Identification of superior lines and cross combinations of King chilli (Capsicum chinense) for suitablity in north-eastern hill region

M BILASHINI  DEVI; ANJANI KUMAR  JHA; HAMMYLLIENDE  TALANG; H  RYMBAI; M BISHONATH  SINGH; S R  ASSUMI; VANLALRUATI; V K  VERMA

doi:10.56093/ijas.v96i6.173414

Authors

M BILASHINI DEVI ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India
ANJANI KUMAR JHA ICAR-Directorate of Knowledge Management in Agriculture, Krishi Anusandhan Bhawan-I, Pusa, New Delhi 110 012, India https://orcid.org/0009-0002-7134-4540
HAMMYLLIENDE TALANG ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India
H RYMBAI ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India
M BISHONATH SINGH ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India
S R ASSUMI ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India
VANLALRUATI ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India
V K VERMA ICAR-Research Complex for North Eastern Hill Region, Umroi Road, Umiam 793 103, Meghalaya, India

https://doi.org/10.56093/ijas.v96i6.173414

Keywords:

Combining Ability, GCA, King Chilli, SCA

Abstract

The improvement of yield and quality traits in King chilli (Capsicum chinense Jacq.) is a major objective in breeding programmes, particularly due to the ever increasing demand of this chilli species because of high capsaicin content. However, the complex inheritance of these traits and limited information on suitable parental combinations pose challenges in developing superior hybrids. The present study estimated the combining ability effects for identifying the lines and cross combinations, superior in terms of yield, its contributing traits and quality parameters. The variances for general combining ability (GCA) and specific combining ability (SCA) were highly significant reflecting the role of additive and non-additive gene effects in the expression of traits studied. More prominent additive gene effects were also observed as indicated by relatively higher magnitude of variance for GCA for the yield, contributing and quality traits studied. The lines RCML11 and RCNL1 were observed to be the best general combiners for yield, while RCML6 for earliness; RCML2 and RCML4 for capsaicin content. Cross combinations, viz. RCML-9 × RCNL-1; RCML-11 × RCNL-1, RCML-6 × RCML-11 and RCML-3 × RCML-9 were identified as promising combinations with respect to yield and capsaicin content. The promising parents and cross combinations identified in the present study can be effectively utilised in hybrid breeding programmes to develop high-yielding and quality-enhanced King chilli hybrids with broader agronomic adaptability.

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