Progress 09/01/16 to 08/31/19
Outputs
Target Audience:Potato growers, potato processors, home gardeners, and consumers of potatoes and potato products. Research results are delivered in written reports, popular press, web sites, and presentations at grower meetings. Variety development involves applied research which is conducted on University research station farms, commercial farms, and by home gardeners. Some of the new potato varieties go directly to consumers via supermarkets, farmers' markets, and roadside stands, while others are utilized by potato chip and/or french fry processors. The resulting processed products are purchased by consumers. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?Students, technicians, and professionals working on the project learned about agricultural research, potato breeding, potato cultivar development, and the need for improved potato varieties. How have the results been disseminated to communities of interest?Advanced clones from our project were introduced to growers through field days, presentations, publications, web sites, and direct contact with stakeholders at state, regional and national potato industry meetings. Results from the project are also made available through our project web site at http://potatoes.ncsu.edu/NE.html.Two recent chipping releases from NY, Waneta and Lamoka, were developed as part of our collective research effort. Based on certified seed acreage in 2018, Lamoka (3458 acres) has replaced Snowden (1674 acres) as the standard storage chipping variety across the U.S. Waneta has also been widely adopted (1125 seed acres in 2018). We estimate that the annual value of potato chip production from Lamoka and Waneta now exceeds $1billion (~15% of US chip production). Niagara (2018), formerly NY152, was released for chipping and has high yields, excellent chip color out of cold storage, common scab resistance, and a small tuber size profile (which makes it well-suited for highly popular, snack-sized potato chip bags). From ME, Caribou Russet was released during 2015 for fry processing and russet fresh market and was produced on 448 seed acres during 2018. It is being rapidly adopted due to high yields, scab and verticillium resistance, and excellent consumer quality. AF4124-7 and several other advanced fry processing clones are generating strong commercial interest. Twenty additional French fry clones are currently being evaluated by North American potato processors. For fresh market, NY released Brodie (NY140) during 2018 as a dual-purpose table and chipstock variety with excellent marketable yields, attractive tuber skin and excellent fry color out of cold storage. It is the first U.S. cultivar with resistance to race Ro2 of the golden nematode and it is also resistant to race Ro1. Ro1 is the long-time golden nematode pest in New York, while Ro2 is a newer race that has become increasingly difficult to manage in New York. NY also released Upstate Abundance (NY150) and Algonquin (NY141) during 2017. Upstate Abundance is a specialty white with very small, bright tubers. It has potato virus Y (PVY), late blight, and golden nematode resistance as well as moderate common scab tolerance. It is being commercialized by specialty fresh market growers. Algonquin is being grown for fresh market and is a white skinned, white fleshed variety. It has high yields and good tuber appearance as well as resistance to common scab and golden nematode. The University of Maine released Pinto Gold (AF4659-12) in 2018. It is a pinto-type, yellow-fleshed 'roasting' variety is also being commercialized by small-scale local foods markets. USDA-ARS released Little Ruby (B2152-17) during 2015 and Red Dawn (BNC201-1) in 2018. NY released Strawberry Paw (NY136) during 2013. These three varieties are attractive, red-skinned potato varieties for high-value fresh market use. They have been adopted on a small-scale by specialty market growers, thus far. Other fresh market releases Red Maria (2010), a high-yielding red, Lehigh (2007), a widely-adapted yellow-fleshed variety, and Peter Wilcox (2007), a novel purple-skinned, yellow-fleshed variety continue to be adopted by fresh market growers. As evidenced above, the advanced clones and releases from the Eastern project continue to be commercially evaluated and adopted by farmers and our industry stakeholders. Recent Eastern releases were grown on 3,027 ME and NY seed acres during 2018 with a seed value of ca. $9.1M. The resulting seed crop had the potential to plant 30,267 acres in 2019 with a ware value estimated at $90.8M. Nationally, varieties produced by our long-term project were grown on 6,649 seed acres during 2018 with an approximate seed value of $20.0 M Several varieties developed though our collective efforts are currently in the top 50 U.S. varieties including (acres, national rank): Lamoka (3458, 7), Waneta (1125, 18), Caribou Russet (448, 32), Lehigh (334, 40), Pike (233, 46), Keuka Gold (162, 57), Reba (132, 64), Andover (107, 70), Niagara (101, 71), Brodie (87, 77), Eva (80, 78), NY115 (75, 84), and Harley Blackwell (66, 89) . Certified seed potato acres for 2019 should be available soon so that our impact estimate can be updated. Our collaborative programs are ideally located to breed and select new potato varieties for the important but stressful southeast and east coast growing areas (FL, NC, VA, MD, NJ, DE, NY, and other states). These areas are characterized by short growing seasons, inconsistent rainfall leading to both deficits and flooding, early-season frosts, and late-season heat stress. Atlantic, which occupies ~50% of NC's acreage, generated ca. $10 million in NC farm-gate receipts is a major variety throughout this region. The chip industry has indicated that replacing Atlantic is a major goal for potato variety development in the U.S. Most major varieties, including Atlantic the dominant out-of-field chipping variety in the U.S., and Lamoka a current leader in storage chipping market, have passed through the eastern U.S. potato breeding collaborative. Our collaborative project is well designed and ideally situated to address future variety needs in the eastern half of the U.S. Disease and pest challenges cost the U.S. potato industry many millions of dollars annually in yield and quality losses, as well as increased control costs. Predominant diseases in the East include late blight, early blight, common scab, powdery scab, soft rot, pink rot, and potato virus Y. Developing improved varieties with resistance to these diseases is the most sustainable long-term approach to combating them. Resistant varieties result in decreased yield and quality losses, while in some cases they allow growers to reduce their use of chemical pesticides. Sometime resistant varieties are the only practical solution to a pest problem. For example, potatoes cannot be produced in some areas of New York unless golden nematode resistant varieties are grown. What do you plan to do during the next reporting period to accomplish the goals?A new research grant has been received to allow us to continue our potato breeding and variety development efforts along similar lines, including commercial trials of the most advanced potato clones from the project. We will continue to work with constituents ranging from individual growers to state grower groups and processors to improve the effectiveness of the project. We will continue to update and improve the project database and website.
Impacts
What was accomplished under these goals?
Research activities took place in seven states (FL, ME, NC, NY, OH, PA and VA) during 2017-2019 and involved collaborations with the USDA-ARS Potato Breeding Programs in Beltsville, MD, Aberdeen, ID and Madison, WI, as well as the Potatoes USA National Chip and Fry Processor's Trials. Potato breeding for improved quality and pest resistance continued in ME, NY, NC, and USDA-ARS during 2017-2019. Our programs generated 1181 new tetraploid families (635,741 seeds) from crosses using parents with desirable quality, adaptation, and/or pest resistance traits. USDA-ARS also generated 115 crosses with diploids (2x-2x or 4x-2x, 48,506 seeds) for use in germplasm improvement. First-year field selections were conducted using progeny (164,712) from earlier crosses. As a result, 6,503 new clones were selected for further field and laboratory evaluation under the diverse abiotic and biotic stress conditions of the eastern U.S. and beyond. Multi-site evaluation of early-generation clones speeds the breeding and selection process and enables us to identify both broadly- and specifically-adapted clones. Advanced clones from our project were introduced to growers through field days, on-farm demonstrations, presentations, publications, web sites, and direct contact with stakeholders at state, regional and national potato industry meetings. The advanced clones and releases from the Eastern project continue to be commercially evaluated and adopted by farmers and our industry stakeholders. Recent Eastern releases were grown on 3,027 ME and NY seed acres during 2018 with a seed value of ~$9.1M. The resulting seed crop had the potential to plant 30,267 acres in 2019 with a ware value estimated at $90.8M. Nationally, varieties produced by our long-term project were grown on 6,649 seed acres during 2018 with an approximate seed value of $20.0M. Several varieties developed though our collective efforts are in the top 100 U.S. varieties including (acres, rank): Lamoka (3458, 7), Waneta (1125, 18), Caribou Russet (448, 32), Lehigh (334, 40), Pike (233, 46), Keuka Gold (162, 57), Reba (132, 64), Andover (107, 70), Niagara (101, 71), Brodie (87, 77), Eva (80, 78), NY115 (75, 84), and Harley Blackwell (66, 89). 2019 certified seed acreage should be available soon to allow us to update our project's impacts. NY's recent chipping releases Waneta (NY138) and Lamoka (NY139) have been widely adopted by commercial growers. Based on 2018 certified seed acreage, Lamoka (3458 acres) has replaced Snowden (1692 acres) as the standard storage chipping variety across the U.S. Waneta has also been widely adopted (1125 acres of seed in 2018). We estimate that the annual value of potato chip production from Lamoka and Waneta exceeds one billion dollars (~15% of U.S. chip production). Brodie (2018), formerly NY140, is a dual-purpose table and chipstock variety with excellent marketable yields, attractive tuber skin and excellent fry color out of cold storage. It is the first U.S. cultivar with resistance to race Ro2 of the golden nematode and it is also resistant to race Ro1. Niagara (2018), formerly NY152, was released for chipping and has high yields, excellent chip color out of cold storage, common scab resistance, and small tuber size profile (which makes it well-suited for highly popular, snack-sized bags of potato chips). USDA-ARS released Red Dawn (BNC201-1) during 2017 and the University of Maine released Pinto Gold (AF4659-12) during 2018. Red Dawn has attractive, red-skinned tubers with pale yellow flesh. Pinto Gold has attractive red and yellow patterned skin, yellow flesh, small tuber size for specialty market, and excellent flavor. Upstate Abundance (NY150) was released in 2017 and combines small tuber size for specialty market, bright white skin, several important disease resistance traits, and high yields. Little Ruby (2013, USDA-ARS) and Strawberry Paw (2013, NY), are also recent eastern releases. Both varieties are attractive, red-skinned potato varieties for high-value fresh market use. Other fresh market releases Algonquin (2017), a high yielding white, Red Maria (2010), a high-yielding red, Lehigh (2007), a widely-adapted yellow-fleshed variety, and Peter Wilcox (2007), a novel purple-skinned, yellow-fleshed variety continue to be adopted by fresh market growers. Caribou Russet (AF3362-1) was released by ME during 2015 for fry processing and russet fresh market. It is being rapidly adopted due to high yields, scab and verticillium resistance, and excellent consumer quality. Certified seed acreage rose to 448 acres (#32 in the US) during 2018. Caribou Russet's cash farm value to ME growers was $5.3M during 2018. AF4124-7, AF5071-2, and AF5406-7 are advanced fry processing clones that are generating strong commercial interest. Twenty additional French fry clones are currently being evaluated by North American potato processors. The project places special emphasis on breeding and selecting clones with resistance to late blight, early blight, scab, golden nematode races Ro1 and Ro2, potato virus Y (PVY) and other diseases. Recent releases Upstate Abundance, Niagara, Eva, and Pinto Gold have resistance to PVY. Brodie and Upstate Abundance have resistance to two golden nematode races (Ro1 and Ro2). Many other recent releases have resistance to one or more important pests, including common scab, golden nematode, and verticillium wilt. Marker-assisted selection is being used to speed the development of PVY and golden nematode resistant varieties. All NY round whites, and most of the NY colored crosses, segregate for resistance to golden nematode Ro1 or Ro2, as do many crosses from the ME, NC and USDA programs. AF4648-2, a promising white-skinned variety that is being commercially evaluated has resistance to scab, late blight, PVY, pink rot, and golden nematode. Disease resistant varieties generated by this project have the potential to greatly reduce growers' losses to devastating diseases such as late blight and can also reduce production costs. Golden nematode, a serious pest found in NY and in other countries, cannot be effectively managed without resistant varieties. Research on the genetics of internal heat necrosis (IHN) and the development of clones and populations with improved resistance to this tuber defect continued. The test site in NC provides good environmental conditions that all four breeding programs utilize in selecting for IHN resistance. During 2017 and 2018, NC screened a total of 2,026 early generation clones. Of these 267 were from NC, 507 from ME, 246 from the USDA-ARS Beltsville, while 711 were from the Early Generation Southern Selection Program (EGSS) and 295 were from the NCPT programs sponsored by Potatoes USA (both EGSS and NCPT contain clones from CO, ME, MI, NC, ND, NY, OR, TX, USDA-ID, USDA-MD and WI). The NC mapping population B2721 was genotyped with the Infinium® 8303 SNP array developed by the USDA-NIFA SolCAP project and quantitative trait loci (QTL) were detected for IHN on chromosomes 1, 5, 9, and 12. Genetic effect models explained roughly 28 and 25% of the variation for IHN incidence and severity, respectively and we have tentatively identified several candidate markers for IHN susceptibility. QTL analyses of these traits has been conducted. Our project web site and searchable database continues to grow in size and utility (http://potatoes.ncsu.edu/NE.html). The site provides current contact information for project cooperators and recent research reports, as well as access to our regional variety database and a dynamic summary generator for all released varieties.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Bali, S. G. Patel, R. Novy, K. Vining, A. Thompson, C. Brown, D. Holm, G. Porter, J. Endelman, and V. Sathuvalli. 2018. Evaluation of genetic diversity among russet potato clones and varieties from breeding programs across the United States. Plos One. Published online (2018) doi: 10.1371/journal.pone.0201415
- Type:
Journal Articles
Status:
Published
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. Amer J. Potato Res. doi.org/10.1007/s12230-018-9681-x.
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Park J, Yang H, De Jong WS, Wang X (2018) An Evaluation of two H1-Linked Markers and their Suitability for Selecting Globodera rostochiensis Resistant Potatoes in the New York Breeding Program. American Journal of Potato Research 95:170-177 https://doi.org/10.1007/s12230-017-9623-z
- Type:
Other
Status:
Published
Year Published:
2019
Citation:
Porter, G.A., P. Ocaya, B. MacFarline, and B. Plummer. 2019. Potato variety trial results in Maine, 2019 growing season. SFA Research Report (posted on www and distributed to industry), 2019-01, 40 pp.
- Type:
Other
Status:
Published
Year Published:
2019
Citation:
Porter, G.A. and P. Ocaya. 2019. Maine potato breeding program annual report, 2019 growing season. SFA Research Report (posted on www and distributed to industry), 22 pp.
- Type:
Journal Articles
Status:
Published
Year Published:
2019
Citation:
Schmitz Carley, C. A., J. J. Coombs, M. E. Clough, W. S. De Jong, D. S. Douches, K. G. Haynes, C. R. Higgins, D. G. Holm, J. C. Miller, Jr., F. M. Navarro, R. G. Novy, J. P. Palta, D. L. Parish, G. A. Porter, V. R. Sathuvalli, A. L. Thompson, G. C. Yencho, L. Zotarelli, and J. B. Endelman,. 2019. Genetic covariance of environments in the potato national chip processing trial. Crop Sci. 58: 1-8. Published online (2018) doi: 10.2135 /cropsci2018.05.0314
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Progress 09/01/17 to 08/31/18
Outputs
Target Audience:Potato growers, potato processors, home gardeners, and consumers of potatoes and potato products. Research results are delivered in written reports, popular press, web sites, and presentations at grower meetings. Variety development involves applied research which is conducted on University research station farms, commercial farms, and by home gardeners. Some of the new potato varieties go directly to consumers via supermarkets, farmers' markets, and roadside stands, while others are utilized by potato chip and/or french fry processors. The resulting processed products are purchased by consumers. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?
Nothing Reported
How have the results been disseminated to communities of interest?Advanced clones from our project were introduced to growers through field days, presentations, publications, web sites, and direct contact with stakeholders at state, regional and national potato industry meetings. The most promising advanced clones enter commercial trials to further explore their potential for important markets, such as chip processing, French fry production, fresh market, and specialty use. As a case for commercialization is built, seed stocks of these promising varieties are multiplied by commercial seed potato growers. The advanced clones and releases from the Eastern project continue to be commercially evaluated and adopted by farmers and our industry stakeholders. Recent Eastern releases were grown on 2,876 ME and NY seed acres during 2017 with a seed value of ca. $8.6M. The resulting seed crop has the potential to plant 28,767 acres in 2018 with a ware value estimated at $86.3M. Nationally, varieties produced by our long-term project were grown on 5,808 seed acres during 2017 with an approximate seed value of $17.4M. The resulting seed crop has the potential to plant 58,808 acres in 2018 with a ware value estimated at $174.3M. Several varieties developed though our collective efforts are currently in the top 50 U.S. varieties including (acres, rank): Lamoka (2702, 10), Waneta (1025, 19), Lehigh (361, 41), Caribou Russet (347,42), and Pike (271, 45). Several additional varieties developed by this program are in the top 100 of US potato varieties: Keuka Gold (161 acres), (Reba (128 acres), NY115 (128 acres), Eva (125 acres), and Andover (94 acres). NCSU hosts, curates, and continually improves the project website and web-based databases using input from the project participants. Our project web site and searchable database continues to grow in size and utility (http://potatoes.ncsu.edu/NE.html). The site provides current contact information for project cooperators and recent research reports, as well as access to our regional variety database and a dynamic summary generator for all released varieties. The interactive database can be viewed at . Presentations (tours, grower meetings, trade Shows): Brown, K.B., G.A. Porter, J. Hao, P.C. Ocaya, and T. Mills. 2018. Progress report on developing DNA-based markers for improving late blight resistance of potato. Report to the Maine Potato Board, Presque Isle, ME. (February 13, 2018). Clarke, C. 2018. Overview of current research on common scab of potato. Report to the NE1731 Eastern Regional Project Technical Committee, Beltsville, MD. (January 4-5, 2018). De Jong, W. S. Potato Show & Tell. Ithaca, NY (December 9, 2017). Haynes, K. 2018. USDA-ARS Beltsville potato genetics and breeding program direction for the next five years. Report to the NE1731 Eastern Regional Project Technical Committee, Beltsville, MD. (January 4-5, 2018). Porter, G.A. 2017. Potato breeding, variety development, and management research update. Maine Potato Board Legislative Tour, Presque Isle, ME. (July 13, 2017). Porter, G.A. 2017. Potato breeding, variety development, and management research update. Maine Potato Board Research Tour, Presque Isle, ME. (August 17, 2017). Porter, G.A. and P. Ocaya. 2018. Progress report on new potato variety research - 2017 Growing Season. Report to the Maine Potato Board, Presque Isle, ME. (February 13, 2018). Porter, G.A., P. Ocaya, and T. Mills. 2018. Progress report on Maine potato breeding program - 2017 growing season. Report to the Maine Potato Board, Presque Isle, ME. (February 13, 2018). Porter, G.A., P. Ocaya, and T. Mills. 2018. Progress report on potato variety research and University of Maine potato breeding program. Report to the NE1731 Eastern Regional Project Technical Committee, Beltsville, MD. (January 4-5, 2018). Porter, G.A., P. Ocaya, and T.Mills 2018. Maine potato breeding program trade show booth. University of Maine Cooperative Extension Potato Conference, Caribou, ME. (January 2018). Porter, G.A., P. Ocaya, and T.Mills 2018. Maine potato breeding program. US Potato Board and National Potato Council, North American Potato EXPO, Orlando, FL, (January, 2018). Exhibit prepared by G. Porter; ME Potato Board staff attended and answered questions. Qu, X. 2018. GWAS research to identify loci associated with resistance to early and late blight. Report to the NE1731 Eastern Regional Project Technical Committee, Beltsville, MD. (January 4-5, 2018). Yencho, G.C. and M.E. Clough. 2017. Field Research Tours at Plymouth Agricultural Research and Extension Center, Plymouth, NC (two per year, dates not available). Yencho, G.C. and M.E. Clough. 2017. Stakeholder and Industry Research Discussions and Tours at Plymouth Agricultural Research and Extension Center, Plymouth, NC and NCSU Campus, Raleigh, NC (several per year, dates not available). Zotarelli, L. 2018 Research to characterize the high nitrogen utilization efficiency of S. chacoense. Report to the NE1731 Eastern Regional Project Technical Committee, Beltsville, MD. (January 4-5, 2018). Zotarelli, L. 2018 Research on selecting clones for the Papa Criolla market (small tubers, deep yellow flesh) from long day adapted phu-stn. Report to the NE1731 Eastern Regional Project Technical Committee, Beltsville, MD. (January 4-5, 2018). Zotarelli, L. University of Florida - Hastings Agricultural Education Center, Stakeholder Advisory Committee Meeting: Potato Research Update (July 2017) Reports made available to stakeholders: Arancibia, R. 2017. Virginia Potato Variety Trial Report - 2017. Arancibia, R.A. 2017. Potato. In Wyenandt (Coordinator), Elsa Sanchez (Hort. Ed.), 2016-2017 Mid-Atlantic Commercial Vegetable Production Recommendations (2017 revision). VCE publication 456-420 (AREC-203P) http://www.pubs.ext.vt.edu/456/456-420/456-420.html De Jong, W.S., R. Plaisted, D.E. Halseth, and S. Menasha. 2017. New York Potato Variety Trial and Breeding Report - 2017, 40 pp. Kleinhenz, M.D., S.D. Walker, B. Williams, and Walter. 2017. Ohio Potato Germplasm Evaluation Report - 2017, 88 pp. Ohio State University Horticulture and Crop Series Series N. 856. Also available at https://potatoes.ncsu.edu/NEReports.html Porter, G.A., P. Ocaya, B. MacFarline, and B. Plummer. 2017. Potato variety trial results in Maine, 2017 growing season. SFA Research Report (posted on www and distributed to industry), 2017-01, 40 pp. Also available at https://potatoes.ncsu.edu/NEReports.html Porter, G.A., P. Ocaya, and T. Mills. 2017. Maine potato breeding program annual report, 2017 growing season. SFA Research Report (posted on www and distributed to industry), 20 pp. Qu, X. and B.J. Christ. 2017. Pennsylvania Potato Research Report- 2017, 55 pp (posted on www and distributed to industry). Also available at https://potatoes.ncsu.edu/NEReports.html Yencho, G.C. and M.E. Clough. 2017. NC Potato Variety Trial and Breeding Report - 2017, 50 pp. Also available at https://potatoes.ncsu.edu Zotarelli, L. 2017. Florida Potato Variety Trial Report - 2017, 122 pp. Also available at http://hos.ufl.edu/extension/variety-trials/variety-trial-crops/potatoes What do you plan to do during the next reporting period to accomplish the goals?We plan to continue our potato breeding and variety development efforts along similar lines, including commercial trials of the most advanced potato clones from the project. We will continue to work with constituents ranging from individual growers to state grower groups and processors to improve the effectiveness of the project. We will continue to update and improve the project database and website.
Impacts
What was accomplished under these goals?
Research activities took place in seven states (FL, ME, NC, NY, OH, PA and VA) during 2017 and involved collaborations with the USDA-ARS Potato Breeding Programs in MD, ID and WI, as well as the Potatoes USA National Chip and Fry Processor's Trials. Potato breeding for improved quality and pest resistance continued in ME, NY, NC, and USDA-ARS during 2017 and 2018. Our programs generated 671 new tetraploid families (317,541 seeds) from crosses using parents with desirable quality, adaptation, and/or pest resistance traits. USDA-ARS Beltsville also generated 115 diploid families (2x or 4x-2x, 48,906 seeds) for use in germplasm improvement. First-year field selections were conducted using progeny (85,282) from earlier crosses. As a result, 3,394 new clones were selected for further evaluation during 2018 under the diverse abiotic and biotic stress conditions of the eastern U.S. and beyond. Multi-site evaluation of early-generation clones speeds the breeding and selection process and enables us to identify both broadly- and specifically-adapted clones. Candidate potato varieties were evaluated during 2017 for yield, quality, stress tolerance, and pest resistance in replicated trials in FL, ME, NC, NY, OH, PA, and VA. The most promising were advanced for further testing, seed production, and commercial evaluation during 2018. Advanced clones from our project were introduced to growers through field days, presentations, publications, web sites, and direct contact with stakeholders at state, regional and national potato industry meetings. The most promising advanced clones enter commercial trials to further explore their potential for important markets, such as chip processing, French fry production, fresh market, and specialty use. As a case for commercialization is built, seed stocks of these promising varieties are multiplied by commercial seed potato growers. NY's two most recent chipping releases are Waneta (NY138) and Lamoka (NY139). Based on certified seed acreage in 2017, Lamoka (2702 acres) has now replaced Snowden (1818 acres) as the standard storage chipping variety across the U.S. Waneta has also been widely adopted (1025 acres of seed in 2017). We estimate the value of potato chip production from Lamoka and Waneta for 2018 will be one billion dollars (~15% of US chip production). Algonquin (tested as NY141) was released by Cornell University during 2017. Algonquin is being grown for fresh market and is a white skinned, white fleshed variety. It has high yields and good tuber appearance as well as resistance to common scab and golden nematode. Upstate Abundance (tested as NY150) was released by Cornell University during 2017. Upstate Abundance is a specialty white with very small, bright tubers. It has potato virus Y (PVY), late blight, and golden nematode resistance as well as moderate common scab tolerance. It is being commercialized by specialty fresh market growers. Caribou Russet (AF3362-1) was released during 2015 for fry processing and russet fresh market. It is being rapidly adopted due to high yields, scab and verticillium resistance, and excellent consumer quality. At 347 acres, it has already risen to 42nd ranking in U.S certified seed acreage. AF4124-7, AF4296-3, AF5071-2 are advanced fry processing clones that are generating commercial interest. Twenty additional French fry clones are currently being evaluated by North American potato processors. AF5312-1 is a promising fresh market russet. As evidenced above, the advanced clones and releases from the Eastern project continue to be commercially evaluated and adopted by farmers and our industry stakeholders. Recent Eastern releases were grown on 2,876 ME and NY seed acres during 2017 with a seed value of ca. $8.6M. The resulting seed crop has the potential to plant 28,767 acres in 2018 with a ware value estimated at $86.3M. Nationally, varieties produced by our long-term project were grown on 5,808 seed acres during 2017 with an approximate seed value of $17.4M. The resulting seed crop has the potential to plant 58,808 acres in 2018 with a ware value estimated at $174.3M. Several varieties developed though our collective efforts are currently in the top 50 U.S. varieties including (acres, rank): Lamoka (2702, 10), Waneta (1025, 19), Lehigh (361, 41), Caribou Russet (347,42), and Pike (271, 45). Several additional varieties developed by this program are in the top 100 of US potato varieties: Keuka Gold (161 acres), (Reba (128 acres), NY115 (128 acres), Eva (125 acres), and Andover (94 acres). The project places special emphasis on breeding and selecting clones with resistance to late blight, early blight, scab, golden nematode races Ro1 and Ro2, and potato virus Y (PVY).Marker-assisted selection is being used to speed the development of PVY and golden nematode resistant varieties. All NY round whites, and most of the NY colored crosses, segregate for resistance to golden nematode Ro1 or Ro2, as do many crosses from the ME, NC and USDA programs.Disease resistant varieties generated by this project have the potential to greatly reduce growers' losses to devastating diseases such as late blight and can also reduce production costs. Golden nematode, a serious pest found in NY and in other countries, cannot be effectively managed without resistant varieties. We are identifying additional potato germplasm that carries the extreme PVY resistance locus, Ryadg, using the established PCR-based marker, RYSC3. One of the genotypes that we have tested is IVP48, a Phureja-derived Group Andigena haploid inducer. IVP48 tested positive for RYSC3 and this will provide a means of transferring the RYSC3 locus, along with Ryadg into potato dihaploids derived from cultivated potato varieties that do not have PVY resistance. We have also begun Ren-Seq analysis of NY121, a parent that is commonly used to generate families that segregate for PVY resistance conferred by Ryadg. Research on the genetics of internal heat necrosis (IHN) and the development of clones and populations with improved resistance to this tuber defect continued. The test site in NC provides good environmental conditions that all four breeding programs utilize in selecting for IHN resistance. In 2017, NC screened a total of 1248 early generation clones. Of these 389 were from NC, 253 from ME, 202 from the USDA-ARS Beltsville, 258 from the early generation southern selection trial (EGSS), and 146 were from the National Chip Processor Trial (NCPT). Both the EGSS and NCPT trials had clones from CO, ME, MI, NC, NY, OR, TX, USDA-MD and WI. This speeds our selection of breeding materials adapted to the high temperature, short-season Southeastern U.S. environments. The NC mapping population B2721 was genotyped with the Infinium® 8303 SNP array developed by the USDA-NIFA SolCAP project and quantitative trait loci (QTL) were detected for IHN on chromosomes 1, 5, 9, and 12. Genetic effect models explained roughly 28 and 25% of the variation for IHN incidence and severity, respectively and we have tentatively identified several candidate markers for IHN susceptibility. NCSU hosts, curates, and continually improves the project website and web-based databases using input from the project participants. Our project web site and searchable database continues to grow in size and utility (http://potatoes.ncsu.edu/NE.html). The site provides current contact information for project cooperators and recent research reports, as well as access to our regional variety database and a dynamic summary generator for all released varieties. The interactive database can be viewed at .
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Da Silva, W.L., J. Ingram, C.A. Hackett, J.J. Coombs, D. Douches, G.J. Bryan, W. De Jong, and S. Gray. 2017 Mapping Loci that Control Tuber and Foliar Symptoms caused by PVY in Autotetraploid Potato (Solanum tuberosum L). G3 7, 3587-3595. https://doi.org/10.1534/g3.117.300264
- Type:
Journal Articles
Status:
Published
Year Published:
2018
Citation:
Endelman, Jeffrey B., Cari A. Schmitz Carley, Paul C. Bethke, Joseph J. Coombs, Mark E. Clough, Washington L. da Silva, Walter S. De Jong, David S. Douches, Curtis M. Frederick, Kathleen G. Haynes, David G. Holm, J. Creighton Miller, Patricio R. Munoz, Felix M. Navarro, Richard G. Novy, Jiwan P. Palta, Gregory A. Porter, Kyle T. Rak, Vidasagar R. Sathuvalli, Asunta L. Thompson, and G. Craig Yencho. 2018. Genetic variance partitioning and genome-wide prediction with allele dosage information in autotetraploid potato. Genetics 209(1): 77-87; https:doi.org/10.1534/genetics.118.300685
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Simko, I. and K.G. Haynes. 2017. Maturity-adjusted resistance of potato (Solanum tuberosum L.) cultivars to Verticillium wilt caused by Verticillium dahliae. Amer. J. Potato Res. 94:173-177.
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Porter, G.A., P. Ocaya, and T. Mills. 2017. Caribou Russet: A new russet potato variety for fresh market and fry processing. American Journal of Potato Research 94:239 (abst).
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Porter, G.A. and P. Ocaya. 2017. Processing quality of advanced fry processing varieties versus Russet Burbank in SCRI agronomic trials, Maine 2013-2015. American Journal of Potato Research 94:240 (abst).
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Arancibia, R. 2017. Virginia Potato Variety Trial Report - 2017.
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Porter, G.A., P. Ocaya, and T. Mills. 2017. Maine potato breeding program annual report, 2017 growing season. SFA Research Report (posted on www and distributed to industry), 20 pp.
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Qu, X. and B.J. Christ. 2017. Pennsylvania Potato Research Report- 2017, 55 pp (posted on www and distributed to industry). Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Yencho, G.C. and M.E. Clough. 2017. NC Potato Variety Trial and Breeding Report - 2017, 50 pp. Also available at https://potatoes.ncsu.edu
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Zotarelli, L. 2017. Florida Potato Variety Trial Report - 2017, 122 pp. Also available at http://hos.ufl.edu/extension/variety-trials/variety-trial-crops/potatoes
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Arancibia, R.A. 2017. Potato. In Wyenandt (Coordinator), Elsa Sanchez (Hort. Ed.), 2016-2017 Mid-Atlantic Commercial Vegetable Production Recommendations (2017 revision). VCE publication 456-420 (AREC-203P) http://www.pubs.ext.vt.edu/456/456-420/456-420.html
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
De Jong, W.S., R. Plaisted, D.E. Halseth, and S. Menasha. 2017. New York Potato Variety Trial and Breeding Report - 2017, 40 pp.
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Kleinhenz, M.D., S.D. Walker, B. Williams, and Walter. 2017. Ohio Potato Germplasm Evaluation Report - 2017, 88 pp. Ohio State University Horticulture and Crop Series Series N. 856. Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2017
Citation:
Porter, G.A., P. Ocaya, B. MacFarline, and B. Plummer. 2017. Potato variety trial results in Maine, 2017 growing season. SFA Research Report (posted on www and distributed to industry), 2017-01, 40 pp. Also available at https://potatoes.ncsu.edu/NEReports.html
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Progress 09/01/16 to 08/31/17
Outputs
Target Audience:Potato growers, potato processors, home gardeners, and consumers of potatoes and potato products. Research results are delivered in written reports, popular press, web sites, and presentations at grower meetings. Variety development involves applied research which is conducted on University research station farms, commercial farms, and by home gardeners. Some of the new potato varieties go directly to consumers via supermarkets, farmers' markets, and roadside stands, while others are utilized by potato chip and/or French fry processors. The resulting processed products are purchased by consumers. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?
Nothing Reported
How have the results been disseminated to communities of interest?Results from this project have been made available through field days, trade show booths, printed materials, and presentations (scientific meetings and stakeholder meetings). Results from the project are also made available through our project web site at http://potatoes.ncsu.edu/NE.html. Presentations (scientific meetings): De Jong, W. S. Blackleg and Dickeya in Seed Potato Production in New York March 1, 2017 USDA-ARS, Robert W. Holley Center Conference Room, Cornell University, Ithaca, NY. Attended by ~20 USDA-ARS and -APHIS personnel, NY potato industry representatives, and NY State Department of Agriculture and Markets representatives. Hao, J.J. 2016. Responses of potato varieties and effects of chemical compounds to Pectobacterium spp. and Dickeya spp. that cause blackleg of potato. 2016 Northeastern Division American Phytopathological Society Annual Meeting, Ithaca, NY. Nov. (19-21, 2016). Jiang, H.H. 2016. Resistance Screen of Potato variety to Pink Rot caused by Phytophthora erythroseptica. 2016 Northeastern Division American Phytopathological Society Annual Meeting, Ithaca, NY. (Nov. 19-21, 2016). Presentations (tours, grower meetings, trade Shows): Arancibia, R.A. 2017. Potato Variety Trial & Performance in the Mid-Atlantic Region. 27th Annual Eastern Shore Agricultural Conference, Melfa, VA. (Jan 25-26, 2017). Arancibia, R.A. 2017. Potato variety trials. Eastern Shore AREC Tour to Master Gardeners, Painter, VA. (April 4, 2017). De Jong, W. S. Potato Show & Tell. Ithaca, NY (December 9, 2016). Hao, J.J. 2017. Evaluation of strategies in managing pink rot of potato. 2017 Annual Maine Potato Conference. Caribou, ME. (Jan. 18-19, 2017). Hao, J.J. 2016. Multi-facet approaches in managing potato diseases. 2016 Potato Pest Management Conference. Presque Isle, ME. (Dec. 7, 2016). Porter, G.A. 2017. Potato breeding, variety development, and management research update. Maine Potato Board Legislative Tour, Presque Isle, ME. (July 13, 2017). Porter, G.A. and P. Ocaya. 2017. Progress report on new potato variety research - 2016 Growing Season. Report to the Maine Potato Board, Presque Isle, ME. (February 17, 2017). Porter, G.A., P. Ocaya, and T. Mills. 2017. Progress report on Maine potato breeding program - 2016 growing season. Report to the Maine Potato Board, Presque Isle, ME. (February 17, 2017). Porter, G.A. K.B. Brown, B. De los Reyes, J. Hao and G.A. Porter. 2017. Progress report on developing DNA-based markers for improving late blight resistance of potato. Report to the Maine Potato Board, Presque Isle, ME. (February 17, 2017). Porter, G.A. and P. Ocaya. 2017. Stem end chip and fry color disorders. Presentation at the University of Maine Cooperative Extension Potato Conference, Caribou, ME. (January 19, 2017). Porter, G.A., P. Ocaya, and T.Mills 2017. Maine potato breeding program trade show booth. University of Maine Cooperative Extension Potato Conference, Caribou, ME. (January 18 and 19, 2017). Porter, G.A., P. Ocaya, and T.Mills 2017. Maine potato breeding program. US Potato Board and National Potato Council, North American Potato EXPO, San Francisco, CA, (January 4 to 6, 2017). Exhibit prepared by G. Porter; ME Potato staff attended and answered questions. Yencho, G.C. and M.E. Clough. 2017. Field Research Tours at Plymouth Agricultural Research and Extension Center, Plymouth, NC (two per year, dates not available). Yencho, G.C. and M.E. Clough. 2017. Stakeholder and Industry Research Discussions and Tours at Plymouth Agricultural Research and Extension Center, Plymouth, NC and NCSU Campus, Raleigh, NC (several per year, dates not available). Zotarelli, L. University of Florida - Hastings Agricultural Education Center, Stakeholder Advisory Committee Meeting: Potato Research Update (July 2017) Zotarelli, L. Florida Seed Association: Papa Criolla Project Update (June 2017) Zotarelli, L. Annual Twilight Potato School - Hastings Agricultural Education Center, New Potato Variety Demonstration, Promising Varieties for Chipping and Table Markets in Florida (May 2017) Zotarelli, L. Florida Farm Bureau, Agricultural Tour, New Potato Varieties (March 2017) Zotarelli, L. Potato Research Update, St. Johns County Growers (September 2016) What do you plan to do during the next reporting period to accomplish the goals?We plan to continue our potato breeding and variety development efforts along similar lines, including commercial trials of the most advanced potato clones from the project. We will continue to work with constituents ranging from individual growers to state grower groups and processors to improve the effectiveness of the project. We will continue to update and improve the project database and website.
Impacts
What was accomplished under these goals?
Research activities took place in seven states (FL, ME, NC, NY, OH, PA and VA) during 2016 and involved collaborations with the USDA-ARS Potato Breeding Programs in MD, ID and WI, as well as the Potatoes USA National Chip and Fry Processor's Trials. Potato breeding for improved quality and pest resistance continued in ME, NY, NC, and USDA-ARS during 2016 and 2017. During 2016, our programs generated 661 new tetraploid families (546,750 seeds) from crosses using parents with desirable quality, adaptation, and/or pest resistance traits. USDA-ARS Beltsville, MD also generated 56 crosses with diploids (2x or 4x-2x, 49,500 seeds) for use in germplasm improvement. First-year field selections were conducted using progeny (96,416) from earlier crosses. This resulted in the selection of 4,517 new clones for further evaluation during 2017 under the diverse abiotic and biotic stress conditions of the eastern U.S. and beyond. Multi-site evaluation of early-generation clones speeds the breeding and selection process and enables us to identify both broadly- and specifically-adapted clones. Candidate potato varieties were evaluated during 2016 for yield, quality, stress tolerance, and pest resistance in replicated trials in FL, ME, NC, NY, OH, PA, and VA. The most promising were advanced for further testing, seed production, and commercial evaluation during 2017. Advanced clones from our project were introduced to growers through field days, presentations, publications, web sites, and direct contact with stakeholders at state, regional and national potato industry meetings. The most promising advanced clones enter commercial trials to further explore their potential for important markets, such as chip processing, French fry production, fresh market, and specialty use. As a case for commercialization is built, seed stocks of these promising varieties are multiplied by commercial seed potato growers. Twelve clones from the eastern states have been in the Potatoes USA fast-track chip program since 2011, and the programs supported under this grant have annually contributed up to 40% of clones in the Potatoes USA National Chip Processors Trials (NCPT). The project places special emphasis on breeding and selecting clones with resistance to late blight, early blight, scab, golden nematode races Ro1 and Ro2, and potato virus Y (PVY). Fifty-eight advanced breeding clones in the ME program showed high levels of late blight resistance during 2016. Six of 31 advanced clones were resistant to moderately resistant to late blight in 2016 PA trials. Twelve of 31 advanced clones were resistant to moderately resistant to early blight. Eight of 32 advanced clones were resistant to moderately resistant to powdery scab. Disease resistance screening trials continue to be conducted during 2017. Marker-assisted selection is being used to speed the development of PVY and golden nematode resistant varieties. All NY round whites, and most of the NY colored crosses, segregate for resistance to golden nematode Ro1 or Ro2, as do many crosses from the ME, NC and USDA programs. AF4648-2, a promising white-skinned variety that is being commercially evaluated has resistance to scab, late blight, PVY, pink rot, and golden nematode. Disease resistant varieties generated by this project have the potential to greatly reduce growers' losses to devastating diseases such as late blight and can also reduce production costs. Golden nematode, a serious pest found in NY and in other countries, cannot be effectively managed without resistant varieties. Research on the genetics of internal heat necrosis (IHN) and the development of clones and populations with improved resistance to this tuber defect continued. The test site in NC provides good environmental conditions that all four breeding programs utilize in selecting for IHN resistance. In 2016, NC screened a total of 699 early generation clones. Of these 240 were from NC, 251 from ME, 77 from the USDA-ARS Beltsville, and 131 clones were from the NCPT (with clones from CO, ME, MI, NC, NY, OR, TX, USDA-MD and WI). The NC mapping population B2721 was genotyped with the Infinium® 8303 SNP array developed by the USDA-NIFA SolCAP project and quantitative trait loci (QTL) were detected for IHN on chromosomes 1, 5, 9, and 12. Genetic effect models explained roughly 28 and 25% of the variation for IHN incidence and severity, respectively and we have tentatively identified several candidate markers for IHN susceptibility. The B2721 population has also been phenotyped for chip color, specific gravity, and scab reaction. QTL analyses of these traits is underway. Because sufficient funding is not available to carry the QTL studies forward within this USDA-NIFA program, we are looking for additional support to advance this research. NCSU hosts, curates, and continually improves the project website and web-based databases using input from the project participants (https://potatoes.ncsu.edu/Potato.html). Data from all of our replicated variety trials is entered into this database. The site provides current contact information for project cooperators and recent research reports, as well as access to our regional variety database and a dynamic summary generator for all released varieties. In 2016 a total of 5,032 unique visitors were recorded averaging 420 per month. The top five countries visiting the site for 2016 were the US (54%), Japan (3.4%), Great Britain (3.4%), France (3.2%) and South Korea (3.2%).
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Christensen, C.T., L. Zotarelli, K.G. Haynes, J. Colee. 2017. Rooting characteristics of Solanum chacoense and Solanum tuberosum in vitro. American Journal of Potato Research. DOI 10.1007/s12230-017-9597-x
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
De Jong, W.S., D.E. Halseth, R.L. Plaisted, X. Wang, K.L. Perry, K.M. Paddock, M. Falise, B.J. Christ, and G.A. Porter. 2017. Lamoka, a variety with excellent chip color out of cold storage and resistance to the golden cyst nematode. American Journal of Potato Research 94: 148-152.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Krupek, F.S., C.T. Christensen, L. Zotarelli, C.E. Barrett. 2017. Seedpiece spacing for spring chipping potato cultivars in Florida. HortScience. 52(2):230-235
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Oluwatosin, E.A., S.D. Johanningsmeier, V-D. Truong, and G. C. Yencho. 2016. Development and validation of a near-infrared spectroscopy method for the prediction of acrylamide content in french-fried potato. J. Agric. Food Chem. 64:1850?1860.
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Peterson B.A., S.H. Holt, F.P.E. Laimbeer, A.G. Doulis, J. Coombs, D.S. Douches, M.A. Hardigan, C.R. Buell, R.E. Veilleux. 2016. Self-fertility in a cultivated diploid potato population examined with the Infinium 8303 Potato Single-Nucleotide Polymorphism Array. The Plant Genome 9:1-13
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Qu X.S., M.W. Peck, C.E. Moore, and B.J. Christ. 2017. Field evaluation of potato cultivars and breeding lines for resistance to early blight in Pennsylvania, 2016. Plant Disease Management Reports 11: V012.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Endelman, J.B., C.A. Schmitz Carley, D.S. Douches, J.J. Coombs, B. Bizimungu, W.S. De Jong, K.G. Haynes, D.G. Holm, J.C. Miller, R.G. Novy, J.P. Palta, D.L. Parish, G.A. Porter, V.R. Sathuvalli, A.L. Thompson, and G. C. Yencho. 2017. Pedigree reconstruction with genome-wide markers in potato. American Journal of Potato Research DOI 10.1007/s12230-016-9556-y.
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Jansky S.H., A.O. Charkowski, D.S. Douches, G. Gusmini, C. Richael, P.C. Bethke, D.M. Spooner, R.G. Novy, H. De Jong, W.S. De Jong, J.B. Bamberg, A.L. Thompson, B. Bizimungu, D.G. Holm, C.R. Brown, K.G. Haynes, V.R. Sathuvalli, R.E. Veilleux, J.C. Miller, J.M. Bradeen, J.M. Jiang. 2016 Reinventing Potato as a Diploid Inbred LineBased Crop. Crop Science 56: 1-11.
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Kolech S.A., D. Halseth, P. Perry, D. Wolfe, D.S. Douches, J. Coombs, W. De Jong. 2016. Genetic Diversity and Relationship of Ethiopian Potato Varieties to Germplasm from North America, Europe and the International Potato Center. American Journal of Potato Research 93: 609-613. doi:10.1007/s12230-016-9543-3
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Qu X.S., M.W. Peck, C.E. Moore, and B.J. Christ. 2017. Field evaluation of potato cultivars and breeding lines for resistance to late blight in Pennsylvania, 2016. Plant Disease Management Reports 11: V035.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Qu X.S., M.W. Peck, C.E. Moore, and B.J. Christ. 2017. Field evaluation of potato cultivars and breeding lines for resistance to powdery scab in Pennsylvania, 2016. Plant Disease Management Reports 11: V052.
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Rosyara U.R., P.C. Bethke, W.S. De Jong, S.H. Jansky, D.S. Douches, and J.B. Endelman. 2016. Software for genome-wide association studies in autopolyploids and its application to potato. The Plant Genome 9 (2), doi:10.3835/plantgenome2015.08.0073.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Schumann, M.J., Z-B Zeng, M.E. Clough, G. C. Yencho. 2017. Linkage map construction and QTL analysis for internal heat necrosis in autotetraploid potato. Theor. Appl. Gen. DOI: 10.1007/s00122-017-2941-1.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Wang, Y., L.B. Snodgrass, P.C. Bethke, A.J. Bussan, D.G. Holm, R.G. Novy, M.J. Pavek, G.A. Porter, C.J. Rosen, V.R. Sathuvalli, A.L. Thompson, M.T. Thornton and J.B. Endelman. 2017. Reliability of measurement and genotype x environment interaction for potato specific gravity. Crop Sci DOI: 10.2135cropsci2016.12.0976.
- Type:
Other
Status:
Awaiting Publication
Year Published:
2017
Citation:
Porter*, G.A., P. Ocaya, and T. Mills. 2016. Caribou Russet: a new russet potato variety for fresh market and fry processing. Amer. J. Potato Res. 94:In press (abst).
- Type:
Other
Status:
Awaiting Publication
Year Published:
2017
Citation:
Porter*, G.A. and P. Ocaya. 2016. Processing quality of advanced fry processing varieties versus Russet Burbank in SCRI agronomic trials, Maine 2013-2015. Amer. J. Potato Res. 94:In press (abst).
- Type:
Other
Status:
Awaiting Publication
Year Published:
2017
Citation:
Porter*, G.A., P. Ocaya, L. Brian Perkins, and M.E. Camire. 2016. Nitrogen effects on processing quality of Russet Burbank, Easton, and AF4296-3 potato varieties. Amer. J. Potato Res. 94:In press (abst).
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Arancibia, R. 2016. Virginia Potato Variety Trial Report - 2016.
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Kleinhenz, M.D., J.B. Moyseenko, S.D. Walker, and B. Williams. 2016. Ohio Potato Germplasm Evaluation Report - 2016, 17 pp. Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Porter, G.A., P. Ocaya, B. MacFarline, and B. Plummer. 2016. Potato variety trial results in Maine, 2016 growing season. SFA Research Report (posted on www and distributed to industry), 2016-01, 42 pp. Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Porter, G.A., P. Ocaya, and T. Mills. 2016. Maine potato breeding program annual report, 2016 growing season. SFA Research Report (posted on www and distributed to industry), 20 pp. Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
De Jong, W.S., R. Plaisted, D.E. Halseth, and S. Menasha. 2016. New York Potato Variety Trial and Breeding Report - 2016, 38 pp.
- Type:
Theses/Dissertations
Status:
Published
Year Published:
2017
Citation:
Jiang, H. 2017. Biological and Ecological Behaviors of Phytophthora erythroseptica Mediated by Chemical Signals. Ph.D. Thesis, University of Maine, 150 pp
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Qu, X. and B.J. Christ. 2017. Pennsylvania Potato Research Report and Supplemental Report - 2016, 56 pp. Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Yencho, G.C. and M.E. Clough. 2016. NC Potato Variety Trial and Breeding Report - 2016, 44pp. Also available at https://potatoes.ncsu.edu/Potato.html
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Yencho, G.C. and M.E. Clough. 2016. NE1231 NC Potato Variety Trial Report - 2016. 11 pp. Also available at https://potatoes.ncsu.edu/NEReports.html
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Zotarelli, L. 2016. Florida Potato Variety Trial Report - 2016, 113 pp. Also available at http://hos.ufl.edu/extension/variety-trials/variety-trial-crops/potatoes
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