亚麻工艺长相关性状的通径分析

本试验以6个普通亚麻品种为材料,进行工艺长相关性状的通径分析。结果表明,5个相关性状对工艺长度影响大小顺序为:单株粒重>单株粒数>千粒重>株高>主茎分枝数。降低单株粒重是提高工艺长度的主要途径。在千粒重、单株粒重相对稳定的类型中,选择植株较高、单株粒数较多者,或在株高、单株粒数相对稳定的类型中,选择千粒重较高者是提高工艺长度的重要途径。减少主茎分枝数亦可有效提高工艺长度,但作用较小。

PATH ANALYSIS OF CHARACTERS RELATING TO TECHNOLOGICAL LENGTH IN FLAX

In the experment the path analysis of characters relating to thechnological length in flax was conducted.The main results are as follows: The thechnological length influenced by 5 correlative characters,whose order is this: weight of seeds per plan t>number of seeds per plant>weight of a thousand seeds> plant height>number of branches of main stem.The main way to improve thechnological length is to reduce the weight of seeds per plant. The important way to improve thechnological length is to select materias of higher plants with the more number of seeds per plant in the variety keeping the weight of a thousand seeds and the weight of seeds per plant stable ralatively or to select materias of higher 1000 seeds in the variety keeping the plant height and number of seeds per plant stable ralatively.lt may improve thechmological length effectively to reduce the number of branches of main stem.But the effect is very small