Correlation Analysis between Main Agronomic Traits and Yield Composition of Brassica napus
[Objective]To obtain the ideotype of Brassica napus,the correlation between main agronomic traits and yield components was studied.[Method]From 2017 to 2019,600 germplasm resource materi-als from major ecological areas were planted for two consecutive years,and main agronomic traits were collected to analyze the correlation between each trait and actual yield.[Result]The results showed that,there was a linear regression relationship between primary branch number,main sequence pod number,yield per plant and actual yield,and a quadratic regression relationship between other traits and actual yield.All the exhibited a significant positive correlation with yield.Among them,the number of seeds per pod contributed the most to the yield per plant and the actual yield.[Conclusion]According to the regression relationship between the traits and the actual yield,an ideotype was obtained.The yield per plant for this ideotype was about 24.21 g,with a theoretical yield was 314.73 kg/667 m2.
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