夏播大豆生育期结构与农艺性状的相关性研究

Studies on Correlationship of Development Stages and Agronomic Traits of Summer Sowing Soybean

本试验选取在北京生态条件下生育期在 10 0天以内的我国南方及国外 39个品种 ,进行生育期结构与农艺性状相关变异方面的研究 ,结果表明 :(1)主茎始花期R1与有效分枝始节、主茎分枝数呈极显著正相关 ,与结荚高度呈显著正相关。 (2 )生理成熟期R7与主茎节数呈极显著正相关 ,与株高呈显著正相关 ,与有效分枝始节、主茎分枝数呈显著负相关。

The studies on correlationship of development stages and agronomic traits was carried out in 39 varieties from southern china or abroad, which life span was less than 100 days in the condition of Beijing ecosystem. The results indicated that: 1) R 1 was significant positive with the first effective branch the amount of main branch, and the height of initiating pod 2) R 7 was significant positive with the number of stem nodes, and height of plant, but negative with the first effective branch and the amount of main branch.