1a.Objectives (from AD-416)
The objectives of this proposal are to develop improved varieties of green, yellow and marrowfat spring peas and green winter-hardy peas.
1b.Approach (from AD-416)
Screen breeding lines for resistance to soilborne pathogens, viral pathogens and foliar fungal pathogens. Develop SCAR markers from previously identified PCR markers associated with tolerance to Aphanomyces root rot. Establish observation nurseries, preliminary yield trials and advanced yield trials in WA and ID. Evaluate breeding lines for cooking quality and nutritional quality.
Crosses were made between elite pea breeding lines. Generations of progenies were advanced in the greenhouses and field. Select pea lines with high levels of partial resistance to Aphanomyces root rot and lines of pre-breeder seed were also increased in an alternate season nursery grown in New Zealand. Preliminary breeding lines were evaluated in WA. Advanced breeding lines of pea were evaluated in yield trials conducted at multiple locations in WA, ID, MT and ND. Pre-breeder seed lots were produced of three pea lines that are being considered for imminent release as new varieties. The lead scientist monitors the Cooperator’s performance through regular phone conversations and email correspondence, visits to field locations and participation in field tours during the growing season, and meetings held after the field season is completed.