杂交晚稻产量结构分析及增产途径的探讨

Analysis of Yield Structure and Yield Increasing Ways of Hybrid Late Rice

对杂交晚稻的产量及其构成因素进行了相关分析和通径分析,结果表明,结实率与产量间呈极显著的相关,是影响产量的主要因素。高产栽培策略是:在协调穗粒结构的基础上,加强中后期田间管理,增加每穗实粒数,提高结实率。

The correlation and path analysis of yield and yield components of hybrid late rice showed that there was very significant correlation between setting rate and yield(P<0.01), setting rate is the key factor which affects the yield. The high yield culture ways are put forward as follows: on the basis of coordinating the structure of spike and grain, strengthening the field management at middle and late stage, increasing grains per spike and setting rate.