NARESH, K. D. SEHRAWAT AND YOGENDER KUMAR
Department of Genetics and Plant Breeding,
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : krishanssehrawat@gmail.com)
(Received : 27 February 2023: Accepted : 28 March 2023)
SUMMARY
In any efficient plant breeding programme for an effective selection of economically plant species, genetic variability plays a pivotal role and an imperative survey of it leads to develop high yielding varieties. The present investigation was carried out during rabi 2018-19 at Barley research area, Department of Genetics and Plant Breeding, Chaudhary Charan Singh Haryana Agricultural University, Hisar, Haryana. The experiment was conducted to evaluate 45 genotypes of barley and six checks in an Augmented Design. The analysis of variance showed significant differences among experimental material for all traits. High PCV along with high GCV were observed for the characters such as peroxidase, grain yield per plot, biological yield per plot. High heritability coupled with high genetic advance was recorded for the traits namely peroxidase, dehydrogenase, number of grains per spike, spike length, number of effective tillers per meter, harvest index and grain yield per plot. Grain yield per plot discerned significant correlation with number of grains per spike, 1000 grain weight, biological yield per plot, harvest index and dehydrogenase. Path coefficient analysis revealed maximum direct effect on grain yield per plot employed by biological yield per plot followed by harvest index. The combined study of correlation and path coefficients indicated to the characters namely, biological yield per plot, 1000 grain weight, harvest index and dehydrogenase were the major yield attributing traits.
Key words: Barley, correlation, genetic variability, path analysis