Data/hora: 16/06/2024 06:30:35

Provedor de dados: | 65
País: | Brazil
Título: | Genetic parameters in agronomic characters for selection of superior lineages of Ricinus communis L
Autores: | Santos,Laurenice Araujo dos; Silva,Simone Alves; Souza,Deoclides Ricardo de; Araujo,Gilmara de Melo; Almeida,Vanessa de Oliveira; Neves,Cláudia Garcia.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Castor bean plant; Genetic correlation; Heritability; Genetic improvement.
Resumo: | ABSTRACT: Knowledge on the variability and heritability of agronomic characters of interest aid the selection of superior materials. Thus, the objective of this study was to evaluate the genetic parameters of agronomic traits in castor bean plant lineages and to quantify the genetic correlations between them. The study was performed in the experimental area of the Federal University of the Recôncavo da Bahia, Cruz das Almas, Bahia. Seed oil content, vegetative cycle, plant height, and the number and weight of seeds per plant were evaluated in 47 lineages of castor bean seedlings. The coefficient of genetic variation was higher for weight of seeds per plant, revealing greater variability. The broad-sense heritability of individual plots presented a higher value for oil content and a lower value for seed number per plant. Selection precision was moderate for plant height, number and weight of seeds per plant, high for vegetative cycle, and very high for oil content. The genetic parameters allowed superior genotypes to be ranked and selected. Positive correlations between vegetative cycle and plant height, associated with negative correlations for number and weight of seeds, and oil content, allow significant gains for crop productivity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000100400
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20180547
Formato: | text/html
Fonte: | Ciência Rural  v.49 n.1 2019
Fonte: | info:eu-repo/semantics/openAccess