Fruit traits evaluation and cluster analysis of different Chaotian pepper varieties
In order to screen new varieties of Chaotian pepper with good agronomic characters suitable for planting in Henan,and provide theoretical basis for the improvement of pepper varieties,the difference analysis,correlation analysis,principal component analysis and cluster analysis of fruit characters of 38 Chaotian pepper varieties were carried out.The results showed that the variation coefficient of fruit traits was 9.24％-53.03％,and the variation degree of dihydrocapsa-icin character was the largest.There was significant positive correlation between fruit length,fruit transverse diameter and single fruit mass,fruit length and ventricular number,peel thickness and time of drying,capsaicin content and dihydrocap-saicin content.The results of principal component analysis showed that four principal components were selected,and the cumulative contribution rate of variance was 70.287％,which could reflect most of the information of capsicum agronomic traits.Through phenotypic clustering and liquid chip genotypic data clustering analysis,the relationship between the tested materials was clarified.In summary,the varieties DKP-8418(P31),Haonong 515 Red Green(P28)and DO1844 Olander(P24)showed excellent performance and were suitable for popularization and planting in Henan.
万方数据
维普
