红小豆主要农艺性状的灰色关联与相关性分析

Analysis of Grey Incidence and Correlation on Major Agronomic Characters of Adzuki Bean

为了探索红小豆主要农艺性状与产量性状间的相关性,采用灰色关联和相关性分析的方法,对13个红小豆品种的11个主要农艺性状进行了研究。结果表明,11个农艺性状的变异系数为33.56%～2.37%,变异系数最大的为分枝数,最小的为生育期;灰色关联分析表明单株荚数、分枝数和生育期与单株产量关联度较高;相关分析表明单株荚数与单株产量呈显著的正相关。在红小豆辐射诱变高产突变体的选择中,首先应该把单株荚数作为选育的重点标识性状。

In order to explore the relationship between main agronomic and yield character, the grey incidence and corre lation of 11 main agronomic characters of 13 adzuki beans were analyzed. The results showed the coefficient of variation of 11 agronomic trait was 33.56o/oo ~2.37~/00, with the highest for number of branches per plant and the lowest for growlh period. The analysis of grey incidence showed that yield per plant was more closely related with number of pods per plant, number of branches per plant and growth period. Significantly positive relationship was found between num- ber of branches and yield per plant. It should take the number of branches per plant as the key trait for selecting mu- tants of high yield during adzuki bean mutation breeding.