1Faculty of Agricultural Sciences, GLA University, Mathura, 281406 (Uttar Pradesh), India
2Department of Genetics and Plant Breeding, Acharya Narendra Dev University of Agricultutre and Technology, Kumarganj, 224229 (Ayodhya), India
3Indian Institute of Technology, Guwahati-781039, Assam, India
4Department of Plant Pathology, Sardar Vallabhbhai Patel University of Agriculture & Technology, Modipuram Meerut, India
1&5Department of Genetics and Plant Breeding, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur U.P., India
DOI : https://doi.org/10.21276/AATCCReview.2024.12.04.106
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Abstract
Using line × tester analysis, the current research analyses parental genotypes and their
combinations in normal conditions and identifies the genes influencing yield characteristics.
In the present study, 15 diverse genotypes, including 10 lines, 5 testers, and 50 F 1 s hybrids,
were evaluated for 13 morphological and 2 biochemical traits. The results exposed that ability
mean squares were significant for all studied additive and non-additive components. In this
direction, the general combining ability of PBW-343, DBW-39, K-402, K-1317, KRL-210,
and K-68 were higher than the remaining parents. For morphological traits like yield, the top
five crosses were described based on SCA effects, namely, HD-3086 × HD-3171, K-402 × K-
9107, K-1317 × K-9107, HD-2967 × K-0307 and K-402 × K-68 in F 1 generation. In addition,
the high value of heritability was estimated for plant height (77.32%), spike length (32.26%),
biological yield/plant (59.52%), and grain yield/plant (68.76%). However, the moderate
values of heritability were estimated for days to maturity (22.78%) and phenol color reaction
(18.00%). The higher genetic advance was not found for recorded characters; however, a
moderate genetic advance was recorded for grain yield per plant (13.15%) and harvest index
(11.72%). High heritability coupled with moderate genetic advance was recorded for two
characters grain yield per plant and harvest index in F 1 and F 2 generations.