Source: UNIV OF WISCONSIN submitted to NRP
DEVELOPMENT OF MULTIPURPOSE POTATO CULTIVARS WITH ENHANCED QUALITY, DISEASE AND PEST RESISTANCE - NORTH CENTRAL REGION 2012
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
COMPLETE
Funding Source
SPECIAL GRANT
Reporting Frequency
Annual
Accession No.
0230819
Grant No.
2012-34141-20074
Cumulative Award Amt.
$367,500.00
Proposal No.
2012-02991
Multistate No.
(N/A)
Project Start Date
Sep 1, 2012
Project End Date
Aug 31, 2014
Grant Year
2012
Program Code
[AN]- Potato Research
Recipient Organization
UNIV OF WISCONSIN
21 N PARK ST STE 6401
MADISON,WI 53715-1218
Performing Department
Horticulture
Non Technical Summary
Potato is the most important vegetable crop in the United States and the North Central (NC) region. Potatoes are used for multiple end uses. Many varieties are planted each year to satisfy consumer demands. Consumers have variable demands such as fresh market round white, reds, russets and specialties (fingerling, yellow flesh, colored potatoes, etc). Processing potatoes are used for French fries, chips, canning or dehydrated products. For these categories the industry is looking for varieties with capacity to store. Some varieties are only suited for marketing off the field; other varieties have the required capacity for short, intermediate or long storage. These categories may have specific and many time exclusive traits that breeders need to select for. All of these traits or potatoes are controlled by the genes they carry. In addition to consumer demands, growers in different regions are challenged with a large number of pest and diseases including early blight, late blight, common scab, early dying, soft, silver scurf, pink rot and leak; several viruses, notably PVY, PVX and PVS. Climate and soil stresses including heat, frost, drought, flooding and low fertility are also factors affecting yield and quality of potatoes. This research supports the interaction of researchers, growers and industry to target real needs of the potato production and processing industry. Our goal is to develop potato varieties needed by growers and industry by targeting our region research priorities defined in collaboration with state growers organization and industry. Our research group has traditionally and recently developed successful varieties for the potato industry. This cooperative NC project makes efficient use of limited resources, infrastructure and breadth of expertise from our NC institutions and diversity in potato genetic resources. This research also serves to prioritize traits of focus, and compliments efforts in the Pacific Northwest, Northeast and Southwest. The NC effort aims to release new varieties to react to stakeholder needs, and reflecting industry goals. This applied research helps NC potato breeders to use genetic technology and research approaches developed by other national and otherwise supported projects that are mostly devoted to create knowledge but not to develop varieties. Genetic and molecular methods will be used in combination with field, greenhouse and other controlled condition experiments to reveal new genes associated with relevant traits such as yield, disease resistance, and traits related to response to climate changes and soil fertility such as resistance to heat and cold stresses and ability to best use available nutrients such as nitrogen. This knowledge will greatly facilitate selection and decrease the time that takes to release new varieties. This research will support interaction of researchers with growers, industry and the production and dissemination of information like factsheets and variety cards through participation in field days, regional and national growers and industry meetings such as winter growers meeting at each state, the Potato Association of America Meeting and the US National Potato Expo.
Animal Health Component
75%
Research Effort Categories
Basic
5%
Applied
75%
Developmental
20%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2011310108040%
2121310108020%
2111310108010%
2031310108010%
2121310104010%
2031310104010%
Knowledge Area
212 - Pathogens and Nematodes Affecting Plants; 211 - Insects, Mites, and Other Arthropods Affecting Plants; 203 - Plant Biological Efficiency and Abiotic Stresses Affecting Plants; 201 - Plant Genome, Genetics, and Genetic Mechanisms;

Subject Of Investigation
1310 - Potato;

Field Of Science
1040 - Molecular biology; 1080 - Genetics;
Goals / Objectives
In the NC region, French fry and frozen processing russets, chip processing, fresh market russets, reds, round whites, and specialty types and storage table market contribute to the utilization of potatoes. Our breeding programs focus on market limiting traits as a foundation in breeding, selection and development of superior cultivars for these specific uses. For example, in the processing sector, low sugar content, high specific gravity, long-term storability, bruise resistance and tuber shape are market limiting traits. Standard varieties satisfying industry standards are used as benchmark for new varieties. Upon this foundation, we incorporate traits to provide durable host plant resistance and improve plant physiological efficiency resulting in enhanced environmental quality and consumer nutritional attributes, as prioritized by our state industries. Our goal is to improve potato varieties though research and breeding efforts, through effectively integrating our selection and breeding with the national trials (NCPT, NFPT, SFA, NRI and Solcap). We exchange elite parents with resistance and quality traits for crossing; identify superior crosses; and share selection strategies. We also incorporate genetic and breeding studies for traits related to climate change. Lastly, we integrate new genomics-based and gene manipulation methods to increase chances of success. The overall goals of this research are to: Objective 1 - Develop potato cultivars and germplasm for release, commercialization, and adoption in the North Central region and beyond. Objective 2 - Evaluate germplasm for traits that are market limiting in the North Central region, focusing on tuber quality, pest resistance, and market limiting traits, as prioritized by the industry in our region. Objective 3 - Conduct breeding studies to improve early generation selection strategies and develop novel technologies to enhance cultivar commercialization. Objective 4 - Combine the phenotypic evaluation of a mapping population with the genotype data generated by SolCAP to identify marker-trait associations for genes with large effects for market-limiting variables. The expected outputs are: Products: New released varieties submitted for disclosure within NC institutions for licensing, and PVP applications. New genetic maps relevant traits; websites where NC varieties are displayed; time lapse videos of the growing season for educational purposes. Factsheets or variety cards, breeding databases, potato breeding research papers published and students graduated in potato breeding and genetics. Activities and Events: Field days: NPPGA Annual Field Day at three sites (NDSU/UMN). Three field days in WI reaching 500 people. Similar field days occur in MI. We provide information to trade journals. Meetings and presentations of research findings at the Potato Association of America meeting (over 200 attendees/year); National Potato Expo (over 1000 registrants), and NCCC-84 Potato Genetics Technical Committee meeting. At the EXPO, our most promising sixteen NCR potato selections and new cultivar releases will be on display along with variety cards for each clone in the industry-supported NCR booth.
Project Methods
This collaborative plan will develop potato cultivars and germplasm for release, commercialization and adoption in the North Central region. To accomplish this, the genetic and genotype x environment variation for yield and quality among commercial potato varieties, advanced and early year from NC clones will be evaluated. Traits evaluated include agronomic parameters such as days to emergence, plant vigor, maturity, disease resistance, yield and grade. Also, tuber external defects (second growth, growth cracks, and tuber bruising) and internal quality (hollow heart, brown center, internal brown spots, and vascular discoloration) and processing traits will be recorded and analyzed. Consumer preference studies will also be performed. All field experiments will be conducted in replicated trials for late years of selections and unreplicated trials in early generations and multiple locations as permitted by seed availability. Disease and pest resistance evaluated in this research in populations and selected clones include: Early blight under natural infestation, late blight under controlled field and growth chamber experiments with inoculation of prevalent strains, Colorado potato bettle in designated field-cage studies, common scab in permanent fields in three locations with high incidence and severity. Similarly, replicated studies will be carried out for aphid, and PVY strains resistance and expression using ELISA tests. Replicated studies will be conducted for storage including Silver scurf, Pink rot, Pythium leak. Studies on the variation of genetic materials to abiotic stresses will be conducted; these include cold stress resistance assays including frost tolerance assays under controlled conditions. In this research, 28 SNP markers previously associated with cold tolerance will be used to screen progenies derived from crosses between S. commersonii (frost tolerant and able to acclimate) and S. cardiophyllum (frost sensitive and unable to acclimate). Identified markers may help introgress frost tolerance into cultivated potatoes. Controlled high heat stress (35 C/day) studies at tuber bulking will be conducted to identify clones with heat stress resistance. Adaptation to low N input will be tested using field and controlled condition experiments to identify clones with better nitrogen use efficiency (NUE). Marker assisted selection studies in early generation will be conducted for PVY resistance using the S. andigena RYSC3 and S. stoloniferum YES-3-3B markers. Markers for PVX, late blight, Verticillium wilt and golden nematode resistance will also be tested. Studies to examine RB gene expression for late blight resistance, elF4E for PVY resistance, Bt genes for CPB, UGPase for low reducing sugar levels, acid invertase silencing for low sugar accumulation, as well as genes for NUE and water use efficiency will be pursued. This research will conduct molecular marker associations to important processing and fresh market traits on five populations previously SNP genotyped by SolCap. A combination of direct selection for highly heritability traits and indirect marker assisted selection for low heritability ones will speed up variety development.

Progress 09/01/12 to 08/31/14

Outputs
Target Audience: The targeted audiences for the outcomes of this project include potato growers, potato processing industry and scientists in the north central region (NCR), as well as the entire United States. The NCR contributes 24% to the total US potato production. These potatoes are used for french fry and chip processing, along with fresh market russets, reds, and specialty local markets. Stakeholders involved in determining state and regional priorities include: the Michigan Potato Industry Commission, the Minnesota Area II Potato Research and Promotion Council, the Northern Plains Potato Growers Association, and the Wisconsin Potato and Vegetable Growers Association. In addition, industry collaborators include: Heartland Farms, Kettle Foods, Barrel O'Fun Snacks, Black Gold Farms, Cavendish Farms, Simplot, Sklarczyk Farms and Russet Processing Exchange (RPE). The efforts are described in the dissemination section. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? The use of Single Nucleotide Polymorphic DNA markers to build maps in key populations such as Atlantic x Superior and Kalkaska x Tundra has provided excellent opportunities to train students and post-Doctoral candidates in molecular breeding of potatoes. In addition, several undergraduate students and other technicians were involved in this project. All the lead scientists, students and post-doctoral candidates involved with the project interacted with the stakeholders at the potato growers meetings. These interactions have enhanced understanding of the industry needs and allowed discussions for future of potato breeding in the US. Attending the scientific meetings and presenting papers at these meetings allowed sharing of results with the scientific community, as well as professional development. The increased interaction with the potato industry and the Fast-track project has strengthened mechanisms of collaboration with the industry. Similarly, it has made breeding clones more visible to stakeholders. These mechanisms of collaboration facilitate lasting links among public researchers at the university, variety development personnel in the industry, and individual growers. How have the results been disseminated to communities of interest? The major findings from our project were shared with the potato growers and potato industry at the Potato Growers winter meetings and the summer field days in ND, MI, MN and WI. We also published information in the trade journals. In addition, presentations of research were made at the various scientific meetings including Potato Association of America, American Society of Horticultural Science and American Society of Agronomy. In addition, we also shared the information with the potato growers and the potato industry at the National Potato Expo (over 1000 registrants) and displayed our most promising new clones and varieties at a booth. What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? Research was conducted as planned to achieve the goals of the project. New elite chip lines such as Nicolet, Accumulator, MSJ126-9Y, MSH228- 6; the processing russets Dakota Trailblazer, ND8229-3, MN15620 (MonDak Gold); MN18747 (low in acrylamide) MN99380- 1Y and MN02616R/Y (fresh market yellow skinned) were tested in on-farm trials to determine their commercial potential. Two new chip varieties, Accumulator and Lelah were named. Accumulator is the highest yielding variety suitable for the chip industry. Lelah has the desired attributes for cold storage. Significant progress was also made in mapping genes for important traits. Relevant progress in mapping several important traits included the development of single nucleotide polymorphic DNA marker maps in several populations. For example, common scab is being mapped in WI and MI, tuber internal defect traits and new markers for candidate genes for cold induced sweetening are being identified in WI. Results from field, on farm and storage trials were disseminated in field days conducted in ten North Central locations. Results from this project were also presented by the North Central breeders and geneticist at several regional and national meetings, such as the Potato Association of America meeting, the North Central Coordinating Committee and Potato Industry meeting. In addition, presentations were made at the American Society of Agronomy meeting. Similarly, results of this project were presented at Michigan Potato Industry Commission Winter Potato Conference, the Northern Plain Potato Growers Association Research & Reporting Conference and the Wisconsin Potato and Vegetable Growers Association, UW-Madison Extension Potato Growers Education Meeting. Seven articles including three variety articles were published in the Northern Valley Grower and the Badger Common'tater trade magazines. Collaboration with other national breeding programs and the potato processing industry was enhanced through participation in the National Chip Processing Trial and National French Fry Processing Trials. From these trials, a number of clones suitable for further evaluation, in terms of commercial value, have been identified. For example, ND8229-3 and W6234 were found to have very low acrylamide contents, a highly desired traits for the potato processing industry. In addition, the USPB-Fast Track program facilitated semi-commercial evaluations of potato chip clones. This project also supported the production of virus free seed and the processing of semi-commercial batches of chips varieties. North Central varieties evaluated under this program included: Lelah, Accumulator, MSL292-A, MSR061-1, B1992-106, MSR148-4, MSL007-B, MSK061-4, W5015-12, MSH228-6, MSM246-B and ND8305-1. An impact of this cooperation is the consolidation of efforts among potato breeders, growers and French fry and chip processing industry. Growers and industry have an increased awareness and interest in new processing chip and russet varieties. Impact of new varieties can best be estimated by the increase of seed acreage for newly released clones. This is a good measure of variety adoption. In 2012, new potato varieties developed in the North Central region had an increase of 17.5% in acreage accepted for seed certification. In 2012, 4,093 acres of these new varieties were planted compared to 3485 acres in 2011. Varieties with the largest increase in seed acreage were Dakota Pearl, released in 2005, MegaChip (2007), Dakota Rose (2000) and Dakota Trailblazer (2010). All of these varieties had more than 100 new acres of seed production, closely followed by ND8555-8R and Nicolet with 85 and 57 new acres of seed planted respectively.

Publications

  • Type: Journal Articles Status: Published Year Published: 2012 Citation: Davis, D.A., Radcliffe, E. B., Thill, C.A., Ragsdale, D.W. (2012). Resistance to Aphids, Late Blight and Viruses in Somatic Fusions and Crosses of Solanum tuberosum L. and Solanum bulbocastanum Dun. Am. J. Pot Res. 89:489-500.
  • Type: Journal Articles Status: Published Year Published: 2012 Citation: Felcher, K.J., Coombs, J.J., Massa, A.N., Hansey, C.N., Hamilton, J.P., Veilleux, R.E., Robin Buell, C., and Douches, D.S. (2012). Integration of two diploid potato linkage maps with the potato genome sequence. PloS one 7(4) : e36347.
  • Type: Journal Articles Status: Published Year Published: 2012 Citation: Melakeberhan, H., Douches, D., & Wang, W. (2012). Interactions of Selected Potato Cultivars and Populations of Meloidogyne hapla Adapted to the Midwest US Soils. Crop Science, 52(3), 1132-1137.
  • Type: Journal Articles Status: Published Year Published: 2012 Citation: Pasche, J.S., Thompson A.L., and Gudmestad N.C. (2012). Quantification of Field Resistance to Verticillium dahliae in Eight Russet-Skinned Potato Cultivars Using Real-Time PCR. Am. J. Pot Res. DOI 10.1007/s12230-012-9280-1.
  • Type: Journal Articles Status: Published Year Published: 2012 Citation: Bowen, B.D., Navarro, F., Groza, H., Jiang, J., Palta, J., Charkowski, A., Maatz, D. and Bauer, E. 2012. The Wisconsin Idea- SPUDPRO. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.77).
  • Type: Other Status: Published Year Published: 2012 Citation: Thompson, A.L. 2012. Larimore, North Dakota 2011 Processing Potato Trials. Valley Potato Grower. April 2012 (PP. 15- 21).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Douches, D.S. 2012 potato breeding and genetics at Michigan State University. Proceedings of the 47th Annual Montana Seed Potato Seminar Bozeman, Montana. November 8-9, 2012. (P. 13). Online at http://www.montanaspud.org/seminar%20information/2012 %20Seed%20Potato%20Proceedings.pdf. Verified 1/18/13.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Hansey, C.N., Bethke, P., Jansky, S., De Jong, W., and C. Robin Buell. 2012. A century of potato breeding: improvement, diversification and diversity. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.40).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Hansey, C., Coombs, J. Felcher, K, Robin Buell, C., and Douches, D. 2012. Genome wide SNP markers for trait mapping and germplasm assessment in potato. Visions for a Sustainable Planet. ASA, CSSA, and SSSA International Annual Meetings, Cincinnati, OH, October 21-24, 2012.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Sabba, R.P., Thompson, A.L., Pasche, J.S., and Gudmestad, N.C. 2012. Quantification of Verticillium dahlia in potato stems for the determination of early dying resistance. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.60).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Zorrilla, C. 2012. Using SolCap SNPs to map QTL for calcium and tuber quality in a tetraploid population derived from Atlantic x Superior. Solcap Worksphop. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. (P.12).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Zorrilla, C., Navarro, F., Vega, S., Bamberg, J., and Palta, J. 2012. Performance of promising clones from the `Atlantic' x `Superior' and the `Superior' x `Snowden' populations evaluated in several locations. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.34).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Zorrilla, C., Navarro, F., Vega, S., Bamberg, J., and Palta, J. 2012. Correlations among commercial traits and the possible maternal effects for these traits in the reciprocal populations of `Atlantic' and `Superior'. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.69).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Zuelke, M., McKenna, A., Steere, G., Mambetova, S., Felcher, K., Coombs, J., and Douches, D.S. 2012. QTL Analysis in a tetraploid population: Kalkaska x Tundra. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.70)
  • Type: Other Status: Published Year Published: 2012 Citation: Glynn, M.T. and Sowokinos, J. 2012. Advanced potato breeding clones: storage and processing evaluation. Valley Potato Grower April 2012 (PP. 10-14).
  • Type: Other Status: Published Year Published: 2012 Citation: Lemere, M. 2012. Wisconsin develops chip varieties. Evaluation of chip potatoes at the storage facility. Badger Common'tater. November 2012.
  • Type: Other Status: Published Year Published: 2012 Citation: Navarro, F., B.D. Bowden, A.L. Thompson and J. P. Palta 2012. Cultivar Corner: Lelah. Spudman 50(3):31.
  • Type: Other Status: Published Year Published: 2012 Citation: Navarro, F., B.D. Bowden, A.L. Thompson and J. P. Palta 2012. Introducing Lelah and Accumulator. SpudPro committee names new Wisconsin potato varieties: Badger Common'tater. January 2012 (PP. 26-27).
  • Type: Other Status: Published Year Published: 2012 Citation: Douches, D.S., Coombs, J., Zarka, K., Steere, G. Zuehlke, M., Zarka, D., Felcher K. and Kells, D. 2011. Potato Breeding and Genetics Research Report. In Michigan Potato Research Report 43:5-24.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Massa, A., Hansey, C. N., Jansky, S., Coombs, J., Douches, D.S, and C. Robin Buell. 2012. Residual heterozygosity in Solanum chacoense inbred lines. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.39).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Navarro, F., Bowen, B.D., Groza, H.I., Bussan, A.J., Jiang, J. and Palta, J. 2012. Accumulator: A new short storage potato chipping variety with exceptional yield potential. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.46).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Navarro, F., Bowen, B.D., Groza, H.I., Bussan, A.J., Jiang, J. and Palta, J. 2012. Lelah: A new potato chipping variety with excellent long storage ability. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.47).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Neubauer, J.D., Lulai, E.C., Thompson, A.L., Suttle, J.C., Bolton, M.D. 2012 Wounding coordinately induces cell wall protein, cell cycle and pectin methyl esterase genes involved in tuber closing layer and wound periderm development. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.72).
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Rak, K., Navarro, F., and Palta J. 2012. Evaluation of a potential molecular marker assay for potato cold storage fry quality. 96th Potato Association of America Meeting, Denver, CO, August 12-16, 2012. Program and Abstracts (P.33).
  • Type: Other Status: Published Year Published: 2012 Citation: Thompson, A.L. 2012. Cultivar Corner: Dakota Trailblazer (AOND95249-1Russ). Spudman 49(2):22. February 2012.
  • Type: Other Status: Published Year Published: 2012 Citation: Douches, D.S., Coombs, J., Zarka, K., Steere, G. Zuehlke, M., Long, C., Kirk, W. and Hao, J. 2012. 2011 Potato Variety Evaluations. . In Michigan Potato Research Report 43:25-57.
  • Type: Other Status: Published Year Published: 2012 Citation: Kirk,W., Schafer, R., Douches, D., Coombs, J., Halterman, D., Gevens, A. 2012. Identifying and characterizing resistance from diverse potato germplasm sources to highly aggressive strains of light blight:tuber responses. In Michigan Potato Research Report 43:82-85.
  • Type: Other Status: Published Year Published: 2012 Citation: Long, C., Douches, D., Steere, L., Min, Doo-Hong and Kapp, C. 2012. 2011 On-Farm Potato Variety Trials. . In Michigan Potato Research Report 43:59-75.
  • Type: Other Status: Published Year Published: 2012 Citation: Long, C., Steere, L. 2012. 2010-11 Dr. B.F. (Burt) Cargill Potato Demonstration Storage Annual Report. In Michigan Potato Research Report 43:120-139.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Navarro, F., B. D. Bowen, H.I. Groza, A.J. Bussan, J. Jiang and J.P. Palta. 2012. Accumulator: A new short storage potato chipping variety with exceptional yield potential. Proceedings of the 96th Annual Meeting Potato Association of America. Denver, CO.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Navarro, F., B. D. Bowen, H.I. Groza, A.J. Bussan, J. Jiang and J.P. Palta. 2012. Lelah: A new potato chipping variety with excellent long storage ability. Proceedings of the 96th Annual Meeting Potato Association of America. Denver, CO.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Navarro, F., B.D. Bowen, S. Vega, K. Rak, C. Zorrilla and J.P. Palta. 2012. Trait selection in potatoes: Finding the needle in the haystack. Proceedings of the Wisconsin's Annual Potato Meeting 25:11-31.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Navarro, F., E. Banks, C. Higgins, B.D. Bowen and J.P. Palta. 2012. Varietal resistance to common scab. Proceedings of the Wisconsin's Annual Potato Meeting 25:103-113.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Bowen, B.D., M. Lemere, F. Navarro, and J.P. Palta. 2012. SpudPro candidate trial 2011. Proceedings of the Wisconsin's Annual Potato Meeting 25:49-53.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Thill, C.A., and Miller, J. 2012. North Central Potato Variety Trial. In Research & Reporting Conference, Grand Forks, ND. Online at http://nppga.org/crop_science/research_reports.php.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Thill, C.A., and Miller, J. 2012. University of Minnesota breeding and genetics. In Research & Reporting Conference, Grand Forks, ND. Online at http://nppga.org/crop_science/research_reports.php.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Thompson, A.L., Farnsworth, B., Nilles, R. and Sabba, R. 2012. Potato Breeding and Cultivar Development for the Northern Plains North Dakota State University. 2012 Research & Reporting Conference, Grand Forks, ND. Online at http://nppga.org/crop_science/research_reports.php.
  • Type: Journal Articles Status: Published Year Published: 2012 Citation: Zorrilla, C., F. Navarro, S. Vega, J. Bamberg, and J.P. Palta. 2012. Developing a new variety with high tuber quality and good chipping quality from a cross between `Atlantic' and `Superior'. Proceedings of the Wisconsin's Annual Potato Meeting 25:34-35.
  • Type: Conference Papers and Presentations Status: Published Year Published: 2012 Citation: Fulladolsa P., A.C., R. Kota, K. Severson, F. Navarro, and A.O. Charkowski. 2012. Marker assisted selection for detection and incorporation of potato virus Y resistance in potato varieties in Wisconsin. Proceedings of the Wisconsin's Annual Potato Meeting 25:171.
  • Type: Other Status: Published Year Published: 2012 Citation: John, K. (2012). Factors affecting cryotherapy as a means of virus eradication in Solanum tuberosum L. MS Thesis University of Minnesota, 2012.