22个小麦品种(系)主要农艺性状和产量的关系分析OA

To reveal the relationship between main agronomic traits and yield in wheat,22 wheat varieties(lines)participat-ing in the national wheat breeding joint in the southern Huang-Huai winter wheat region during 2023-2024 were used as research objects.Eight main agronomic traits(growth period,basic seedling number,maximum stem number,ear-bearing rate,effective ear number,kernels per ear,1 000-kernel weight,and plant height)and yield were subjected to statistical analysis and grey relational analysis.The results showed that the yield of the 22 new wheat varieties(lines)ranged from 8 734.50 kg/hm2 to 9 121.50 kg/hm2,with an average of 8 922.27 kg/hm2.The coefficient of variation for the main agro-nomic traits and yield ranged from 0.21%to 5.21%,among which 1 000-kernel weight had the highest coefficient of varia-tion,and growth period had the lowest.Yield was positively correlated with kernels per ear,growth period,basic seedling number,ear-bearing rate,and 1 000-kernel weight,but negatively correlated with maximum stem number,plant height,and effective ear number.Grey relational analysis further quantified the strength and order of the relationships between main agronomic traits and yield,revealing that growth period had the highest relational degree and weight with the ideal sequence,followed by plant height and 1 000-kernel weight.Comprehensive analysis indicated that varieties such as Wan1390,Xumai18111,and Annong98 had average yields higher than those of other varieties,showing outstanding high-yielding potential.Varieties such as Wan1390,Luomai55,and Annong98 had higher high-stability coefficients than other varieties,demonstrating notable yield stability.