There was a great direct positive effect of grains per panicle on seed set in IJv hybrids.The increase of seed set of IJv hybrids mainly depended on more grains per panicle.

　
英 美
  • 每穗實(shí)粒數對秈爪交雜種結實(shí)率的直接正效應大，秈爪交雜種結實(shí)率的提高主要依賴(lài)每穗實(shí)粒數的增加，而其它性狀的選擇和改良作用不大。
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