Molecular genetic analysis of stay-green, a post-flowering drought resistance trait in grain sorghum (Sorghum bicolor L. Moench).

摘要

Drought resistance has been a prime breeding objective in sorghum (Sorghum bicolor L. Moench) improvement programs. However, selection for drought resistance traits has been difficult under field conditions because of the large environmental influence and lack of control over intensity and timing of stress. The main objectives of this research were to identify the quantitative trait loci (QTLs) influencing stay green and yield characteristics, and to study the relationship between the two. The two genotypes, B35 and Tx430, and 96 of their F