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Estimation of heritability and genetic advance in F2 populations of bread wheat (Triticum aestivum L.) genotypes

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Research Paper 01/02/2020
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Estimation of heritability and genetic advance in F2 populations of bread wheat (Triticum aestivum L.) genotypes

Mitho Kachi, Tanweer Fatah Abro, Jay Kumar Sootaher, Kirshan Kumar Menghwar, Mazhar Ali Mastoi, Tanveer Ali Soomro, Tarique Ahmed Baloch, Waqar Hussain Shah, Muhammad Saleem Chang, Mukesh Kumar Soothar
Int. J. Biosci.16( 2), 286-295, February 2020.
Certificate: IJB 2020 [Generate Certificate]
Key: Bread wheatF2 populationsGenetic advanceHeritability

Abstract

The current research study was conducted to determine the heritability and genetic advance of six F2 bread wheat populations obtained from eight parental varieties for vital diversified yield contributing attributes. The experiment was carried out in a randomized complete block design with three replications. Among genotypes, parents were highly significant at 0.01 probability level for plant height (cm), spike length (cm), grains spike-1, grain weight of main spike (g), grain yield plant-1 (g), seed index (1000 grain weight, g) and biological yield plant-1 (g), whereas in parents, tillers plant-1, spikelets spike-1 and harvest index (%) were non-significant. In case of hybrids, all the traits were highly significant at 0.01 probability level. Among the F2 hybrids, Khirman x Benazir was best in heritability for plant height (87.48%), spike length (84.74%), grain weight of main spike (85.70%) and harvest index (92.29%); Kiran-95 x TD-1 for tillers plant-1 (73.28%); SKD x Blue silver for spikelets spike-1 (91.76%); Moomal x Benazir had the best performance in heritability for grains spike-1 (78.50%) and grain yield plant-1 (77.80%); NIA-Sundar x TD-1 was the best heritability contributor for seed index (96.91%) and biological yield plant-1 (80.21%). These hybrids might be the best choices for the utilization of hybrid crop improvement in bread wheat for the selection of desirable plants from later segregating generations.

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