Comprehensive evaluation of regional trial varieties of medium mature hybrid cotton in the Yellow River Basin based on GYT biplot
The analysis and evaluation of the regional cotton trials for medium-maturing hybrid varieties in the Yellow River Basin provide a scientific basis for optimizing varietal distribution and improving trait characteristics.This study comprehensively evaluated the yield,quality,agronomic traits,and disease resistance of 30 tested varieties in the Yellow River Basin from 2022 to 2023 using the GYT biplot method.An in-depth analysis was conducted on key traits,including lint yield,boll weight,number of bolls per plant,pre-frost yield rate,lint percentage,first fruiting branch node,number of fruiting branches,growth period,plant height,seed index,fiber length,fiber strength,micronaire,fiber elongation,fiber uniformity,Fusarium wilt index,and Verticil-lium wilt index.The joint analysis of variance showed that genotype and environmental effects were highly significant,and most genotype × environment interaction effects were significant or highly significant over the two-year experiment.Notably,the sum of squares for interaction effects exceeded that for genotype effects.Among the tested varieties,ZMS 9B07 demonstrated wider adaptability and higher lint yield compared to the control variety ZMS 9711.Compared to the GT biplot,the GYT biplot method exhibited a higher proportion of explained variation,better model fit,and greater reliability.This method more intuitively displays the characteristics of the tested varieties,providing a valuable reference for the comprehensive evaluation of multiple crop traits in China.
万方数据
维普
