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按Eberhart和Russell(1966)的分析模式评价了八个陆地棉品种(系)皮棉产量等十个性状的稳定性。同时,采用Spearman等级相关的方法研究了皮棉产量稳定性与其他性状稳定性的相关关系。结果表明,分析的大多数品种(系)皮棉产量等十个性状的平均表现与环境指数呈显著或极显著的线性关系,皮棉产量的稳定性(平均产量对环境指数的回归系数)与单株成铃数和衣分的稳定性呈密切的正相关关系,与株高和果枝始节的稳定性亦呈显著的正相关。因此,进行稳产性育种可根据铃数、衣分、株高和果枝始节的稳定性进行间接选择。
According to Eberhart and Russell (1966) analysis of the evaluation of eight cultivars (lines) lint yield stability of ten traits. At the same time, Spearman rank correlation method was used to study the correlation between the lint yield stability and the stability of other characters. The results showed that the average performance of ten traits, such as lint yield, showed a significant or extremely significant linear relationship with the environmental index for most cultivars (lines). The stability of lint yield (regression coefficient of average yield to environmental index) There was a close positive correlation between the number of bolls and the stability of lint and the positive correlation between plant height and the stability of fruiting branches. Therefore, the stable breeding can be based on the number of bolls, lint, plant height and the stability of fruit branch at the beginning of indirect selection.