Diversity analysis in Indian mustard (Brassica juncea Czern & Coss.)
Genetic divergence was studied for seed yield and 11 other important yield components in 84 entries/genotypes of Indian mustard (Brassica juncea Czem & Coss.). Cluster analysis partitioned the entries into six clusters. The clustering pattern indicated that all the 28 entries having tetralocular siliqua were accommodated in a single cluster Ⅵ whereas remaining 56 entries with bilocular siliqua were spread over in five clusters (Ⅰ to Ⅴ). Clusters Ⅰ, Ⅱ, Ⅲ and Ⅳ had 27, 4, 17 and 7 entries, respectively. Cluster Ⅴ was a solitary cluster having a single entry. The mean values of the characters in various clusters exhibited that different clusters were superior in respect of different character. The inter-cluster Euclidean2 distance was maximum between clusters Ⅴ and Ⅵ (110.8) followed by clusters Ⅰ and Ⅴ (88.5), clusters Ⅲ and Ⅴ (79.8), clusters Ⅱ and Ⅴ (76.9) and clusters Ⅳ and Ⅴ (64.9). The crosses between genotypes of these diverse clusters might be having more chances of getting desirable segregants. Contribution of different characters towards total genetic divergence revealed highest contribution of seeds/siliqua (10.5％) followed by main raceme length (10.4％), siliquae on main raceme (10.0％), siliqua length (8.5％), primary branches/plant (8.1％) and seed yield (8.1％).
Brassica juncea genetic diversity cluster analysis
B.R.Choudhary Z.S.Solanki S.R.Kumhar
Agricultural Research Station, Rajasthan Agricultural University, Mandor- Jodhpur, India
国际会议
第十二届国际油菜大会( The 12th International Rapeseed Congress)
武汉
英文
386-388
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）