Assessment of combining ability for yield and quality components in hot pepper (Capsicum annuum L.)

Abstract

Six parental genotypes and their thirty F 1 hybrids in a full diallel cross system with reciprocals, were used in the present study to estimate combining ability for five quantitative and five qualitative traits in hot pepper. The mean sum of squares due to general combining ability (GCA), specific combining ability (SCA) and reciprocal combining ability (RCA) were significant for all the characters which suggest that these parents could have performed differently in different combinations indicating interallelic interactions. All the traits studied exhibited greater SCA variance than GCA, suggesting that these traits are controlled by non-additive gene action. Analysis of the GCA effects of parents for various traits revealed that LCA625, K1 and PKM1 were the best general combiners for almost all the traits. Estimates of SCA effects showed that the hybrids LCA625 × K1, K1 × Arka Lohit and Pusa Jwala × PKM1 were found to be the best combiners for yield and its attributes. The hybrid K1 × Arka Lohit was the best reciprocal combiner for quality parameters based on its better mean performance and combining ability. These results suggest that commercial production of hot pepper hybrids and isolation of pure lines from these hybrids is a possible way to enhance the yield and fruit quality.Additional key words: chilli; growth; capsaicin; dry yield; GCA; SCA; RCA Authors' contributions: Designed the study: LV, SD, JJA and GP. Data collection, field work and statistical analysis: RN. Technical and material support: LV and SD. Contributed analysis tools: JJA and GP. All authors read and approved the final manuscript.Correspondence should be addressed to Rohini Narayanasamy: rohizna@gmail.com

Estimation of genetic variability, GCA and SCA effects for development of early and high yielding bell pepper hybrids suitable for protected cultivation

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Total phenolics, flavonoids, antioxidant activity, and α-glucosidase inhibitory activity of ornamental pepper and several other lines

“…The mean genotype values for all observed biochemical parameters showed significant differences which could be the basis for the DMRT test. Further testing could be carried out, if the ANOVA results were significantly different (Rohini et al, 2017). The replications in Table 2 showed no significant difference, indicating that the results of the biochemical parameter test were stable in the tested genotypes.…”

Studies on Physio-chemical Properties of Maintainer, Restorer Lines and Hybrids of Chilies (Capsicum annuum L.)

“…Combining ability is useful in predicting the performance of hybrids. Combining ability analysis identifies elite parents which are general combiners over a series of cross combinations and good specific combiners to exploit heterosis [16,17]. Heterosis results from heterozygosity [18].…”