杂交中籼新品种筛选

New Variety Screening of Middle-season Indica Hybrid Rice

[目的]筛选出适合安徽省种植的杂交中籼新品种。[方法]通过对12个杂交中籼新品种进行比较试验,调查各品种的生育性状、抗性及产量等指标。[结果]从产量和主要农艺性状表现筛选出综合表现好的品种有两优502、丰两优688、两优392;综合表现较好的品种有Y两优5836、荃优金1号;两优8号、两优3451这2个品种的综合表现较差。[结论]降低株高可以提高品种的抗倒能力,但产量并不低;增加穗粒数、提高结实率,可以有效提高水稻品种的产量。

[Objective] To screen suitable new variety of middle-season Indica hybrid rice in Anhui Province. [Method]Comparative test was carried out for 12 new varieties of middle-season Indica hybrid rice. The growth characters,resistance,yield and other indexes were investigated. [Result] Liangyou 502,Fengliangyou 688 and Liangyou 392 were screened based on the yield and main agronomic characters,which had good integrated performance. Y Liangyou 5836 and Quanyoujin 1 had relatively good integrated performance. However,Liangyou 8 and Liangyou 3451 showed relatively poor integrated performance. [Conclusion]Reducing plant height enhances the resistance to lodging,but the output is not necessarily low. Increasing spike grain number and improving seed setting rate can effectively improve the yield of rice varieties.