Author (S): M. Amiruzzaman*, M. N. Amin, M. Z. A. Talukder, A. Ahmed  and M. R. Ali
*Correspondence author;


Twenty five yellow grain maize inbred lines were evaluated at the Bangladesh Agricultural Research Institute, Joydebpur during rabi 2009-2010 following alpha lattice design to study the genetic divergence using Mahalanobis’s D2 and Rao’s canonical variate analysis for eleven parameters. The twenty five inbreds formed five distinct clusters. The intra-cluster distance was more or less low, indicating that the genotypes within the same clusters were closely related. The highest inter-cluster distance was observed between cluster I and V and the lowest between cluster II and III. The cluster III and V each contained the highest number of genotypes. Cluster V showed the highest mean values for kernel yield and all the yield contributing traits except days to pollen shedding, silking and 1000-kernel weight. Cluster I had the lowest mean values for plant and ear height and maturity traits. Days to silking, ear length, number of kernels row-1, 1000-kernel weight and kernel yield showed maximum contribution towards total divergence among different characters. Based on medium to high inter-cluster distance, per se performances and desirable traits, fourteen yellow inbred lines viz. BIL 77, BIL 97, CML 287, CML 470, CML 480, CML 486, CZ 2370-22-2, CZ 2370-24-3, CZ 2370-28-2, CZ 2370-31-3, IPB 911-2, IPB 911-22, IPB 911-36 and IPB 911-50 were selected for future hybridization program. Crossing between these genotypes have the chance to obtain higher heterosis with high performing crosses.

Keywords: Genetic diversity, inbred lines and yellow maize.

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