Componentes de variância e seleção de genitores a partir de progênies de imbuia - Ocotea porosa Nees et Martius ex. Nees, Lauraceae

Antonio Nascim Kalil Filho; Elcio Hirano; José Alfredo Sturion; Valderês Aaparecida de Sousa; Luiz Gustvo Marzollo; Filipe Nicolotti; Daniele Ukan

(Ocotea porosa Ness et Martius ex. Nees, Lauraceae) from populations of mixed of mixed Ombrophylous forest

Authors

Antonio Nascim Kalil Filho Embrapa Florestas
Elcio Hirano
José Alfredo Sturion Embrapa Florestas
Valderês Aaparecida de Sousa Embrapa Florestas
Luiz Gustvo Marzollo
Filipe Nicolotti
Daniele Ukan Universidade Estadual do Centro-Oeste

Keywords:

Selection, Germplasm, Genetic gain, Genetic parameters, Breeding

Abstract

Exploitation of imbuya (Ocotea porosa) occurred at the same time of Araucaria angustifolia. Imbuya is threatned of extinction, owns a valuable wood and for these characteristics, Embrapa Florestas, located at Colombo, State of Paraná, Brazil, decided to make efforts for its conservation ex-situ. Collects in Southern Brazil at the localities of Caçador, Canoinhas (State of Santa Catarina), Colombo and Bocaiúva do Sul (State of Paraná) were realized. A complete randomized design was used in 12 months age seedlings. In this experiment, height of thirty one progenies ordered in plots of five plants with four replications was measured. The general mean for height was 16,55 cm. The additive genetic variance estimate was 72,03, the heritability coefficient estimate in the level of average of progenies was 0,83 and selective accuracy was 0,91. Genetic gain will be 48,9% for the next generation of recurrent selection.

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References

CARVALHO, P. E. R. Espécies florestais brasileiras: recomendações silviculturais, potencialidades e uso da madeira. Colombo: EMBRAPA-CNPF; Brasília: EMBRAPA-SPI, 1994. 639 p.
RESENDE, M. D. V. de. Software SELEGEN - REML/BLUP. Colombo: Embrapa Florestas, 2002a. 67 p. (Embrapa Florestas. Documentos, 77).
RESENDE, M. D. V. de. Genética biométrica e estatística no melhoramento de plantas perenes. Brasília: Embrapa Informação Tecnológica; Colombo: Embrapa Florestas, 2002b. 975 p.

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Published

2004-12-30

How to Cite

KALIL FILHO, Antonio Nascim; HIRANO, Elcio; STURION, José Alfredo; SOUSA, Valderês Aaparecida de; MARZOLLO, Luiz Gustvo; NICOLOTTI, Filipe; UKAN, Daniele. (Ocotea porosa Ness et Martius ex. Nees, Lauraceae) from populations of mixed of mixed Ombrophylous forest. Pesquisa Florestal Brasileira, [S. l.], n. 49, p. 121–124, 2004. Disponível em: https://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/1591. Acesso em: 17 may. 2024.

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No. 49 (2004): jul./dez.

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Scientific Notes

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(Ocotea porosa Ness et Martius ex. Nees, Lauraceae) from populations of mixed of mixed Ombrophylous forest

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