关键词: D优3138, 产量构成要素, 相关分析, 通径分析

Abstract:

The correlation analysis and path analysis were carried out on the yield and yield components of D you 3138 in regional test and production test from 2011 to 2013. The results showed that 1 000 grain weight has the maximum stability and minimum direct contribution to yield; the effective panicle number has medium stability and maximum direct contribution to yield; the fluctuation of grain number per panicle is relatively large; the direct path coefficients of the three yield components to yield did not reach the significant level. In actual production to reach high yield potential, the key is increase the number of basic seedling, improve the effective panicle number, take account of seed setting rate, grain number per panicle and 1 000 grain weight, coordinating the relationship of three yield components, finally could achieve big panicle, enough panicle, and ensure the high production capacity.

Key words: D you 3138, yield component, correlation analysis, path analysis