Data/hora: 04/06/2024 09:06:27

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 09/01/2024
Data da última atualização: | 09/01/2024
Autoria: | COSTA, C. dos S. R.; COSTA, A. E. da S.; LIMA NETO, F. P.; LIMA, M. A. C. de; MARTINS, L. S. S.; MUSSER, R. dos S.
Afiliação: | CRISTINA DOS SANTOS RIBEIRO COSTA, UFRPE; ANTONIO ELTON DA SILVA COSTA, UNIVASF; FRANCISCO PINHEIRO LIMA NETO, CPATSA; MARIA AUXILIADORA COELHO DE LIMA, CPATSA; LUIZA SUELY SEMEN MARTINS, UFRPE; ROSIMAR DOS SANTOS MUSSER, UFRPE.
Título: | Repeatability coefficient for fruit quality and selection of mango hybrids using REML/BLUP analysis.
Ano de publicação: | 2023
Fonte/Imprenta: | Euphytica, v. 219, n. 11, 2023.
DOI: | https://doi.org/10.1007/s10681-023-03249-3
Idioma: | Inglês
Conteúdo: | Mango is a tropical fruit of significant economic, social, and nutritional importance. However, the low diversity of commercial mango orchards in Brazil highlights the need to broaden the genetic base of this crop. From this perspective, this study aimed to select mango genotypes for cultivation under semi-arid conditions using the mixed model methodology: restricted maximum likelihood/best linear unbiased prediction (REML/BLUP). Two hundred and ninty-two genotypes originated from the crossing of seven cultivars used as female parent (’Coquinho’, ’Espada’, ’Haden’, ’Keitt’, ’Winter’, ’Palmer’, and ’Van Dyke’) and ’Tommy Atkins’ as male parent were evaluated over two crop seasons using fifteen traits related to fruit quality. The statistical analyses were performed with the software Selegen. The repeatability coefficient estimates (r) ranged from 0.06 to 0.97, and were considered high for most variables. The selective accuracy predicted by REML for the evaluated parameters ranged from 0.25 to 0.98, revealing a good degree of confidence in the inferences. With the application of a selection intensity of 30% it was possible to obtain genetic gain (%) for all evaluated traits. Twelve genotypes were selected as the most promising using the minimum selection indices proposed in this study, showing higher mean values for all evaluated traits. These genotypes can be selected for new stages of the mango breeding program in the Brazilian semi-arid region.
Palavras-Chave: | Modelos mistos; Precisão seletiva.
Thesagro: | Fruta Tropical; Genótipo; Manga; Mangifera Indica.
Thesaurus Nal: | Mangoes; Tropical and subtropical fruits.
Categoria do assunto: | X Pesquisa, Tecnologia e Engenharia
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (60789-1) - UPC - AP - DD -  -  -  - DIS