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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
23/05/2001 |
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Data da última atualização: |
23/05/2001 |
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Autoria: |
FIGUEIREDO, D. J. de; FIGUEIREDO FILHO, A.; FREITAS, J. V. de; BEVILACQUA JUNIOR, V. G. |
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Título: |
A medicao da espessura de casca e sua influencia na determinacao do volume sem casca em arvores de Pinus taeda. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
In: SIMPOSIO INTERNACIONAL "O DESAFIO DAS FLORESTAS NEOTROPICAIS, 1991,Curitiba. O desafio das florestas neotropicais. Curitiba: Universidade Federal do Parana / Freiburg: Universidade Albert Ludwig, 1991. p.428-429. |
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Idioma: |
Português |
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Notas: |
Resumo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00677naa a2200157 a 4500
001 1300924
005 2001-05-23
008 1991 bl uuuu u00u1 u #d
100 1 $aFIGUEIREDO, D. J. de
245 $aA medicao da espessura de casca e sua influencia na determinacao do volume sem casca em arvores de Pinus taeda.
260 $c1991
500 $aResumo.
700 1 $aFIGUEIREDO FILHO, A.
700 1 $aFREITAS, J. V. de
700 1 $aBEVILACQUA JUNIOR, V. G.
773 $tIn: SIMPOSIO INTERNACIONAL "O DESAFIO DAS FLORESTAS NEOTROPICAIS, 1991,Curitiba. O desafio das florestas neotropicais. Curitiba: Universidade Federal do Parana / Freiburg: Universidade Albert Ludwig, 1991. p.428-429.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
22/04/2019 |
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Data da última atualização: |
06/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
JACOBSEN, K.; OMONDI, B. A.; ALMEKINDERS, C.; ALVAREZ, E.; BLOMME, G.; RODRIGUEZ, M. A. D.; ISKRA-CARUANA, M.-L.; OCIMATI, W.; TINZAARA, W.; KUMAR, P. L.; STAVER, C. |
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Afiliação: |
K. JACOBSEN, Royal Museum for Central Africa; B. A. OMONDI, Bioversity International; C. ALMEKINDERS, Wageningen University; E. ALVAREZ, CIAT; G. BLOMME, Bioversity International Addis Office; MIGUEL ANGEL DITA RODRIGUEZ, CNPMF; M.-L. ISKRA-CARUANA, CIRAD; W. OCIMATI, Bioversity International; W. TINZAARA, Bioversity International; P. L. KUMAR, International Institute of Tropical Agriculture; C. STAVER, Bioversity International. |
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Título: |
Seed degeneration of banana planting materials: strategies for improved farmer access to healthy seed. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Plant Pathology, 68, p.207-228, 2019. |
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ISSN: |
1365-3059 |
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Idioma: |
Inglês |
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Conteúdo: |
Vegetatively propagated crops suffer from yield loss and reduced stand density and longevity caused by the build-up of certain pests and pathogens between successive plantings via infected planting material. Here, six seedborne phytosanitary problems of banana are reviewed to evaluate whether a seed degeneration framework is a useful tool to identify approaches to achieve healthier planting materials. Phytoparasitic nematodes and weevils generate gradual declines in yields and in sucker health. Fusarium wilt and banana bunchy top virus cause progressive mat collapse across the field. Symptomless suckers from any mat in infested fields represent a risk of transmitting the disease to a new field. Xanthomonas and ralstonia wilts, due to incomplete systemicity, are intermediate in their threat to yield loss and frequency of transmission in suckers. Losses to banana streak virus are triggered by abiotic stress, although sucker transmission of episomal banana streak virus also contributes. A qualitative equation described here for seed degeneration covers a cycle beginning with the quality and risk factors of the planting material used to plant a new field and ends with the quality and risk factors of the suckers extracted from the field to plant a new field. This review of five planting material multiplication methods commonly used in banana contrasts their differing usefulness to address seed degeneration in the small farm context. It is proposed that initiatives to offset banana seed degeneration should integrate the role of off-farm actors into decentralized initiatives rather than attempt to duplicate national seed certification frameworks from other true seed or vegetatively propagated crops. MenosVegetatively propagated crops suffer from yield loss and reduced stand density and longevity caused by the build-up of certain pests and pathogens between successive plantings via infected planting material. Here, six seedborne phytosanitary problems of banana are reviewed to evaluate whether a seed degeneration framework is a useful tool to identify approaches to achieve healthier planting materials. Phytoparasitic nematodes and weevils generate gradual declines in yields and in sucker health. Fusarium wilt and banana bunchy top virus cause progressive mat collapse across the field. Symptomless suckers from any mat in infested fields represent a risk of transmitting the disease to a new field. Xanthomonas and ralstonia wilts, due to incomplete systemicity, are intermediate in their threat to yield loss and frequency of transmission in suckers. Losses to banana streak virus are triggered by abiotic stress, although sucker transmission of episomal banana streak virus also contributes. A qualitative equation described here for seed degeneration covers a cycle beginning with the quality and risk factors of the planting material used to plant a new field and ends with the quality and risk factors of the suckers extracted from the field to plant a new field. This review of five planting material multiplication methods commonly used in banana contrasts their differing usefulness to address seed degeneration in the small farm context. It is proposed that initiatives to offset banan... Mostrar Tudo |
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Thesagro: |
Banana. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02458naa a2200265 a 4500
001 2108396
005 2019-12-06
008 2019 bl uuuu u00u1 u #d
022 $a1365-3059
100 1 $aJACOBSEN, K.
245 $aSeed degeneration of banana planting materials$bstrategies for improved farmer access to healthy seed.$h[electronic resource]
260 $c2019
520 $aVegetatively propagated crops suffer from yield loss and reduced stand density and longevity caused by the build-up of certain pests and pathogens between successive plantings via infected planting material. Here, six seedborne phytosanitary problems of banana are reviewed to evaluate whether a seed degeneration framework is a useful tool to identify approaches to achieve healthier planting materials. Phytoparasitic nematodes and weevils generate gradual declines in yields and in sucker health. Fusarium wilt and banana bunchy top virus cause progressive mat collapse across the field. Symptomless suckers from any mat in infested fields represent a risk of transmitting the disease to a new field. Xanthomonas and ralstonia wilts, due to incomplete systemicity, are intermediate in their threat to yield loss and frequency of transmission in suckers. Losses to banana streak virus are triggered by abiotic stress, although sucker transmission of episomal banana streak virus also contributes. A qualitative equation described here for seed degeneration covers a cycle beginning with the quality and risk factors of the planting material used to plant a new field and ends with the quality and risk factors of the suckers extracted from the field to plant a new field. This review of five planting material multiplication methods commonly used in banana contrasts their differing usefulness to address seed degeneration in the small farm context. It is proposed that initiatives to offset banana seed degeneration should integrate the role of off-farm actors into decentralized initiatives rather than attempt to duplicate national seed certification frameworks from other true seed or vegetatively propagated crops.
650 $aBanana
700 1 $aOMONDI, B. A.
700 1 $aALMEKINDERS, C.
700 1 $aALVAREZ, E.
700 1 $aBLOMME, G.
700 1 $aRODRIGUEZ, M. A. D.
700 1 $aISKRA-CARUANA, M.-L.
700 1 $aOCIMATI, W.
700 1 $aTINZAARA, W.
700 1 $aKUMAR, P. L.
700 1 $aSTAVER, C.
773 $tPlant Pathology, 68, p.207-228, 2019.
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