Effects of genotype and environment and their interaction effects on major agronomic traits in flowering Chinese cabbage
GONG Zeping
LI Ziyu
HUANG Hongdi
GUO Shaolong
GUO Peiguo
XIA Yanshi
Abstract：To screen for high-yield,high-quality,and widely adaptable flowering Chinese cabbage(Brassica campestris L.ssp.chinensis var.Utilis Tsen et Lee.)germplasm,this study analyzed the variation of key agronomic traits and their broad-sense heritability across 173 flowering Chinese cabbage accessions from diverse geographical origins under six planting environments.The genotype-environment interactions were evaluated using GGE biplot analysis.The results revealed extensive variation in eight agronomic traits within the collected flowering Chinese cabbage population:Plant spread,single plant mass,plant height,maximum leaf length,maximum leaf width,maximum petiole length,leaf color,and flowering time.The coefficient of variation(CV)ranged from 6.65％to 80.42％,with the highest average coefficent of variation observed for single plant mass(80.42％)and the lowest for flowering time(6.65％).Broad-sense heritability ranged from 52.94％to 90.12％,with maximum leaf length(90.12％)and maximum petiole length(89.63％)demonstrating strong genetic determination,while plant height exhibited the lowest heritability(52.94％),indicating its susceptibility to environmental influence.Through GGE biplot analysis,14 accessions with consistent adaptability across environments and 21 with stable,desirable phenotypic traits were identified.These findings provide valuable insights for selecting complementary parental lines in breeding programs aimed at developing superior flowering Chinese cabbage varieties.
Keywords：Flowering Chinese cabbageAgronomic traitInteraction of genotype and environmentGGE biplot
Publication Date：2025-10-05
Online Publishing Date：2025-11-05(First online date of this platform, not the publication date of the document)
Pages：15( 117-131 )