Cluster analysis and principal component analysis studies among different accessions of Grape accessions in Leh district of Ladakh UT

Abstract

Evaluation of grape accessions was carried out from different villages of Leh district on the basis of several morphological characters. Observations were recorded on the basis of growth, foliage and yield of vine using cluster analysis and principle component analysis. The analysis of variance revealed significant differences among accessions for each character under study. Based on Mahalanobis D 2 values the accessions were grouped into five clusters. Cluster-II comprised of maximum of 27 accessions followed by cluster III and cluster V having eight accessions. Mean values of clusters for various growth and yield parameters revealed that cluster-I possessed maximum values for cane diameter (2.03 cm), yield (20.99 kg/vine), length (21.36 cm), breadth (11.12 cm), weight (150.42 g) of bunch, number of bunches/vine (148.75), number of berries/bunch (98.25), length (1.53 cm), breadth (1.33 cm) of berry, acidity (0.23 %) and juice content (89.99 %). Per cent variation (28.17) and eigen root (5.634) were registered maximum values for first component. Cluster I accessions and cluster IV accessions were observed more different from each other and provide better segregants through hybridization and can be taken as one of parent in future breeding programmes.