25份白菜型油菜种质资源主要农艺性状分析与评价

Analysis and Evaluation of Main Agronomic Traits of 25 Brassica rapa Germplasm Resources

为充分利用油菜地方种质资源,对收集到的25份白菜型油菜种质资源的11个主要农艺性状进行遗传多样性分析、相关性分析、主成分分析和聚类分析。结果表明,25份供试材料具有丰富的遗传多样性,11个农艺性状中全株有效角果数的变异系数最高,为50.36%;主成分分析将11个农艺性状归为4个主成分,累计贡献率为75.99%;聚类分析将25份供试材料划分为3个类群,第1类群包含19份材料,第2类群包含5份材料,第3类群包含1份材料。

In order to make full use of local rapeseed germplasm resources,11 main agronomic traits of 25 local rapeseed germplasm resources were identified and evaluated by variance analysis,correlation analysis,principal component analysis and cluster analysis.The results showed that effective pod number of whole plants had the highest variation coefficient(50.36%).11 main agronomic traits were classified into 4 principal components,and the cumulative contribution rate reached 75.99%.Cluster analysis divided the 25 materials into 3 groups,of which 19 materials were in groupⅠ,five materials were in groupⅡ,one material was in groupⅢ.