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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 6
First page : (669) Last page : (679)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7165

Genetic Variability, Association and Path Studies in Wheat Germplasm for Yield and Quality Traits in Normal and Heat Stress Environments

Preeti, I. S. Panwar, Vikram Singh, Sourabh* and Kavita Rani

Department of Genetics & Plant Breeding, CCS Haryana Agricultural University, Hisar, Haryana, India
*Corresponding Author E-mail: sourabhjakhar@hotmail.com
Received: 4.11.2018  |  Revised: 9.12.2018   |  Accepted: 16.12.2018  

 ABSTRACT

The present study was conducted to assess genetic variability, correlations and path coefficient for twelve metric traits in 75 diverse indigenous and exotic bread wheat genotypes in timely and late sown conditions. Significant genotypic differences were observed for all the traits studied indicating considerable amount of variation among genotypes. The high genotypic and phenotypic coefficients of variation were observed for sedimentation value, grain yield per plot and harvest index. High heritability and genetic advance was observed for 1000 grain weight (g), grain yield per plot (g), protein (%), sedimentation value (ml) and canopy temperature indicating the scope for these traits improvement through selection. Positive and significant correlation of grain yield per plot was with number of effective tillers per meter, biological yield per plot (g), harvest index (%) and direct effects over dependent trait revealed direct and positiveeffect of harvest index, biological yield per plot (g), effective tillers per meter in both normal and heat stress environment indicating direct selection based on these traits would result in higher breeding efficiency for improving grain yield.

Key words: Correlation, Path analysis, Grain Yield, Canopy Temperature, Heat Stress.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Preeti, I.S. Panwar, Singh, V., Sourabh, and Rani, K., Genetic Variability, Association and Path studies In Wheat Germplasm for Yield and Quality Traits in Normal and Heat Stress Environments, Int. J. Pure App. Biosci.6(6): 669-679 (2018). doi: http://dx.doi.org/10.18782/2320-7051.7165