Genetic diversity studies for yield and its contributing traits in brinjal (Solanum melongena L.) Germplasm using PCA
Praveen P Yankanchi, Dhanalashmi TN, Lakshmana D, Prakash K, Onkarappa S
Present experiment was conducted to assess the genetic divergence among brinjal (Solanum melongena L.) germplasm along with 3 check varieties in randomized complete block design (RCBD) with two replications by using Principle component analysis (PCA). Assessing and exploitation of existing variability among germplasm is the first principle of breeding on yield and its traits in brinjal. The principle components plant height, number of primary and secondary branches per plant had eigen values >1 and together accounted for 72.40 % of total variation. Genotypes were grouped into 6 clusters based on multivariate analysis and average value which emphasizing the relative contribution of 13 quantitative traits to total variability. The genotypes, R2580, H-9 and A-3 were grouped under cluster IV and were identified as potential donors that could be passed on to breeders for improvement in brinjal fruit yield. Also it indicates the genotypes grouped under this cluster were highly diversified and the genotype can be used for hybridization.