圆果种黄麻主要经济性状与纤维产量的相关及灰色关联分析

Correlation and Gray Correlation between Fiber Yield and Main Economic Traits of Jute(Corchorus capsularis L.)

为了明确圆果种黄麻主要经济性状与单株纤维产量间的主次关系,本试验采用灰色关联和相关性分析的方法,对黄麻14个主要经济性状进行了研究。结果表明,14个主要经济性状的变异系数为3.03%~15.59%,变异系数最大的为分枝数,最小的为分枝高度;在相关分析中,单株纤维产量与株高、分枝高度、单株鲜皮重呈显著或极显著正相关;在关联度分析中,分枝高度、单株鲜皮重、鲜皮晒干率与单株纤维产量关联度较高。因此,黄麻在高产栽培和品种选育方面,除了应该选择分枝高度、单株鲜皮重和鲜皮晒干率作为主要目标性状外,同时也要注意多性状的综合选择。

In order to explore the relationship between main economic traits and fiber yield of Jute （Corchorus capsularis L.）,the gray correlation and correlation of 14 main economic traits were analyzed.The results showed that the variation coefficient of 14 main economic traits was 3.03% ~15.59%,with the branch number was the most and branch height was the least.The correlation analysis indicated that fiber yield per plant had remarkable or extremely remarkable correlation with plant height,branch height and fresh bark weight per plant.In gray correlation analysis,fiber yield per plant was more closely relat-ed with branch height,fresh bark weight per plant,and the dry rate of fresh bark.It should take branch height,fresh bark weight per plant and the dry rate of fresh bark as the key traits for selecting in breeding work,and attention should be paid to multiple traits.