DIALLEL ANALYSIS IN CHILLI (Capsicum annuum L.)
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Date
2023-05-27
Authors
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Journal ISSN
Volume Title
Publisher
UHF,NAUNI
Abstract
ABSTRACT
The present investigation titled, “Diallel analysis in chilli (Capsicum annuum L.)”
was carried out at the Experimental Farm, Department of Vegetable Science, Dr YS Parmar
University of Horticulture and Forestry, Nauni, Solan, HP, India during Kharif of 2021 and
2022 to study the mean performance, heterosis, combining ability including reciprocal
effects, and nature and magnitude of gene action for yield and quality traits in chilli. The
experimental material used in the present study comprised of seven diverse chilli genotypes,
which were crossed in full diallel during Kharif, 2021 to obtain forty-two cross combinations.
The forty-two F1 crosses along with seven parental genotypes and check DKC-8 were
evaluated in RCBD with three replications during Kharif, 2022. The analysis of variance
showed highly significant differences among the genotypes for all the traits under study. The
top five hybrid combinations for fruit yield per plant (g) showing significant positive
heterosis over standard check and better parent were UHF-Selection-2 × UHF-CHI-17
(718.69g), UHF-Selection-2× UHF-Selection-14 (702.52g), UHF-CHI-17 × UHF-CHI-11
(678.89g), UHF-Selection-14× UHF-CHI-11 (656.38g), UHF-Selection-14 × UHF-CHI-13
(570.81g). The parental genotypes; UHF-Selection-2 and UHF-Selection-14 were superior
based on their general combining ability effects. The crosses UHF-Selection-2 × UHF-CHI-
17 and UHF-Selection-14 × UHF-CHI-11 were good specific combiners for most of the
traits. The reciprocal specific combining ability effects were significant for all the characters
studied and the reciprocal crosses viz., UHF-CHI-17 × UHF-Selection-2 and UHF-Selection-
2 × UHF-Selection-14 were good reciprocal specific combiners for the majority of traits. The
non-additive gene action was predominant for the inheritance of the majority of the
characters.