Brief Summary of Minutes of Annual Meeting

This multidisciplinary, regional project utilizes the potato breeding and variety development expertise in the eastern US to breed, select, and develop new potato varieties for growers at all scales of production.  It encourages the pooling of regional resources and promotes increased communication within the potato community located in the northeast, mid-Atlantic and southeast. The overarching goal of this project is to identify new potato varieties for use in the Northeastern, mid-Atlantic and southeast US, which will contribute to a more sustainable and profitable potato industry.

Even after a variety has been released, it can take many years until it becomes clear how well the variety has met industry needs.  Looking back at varieties released by this project over the past ten years, it is clear that the following have had especially significant impact (each ranking among the top 100 most widely grown varieties in the US in 2023).  Caribou Russet, released by ME in 2015 for fry processing and russet fresh market, has been rapidly adopted due to high yields, scab and verticillium resistance, and excellent consumer quality.  Certified seed acreage rose to 1896 acres, making it the 10^th most widely grown variety in 2023.  Hamlin Russet was released by ME during 2021 for early fry processing and russet fresh market and is moderately resistant to common scab; seed acreage in 2023 rose to 392 acres (ranks 42nd in the US).  Lady Liberty, a chipping variety released by NY in 2018, is resistant to the golden nematode and PVY; at 472 acres of seed, it ranked 36^th in 2023.  Bliss, another NY chipping variety, was released in early 2023 and currently ranks 76^th (100 acres of seed).

The NE2231 project and its predecessors have: 1) allowed potato breeders to share breeding materials and trial results; 2) facilitated potato germplasm selection and evaluation under diverse environmental conditions in the eastern US; 3) given research and extension personnel the opportunity to evaluate new selections from several potato breeding programs; 4) facilitated regional germplasm screening for specific characteristics at a single location (e.g. early blight, late blight, and common scab resistance in PA; scab and virus resistance in ME; nematode resistance in NY); 5) developed variety profiles and cultural recommendations for potato selections that enter commercial production; and 6) resulted in the release and adoption of many important US potato cultivars. 

Potato breeding for improved quality, stress tolerance, and pest resistance was conducted in FL, ME, NY, and NC during 2023.  During the year, our programs collectively generated 972 new tetraploid families (767,228 seeds) from crosses using parents with desirable quality, utilization, adaptation, and/or pest resistance traits. Progeny (74,438) from earlier crosses were field selected resulting in 3017 clones that will be further evaluated during 2024 under conditions with diverse abiotic and biotic stress in the eastern U.S. and beyond.  Our breeding programs focus on specific pest, climactic stress, and marketing issues, so that regional resources are used efficiently.  For example, ME is the only breeding program in the region which focuses on russets and long whites for processing.  In terms of pests and diseases, ME emphasizes research on late blight, pink rot, potato virus Y (PVY), soft rot, and scab resistance.  NY focuses on white-skinned chipping crosses, but also selects fresh-market clones of varying skin and flesh colors and emphasizes resistance to golden nematode, scab, and PVY, but also crosses for late blight, and white cyst nematode.

Our potato breeding programs are focused on developing plant materials with greater resilience to heat stress and climate change with our NC and FL programs particularly suited to developing heat-stress-tolerant germplasm.  NC’s potato breeding program focuses on heat-stress tolerance, PVY resistance, and resistance to internal heat necrosis.  For the fresh market, NC’s priority is finding a replacement for Dark Red Norland because of its low yield and variable skin color in stressful SE environments.   During 2021, FL initiated a new potato breeding program that will further strengthen our region’s efforts to create heat-tolerant potato germplasm with adaptation to the SE.  In 2023, 115 FL crosses resulted in 33,390 true seed for future selection and variety development.  FL evaluated 7,590 first-year clones during 2023, selecting 70 for continued evaluation in 2024. 

Disease screening is an important part of potato variety development.  Disease-resistant varieties generated by this project have the potential to greatly reduce growers’ losses to devastating diseases such as late blight, pink rot, and PVY and can also reduce agricultural chemical use and production costs.  Screening trials in 2023 in PA evaluated our NE1731 and advanced breeding clones for early blight (52 clones), late blight (234 clones), and common scab resistance (141 clones) tolerance. NY, NC and ME all made extensive use of molecular markers in 2023 to increase the frequency of PVY resistance in their programs.

To improve potatoes for resistance to heat stress, in 2023 FL planted, for a second year, a trial to evaluate heat tolerance in a diverse population. A severe hailstorm damaged the field and hindered data collection; the trial will be repeated in 2024. The first year of data revealed cultivars that performed better than commercial checks under high heat conditions. Those cultivars were included in FL crossing blocks to generate new populations for future evaluation.  To begin to understand the genetics of nitrogen uptake efficiency (NUE), the same population evaluated for heat tolerance was also used to evaluate genotypic response to varying amounts of applied nitrogen.  As expected, genotype by environment interaction was observed, and the experiment will be repeated in 2024.

Field trials were conducted from ME to FL to help select promising potato clones that are worthy of commercialization.  Advanced clones from our project were introduced to growers through field days, presentations, publications, web sites, and direct contact with stakeholders.  Nine advanced clones were entered into tissue culture programs during 2023 leading to commercial seed production for continued research and development. Several advanced clones and newly released varieties are currently being evaluated in on-farm commercial-scale trials for their potential use across the US.

Each eastern breeding program submits its most promising advanced clones to the NE1731 regional project’s seed nursery in ME.  During 2023, the project distributed seed potatoes for 12 regional potato variety trials conducted in seven states and two Canadian provinces.  Eleven standard varieties and 39 experimental clones were tested for yield, tuber quality, and pest resistance. All trials were grown using standard commercial cultural practices. Marketable yield, tuber quality and appearance, maturity, storage life and processing potential were evaluated and compared to commercial standards.  The diverse environmental conditions present in the eastern U.S. allow us to quickly screen potato clones for stress sensitivity as well as for adaptation and suitability to specific growing areas and markets.  Multi-site evaluation of early-generation clones speeds the breeding and selection process and enables us to identify both broadly- and specifically-adapted clones that will be useful to the U.S. potato industry and potato growers at all scales of production.  Similar variety trials will be conducted during 2024 to further select clones to advance to commercial trials.  Each regional trial site reports results to their local stakeholders and submits their data to the project website coordinator located in NC.

Our project web site and searchable database continues to grow in size and utility.  The database has now migrated to the more powerful and user-friendly Variety Data Management (VDM) platform (https://neproject.medius.re/).  The web site provides current contact information for project cooperators and recent research reports, as well as access to our searchable regional variety database and a dynamic summary generator for all released varieties. This new database can provide side-by-side comparative data for potato clones and varieties as well as advanced analytical tools. It is a valuable tool for researchers, Extension, and stakeholders.

New varieties and descriptions.

Bliss, formerly evaluated as NY163, was named and released in early 2023.  Mid-late season chipstock, its principal strength is exceptionally light fry color out of cold storage.  Yields similar to Atlantic, specific gravity about 0.005 less than Atlantic. Tubers are round to oblong with lightly netted skin. Moderate resistance to common scab. Resistant to race Ro1 of the golden nematode.

Advanced Experimental Potato Clones Showing Particular Promise in 2023 include:

NDAF113484B-1 (ND060570B-1R x ND8555-8R), an attractive, mid-season, red with bright skin that holds its color well in storage. It has white flesh and mid-season maturity with moderate scab, shatter, and blackspot resistance. Tuber size and yields are similar to those of Dark Red Norland. It has had low hollow heart incidence but has had internal heat necrosis problems in several southern and mid-Atlantic trials.

AF5071-2 (AF3011-29 x AF3051-2), a late maturing, russet with good fry quality, fair tuber appearance, and high yields. Specific gravity is higher than Russet Burbank and fry color from storage has been good. Fry color uniformity is very good. It is moderately susceptible to scab and hollow heart, but has moderate verticillium, blackspot, and shatter resistance. It was a strong performer in the Potatoes USA National Fry Processing Trials.

AF5406-7 (AF3317-15 x Silverton Russet), a late-maturing russet with good yields, medium specific gravity, large tubers, and resistance to late blight, scab, blackspot, shatter, verticillium, fusarium, and pink rot. It will most likely be useful for processing market but may also work for fresh market. It was a strong performer in the Potatoes USA National Fry Processing Trials.

AF5521-1 (AF4320-7 x AF2291-10), a dual-purpose russet with large, long-blocky tubers, medium-late maturity, high yields, high gravity, excellent fry color, and outstanding fry color uniformity. It is resistant to golden nematode and moderately resistant to early blight, shatter, and blackspot. It was a strong performer in the Potatoes USA National Fry Processing Trials.

AF5707-1 (A93575-4 x Dakota Trailblazer) dual-purpose russet, long tubers, medium-late maturity, very high yields, moderate gravity, good tuber appearance, good fry color and uniformity, moderate resistance to soft rot, blackspot, and shatter.

AF5819-2 (Dakota Crisp x AF4552-5), a medium-maturing fresh market clone with bright skin, round tubers, high yields, low specific gravity, moderate scab resistance, medium-sized tubers, and good internal quality. It also has pink rot, soft rot, and shatter resistance.

AF6200-4 (Sebec x Tundra) Medium-late maturing, high yields, slightly netted skin with fair tuber appearance, moderate specific gravity, good chip color, moderate resistance to VW, fusarium, soft rot, and shatter. Performed well in southern locations in the Potatoes USA SNAC Chip Trial.

AF6671-10 (NY148 x AF5549-1) Medium maturing, very high yields, high specific gravity, moderate resistant to shatter, good chip color, fair tuber appearance.

AF6206-3 (AF4386-16 x Lamoka), a medium-late-maturing chipper with high yields, good chip color, low internal defects incidence (bad performance only ME 2023 season), and high specific gravity. It has shatter bruise tolerance, moderate scab resistance, and golden nematode resistance.

AF6206-5 (AF4386-16 x Lamoka) a medium-late-maturing chipping clone with high yields, low internal defects incidence, excellent chip color, and high specific gravity. It has moderate external defects incidence being especially prone to growth cracks, but low internal defects incidence. It has bruise tolerance, moderate scab resistance, and golden nematode resistance.

NC470-3 (Marcy X NC182-5) – Selected in 2012 this chipping clone is for fresh out of field chipping. Vines tend to be vigorous, mature late, show little to no ozone damage, exhibit resistance to early blight, and have an upright to spreading growth habit. Tubers are mostly oblong, medium to large in size, with brown netted skin, yields have averaged 106% of Atlantic, gravities are +/- 4 points of Atlantic and do not express internal heat necrosis. Hollow heart incidence is similar to Atlantic at 2% across all yield trials. This clone is also resistant to PVY (Ryadg marker) and has some tolerance to common scab and moderate resistance to late blight. Has been in NCPT trials and entering SNAC trials in 2024.

NC821-30 (NC41-1 X NC182-5) – Selected in 2015 this chipping clone is for fresh out of field chipping. Vines are vigorous and late maturing with a spreading growth habit. Tubers are mostly round, medium in size with very few if any oversize. Skins are tan and moderately smooth. Yields have averaged 91% of Atlantic gravities are + 4 to 6 points higher than Atlantic and do not express internal heat necrosis. Hollow heart and brown center incidence is less than Atlantic across all yield trials. This clone is also resistant to PVY (Ryadg marker), Golden nematode (H1 marker) and has some tolerance to early blight and late blight. Has been in EGSS, NCPT and is preparing for entry into SNAC in the coming seasons.

NY165 (NY148 x F48-4) is a mid-season, moderate to high specific gravity, chip stock clone.  It has round to oblong tubers with slightly netted skin. Yields have been high in many NY trials; however, specific gravity may not be high enough for commercialization outside the northeast.  Chip color from storage is very good.  It has moderate scab resistance and is resistant to golden nematode (Ro1) and PVY. 

NY174 (NY148 x E48-2) is a full-season, moderate to high specific gravity, chip stock clone.  It has round to oblong tubers with slightly netted skin. Yields have been high in many NY trials averaging 122% of Atlantic (11 trials).  Low levels of internal and external defects have been observed to date.   Chip color from storage is very good.  It has moderate scab resistance and is resistant to golden nematode (Ro1) and PVY.  It was tested in 2023 Potatoes USA National SNAC chipping trials throughout the US and will be tested again at Northern SNAC trial sites in 2024.

NY177 (NY148 x E48-2) is a mid- to late-season, high specific gravity, chip stock clone.  It has round to oblong tubers with slightly netted skin. Yields have been high in many NY trials averaging 115% of Atlantic (14 trials).  Low levels of internal and external defects have been observed to date.   Chip color from storage is very good.  It has moderate scab resistance and is resistant to golden nematode (Ro1) and PVY.  It was tested in 2023 Potatoes USA National SNAC chipping trials throughout the US and will be tested again at all sites in 2024.

Short-term Outcomes:

1.  Eastern potato growers need new potato varieties which are highly productive and less susceptible to stress, diseases, and insects than current varieties. This regional potato breeding and trial network produces new potato varieties and evaluates their potential to serve fresh, processing, and specialty potato markets in the East.  These new varieties will improve grower profitability by increasing yields, enhancing market quality, and/or decreasing costs associated with pests.   Farm gates receipts for Eastern potatoes exceed $460M per year.  Potatoes can cost more than $3000 per acre to produce and devastating diseases such as pink rot and/or late blight can totally destroy the crop.  Resistant varieties greatly decrease the risk of losses and, in the case of late blight resistance and plant viruses, can reduce production costs by reducing the number of chemical sprays applied to protect the crop.  Several areas in NY could not produce potatoes without the golden nematode resistant varieties developed as part of this and other research projects.  Potato virus Y (PVY) has become increasingly difficult to control and seed producers have lost millions of dollars to this pest in recent years.  All of our breeding programs develop new plant materials with resistance or tolerance to one or more of these important plant pests.  As noted above, several of our advanced selections that are in or heading toward commercialization trials are resistant to one or more important pests.  Internal heat necrosis (IHN) is a common stress-related defect in the mid-Atlantic and southeastern U.S.  While several of our trial sites help our programs screen for this defect, NC provides an excellent screening site for selecting more stress-tolerate potato varieties.  In 2023 NC screened 284 clones from other eastern potato breeding programs to assess heat tolerance and adaptation to the southeast.

2.  Genomic selection holds much promise to accelerate breeding progress. NC phenotyped and genotyped (with assistance from FL) 600 second year clones to generate breeding values for specific gravity and marketable yield; this data was used to inform selection of third year clones. ME genotyped another 188 third year clones, bringing their total training population up to 768 genotyped and phenotyped clones. FL genotyped a population that includes the chipping and fresh market parents of their nascent breeding program at 22,000 SNP loci using the Flex-Seq platform. Preliminary training of their genomic selection models resulted in prediction accuracies of 0.58 for marketable yield and 0.44 for specific gravity.

3. Field trials were conducted from ME to FL to help select promising potato clones that are worthy of commercialization. Advanced clones from our project were introduced to growers through field days, presentations, publications, web sites, and direct contact with stakeholders.  Over the years, the eastern regional project has resulted in the release of many commercially important potato varieties. Just in the past decade our releases include the following ‘top 100’ cultivars: Caribou Russet, released by ME in 2015 for fry processing and russet fresh market, was the 10^th most widely grown variety in 2023;  Lady Liberty, a chipping variety released by NY in 2018, ranked 36^th in 2023;  Hamlin Russet, released by ME during 2021 for early fry processing and russet fresh market, currently ranks 42^nd;  Bliss, another NY chipping variety, was released in early 2023 and currently ranks 76^th.  Older and still widely grown varieties developed by this project include: Lamoka, the most widely grown cold-storage chipping variety in the US (released by NY in 2011; ranks 7^th); Waneta, another NY cold-storage processing variety (released in 2011, ranks 14^th); Lehigh, a yellow fleshed cultivar (released by NY in 2007, ranks 47^th).  Historical potato seed acreage data is available at https://potatoassociation.org/seed-acres-reports/

4. 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 PVY. Advanced clones and recent variety releases from our programs typically have resistance to several important potato pests and/or physiological disorders. As an example, Caribou Russet has resistance to verticillium wilt, common scab, soft rot, and powdery scab as well as excellent bruise resistance. Cornell releases typically have golden nematode resistance and scab tolerance, plus many recent releases also have resistance to PVY and late blight. Brodie (NY140) was released during 2018 and is the first U.S. cultivar with resistance to golden nematode race Ro2 and it is also resistant to race Ro1. Ro1 is the long-time golden nematode pest in NY, while Ro2 is a newer race that has become increasingly difficult to manage.  Golden nematode cannot be effectively managed without resistant varieties.  Marker-assisted selection for PVY and golden nematode resistance is now an integral part of our breeding programs. Disease screening trials in PA, evaluated varieties and advanced breeding clones for early blight, late blight, and common scab resistance. ME also conducts screening studies for susceptibility to important potato diseases (e.g. verticillium wilt, common scab, soft rot, pink rot, fusarium, PVY, etc.).  NY screens all of its advanced clones for common scab (field screening) and golden nematode (bioassay) resistance.  These data are used to select resistant varieties/breeding clones.  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.

5. Our project web site and searchable database continues to grow in size and utility. The database has now migrated to the more powerful, user-friendly Variety Data Management (VDM) platform (https://neproject.medius.re/).  The web site provides current contact information for project cooperators and recent research reports, as well as access to our searchable regional variety database and a dynamic summary generator for all released varieties. This new database can provide side-by-side comparative data for potato clones and varieties as well as advanced analytical tools which help stakeholders and researchers determine which advanced clones are worthy of commercialization trials.

Refereed Journal Papers

Chen Zhou, Victor G. Bucklew, Perry S. Edwards, Chenji Zhang, Jinkai Yang, Philip J. Ryan, David P. Hughes, Xinshun Qu and Zhiwen Liu. 2023.  Portable Diffuse Reflectance Spectroscopy of Potato Leaves for Pre-Symptomatic Detection of Late Blight Disease.  Applied Spectroscopy 77: 491–499.

da Silva, A.L.B.R., L. Zotarelli, M.D. Dukes, S. Asseng, E. van Santen. 2023. Nitrogen fertilizer strategies for potato under different irrigation methods. Agricultural Water Management, 283:108312. https://doi.org/10.1016/j.agwat.2023.108312

De Jong WS, Halseth DE, Plaisted RL, Wang X, Perry KL, Qu X, Paddock KM, Falise M, Christ BJ, and Porter GA (2023) Lehigh, a Variety with Yellow Flesh and Resistance to the Golden Cyst Nematode and Common Scab.  American Journal of Potato Research 100:163–168.  https://doi.org/10.1007/s12230-022-09900-4

Krupek, F., L. Zotarelli, S.A. Sargent, D.L. Rowland, P. Dittmar. 2022. Vine desiccation timing strategies for enhanced harvest and storage quality of early-maturing potato cultivars. Potato Research. https://doi.org/10.1007/s11540-022-09550-3

Levina AV, Hoekenga OA, Gordin M, Broeckling C, and De Jong WS (2023) Applying network and genetic analysis to the potato metabolome.  Frontiers in Plant Science 141:108351.  doi 10.3389/fpls.2023.1108351

Martins, V.S., M.H.M.L. Andrade, L.N. Padua, L.A. Miguel, C.C. Fernandes Filho, M.L. Guedes, J.A. Nunes, L. Hoffmann Jr., L. Zotarelli, M. Resende, P.C.S. Carneiro, T.S. Marçal. 2023. Evaluation the impact of modeling the family effect for clonal selection in potato breeding programs. Frontiers in Plant Science. Sec. Plant Breeding. 14:1253706. http://doi.org/10.3389/fpls.2023.1253706  

Published Abstracts

Dias, H. B., R. Gupta, A.L.B.R. da Silva, L. Zotarelli, S. Asseng, C.H. Porter, G. Hoogenboom. 2023. Evaluating and applying the DSSAT-CSM-Substor model to simulate water and nitrogen responses in spring potato in Northeast Florida [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/153900

Gupta, R., H.B. Dias,  A.L.B.R. da Silva, L. Zotarelli, C.H. Porter, G. Hoogenboom. 2023. Evaluating the DSSAT-CSM-Substor model in subirrigated potato-agroecosystem under varied nitrogen fertilizer rates and application timings [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/151749

Hoffmann Jr.,L., M.H.M.L. Andrade, P. Collins, C. Yencho, M.F.R. Resende, L. Zotarelli. 2023. Screening heat tolerance of potatoes cultivars and adaptation to Florida environment for future breeding efforts. Proceedings of the Potato Association of America Annual Meeting. Charlottetown, Canada. 101. (in press).

Pesantes L.G., L. Zotarelli, E. van Santen; X. Zhao, G. Maltais-Landry. 2023. Pre-planting and supplementary in-season liquid phosphorus fertilization for Potato. Proceedings of the Potato Association of America Annual Meeting. Charlottetown, Canada. 101. (in press).

Sharma, A., S.K. Sidhu, W. Griffin, L. Zotarelli, L. Sharma. 2023. Sulfur interaction with nitrogen and phosphorus for nutrient uptake efficiency in soil [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150767

Sidhu, S.K., F.R. Bortolozo, A. Sharma, N. Kaur, A.K. Sandhu, M. Singh,  W. Griffin, L. Zotarelli, L. Sharma. 2023. Balancing crop yield and soil quality by optimizing potassium fertilizer application for sustainable production [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150325

Sidhu, S., F. Bortolozo, A. Sharma, N. Kaur, L. Zotarelli, L. Sharma. 2023. Assessing different potassium sources and rates for improving potato tuber quality. Abstract of American Society of Horticultural Sciences Annual Meeting. HortScience. (in press).

Sidhu, S.K., A. Sharma, D.A.H.D.S. Leitao, H. Shellenbarger, N. Kaur, A.K.  Sandhu, L. Zotarelli, L. Sharma.  2023. Sensor-Based potassium management and yield prediction in potato [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/150885

Singh, R., S. Kaur, S.K. Sidhu, L. Sharma, R. Singh, V.G. Kakani, L. Zotarelli, A. Sharma, S. Singh. 2023. Nitrogen uptake and yield prediction in potatoes using hyperspectral data and machine learning [Abstract]. ASA, CSSA, SSSA International Annual Meeting, St. Louis, MO. https://scisoc.confex.com/scisoc/2023am/meetingapp.cgi/Paper/151071

Other Publications

De Jong, W.S.  2022.  Cornell potato breeding program annual report (Potato Show&Tell).  25 pp.

Clough, M and GC Yencho.  2022. North Carolina Potato Variety Trial and Breeding Report. 55p

Porter, G.A., P. Ocaya, B. MacFarline, and B. Plummer. 2022. Potato variety trial results in Maine, 2023 growing season. SFA Research Report (posted on www and distributed to industry), 2022-01, 35 pp. Also available at https://neproject.medius.re

Porter, G.A. and P. Ocaya. 2023. Progress report on advanced potato variety testing and potato PVY research - 2022 Growing Season. Report to the Maine Potato Board, February 2023, 9 pp.

Porter, G.A. and P. Ocaya. 2023. Progress report on Maine potato breeding program – 2022 growing season. Report to the Maine Potato Board, February 2023, 17 pp.

Qu, X. Pennsylvania Potato Research Report, 2022 (https://plantpath.psu.edu/research/areas/plant-disease-management/penn-state-potato-research-program/pennsylvania-potato-research-reports).

Presentations:

Andrade, M. H. M. L.  National Fry Processing Trials, Potato Variety Trials, and Potato Breeding.  2023 Aroostook Research Farm Potato Field Day in Honor of Dr. Greg Porter, August 16, 2023, Presque Isle.

Brown-Donovan K, M. H. M. L. Andrade, E. H. Tan, G. A. Porter. Initial Application of Genomic Selection in the University of Maine Potato Program. Potato Association of America 107th Annual Meeting, July 23-27, 2023, Charlottetown, PEI.

Clough, M and GC Yencho.  NC potato breeding and variety trials. North Carolina Potato Growers annual meeting, Elizabeth City NC, December 8, 2023

Porter, G.A. and P. Ocaya. 2023. Progress report on potato variety trials and PVY research - 2022 Growing Season. Report to the Maine Potato Board, Presque Isle, ME. March 2023.

Porter, G.A., and P. Ocaya. 2023. Progress report on Maine potato breeding program – 2023. Report to the Maine Potato Board, Presque Isle, ME. March 2023.

Qu, X.  Penn State Potato Variety Trials in 2022. Mid-Atlantic Fruit and Vegetable Convention, Hershey, PA, February 2, 2023.

Qu, X.  Potato Trials at Penn State 2023. Potato Twilight Field Meeting, Lehigh County, PA, September 14, 2023.

Zotarelli L., M. Resende. 2023. Advancements toward sustainable management of irrigation, nutrients, and genetic improvement of potatoes in Florida. Brazilian Agricultural Research Corporation (Embrapa) – Clima Temperado, Pelotas, Brazil. 06/12/2023.

Zotarelli L., M. Resende. 2023. Advancements toward sustainable management of irrigation, nutrients, and genetic improvement of potatoes in Florida. International Potato Center, Lima, Peru. 06/14/2023.

Tours, Field Days, Work Shops, Trade Shows:

Clough, M and GC Yencho.  North Carolina Potato Growers annual bus tour and show and tell, May 21, 2023

De Jong, W.  Twilight grower meeting at site of on-farm chip potato trial, 24 August 2023, Arkport, NY

Hoffmann, L., P. Solano, L. Zotarelli, M. Resende. 2023. Potato breeding and heat tolerance. 2023 Handouts for UF/IFAS Potato Feld Day. 1p. 04/14/2023

Qu, X. Potato Variety Demonstration Show, Penn State’s Ag progress Days, Russell E. Larson Agricultural Research Center, Centre County, PA, August 8-10, 2023.

Qu, X. Potato Variety Demonstration Show, Lehigh County, PA, September 14, 2023.

Zotarelli, L., P. Solano, L. Hoffmann, M. Resende. 2023. UF/IFAS Potato Variety Program – Partnership with the private industry. 2023 Handouts for UF/IFAS Potato Feld Day. 1p. 04/14/2023

Oliveira, J.M., L. Zotarelli. 2023. Precision subirrigation using automation of irrigation and drain valves. 2023 Handouts for UF/IFAS Potato Feld Day. 1p. 04/14/2023

Newspaper, Radio, Television Media Articles:

Anonymous. 2023. Potato breeding program launches at UF/IFAS center. Hometown News. May, 25, 2023. https://www.hometownnewsvolusia.com/news/potato-breeding-program-launches-at-uf-ifas-center/article_0b06f20e-fa45-11ed-aa9a-dfb97716feee.html

Rusnak, P. 2023. New potato breeding program on the grow in northeast Florida. Growing Produce. https://www.growingproduce.com/vegetables/potatoes/new-potato-breeding-program-on-the-grow-in-northeast-florida/