普通豇豆产量与主要农艺性状的灰色关联度分析

Grey Correlation Analysis of Yield and Major Agronomic Traits in Common Cowpea

摘要:

为明确不同农艺性状对普通豇豆产量影响的相对重要性，本研究以14份普通豇豆品种（系）为试验材料，对产量与8个主要农艺性状采用灰色关联度进行分析，探明各主要性状对产量影响的相对主次关系。研究结果表明，各农艺性状与产量的关联度排序依次为：单株产量（0.770 6）>荚长（0.713 6）>单荚粒数（0.705 5）>单株荚数（0.702 2）>百粒重（0.698 1）>主茎分枝数（0.644 9）>株高（0.631 6）>主茎节数（0.618 0）。因此，在普通豇豆育种时应优先选择单株产量高、荚长较长的品种，其次选择单荚粒数多、单株荚数多和百粒重较重的品种，然后兼顾适当的主茎分枝数和株高，最后选择合适的主茎节数。本研究结果将为普通豇豆亲本筛选及新品种选育提供理论依据，对推动吉林省西部普通豇豆种植区产业发展有着积极作用。

Abstract:

To clarify the relative importance of different agronomic traits on yield in common cowpea, 14 common cowpea varieties (lines) were used as experimental materials. Grey correlation analysis was applied to analyze the relationship between yield and 8 major agronomic traits, aiming to determine the relative priority of each trait′s impact on yield. The results showed that the order of association between agronomic traits and yield was as follows: yield per plant(0.770 6) > pod length(0.713 6) > number of grains per pod(0.705 5) > number of pods per plant(0.702 2) > 100-seed weight (0.698 1) > number of main stem branches (0.644 9) > plant height (0.631 6) > number of main stem nodes (0.618 0). Therefore, in common cowpea breeding, varieties with high yield per plant and longer pod length should be prioritized, followed by those with higher number of grains per pod, higher number of pods per plant, and heavier 100-seed weight. Appropriate number of main stem branching and plant height should be considered, with suitable number of main stem nodes selected last. Applying these research findings to common cowpea variety selection provides a theoretical basis for parent plant screening and new variety development, playing a positive role in promoting the development of the common cowpea planting industry in the western region of Jilin Province.