Rht1 and Rht2 Semidwarf Genes Effect on Hybrid Vigor and Agronomic Traits of Wheat

摘要: Mean grain yield of all genotypes declined significantly as a linear function the number Rht genes. Negative effects on were consequene reduced kernel weights that not offset by other components. Midparent heterosis for one measure was greatest tall hybrids (14%), followed semidwarfs (10%), and double-dwarfs (2%). The Norin 10 alleles appear to limit expression hybrid vigor