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 |
Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture & Technology, Kanpur - 208002 (U.P.), India
The present study was carried out to evaluate fifty wheat genotypes of different eco-geographic origin. Data on eight quantitative characters viz., Plant height, reproductive tillers/plant, length of spike, spikelets/spike, days to maturity, grains/spike, test weight and grain yield/plant were recorded. Analysis of variance (ANOVA) revealed significant differences among the genotypes for almost all the traits under study. The genotypes showed moderate to high level of genotypic coefficients of variance (GCV) and phenotypic coefficients of variance (PCV). In general, phenotypic coefficient of variance was found to be higher than their genotypic coefficient of variance but difference was quite meager, indicating negligible environmental influence on the expression of the characters. Higher estimate of GCV (15.55) was recorded for length of spike followed by grain yield per plant (14.91). The higher value of heritability was observed for test weight (99.18) followed by plant height (96.31), grains/spike (92.01), length of spike (91.34), reproductive tillers/plant (90.89), grain yield/plant (90.40), spikelets/spike (88.02) and lowest value of heritability was observed for days to maturity (79.56). The maximum value of genetic advance as percent of mean was recorded for length of spike (30.62) followed by grain yield/plant (29.20), reproductive tillers/plant (21.10) and plant height (20.74). The characters such as length of spike, reproductive tillers per plant, grain yield per plant and plant height, showing high heritability and high genetic advance would be more effective selection parameters, since they showed very less environmental influence.
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