Genetic evaluation of newly synthesized CMS based wheat hybrids for agro- morphological traitsPantnagar Journal of Research, Volume - 18, Issue - 2 ( May-August, 2020)
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A set of thirty national pool hybrids along with six checks were evaluated during Rabi 2016-17 at Seed Breeding Farm, JNKVV, Jabalpur to study the genetic variability and association analyses for fifteen traits. Wide range of variation for all the traits was observed, indicating the presence of adequate genetic variability in the material. High phenotypic and genotypic coefficient of variation was observed for harvest index and grain yield/plant, while moderate for ear weight, number of ears/plant, number of tillers/plant, peduncle length, 1000 grain weight, biological yield/plant and number of spikelets/ear. High heritability coupled with high genetic advance as percent of mean was exhibited by harvest index, grain yield/plant, number of ears/plant, number of tillers/plant, peduncle length, ear weight, 1000 grain weight, biological yield/plant, number of spikelets/spike and canopy temperature. Grain yield/plant revealed significant positive association with ear weight, number of ears/plant, number of spikelets/spike, harvest index and 1000 grain weight. Harvest index imposed highest direct positive effect on grain yield/plant, followed by biological yield/plant, days to heading and plant height. Hybrids PHW 16-6, PHW 16-29, PHW 16-1, PHW 16-26 and PHW 16-10 were found superior over the best check HD 2967 on the basis of grain yield/plant. The result of present study could be exploited in planning and execution of future breeding programme in hybrid wheat.
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