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| Registros recuperados : 62 | |
| 7. |  | RAMOS, N. P.; MANDONCA, E. A. F.; PAULA, R. C. Germinacao de sementes de ipe-felpudo (Zeyhera tuberculosa (Vell) Burr.) sob diferentes temperaturas, substratos, e regimes de umedecimento. Informativo ABRATES, Brasilia, v. 11, n. 2, p. 262, 2001.| Biblioteca(s): Embrapa Cerrados. |
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| 8. | | BIRUEL, R. P.; AGUIAR, I. B.; PAULA, R. C. Germinação de sementes de pau-ferro (Caesalpinia ferrea var. leiostachya Benth.) armazenadas em diferentes condições de ambiente. In: INTERNATIONAL CONGRESS AND EXHIBITION ON FOREST, 5., 1999, Curitiba. Forest 99: [resumos]. Rio de Janeiro: BIOSFERA, 1999. 1 CD-ROM. Autoria bilíngue: CONGRESSO E EXPOSICAO INTERNACIONAL SOBRE FLORESTAS, 5., 1999, Curitiba.| Biblioteca(s): Embrapa Florestas. |
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| 20. | | ALVES, E. U.; PAULA, R. C.; OLIVEIRA, A. P.; BRUNO, R. L. A.; DINIZ, A. A. Germinação de sementes de Mimosa caesalpiniaefolia Benth, em diferentes substratos e temperaturas. Revista Brasileira de Sementes, Brasilia, v. 24, n. 1, p. 169-178, 2002.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 62 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
19/08/2014 |
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Data da última atualização: |
01/06/2017 |
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Autoria: |
PAVAN, B. E.; PAULA, R. C. de; PERECIN, D.; SCARPINATI, E. A.; CANDIDO, L. S. |
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Afiliação: |
BRUNO ETTORE PAVAN; RINALDO CÉSAR DE PAULA; DILERMANDO PERECIN; EDIMAR APARECIDO SCARPINATI; LILIAM SILVIA CANDIDO. |
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Título: |
Early selection in open-pollinated Eucalyptus families based on competition cavariates. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 6, p. 483-492, jun. 2014. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Seleção precoce em famílias de polinização aberta de Eucalyptus com base em covariáveis de competição. |
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Conteúdo: |
The objetive of this work was to evaluate the influence of intergenotypic competition in open?pollinated families of Eucalyptus and its effects on early selection efficiency. Two experiments were carried out, in which the timber volume was evaluated at three ages, in a randomized complete block design. Data from the three years of evaluation (experiment 1, at 2, 4, and 7 years; and experiment 2, at 2, 5, and 7 years) were analyzed using mixed models. The following were estimated: variance components, genetic parameters, selection gains, effective number, early selection efficiency, selection gain per unit time, and coincidence of selection with and without the use of competition covariates. Competition effect was nonsignificant for ages under three years, and adjustment using competition covariates was unnecessary. Early selection for families is effective; families that have a late growth spurt are more vulnerable to competition, which markedly impairs ranking at the end of the cycle. Early selection is efficient according to all adopted criteria, and the age of around three years is the most recommended, given the high efficiency and accuracy rate in the indication of trees and families. The addition of competition covariates at the end of the cycle improves early selection efficiency for almost all studied criteria. |
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Palavras-Chave: |
Competição intergenotípica; Intergenotypic competition; Métodos de seleção; Progeny tests. |
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Thesagro: |
Teste de Progênie. |
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Thesaurus NAL: |
Eucalyptus; Selection methods. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/106788/1/Early-selection-in-open.pdf
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|
Marc: |
LEADER 02263naa a2200265 a 4500
001 1992911
005 2017-06-01
008 2014 bl uuuu u00u1 u #d
100 1 $aPAVAN, B. E.
245 $aEarly selection in open-pollinated Eucalyptus families based on competition cavariates.
260 $c2014
500 $aTítulo em português: Seleção precoce em famílias de polinização aberta de Eucalyptus com base em covariáveis de competição.
520 $aThe objetive of this work was to evaluate the influence of intergenotypic competition in open?pollinated families of Eucalyptus and its effects on early selection efficiency. Two experiments were carried out, in which the timber volume was evaluated at three ages, in a randomized complete block design. Data from the three years of evaluation (experiment 1, at 2, 4, and 7 years; and experiment 2, at 2, 5, and 7 years) were analyzed using mixed models. The following were estimated: variance components, genetic parameters, selection gains, effective number, early selection efficiency, selection gain per unit time, and coincidence of selection with and without the use of competition covariates. Competition effect was nonsignificant for ages under three years, and adjustment using competition covariates was unnecessary. Early selection for families is effective; families that have a late growth spurt are more vulnerable to competition, which markedly impairs ranking at the end of the cycle. Early selection is efficient according to all adopted criteria, and the age of around three years is the most recommended, given the high efficiency and accuracy rate in the indication of trees and families. The addition of competition covariates at the end of the cycle improves early selection efficiency for almost all studied criteria.
650 $aEucalyptus
650 $aSelection methods
650 $aTeste de Progênie
653 $aCompetição intergenotípica
653 $aIntergenotypic competition
653 $aMétodos de seleção
653 $aProgeny tests
700 1 $aPAULA, R. C. de
700 1 $aPERECIN, D.
700 1 $aSCARPINATI, E. A.
700 1 $aCANDIDO, L. S.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 49, n. 6, p. 483-492, jun. 2014.
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