May). East Texas horticultural field day set June 25. AgriLife Today. http://today.agrilife.org/2015/05/29/east-texas-horticultural-field-day-set-june-25-at-overton/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2015 Citation: Burns, R. 2015 (10 June). Arctic Frost Satsuma mandarin hybrid named new Texas Superstar. AgriLife Today. http://today.agrilife.org/2015/06/10/arctic-frost-satsuma-mandarin-hybrid-named-new-texas-superstar/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2015 Citation: Burns, R. 2015 (31 July). Little Ruby alternanthera named newest Texas Superstar plant. http://today.agrilife.org/2015/07/31/little-ruby-alternanthera-named-newest-texas-superstar-plant/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2015 Citation: Krueger, D. C. B. Leon, ed. 2015 (11 July). Learn from statewide experts at Master Gardener symposium. Victoria Advocate. https://www.victoriaadvocate.com/news/2015/jul/11/learn-from-statewide-experts-at-master-gardener-sy/ . Written about faculty member research.


Progress 12/11/13 to 09/30/14

Outputs
Target Audience: Producers and consumer of ornamental plants. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Participated in the California Spring Trials event in April 2014 in several cities in California. Toured the research trial gardens at Ball Horticulture in June 2014 in West Chicago, Illinois. Participated in the annual meeting of the American Society for Horticultural Science in July 2014 in Orlando, Florida. Participated in the Twenty-Ninth International Horticulture Congress in August 2014 in Brisbane, Australia. How have the results been disseminated to communities of interest? This project has produced results and information which can potentially decrease pesticide applications, increase the economic viability of ornamental horticulture enterprises, improve knowledge of ornamental crop production management and improve plant selection for better landscape performance. This information has been disseminated via field days, presentations at public and professional events, and publications. What do you plan to do during the next reporting period to accomplish the goals? Continue current approach with no changes.

Impacts
What was accomplished under these goals? The East Texas Ornamental Plant Evaluations were continued with several hundred entries being tested for greenhouse and field performance. Research trials were conducted during the spring and fall seasons. Container trials were included. A national research trial of ornamental grasses was participated in. Outstanding entries to the summer trials were designated. Results are maintained on a website at http://flowers.tamu.edu/ for industry and consumer clientele. Research trials and marketing promotions were conducted for plants designated as Texas Superstar® plants. These plant designations are available at www.texassuperstar.com. The Texas Superstar® brochure was used for educational programming. Availability was promoted through participation in programs and trade shows and through publications. Studies were continued to determine the effects of high temperatures on flowering in poinsettia using a larger group of cultivars and comparing pinched vs. unpinched plants. This information is important for producers in latitudes that can experience high temperature delay during the usual time for poinsettia crop production. In addition, an undergraduate student intern worked on a study focusing on postharvest longevity of pentas, an important summer ornamental crop. A research grant was procured from the Specialty Crops Research Initiative as part of a national team to study rose rosette disease in ornamental roses.

Publications

  • Type: Journal Articles Status: Published Year Published: 2014 Citation: Greyvenstein, O., H.B. Pemberton, T. Starman, G. Niu, and D. Byrne. 2014. Effect of two-week high-temperature treatment on flower quality and abscission of Rosa L. Belindas Dream and RADrazz (KnockOut�) under controlled growing environments. HortScience 49(6):701-705.
  • Type: Journal Articles Status: Published Year Published: 2014 Citation: Pemberton, H.B., T.D. Davis, M.A. Arnold, C. McKinney, L. Stein, D. Rodriguez, and R.D. Lineberger. 2014. Texas Superstar� Program  Using technology to promote the use of well-adapted plants for landscapes in high temperature regions with limited water resources. Journal of Arid Land Studies 24-1:209-211.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2014 Citation: Pemberton, H.B. and W.R. Roberson. 2014. Evaluation of a predetermined fungicide rotation for control of impatiens downy mildew in a Texas landscape. HortScience 49(9):S340. (Poster Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2014 Citation: King, A.R., M.A. Arnold, C.R. Hall, H.B. Pemberton, M.A. Palma and S.T. Carver. 2014. Influence of provenance on acute drought tolerance of four native Texas groundcover species. HortScience 49(9):S225-226. (Oral Abstr.).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2014 Citation: Pemberton, H.B., R. Kobayashi and W. Roberson. 2014. High temperature affects flowering time and flowering shoot morphology differently in poinsettia. Twenty-ninth International Horticulture Congress Brisbane, Australia Abstract # 01405. (Poster Abstr.).
  • Type: Other Status: Published Year Published: 2014 Citation: Pemberton, B., L. Stein, D. Lineberger, C. McKenney, D. Rodriguez, M. Arnold and T. Davis. 2014. Texas Superstar� promotions for 2014. TNLA Green 16(1) (Jan-Feb): 42-43.
  • Type: Other Status: Published Year Published: 2014 Citation: Burns, R. 2014 (13 March). Tycoon tomato named Texas Superstar. AgriLife Today. https://today.agrilife.org/2014/03/13/tycoon-tomato-texas-superstar/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2014 Citation: Burns, R. 2014 (6 May 2014). Purple Flash named Texas Superstar. AgriLife Today. https://today.agrilife.org/2014/05/06/purple-flash-named-texas-superstar/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2014 Citation: Burns, R. 2014 (27 May). East Texas horticultural field day set June 26. AgriLife Today. http://today.agrilife.org/2014/05/27/2014-east-texas-horticultural-field-day/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2014 Citation: Burns, R. 2014 (4 June). Super cold hardy Satsuma Orange Frost named Texas Superstar. http://today.agrilife.org/2014/06/04/satsuma-orange-frost-texas-superstar/. Written about faculty member research.
  • Type: Other Status: Published Year Published: 2014 Citation: Burns, R. 2014 (22 August). New and old fall zinnias named Texas Superstars. http://today.agrilife.org/2014/08/22/fall-zinnias-named-texas-superstars/. Written about faculty member research.