Data/hora: 07/06/2024 04:36:08

Biblioteca(s): | Embrapa Mandioca e Fruticultura.
Data corrente: | 15/10/2019
Data da última atualização: | 15/10/2019
Autoria: | DINIZ, R. P.; OLIVEIRA, E. J. de.
Afiliação: | RAFAEL P. DINIZ, UFRB; EDER JORGE DE OLIVEIRA, CNPMF.
Título: | Genetic parameters, path analysis and indirect selection of agronomic traits of cassava germplasm.
Ano de publicação: | 2019
Fonte/Imprenta: | Anais da Academia Brasileira de Ciências, v. 91, n.3, e20180387, 2019.
ISSN: | 1678-2690
Idioma: | Inglês
Conteúdo: | This study aimed to estimate genetic parameters and correlations between morphological, agronomic and root quality traits of cassava plants, as well as to study cause and effect relationships through path analysis. A total of 814 genotypes were evaluated from 2011 to 2015. The joint analysis of the data was performed by the mixed models approach. The predicted genetic values of the genotypes were used to estimate the genetic correlations among as well the path analysis. The estimates of heritability of the genotype means ranged from 0.31 (commercial fresh root yield ? CRY) to 0.62 (plant height - PLH). The highest genetic correlation coefficient estimates were observed for starch yield (STY) × total fresh root yield (FRY) (0.97). The results of the path analysis showed that FRY had the highest direct effect on STY, but the indirect selection based on FRY was not efficient to improve the gain of STY.
Thesagro: | Mandioca.
Categoria do assunto: | --
Registro original: | Embrapa Mandioca e Fruticultura (CNPMF)
Exemplares: | CNPMF - (32753-1) - UPC - AP - DD - Publicação digital -  -  - DIS