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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 3
First page : (32) Last page : (37)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6658

Dissection of Genetic Variability, Correlation and Path Analysis in Wheat (Triticum aestivum L.) Genotypes for Yield and Its Attributes

Yogender Kumar*, O. P. Bishnoi and Vikram Singh
Wheat and Barley Section, Department of Genetics & Plant Breeding, CCS Haryana Agricultural University, Hisar-125004 (Haryana), India
*Corresponding Author E-mail: yogenderkgulia@gmail.com
Received: 25.05.2018  |  Revised: 22.06.2018   |  Accepted: 28.06.2018  

 ABSTRACT

The present investigation was undertaken to study the genetic variability, correlation and path coefficient analysis for 10 metric traits in 46 wheat genotypes under normal sown irrigated conditions at CCS HAU, Regional Research Station, Bawal (Haryana) during rabi 2013-14. Significant genotypic differences were observed for all the traits studied indicating considerable amount of variation among genotypes for each trait. Phenotypic and genotypic coefficients of variation were highest in number of grains per spike followed by number of tillers per meter row, harvest index, biological yield and grain yield. Moderate to high heritability in broad sense estimated for all the traits except biological yield which exhibited low heritability. Moderate to high heritability coupled with high genetic advance as per cent of mean was observed for number of grains per spike, number of tillers per meter row, grain yield, harvest index and 1000-grain weight, indicating the importance of these traits in selection and crop improvement. Grain yield was significant and positively correlated with harvest index, biological yield and 1000-grain weight. Path coefficient analysis revealed highest positive direct effect of harvest index and   biological yield on grain yield. Hence, due emphasis should be given to harvest index, biological yield and 1000-grain weight for genetic improvement of grain yield in wheat.

Key words: Genetic variability, Correlation, Path analysis, Wheat

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

Cite this article: Kumar, Y., Bishnoi, O.P. and Singh, V., Dissection of Genetic Variability, Correlation and Path Analysis in Wheat (Triticum aestivum L.) Genotypes for Yield and Its Attributes, Int. J. Pure App. Biosci.6(3): 32-37 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6658