期刊论文

中文

杂交水稻

1005-3956

2023

38

2

142-148

10.16267/j.cnki.1005-3956.20211110.380

国家水稻产业技术体系岗位科学家(CRAS-01-27)。

本校为第一机构

通过系统比较并分析了113个中稻品种作为再生稻种植的生育期、产量及其构成因素和穗桩比之间的差异及其相关性，明确湘北地区再生稻适宜生育期与高产特征，为该地区再生稻种植提供理论依据和实践支撑。结果表明：2016—2020年，不同品种再生稻全生育期平均为211.3～220.7 d，其中头季为139.0～146.1 d，再生季为70.3～77.1 d；两季总产量平均为12.07～14.55 t/hm2，头季和再生季产量比为（6.0～7.0）︰（4.0～3.0）；头季稻产量与单位面积颖花数呈极显著正相关，再生季产量与千粒重呈显著正相关，与结实率和穗桩比呈极显著正相关；以再生季安全齐穗期为界，徽两优898、黄华占、泰优390、桃优香占...

Through systematic comparison and analysis of 113 medium rice varieties as ratooning rice planting in the difference of growth duration,yield,yield components and ratio of panicle to stubble and their correlation,the suitable growth duration and high-yielding characteri...MORE Through systematic comparison and analysis of 113 medium rice varieties as ratooning rice planting in the difference of growth duration,yield,yield components and ratio of panicle to stubble and their correlation,the suitable growth duration and high-yielding characteristics of ratooning rice in northern Hunan were defin...