Genetic Divergence in Sugarcane Genotypes

摘要: To assess genetic divergence of sugarcane germplasm, an experiment comprising 25 genotypes was conducted at Sugar Crops Research Institute (SCRI), Mardan, Khyber Pakhtunkhwa, Pakistan, in quadruple lattice design during 2008-09. Among the 14 parameters evaluated, majority exhibited significant differences while some showed nonsignificant mean squares. The initial correlation matrix revealed medium to high correlations. Principal Component Analysis (PCA) that there were two principal components accounting for 88% total variation tested breeding material. new named “Vigor”, and “Quality”. Regression (PCR) indicated these accounted 93.64% 7.36% yield, thus signifying role “Vigor” Component. Cluster analysis using Ward’s method on newly created variables 3 clusters a linkage distance 4.5. I III had 11, cluster II genotypes. values Vigor Quality with yield. There no correspondence clustering geographic location It could be concluded from analyses are main i.e. vigor, quality Article American Journal Experimental Agriculture, 3(1): 102-109, 2013 103 maximum utilized as source future selection or hybridization program improvement characters sugarcane.