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 |
With the aim to assess the extent of genetic variability, heritability, genetic advance for yield and kernel quality traits in twenty five diverse QPM inbred lines. The crop was raised at Instructional Farm, Tirhut College of Agriculture, DRPCAU, Pusa, Samastipur (Bihar) during kharif 2018.The trail was set up in randomized block design with three replications having plot size of 1.5 x 4.0 = 6 m2. Analysis of variance revealed significant differences for 11 characters studied among the genotypes. The characters studied were days to 75 % tasseling, days to 75% silking, days to 75% brown husk, Plant height (cm), Ear height (cm), Ear length (cm), Ear girth (cm), Tassel length (cm), Number of kernel rows per ear, Number of kernels per row and Grain yield (Kg/ha). Genetic variability parameter showed that phenotypic coefficient of variation (PCV) was higher than the respective genotypic coefficient of variation (GCV). High magnitude of GCV and PCV was observed for Grain yield (kg/ha) indicating the importance of these traits in evolution and selection of inbred lines for yield improvement under maize breeding programme. Data recorded for heritability showed that high heritability accompanied with high genetic advance as percent of mean was recorded for ear length (cm), plant height, ear height and grain yield (kg/ha) indicating effectiveness of selection due to preponderance of additive gene action and breeder may consider these traits as main selection criteria.
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