Project Details:

Trait and production efficiency enhancement in soybean

Parent Project: Soybean variety and germ plasm improvement
Checkoff Organization:Kansas Soybean Commission
Categories:Breeding & genetics, Seed composition
Organization Project Code:
Project Year:2013
Lead Principal Investigator:William Schapaugh (Kansas State University)
Co-Principal Investigators:
Kelly Kusel (Kansas State University)
Tim C. Todd (Kansas State University)
Harold Trick (Kansas State University)
Keywords: Charcoal Rot, Soybean Breeding, Soybean Breeding - Composition, Soybean Breeding - Disease Resistance, Soybean Cyst Nematode (SCN), Sudden Death Syndrome (SDS)

Contributing Organizations

Funding Institutions

Information and Results

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Project Summary

This project will develop new soybean germplasm with superior traits or unique combinations of traits useful to the soybean industry.

Project Objectives

1. Improve the genetic potential and enhance the genetic diversity of soybean germplasm for the following traits: seed yield under dryland and irrigated production; seed composition (high oil and protein and oleic acid; low phytate, linolenic, and saturated fats); disease and insect resistance (soybean cyst nematode, soybean sudden death syndrome, soybean aphid, and Dectes stem borer).
2. Incorporate transgenic events into elite breeding lines.
3. Develop populations for studying the inheritance and mapping resistance genes to Dectes stem borer.
4. Develop methods to better characterize the stress tolerance of a genotype.
5. Characterize the virulence diversity in Kansas populations of soybean cyst nematode.
6. Develop best management practices in Southeast KS for disease control in soybean, with special consideration for season-long charcoal rot control, early and mid season leaf disease control, and late foliar, pod, and stem disease control.

Project Deliverables

1.The K07-1633 seed variety was approved for release in early 2013.

2.Genotypes differed significantly for canopy temperature, leaf chlorophyll content, pollen germination, and yield components. No significant differences were found for leaf chlorophyll fluorescence or leaf antioxidants. Seed yield increased with year of release. Canopy temperature was negatively correlated and leaf chlorophyll content was positively correlated with year of release in both maturity groups. No significant correlation with year of release was found for in vitro pollen germination or electrolyte leakage. Leaf chlorophyll fluorescence, yield components, and total antioxidant capacity was positively correlated in the maturity group IV genotypes with year of release. Evaluation of these parameters may serve as a basis to select for seed yield, or to assess the abiotic stress tolerance of a genotype.

3.We concluded that season total means incorporating all growth stage observations was a more robust and consistent model than individual growth stages.

Progress of Work

Final Project Results

Benefit to Soybean Farmers

Performance Metrics

Project Years