Vol. 7, Issue 1 (2019)
Diallel analysis for study of combining ability for quantitative traits in chilli (Capsicum annuum L. var. acuminatum Fingerh.)
Author(s): Thilak JC, Pant SC, Hegde CB and Paliwal A
Abstract: The study envisaged assessing the general combining ability of the parents and specific combining ability of the hybrids, using diallel fashion (excluding reciprocals). Fifteen hybrids along with their six parents and one check (Arka Harita), Totally 22 genotypes were evaluated for the estimation of combining ability at Vegetable Research and Demonstration Block of college of horticulture, VCSG Uttarakhand University of Horticulture and Forestry, Bharsar during 2016-2017. The experiment was laid out in a Randomized Block Design (RBD) with three replications. The analysis revealed that parents and crosses differed significantly for general and specific combining ability effects. The relative magnitude of gca variances was higher than the sca variance, indicates the role of additive component in the expression of traits like plant height, number of primary branches and stem diameter except days to 50% flowering, days to first fruit harvest and stalk length which was found to be under the control of non-additive gene action. The parent Byadgi Dabbi, G-4 and Pant C-1 exhibited highly significant for plant height, number of primary branches, days to 50% flowering days, Byadgi Kaddi for stem diameter and stalk length were found to be the best general combiner. The crosses Arka Lohit × Pant C-1 for number of primary branches per plant, plant stem girth, days to 50% flowering and stalk length and Arka Lohit × Arka Suphal for number of primary branches per plant and days to first fruit harvest were the best specific combiners. This suggests the usefulness of heterosis breeding or any breeding plan which makes use of specific combining ability effects for improvement in these traits.
Pages: 1750-1752 | 330 Views 61 Downloads
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How to cite this article:
Thilak JC, Pant SC, Hegde CB, Paliwal A. Diallel analysis for study of combining ability for quantitative traits in chilli (Capsicum annuum L. var. acuminatum Fingerh.). Int J Chem Stud 2019;7(1):1750-1752.
