大豆新品系主要农艺性状比较分析

Analysis and Comparison of Agronomic Characters in New Soybean Lines

对16个大豆参试新品系的农艺性状进行遗传参数的分析,结果表明:(1)6个品系的百粒重平均表现高于对照品种;15个参试品系的单株产量均高于对照品种;(2)单株荚数、单株粒数、单株产量遗传力较低;(3)单株荚数与主茎分枝数、单株粒数、单株产量呈极显著正相关,与百粒重呈极显著负相关;百粒重与荚宽呈显著正相关,与单株荚数、单株粒数呈极显著负相关。

The genetic parameters of agronomic characters in 16 soybean varieties were studied. The results showed as follows:(1) Hundred grain weight of 6 varieties in soybean and yield per plant of 15 lines in soybean were higher than those of control, (2) Heritability of number of pods per plant, number of seeds per plant, and yield per plant were poor, (3) There were significantly positive correlations between number of pods per plant and number of branches in main stem, number of seeds per plant, yield per plant. Number of pods was reversely related to hundred grain weight. A significantly positive correlation was found between hundred grain weight and width of pods. Hundred grain weight was significantly negative correlated with number of pods and seeds per plant.