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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
16/07/1991 |
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Data da última atualização: |
24/01/2025 |
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Autoria: |
ROBERDS, J. H.; NAMKOONG, G. |
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Título: |
Population selection to maximize in a environmental gradient. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, v.77, p.128-134, 1989. |
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Idioma: |
Inglês |
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Conteúdo: |
A theory for determining optimum planting and breeding zones is described. The theory is based on a model consisting of Gaussian response functions for traits that vary in a gradient for a single environmental variable. Environments are assumed to be normally distributed with known mean and variance. Methods are presented for determining parameters of response functions that maximize the expected value for such a trait when two, three and four populations are selected forbreeding or as sources of propagules. Expected value is maximized only when the populations selected have response functions symmetrically arrayed about the mean of the environmental variable. Maximum expected value was shown to increase with increasing number of selected populations at a rate that depends upon the ratio of homostasis to environmental variability. The methods presented are illustrated with data on performance of Scots pine provenances in Sweden. Key words: Response function - Genotype-environment interaction- Seed transfer zones Breeding zones- Scots pine |
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Thesagro: |
Interação Genética; Pinus Sylvestris. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 01519naa a2200157 a 4500
001 1279576
005 2025-01-24
008 1989 bl uuuu u00u1 u #d
100 1 $aROBERDS, J. H.
245 $aPopulation selection to maximize in a environmental gradient.$h[electronic resource]
260 $c1989
520 $aA theory for determining optimum planting and breeding zones is described. The theory is based on a model consisting of Gaussian response functions for traits that vary in a gradient for a single environmental variable. Environments are assumed to be normally distributed with known mean and variance. Methods are presented for determining parameters of response functions that maximize the expected value for such a trait when two, three and four populations are selected forbreeding or as sources of propagules. Expected value is maximized only when the populations selected have response functions symmetrically arrayed about the mean of the environmental variable. Maximum expected value was shown to increase with increasing number of selected populations at a rate that depends upon the ratio of homostasis to environmental variability. The methods presented are illustrated with data on performance of Scots pine provenances in Sweden. Key words: Response function - Genotype-environment interaction- Seed transfer zones Breeding zones- Scots pine
650 $aInteração Genética
650 $aPinus Sylvestris
700 1 $aNAMKOONG, G.
773 $tTheoretical and Applied Genetics$gv.77, p.128-134, 1989.
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| 1. |  | MATTOS, M. L. T.; SANTOS, I. B. dos; CROCHEMORE, A. G.; ALMEIDA, M. T. de; ANDRES, A.; MERTINS, J. F. da S. Biodiversity of microorganisms involved in the biodegradation of pesticides in subtropical freshwater swamp forests in Brazil. In: INTERNATIONAL BIODETERIORATION AND BIODEGRADATION SYMPOSIUM, 14., 2008, Messina. Abstract book. Messina: IBBS, 2008. p. 200.| Tipo: Resumo em Anais de Congresso |
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