亚麻几个农艺性状表现及相关分析

Performance of Several Agronomic Traits and Their Correlation Analysis of Flax(Linum usitatissimum)

[目的]为亚麻(Linum usitatissimum)下一步的育种工作提供理论基础。[方法]随机挑选210份亚麻高世代材料,分析了5个农艺性状(株高、工艺长、分枝数、蒴果数、单株麻率)的表现特征及其相关性。[结果]蒴果数变幅最大,变异系数为25.74%,5个性状的表现均呈单峰近似正态分布。相关性分析显示,蒴果数和单株麻率呈极显著负相关,与分枝数显著相关,株高和工艺长表现出极显著的相关性。[结论]高世代材料中存在一些优异的品系,通过筛选可以获得高产优质育种材料。

[ Objective ] The aim was to provide a theoretical basis for the next breeding work of Linum usitatissimum. [ Method ] 210 high-gener- ation materials in flax germplasm resources were selected randomly and then analyzed their performances and correlation of five agronomic traits, plant height, stem length, branching number, the number of capsule and the fiber rate per plant. [ Result] The results showed that the capsule number had the largest range and the coefficient of variation was 25.74%, the five traits all showed unimodal approximately normal distribution. The correlation analysis showed that the capsule number was significant negative correlation with the fiber rate per plant and significantly related to the branching number, plant height and stem length shoued significant correlation. [ Conclusion] Some excellent germplasm can be used in a high yield and quality breeding in the high-generation material in flax germplasm resources.