秋播蚕豆品种主要农艺性状相关性和通径分析

以凤豆14号、苏03021、启豆2号等12个秋播蚕豆品种为参试材料,考察了生育期、株高、荚长、单株夹数、单株粒数、百粒重和单株产量等7个主要性状之间的相关关系,并通过通径分析建立了单株产量（Y）的线性回归方程。结果表明,7个农艺性状间存在复杂的相关关系,其中单株荚数与单株产量之间表现出极显著的正相关性,而生育期与单株产量之间表现出显著的负相关性;各性状对单株产量的直接贡献率由高到低依次为单株荚数〉荚长〉株高〉生育期〉百粒重〉单株粒数;单株产量（Y）的线性回归方程为：Y=-8.423＋1.281X4＋1.757X3;单株荚数（X4）、荚长（X3）被保留在最优方程中。

Correlation and Path Analyses of Main Agronomic Characters of Autumn Broad Bean

The correlation and path analysis of 7 agronomic characters of 12 autumn broad bean varieties from the evaluation and selection experiments of autumn broad bean in 2012 to 2013.The results show that the relevant relationships between 7 main agronomic characters are complex.The yield per plant was significantly positive correlated with the number of pods per plant and negative correlation with growth stages. The number of pods per plant and pod length were significantly negative relationship .The number of seeds per plant was significantly negative correlation with the hundred grain weight. The direct contribution of agronomic traits to yield per plant was in the following order： pod number per plant 〉pod length 〉Plant height〉 Growth period〉Hundred-grain weight〉 seed number per plant.