The results showed that value of cold water response index (CRI) of seed setting rate was low, but CRI of seed spike lets per panicle and CRI of culm length were high.

• 结果表明，在主要农艺性状中，结实率的冷水反应指数(CRI)值相对较小，受低温冷害程度较大，穗粒数和杆长的CRI值相对较大，低温冷害片其影响较小；