Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (27): 147-152.doi: 10.11924/j.issn.1000-6850.casb15030200

Special Issue: 油料作物 园艺

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Correlation and Principal Components Analysis of the Main Agricultural Traits of Rapeseed Breeding Parents

  

  • Received:2015-03-25 Revised:2015-05-15 Accepted:2015-05-25 Online:2015-09-23 Published:2015-09-23

Abstract: In order to assess the different rapeseed lines effectively and select the elite lines for rapeseed breeding, as well as discuss the basic heredity laws of rapeseed traits, the correlation analysis and the principal components analysis were carried out on eleven agricultural traits of eighteen rapeseed breeding lines. There were great differences among the main agricultural traits of rapeseed breeding parents. The variation coefficient of the different traits ranged from 0.09 to 0.31, the highest was found for yield per plant and the least was found for plant height. The correlations of the main agricultural traits were different. The significant correlation was found between the related silique number and yield per plant, and the bad correlation was found between the distance of branches and other traits. The four main principal components were obtained in the principal components analysis of the main agricultural traits. Except that the first principal component consisted of silique number and yield plant, the other three principal components were mainly constituted by distance of branches. Both the main objective traits and its related traits should be emphasized in the effective improvement of rapeseed breeding. All these results would provide some basis for the effective utilization of rapeseed germplasm and the improvement of rapeseed traits.