Location: Soybean and Nitrogen Fixation Research
Project Number: 6070-21220-070-054-A
Project Type: Cooperative Agreement
Start Date: Oct 1, 2023
End Date: Sep 30, 2024
Objective:
1. Develop new breeding lines with increased test weight and high yield.
Objective.
2. Implement coordinated multistate trials to determine the impact of genetics and geography on test weight using an array of extreme soybean types and extreme environments.
Approach:
1) Identify genetic, management practices, and environmental factors that potentially affect test weight. Select parents from maturity group 4 and 5 with excellent yield, good defense package, and no reduction in test weight. Advance breeding populations on fast-track from F1 to F4 to reach true breeding in Costa Rica winter nursery. Grow progeny rows and select pure lines with targeted traits for testing. 2) Grow and evaluate preliminary lines for test weight, yield, agronomic, seed quality traits in Missouri and select superior lines for advanced trials. Select promising best lines and extensively test selected materials in multi-environment trials across Missouri and other Southern states to identify the lines with genetically improved test weight. Release the best lines with genetically improved test weight as cultivars or germplasm and use them in next cycle of test weight breeding.
