Arya, SatyawanHarsh Deep2019-01-112019-01-112018http://krishikosh.egranth.ac.in/handle/1/5810089999The present investigation entitled “Principal component analysis for fodder yield and its related traits in forage sorghum [Sorghum bicolor (L.) Moench]” was carried out during Kharif season of 2017. The observations were recorded for 12 morphological (qualitative and quantitative) and eight quality parameters to assess the genetic diversity and character association in 73 forage sorghum genotypes. Analysis of variance revealed sufficient variability for all the 18 quantitative traits under study. The GCV and PCV estimates were high for plant height, green fodder yield, dry fodder yield, HCN and copper content. High heritability coupled with high genetic advance was observed for traits viz., green fodder yield, dry fodder yield, number of tillers per plant, plant height, leaf breadth, stem diameter, leaf: stem ratio, number of leaves per plant, HCN content, copper content, crude protein, TSS content, zinc content, copper content, manganese content and iron content.The Mahalanobis D2analysis grouped 73 forage sorghum genotypes into seven clusters. The inter cluster distance was observed maximum between cluster IV and cluster VII. Principal component analysis (PCA) transformed the original 18 interrelated variables into seven major principal components those explaining 69.79 per cent of total variation in the data. Varimax rotation enabled loading of all the traits on different principal factors. The first principal factor was closely associated with fodder yield and its contributing traits, whereas principal factor three and four showed high loading for quality parameters.ennullThesis