油用亚麻主要农艺性状相关性及关联分析

Correlation and Grey Relation Analysis of Main Agronomic Traits of Crown Flax

摘要:

为了研究影响种子含油率的主要因素,本试验采用随机区组设计,将参试的23个油用亚麻品种的10个农艺性状进行相关分析及灰色关联度分析,结果表明:与种子含油率呈显著正相关的性状有蒴果大小、千粒重和小区产量;呈负相关的有株高、工艺长度。种子含油率与其他9个农艺性状的关联度大小排序为:蒴果大小>单果粒数>株高>千粒重>主茎分枝数>小区种子产量>分茎数>单株蒴果数>工艺长度。蒴果大小和单果粒数反映的是植株潜在增产因子,株高是油用亚麻植株的抗倒伏因子,千粒重、主茎分枝数、小区种子产量为种子产量影响因子,在今后油用亚麻引种及品种选育时应重点关注以上指标。

Abstract:

In order to find out the main factors affecting oil content of seeds, the randomized block design was adopted. Then, the correlation and grey relation analysis of 10 agronomic traits of 23 oil flax varieties were carried out.The results showed that the seed oil content was significantly correlated with capsule size, thousand-grain weight and plot yield, while negatively correlated with plant height and technical length. The results of grey relation analysis showed that the order of relation degree between seed oil percentage and other 9 agronomic traits was capsule size ＞ seed number of single capsules ＞ plant height ＞ thousand-grain weight ＞ branch number of main stems ＞seed yield in plot ＞ stem number ＞ capsule number of single plant ＞ technical length. Capsule size and seeds number of single grains were potential yield-increasing factors, and plant height was the lodging resistance factor of crown flax, and thousand-grain weight, branches number of main stem and seed yield in plot were the factors of seed yield. In the future, the introduction and breeding of crown flax varieties should focus on the above indicators.