Morpho-agronomic characterization, sample size, and plot size for the evaluation of Capsicum chinense genotypes.

• Autor(a) principal: ALVES, S. R. M.
• Data de Publicação: 2022
• Outros Autores: LOPES, R., MENESES, C., VALENTE, M. S. F., MARTINS, C. C., FERREYRA RAMOS, S., OLIVEIRA, I., FRAXE, T. de J. P., COSTA, L., LOPES, M. T. G.
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
• Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1145896; https://doi.org/10.3390/horticulturae8090785
• topic: Pimenta-de-cheiro; Experimental precision; Capsicum Chinense; Plant breeding

The Amazon is a center of diversity for Capsicum chinense Jacq., with wide genetic and morphological variability, but little exploration has been performed there to facilitate their improvement. This study aimed to characterize and evaluate C. chinense genotypes for the development of cultivars by determining the optimal size of the experimental plot and the minimum sample size to ensure a precise estimation of yield. A total of 23 genotypes were evaluated, and in multivariate analyses, the plants were characterized by 21 morphological descriptors and eight quantitative traits related to biometry and yield. The recommended sample size for fruit evaluation was defined based on simulations with subsample resampling and evaluation of the semi-amplitudes of the confidence interval of the mean estimate.