National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
Genetic Diversity (GD) present in the germplasm is pre-requisite for crop improvement as it helps in the development of superior recombinants. Knowledge about Genetic diversity between the genotype can be utilized for the selection of diverse parents in hybridization to exploit the heterosis. Mahalanobis D² statistics assist in grouping the genotypes into different clusters. A set of trial consisting of 20 inbred lines of maize were grown in the experimental field of IASc. BHU, Varanasi and morphological diversity and genetic variability was assessed. Based on the morphological data a cluster diagram (Through Ward’s similarity coefficient) minimum distance was obtained consisting of a total of two clusters. The diversity analysis through rooted dendrogram revealed the maximum inbreds in cluster 2 and HUZM 152 found to be most diverse among the twenty experimental inbreds. Maximum intra cluster distance obtained in cluster 4 (Eucladian distance) whereas, maximum inter cluster distance found between cluster 2 and 3. Genetic variability studies indicated narrow difference in PCV and GCV for most of the traits. High heritability followed by high genetic advance under selection was found for the traits i.e., plant height and ear height. The inbreds chosen in the present study can be subjected to molecular analysis to confirm the morphological results and can be utilized in obtaining better recombinants.
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