长豇豆主要农艺性状与产量的相关性研究

Correlation analysis of the yield and main agronomic characters of asparagus bean

对8个长豇豆品种的主要农艺、经济性状进行相关分析、通径分析和回归分析。相关分析结果表明,单株结荚数、单荚重与产量呈显著相关,第1侧蔓节位与产量呈极显著负相关。简单回归分析表明,单株结荚数、单荚重、第1侧蔓节位对产量影响较大。通径分析表明,单荚重对产量的直接效应最大,其次为单株结荚数。多元回归分析表明,单荚重(x1)、单株结荚数(x2)、单叶重(x7)是影响产量的主要因素,3个因素对产量的多元回归方程为y=-152.827+10.701x1+14.108x2+0.441x7(r=0.963**)。

The correlation, path and regression analysis of main agronomic characters and economical characters of 8 asparagus bean varieties were studied. The results showed that there were significant or very significant correlation between yield and weight of per pod. number of pods per plant, nodal point of first branch ( weight of per pod, number of pods per plant, nodal point of first branch had stronger effects on yield; the direct effect of weight of per pod was the strongest, and number of pods per plant was the next; weight of per pod (x1), number of pods per plant (x2), weight of per leaf (x7) were main characters which affect yield, multiple regression equation of yield and these three characters was y= -152. 827 + 10. 701x1 + 14. 108x2+0. 441x7 (r=0. 963* *).