Heterosis and combining ability for seed yield and its component traits in Indian mustard (Brassica juncea L.)
Authors
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Nandita Patiyal
Mata Gujri College (Punjabi University) Fatehgarh Sahib, Punjab
Author
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Ravindra Kumar
Mata Gujri College (Punjabi University) Fatehgarh Sahib, Punjab
Author
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Preeti Bhatia
Mata Gujri College (Punjabi University) Fatehgarh Sahib, Punjab
Author
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Vijay Singh
Mata Gujri College (Punjabi University) Fatehgarh Sahib, Punjab
Author
Keywords:
Crosses, heterosis, mustard, yieldAbstract
In a randomized block design, 15 F1s from line x tester crossings with a set of 8 parents and one check were raised during
winter 2022-2023 and 2023-2024 with the goal of estimating heterosis and combining ability. The analysis of variance
revealed that the mean square due to genotypes, parent crosses, and parent’s v/s crosses were significant for all the
traits. On the basis of per se performance and estimates of heterosis, the cross IC-342777 × Maya was found to be most
promising, followed by IC-538719 × Maya for seed yield/plant. The GCA effects of the parents, IC-589670, were significantly
positive for most of the traits. On the other hand, the SCA effects of the IC-342777 × Maya cross combinations were both
significantly positive and negative for seed yield/plant
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