Genotype x environment interaction on experimental hybrids of chili pepper

• Published in: Genetics and molecular research Vol. 16; no. 2; p. 1
• Main Authors: Cabral, N S S, Medeiros, A M, Neves, L G, Sudré, C P, Pimenta, S, Coelho, V J, Serafim, M E, Rodrigues, R
• Format: Journal Article
• Language: English
• Published: Brazil Fundacao de Pesquisas Cientificas de Ribeirao Preto 20-04-2017
• Subjects: Capsicum - genetics; Capsicum - growth & development; Fruit - genetics; Fruit - growth & development; Gene-Environment Interaction; Genotypes; Hybridization, Genetic; Hybrids; Pulp; Quantitative Trait, Heritable; Seeds; Vegetables; Brazil
• ISSN: 1676-5680; 1676-5680
• DOI: 10.4238/gmr16029551

In Brazil, cultivation of hybrid plants comprise near 40% of the area grown with vegetables. For Capsicum, hybrids of bell and chili peppers have already exceeded 50% and over 25% of all are commercialized seeds. This study aimed to evaluate new pepper hybrids in two environments, Cáceres, MT, and Campos dos Goytacazes, RJ, Brazil. Nine experimental hybrids of C. baccatum var. pendulum were tested and trials were performed in a randomized block design, with three replications and eight plants per plot. In each environment, plants were assessed for canopy diameter, plant height, number of fruit per plant, mean fruit mass per plant, fruit length and diameter, pulp thickness, and content of soluble solids. Seven of the eight traits have differed significantly due to environment variation. Furthermore, genotype and environment interaction was highly significant for number of fruit per plant, mean fruit mass per plant, fruit length, and fruit diameter. Choosing a hybrid to be grown in one of the studied locations must be in accordance with the sought characteristics since there is a complex interaction for some studied traits.