Determination of Combinatorial Ability and Heterosis in Capsicum chinense Jacq., using Line × Tester Analysis Method

• Peña-Yam, Laura P. ^[1] ; Muñoz-Ramírez, Liliana S. ^[2] ; Santana-Buzzy, Nancy ^[3] ; Canto-Flick, Adriana ^[3] ; Núñez-Ramírez, Fidel ^[4] ; Ruisanchez-Ortega, Yohandri ^[1] ; Salomón-Torres, Ricardo ^[1]
  1. [1] Universidad Estatal de Sonora
  2. [2] Centro Universitario de la Ciénega
  3. [3] Centro de Investigación Científica de Yucatán, A.C.
  4. [4] Universidad Autónoma de Baja California, Instituto de Ciencias Agrícolas

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• Localización: Agro Productividad, ISSN-e 2594-0252, Vol. 17, Nº. 11, 1, 2024 (Ejemplar dedicado a: Noviembre (Suplemento)), págs. 3-12
• Idioma: inglés
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  • Objective: Know the combinatory ability and heterosis in yield parameters and fruit quality, in nine genotypes of Habanero Chilli (Capsicum chinense Jacq.). Design/methodology/approach: In order to know the combinatory ability and heterosis in yield parameters and fruit quality, were crossed nine genotypes of Capsicum c hinense Jacq. (Habanero Chilli) in a Line × Tester (7 × 2) mating design. The parental lines and combination of crosses were evaluated in a randomized complete block design with three replications at the Yucatan Scientific Research Center during the 2018 and 2019. Results: The results showed the lines 3 and 7, presented a high and positive general combinatory ability (GCA) for most of the parameters studied, the tester 1 presented a high GCA for yield per plant (YP) with 0.45. The cross L1 × T2 presented the highest value of specific combining ability (SCA) for YP with 0.50. The highest heterosis (171.01%) was observed in the L1 × T1 cross for capsaicin content (CC). Tester 1 was identified as a promising genotype for breeding Capsicum chinense Jacq. Findings/conclusions: Line 7 and Tester 1 was identified as promising genotypes for crop breeding Capsicum chinense Jacq.