水稻产量性状相关性及通径分析

Correlation and path analysis on the yield characters of rice

通过对影响水稻产量性状的相关性及通径分析,结果表明:结实率、667m 2穗数、667m 2穴数与667m 2实际产量之间有较大的正相关性,相关系数分别为0.7009、0.5900和0.6520。而千粒重和平均每穴的有效穗数与产量呈较弱的负相关性,其相关系数分别为-0.1290和-0.0681。因此,在制定水稻高产栽培措施时,应在稳定较高结实率的基础上,提高667m 2穗数和穴数,达到高产稳产。

This paper analyzes the yield and its composition of rice by using tassel and the efficiency of fruit correlation and path analysis, it is concluded that the efficiency of fruit, the ear of grain, the number of hole and the yield of rice have obvious positive correlation, and the coefficient is respectively 0.700 9, 0.590 0 and 0.652 0; On the contrary, the weight of 1 000 grain ,the average effective tassel and the yield have weak negative correlation, and the coefficient is respectively -0.129 0 and -0.068 1. So when drafting the measure of high-yield cultivation, we should not only stabilize the efficiency of fruit, but also increase the total to enhance the yield of rice.