Parâmetros genéticos e ganho com a seleção para populações de pinhão manso (Jatropha curcas)

Ana Cristina Pinto Juhász; Danielle de Lourdes Batista Morais; Bruno Oliveira Soares; Samy Pimenta; Hudson de Oliveira Rabello; Marcos Deon Vilela de Resende

Genetic evaluation and genetic gains with the selection for Jatropha curcas populations

Authors

Ana Cristina Pinto Juhász Empresa de Pesquisa Agropecuária de Minas Gerais, Unidade Regional do Triangulo e Alto Paranaíba
Danielle de Lourdes Batista Morais BIOJAN
Bruno Oliveira Soares Universidade Estadual de Montes Claros
Samy Pimenta Universidade Estadual de Montes Claros
Hudson de Oliveira Rabello Universidade Estadual de Montes Claros
Marcos Deon Vilela de Resende Embrapa Florestas

Keywords:

Variability, heritability, accuracy, genetic gain.

Abstract

This work aimed at estimating genetic parameters from the vegetative stage in five populations from Jatropha curcas L. The half sib progenies were cultivated at Biojan farm, in Janaúba, MG. Plant height, stem diameter, number of branches and crown projection were assessed in all plants at three and six months old. In population 2, there was no genetic variability for all traits evaluated. The genetic gains estimated with the selection from the ten best individuals in other populations were 4% to 8% for plant height (population 1 and 4), 5% to 7% for stem diameter (population 1 and 5), 14% to 25% for the number or branches (population 3 and 5) and 9% for crown projections in population 4. According to the results obtained from this study, these populations are adequate for the continuity of the breeding program of this species in the region.

doi: 10.4336/2010.pfb.30.61.25

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Published

2010-05-03

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JUHÁSZ, Ana Cristina Pinto; MORAIS, Danielle de Lourdes Batista; SOARES, Bruno Oliveira; PIMENTA, Samy; RABELLO, Hudson de Oliveira; RESENDE, Marcos Deon Vilela de. Genetic evaluation and genetic gains with the selection for Jatropha curcas populations. Pesquisa Florestal Brasileira, [S. l.], v. 30, n. 61, p. 25, 2010. Disponível em: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/83. Acesso em: 18 may. 2024.

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Vol. 30 No. 61 (2010): jan./mar.

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Genetic evaluation and genetic gains with the selection for Jatropha curcas populations

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