Genetic Variability and Selection Parameters for Yield and Its Contributing Traits in Bread Wheat (Triticum aestivum L. em. Thell)

Pawan Kumar Saini

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

S V Singh

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

R K Yadav

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

Lokendra Singh

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

Shweta

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

S K Singh

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

Harshit Tripathi

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

Swapnil Dwivedi

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

Utkarsh Tiwari *

Department of Genetics and Plant Breeding, C.S. Azad University of Agriculture and Technology, Kanpur-208002, Utter Pradesh, India.

*Author to whom correspondence should be addressed.


Abstract

Ten bread wheat genotype and their all possible cross combinations excluding their reciprocals (10 parents+45 F1s+45 F2s) were evaluated in a randomized block design with three replications during Rabi2022-2023 at Student’s Instructional Farm, C. S. Azad University of Agriculture and Technology-208002, Kanpur, U.P to get the extent of variability and related parameters to select effectively for grain yield and quality character. It is the big challenge for researchers to get high grain yield with high protein. The data was recorded on fourteen characters viz., days to heading (50%), days to maturity, plant height (cm), number of productive tillers per plant, chlorophyll content, spike length (cm), number of spikelets per spike, number of grains per spike, weight of grain per spike (g), 1000 grain weight (g), biological yield (g), harvest index (%),protein content (%) and grain yield per plant (g). The variability among parents was highest for days to maturity it ranged from 117.33 to 137.67 with the mean value 126.60. The variation in F1 progenies was highest for plant height ranged from 85.97 to 120.53 with the mean value of 96.71.The variation in F2 progenies was highest for plant height ranged from 83.70 to 120.20 with the mean value of 94.99. The result showed higher estimated values for phenotypic coefficient of variability(PCV) of all the fourteen characters as compared to their corresponding genotypic coefficient of variability (GCV). Highest value of PCV and GCV were noted for grain yield per plantin both generation F1s and F2s except GCV were observed for none of the character F1s. high heritability estimates were recorded for all characters in both generation F1s and F2s.High genetic gain was observed for grain yield per plant followed by biological yield per plant in both generation F1s and F2s.

Keywords: Variability, heritability, genetic advance mean and range, grain yield, plant height, genetic gain, genotypic, biological yield, genetic evaluation, morphological diverse


How to Cite

Saini, P. K., Singh, S. V., Yadav, R. K., Singh, L., Shweta, Singh, S. K., Tripathi, H., Dwivedi, S., & Tiwari, U. (2024). Genetic Variability and Selection Parameters for Yield and Its Contributing Traits in Bread Wheat (Triticum aestivum L. em. Thell). International Journal of Plant & Soil Science, 36(5), 240–252. https://doi.org/10.9734/ijpss/2024/v36i54522

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