Tomato high tunnel, caterpillar and field variety comparison trials
We are in the fourth season of trials comparing tomato varieties in high tunnel and open field production, and the first year of a three year project comparing high tunnels, caterpillar tunnels and field production. We compare yield, earliness, disease incidence, and quality on the research station and also in trials on-farm. We are conducting taste evaluations with chefs, farmers and members of the public. Funded by USDA-North Central SARE.
Tomato Organic Management and Improvement: Breeding tomatoes for better flavor and disease resistance
Lori Hoagland, Purdue University, PI. Field trials include breeding lines in the Tomato Organic Management and Improvement project, seeking to combine exceptional flavor with resistance to late blight, early blight and septoria. Funded by USDA OREI. Webinars have provided information on tomato disease management, seed production and breeding.
Potato Seed Production and Breeding
Ruth Genger, PI. We conduct on-farm trials of potato varieties, including heirloom, specialty and new potato lines. We also trial seed potato production on-farm, tracking tuber health and economics, and teach farmers to make potato crosses and trial the progeny. Funded by USDA North Central SARE, CERES Trust and Wisconsin Specialty Crop Block Grants.
Potato Mulching Trials
Ruth Genger, PI. This is our sixth year of trialing straw mulch as a weed management approach in organic potato production. Straw mulch, applied at emergence, has proved as effective for weed suppression as mechanical cultivation and hilling, and suppresses a late flush of weeds as potato vines die back. In addition we have seen an increase in potato yields and tuber size, especially in drier years. Funded by Ceres Trust.
Developing better methods of using germplasm resources in plant breeding
Identifying accessions in genetic resource collections to use for traits of importance to organic systems, or any new breeding objective, can be challenging due to the lack of information on many accessions. We are screening the entire USDA carrot germplasm collection with Phil Simon’s research group. We will then test our ability to use data on carrot varieties collected in organic systems and genomic fingerprints of the USDA collection to predict which accessions will be most useful to use as parents in organic breeding programs. This will be compared with direct selection based on the phenotypes collected in a conventional system (a typical situation for breeders trying to start an organic breeding program). Phil Simon, Irwin Goldman and David Spooner, co-PIs. Funded by USDA-AFRI Foundational plant breeding program.
We are also working with Phil Simon’s group on a Specialty Crop Research Initiative project to develop breeding populations and genomic tools in carrot. The goals of this project are to identify favorable phenotypes in diverse carrot germplasm and breeding stocks for traits important for growers and consumers; generate a genomics database for that germplasm; develop a platform to deliver phenotypic and genotypic information for carrot breeders to tap into the breadth of carrot genetic diversity; and establish a science-based foundation for long-term carrot improvement. We will be conducting genome-wide association analyses on priority traits for carrot breeders using data from the USDA-NPGS collection and breeding lines. Phil Simon, USDA-ARS, PI. Funded by USDA Specialty Crop Research Initiative.
Carrot Improvement for Organic Agriculture (CIOA 2)
Phil Simon, USDA-ARS, PI. This project aims to meet the needs of organic growers by developing carrot varieties adapted to organic growing conditions and with market qualities demanded by consumers. Weed competition, nutrient acquisition, nematodes, and disease pressure are particularly critical challenges in fresh market carrots. Plant breeding is a long-term effort and the CIOA2 project builds on prior research to deliver new, improved carrot cultivars and breeding lines; developing new breeding populations that combine critical traits identified during CIOA1. Funded by USDA OREI. Our group is working with chefs on flavor evaluation and characterization of new varieties and breeding lines developed through this project, and on-farm trials of new varieties through the Seed to Kitchen Collaborative.
Northern Organic Vegetable Improvement Collaborative (NOVIC)
James Myers, Oregon State University, PI. The Northern Organic Vegetable Improvement Collaborative (NOVIC) joins researchers and farmers in Northern U.S. to address organic farmers’ seed and plant breeding needs. Our collaborative includes researchers and educators from Oregon State University, University of Wisconsin-Madison, Cornell University, Washington State University, Organic Seed Alliance, and the USDA. Our group is conducting variety trials in Wisconsin, in partnership with farmers to identify the best performing existing varieties for organic agriculture, and breeding new varieties of tomatoes for organic high tunnel production. We are also collaborating with all project partners to provide education and resources on organic seed production and plant variety improvement.
Multi-Use Naked Barley for Organic Systems
Pat Hayes, Oregon State University, PI. Organic growers need new crops, markets, and rotation options supported by varieties that are developed specifically for organic conditions. Hulled barley presents a barrier to local food uses because of the need for dehulling and processing infrastructure. The long-term goal of this NIFA-OREI funded research project is to provide organic gardeners, growers, processors, and consumers with an alternative crop, food, and raw material that will be economically rewarding and sustainable. Our group is to working with chefs and bakers in food quality and flavor evaluation of the promising varieties being developed for organic systems.