Variance components and heritability of seeds weight of peach palm (Bactris gasipaes Kunth.)

Authors

  • Antonio Nascim Kalil Filho Embrapa Florestas
  • José Alfredo Sturion Embrapa Florestas

Keywords:

Effective effects, Genetic gains

Abstract

This work aimed to analyze the performance of peach palm progenies seeds and to estimate genotypic values (additive and dominant effects) and heritability in the broad sense for seed weight collected in 40 trees. Heritability in the broad sense and not in the narrow sense was considered because a major amount of the variability for seed weight arises from the mother trees. The analysis of variance showed highly significant differences between progenies for seed weight. Heritability in the broad-sense was 0.95. The genetic values accumulated in the ten better trees ranged from 1.73 to 0.25, while genetic percentage gains ranged from 68% to 23%, showing a high amount of genetic variability for seed weight. This characteristic is potentially related to early development that can be considered in a selection program.

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References

MÔRO, J. B. Produção de palmito de pupunha no nordeste do Brasil: variabilidade genética e desenvolvimento de cultivares. In: QUEIROZ, M .A. de; GOEDERT, C. O.; RAMOS, S. R. R. (Ed.). Recursos genéticos e melhoramento de plantas para o Nordeste Brasileiro (on line): Versão 1.0. Petrolina: Embrapa Semi-Árido; Brasília: Embrapa Recursos Genéticos e Biotecnologia, 1999. Disponível em: <www.cpatsa.embrapa.br/livrorg/temas.html>. Acesso em 2002.
RESENDE, M. D. V. de; OLIVEIRA, E. B. de. Sistema Selegen: seleção genética computadorizada para o melhoramento de espécies perenes. Pesquisa Agropecuária Brasileira, Brasília, v. 32, n. 9, p. 931-939, 1997.
YUYAMA, K.; CHAVEZ-FLORES, W. B. Comportamento de progênies de meioirmãos de pupunheira (Bactris gasipaes, Kunth.). Revista Brasileira de Fruticultura, v. 18, n. 1, p. 93-98.

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Published

2003-06-30

How to Cite

KALIL FILHO, Antonio Nascim; STURION, José Alfredo. Variance components and heritability of seeds weight of peach palm (Bactris gasipaes Kunth.). Pesquisa Florestal Brasileira, [S. l.], n. 46, p. 85–90, 2003. Disponível em: https://pfb.sede.embrapa.br/pfb/article/view/1620. Acesso em: 20 apr. 2025.

Issue

No. 46 (2003): jan./jun.

Section

Scientific Notes

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