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 | Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
07/01/2015 |
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Data da última atualização: |
07/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FONSECA, A. F. A. da.; SEDIYAMA, T.; CRUZ, C. D.; SAKIYAMA, N. S.; FERRÃO, R. G.; FERRÃO, M. A. G.; BRAGANÇA, S. M. |
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Afiliação: |
Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café; Romário Gava Ferrão, Incaper; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Scheilla Marina Bragança, Incaper. |
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Título: |
Repeatability and number of harvests required for selection in robusta coffee. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Crop Breeding in Applied Biotechnology, Viçosa, MG, v. 4, n. 3, p. 325-329, Sept. 2004 |
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DOI: |
10.12702/1984-7033.v04n03a10 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n evaluations; and to determine the number of phenotypic measures required in each plant to obtain an adequate precision level for an efficient discrimination of the genotypes. The coefficients of repeatability and determination were estimated based on four harvests of 80 genotypes. Highest estimates of the repeatability coefficient were obtained by the method of the principal components derived from the matrix of covariances, which expresses the correlation between each measurement pair. The prediction precision of the real individual value ranged from 65.32 to 81.59%, and remained practically unchanged from the sixth harvest on.
Este trabalho objetivou estimar o coeficiente de repetibilidade da produção de grãos em Coffea canephora, por três métodos, visando quantificar a precisão das medidas, predizer o valor real do indivíduo com base em n avaliações e determinar o número de medidas fenotípicas que devem ser tomadas em cada indivíduo para que se obtenha o nível de precisão adequado na discriminação eficiente de genótipos. Os coeficientes de repetibilidade e de determinação foram estimados com base em quatro colheitas de 80 genótipos. As maiores estimativas do coeficiente de repetibilidade foram obtidas pelo método dos componentes principais obtidos da matriz de covariâncias, que considera a correlação entre cada par de medições. A precisão na predição do valor real dos indivíduos variou de 65,32 a 81,59%, e tornou-se praticamente inalterada a partir da sexta colheita. MenosThis study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n evaluations; and to determine the number of phenotypic measures required in each plant to obtain an adequate precision level for an efficient discrimination of the genotypes. The coefficients of repeatability and determination were estimated based on four harvests of 80 genotypes. Highest estimates of the repeatability coefficient were obtained by the method of the principal components derived from the matrix of covariances, which expresses the correlation between each measurement pair. The prediction precision of the real individual value ranged from 65.32 to 81.59%, and remained practically unchanged from the sixth harvest on.
Este trabalho objetivou estimar o coeficiente de repetibilidade da produção de grãos em Coffea canephora, por três métodos, visando quantificar a precisão das medidas, predizer o valor real do indivíduo com base em n avaliações e determinar o número de medidas fenotípicas que devem ser tomadas em cada indivíduo para que se obtenha o nível de precisão adequado na discriminação eficiente de genótipos. Os coeficientes de repetibilidade e de determinação foram estimados com base em quatro colheitas de 80 genótipos. As maiores estimativas do coeficiente de repetibilidade foram obtidas pelo método dos componentes principais obtidos da matriz d... Mostrar Tudo |
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Thesaurus NAL: |
Coffea canephora; Genetic improvement; Repeatability; Robusta coffee. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02528naa a2200253 a 4500
001 1004804
005 2015-01-07
008 2004 bl uuuu u00u1 u #d
024 7 $a10.12702/1984-7033.v04n03a10$2DOI
100 1 $aFONSECA, A. F. A. da.
245 $aRepeatability and number of harvests required for selection in robusta coffee.$h[electronic resource]
260 $c2004
520 $aThis study aimed to estimate the repeatability coefficient of the grain yield in Coffea canephora by three methods: to quantify the precision of the measurements; to predict the real value of an individual based on n evaluations; and to determine the number of phenotypic measures required in each plant to obtain an adequate precision level for an efficient discrimination of the genotypes. The coefficients of repeatability and determination were estimated based on four harvests of 80 genotypes. Highest estimates of the repeatability coefficient were obtained by the method of the principal components derived from the matrix of covariances, which expresses the correlation between each measurement pair. The prediction precision of the real individual value ranged from 65.32 to 81.59%, and remained practically unchanged from the sixth harvest on. Este trabalho objetivou estimar o coeficiente de repetibilidade da produção de grãos em Coffea canephora, por três métodos, visando quantificar a precisão das medidas, predizer o valor real do indivíduo com base em n avaliações e determinar o número de medidas fenotípicas que devem ser tomadas em cada indivíduo para que se obtenha o nível de precisão adequado na discriminação eficiente de genótipos. Os coeficientes de repetibilidade e de determinação foram estimados com base em quatro colheitas de 80 genótipos. As maiores estimativas do coeficiente de repetibilidade foram obtidas pelo método dos componentes principais obtidos da matriz de covariâncias, que considera a correlação entre cada par de medições. A precisão na predição do valor real dos indivíduos variou de 65,32 a 81,59%, e tornou-se praticamente inalterada a partir da sexta colheita.
650 $aCoffea canephora
650 $aGenetic improvement
650 $aRepeatability
650 $aRobusta coffee
700 1 $aSEDIYAMA, T.
700 1 $aCRUZ, C. D.
700 1 $aSAKIYAMA, N. S.
700 1 $aFERRÃO, R. G.
700 1 $aFERRÃO, M. A. G.
700 1 $aBRAGANÇA, S. M.
773 $tCrop Breeding in Applied Biotechnology, Viçosa, MG$gv. 4, n. 3, p. 325-329, Sept. 2004
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Biblioteca Rui Tendinha (BRT) |
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| Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
|
Registro Completo |
|
Biblioteca(s): |
Biblioteca Rui Tendinha. |
|
Data corrente: |
01/04/2014 |
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Data da última atualização: |
01/09/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
CULIK, M. P.; FORNAZIER, M. J.; MARTINS, D. dos S.; ZANÚNCIO JUNIOR, J. S.; VENTURA, J. A.; PERONTI, A. N. B. G.; ZANUNCIO, J. C. |
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Afiliação: |
Mark Paul Culik, CNPq/Incaper; Mauricio José Fornazier, Incaper; David dos Santos Martins, Incaper; José Salazar Zanuncio Junior, Incaper; Jose Aires Ventura, Incaper; Ana Lúcia B. G. Peronti, UFSCar; José Cola Zanuncio, UFV. |
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Título: |
The invasive mealybug Maconellicoccus hirsutus : lessons for its current range expansion in South America and invasive pest management in general. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Journal of Pest Science, v. 86, n. 3, p. 387-398, 2013. |
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Páginas: |
12 p. |
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ISSN: |
1612-4758 |
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DOI: |
10.1007/s10340-013-0512-z |
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Idioma: |
Inglês |
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Conteúdo: |
The invasive mealybug Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae) is a plant feeding insect believed to be native to Southern Asia or Australia. This mealybug has become established in many regions throughout the world (including the Caribbean and North America) in the past 100 years and is currently expanding its range in South America. Because this insect is of concern as a potential pest of many plant species, this review is provided to summarize knowledge of M. hirsutus based on past research that may be most useful for addressing the current invasion of South America by the species, and to identify gaps in information that may need to be addressed to inhibit the spread of the insect and improve management methods for this and similar organisms. In most areas into which M. hirsutus has expanded its range it is commonly suppressed by native or introduced natural enemies. Therefore, besides preventing introduction, establishment and spread of this potential pest, efforts should be made to determine if natural enemies of M. hirsutus are present in areas of concern (i.e., where the mealybug may be introduced and become established). Such information will enable determination of the need for introduction or augmentation of biological control agents in response to possible entry and establishment of the mealybug in new areas. Methods developed in response to the recent invasion of the Caribbean and North America by M. hirsutus may serve as models for addressing the threat of this and similar invasive pests in South America and elsewhere. MenosThe invasive mealybug Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae) is a plant feeding insect believed to be native to Southern Asia or Australia. This mealybug has become established in many regions throughout the world (including the Caribbean and North America) in the past 100 years and is currently expanding its range in South America. Because this insect is of concern as a potential pest of many plant species, this review is provided to summarize knowledge of M. hirsutus based on past research that may be most useful for addressing the current invasion of South America by the species, and to identify gaps in information that may need to be addressed to inhibit the spread of the insect and improve management methods for this and similar organisms. In most areas into which M. hirsutus has expanded its range it is commonly suppressed by native or introduced natural enemies. Therefore, besides preventing introduction, establishment and spread of this potential pest, efforts should be made to determine if natural enemies of M. hirsutus are present in areas of concern (i.e., where the mealybug may be introduced and become established). Such information will enable determination of the need for introduction or augmentation of biological control agents in response to possible entry and establishment of the mealybug in new areas. Methods developed in response to the recent invasion of the Caribbean and North America by M. hirsutus may serve as models for addressin... Mostrar Tudo |
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Palavras-Chave: |
Biodiversity; Biological control; Geographic distribution; Integrated pest management (IPM); Natural enemies; Neotropical. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02517naa a2200301 a 4500
001 1002576
005 2015-09-01
008 2013 bl --- 0-- u #d
022 $a1612-4758
024 7 $a10.1007/s10340-013-0512-z$2DOI
100 1 $aCULIK, M. P.
245 $aThe invasive mealybug Maconellicoccus hirsutus$blessons for its current range expansion in South America and invasive pest management in general.
260 $c2013
300 $a12 p.
520 $aThe invasive mealybug Maconellicoccus hirsutus (Green) (Hemiptera: Pseudococcidae) is a plant feeding insect believed to be native to Southern Asia or Australia. This mealybug has become established in many regions throughout the world (including the Caribbean and North America) in the past 100 years and is currently expanding its range in South America. Because this insect is of concern as a potential pest of many plant species, this review is provided to summarize knowledge of M. hirsutus based on past research that may be most useful for addressing the current invasion of South America by the species, and to identify gaps in information that may need to be addressed to inhibit the spread of the insect and improve management methods for this and similar organisms. In most areas into which M. hirsutus has expanded its range it is commonly suppressed by native or introduced natural enemies. Therefore, besides preventing introduction, establishment and spread of this potential pest, efforts should be made to determine if natural enemies of M. hirsutus are present in areas of concern (i.e., where the mealybug may be introduced and become established). Such information will enable determination of the need for introduction or augmentation of biological control agents in response to possible entry and establishment of the mealybug in new areas. Methods developed in response to the recent invasion of the Caribbean and North America by M. hirsutus may serve as models for addressing the threat of this and similar invasive pests in South America and elsewhere.
653 $aBiodiversity
653 $aBiological control
653 $aGeographic distribution
653 $aIntegrated pest management (IPM)
653 $aNatural enemies
653 $aNeotropical
700 1 $aFORNAZIER, M. J.
700 1 $aMARTINS, D. dos S.
700 1 $aZANÚNCIO JUNIOR, J. S.
700 1 $aVENTURA, J. A.
700 1 $aPERONTI, A. N. B. G.
700 1 $aZANUNCIO, J. C.
773 $tJournal of Pest Science$gv. 86, n. 3, p. 387-398, 2013.
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