不同粳稻品种耐旱性试验研究

Study on the Drought-tolerance of Different Japonica Rice Varieties

选用9个不同粳稻品种,通过相同断水时间抗旱处理条件下,对品种进行耐旱性试验研究,结果表明:不同品种耐旱性有着很大差异,水稻新品种农大27平均产量最好,极显著高于其他品种;品种间多重比较结果表明,农大27属散穗型,生育繁茂耐旱能力较强,具有大型散穗品种特征。

A drought tolerance experiment was conducted with nine rice varieties as entries. The results showed that there existed great difference of drought tolerance among varieties. The yield of new rice variety Nongda 27 was highest and very significantly higher than other varieties. Nongda 27 is a loose panicle type rice variety with less panicle numbers per 667 m^2, but much more flowers and grains per panicle.