Comparative Analysis of Fresh Seed Quality of Spring-sown Vegetable Soybean Varieties in Chengdu Plain
In order to clarify the quality performance of spring-sown vegetable soybean varieties in Chengdu Plain and further select excellent varieties,6 agronomic traits(pod weight per plant,standard pod number,standard pod rate,binomial pod length,binomial pod width,100 fresh weight)and 8 nutritional quality indexes(dry matter,vitamin C,chlorophyll,soluble protein,soluble sugar,free amino acid,crude fiber,crude fat)of 8 vegetable soybean varieties were tested and analyzed.The correlation among the test indexes was discussed,the quality of varieties was classified by systematic cluster analysis,all the test indexes were analyzed by membership function,and the varieties were sorted comprehensively.The results showed that the coefficient of variation of 14 tested indicators ranged from 3.02%to 54.22%among varieties,among which the coefficient of standard pods number,fresh weight of 100 seeds,pods weight per plant,free amino acid,crude fiber,chlorophyll and soluble sugar were all greater than 10%,and the coefficient of variation of free amino acid was the highest(54.22%).There was a certain correlation among the quality traits.The two-seed pod length was negatively correlated with pod weight per plant,the standard pods number was significantly negatively correlated with dry matter and soluble protein.All varieties were divided into 2 categories and 4 subcategories by cluster analysis.The subordination function analysis showed that Chuanxiandou 6 and Jiaoda 133 had the best comprehensive quality,showing good commodity and nutritional flavor.This study clarified the postharvest quality characteristics of spring-sown vegetable soybean varieties in Chengdu Plain,and selected two excellent vegetable soybean varieties,Chuanxiandou 6 and Jiaoda 133,and provides a reference for the selection of excellent varieties.
vegetable soybean varietiesnutritional qualityagronomic traitscomprehensive evaluationaffiliation function analysis
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