PLEIOTROPIC EFFECTS OF GA - INSENSITIVE Rht GENES ON GRAIN YIELD AND ITS COMPONENT CHARACTERS IN WHEAT
作者： O. Singh , H. S. Balyan
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摘要: SUMMARY Evaluation of random pairs near isogenic tall (rht) and dwarf (Rht) lines under late sown conditions indicated that the Rht1, Rht2 Rht3 dwarfing genes were associated with 22.25%, 14.19% 26.73% reduction in grain yield, respectively. The negative effect each three Rht on yield was due to significant biological yield. In turn, poor Rht1 mainly reduced number lighter tillers while it tillers, less grains per floret spike 100 weight. mechanisms, involved containing different were, thus, different. It is suggested may arise their greater sensitivity stress factors, particularly warm conditions, sowings.
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