高粱主要性状与耐瘠性的相关分析

以相关分析法研究了23个国外高粱品种9个主要性状与耐瘠性的相关关系。结果表明，多数性状与耐瘠性为不显著相关，只有穗粒数、株高与耐瘠性相关关系显著。通径分析表明，株高对耐瘠性的直接作用最大，其次为千粒重和一级枝梗数。对株高、千粒重、一级枝梗数进行选择可有效提高品种耐瘠性的选择效果。

Correlative Analysis Between the Major Sorghum Characters and Poor-soil-fertility Tolerance

Twenty-three varieties were investigated and correlative analysis was carried out to study the relation between the major sorghum characters and poor-soil-fertility tolerance. The results showed that the poor-soil-fertility tolerance was not significantly related to the most of the characters, but it was significantly related with the number of grains per panicle and plant height. Path analysis showed that the value of direct effect of plant height over low-fertility tolerance was the highest.