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Registro Completo |
Biblioteca(s): |
Embrapa Soja. |
Data corrente: |
16/10/1995 |
Data da última atualização: |
11/12/2006 |
Autoria: |
HOFFMANN-CAMPO, C.B.; MAZZARIN, R. M. |
Afiliação: |
EMBRAPA-CNPSo. Londrina, PR. |
Título: |
Mecanismos de resistencia da soja: avaliacao de tolerancia. |
Ano de publicação: |
1989 |
Fonte/Imprenta: |
In: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR). Resultados de pesquisa de soja 1988/89. Londrina, 1989. |
Páginas: |
p.70-72. |
Série: |
(EMBRAPA-CNPSo. Documentos, 43). |
Idioma: |
Português |
Palavras-Chave: |
Brasil; Insect; Mecanismo; Mechanism; Pest; Resistance; Soybean; Tolerance; Tolerancia. |
Thesagro: |
Entomologia; Inseto; Pesquisa; Piezodorus Guildinii; Praga; Resistência; Soja. |
Thesaurus Nal: |
Brazil; entomology; research. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00982naa a2200373 a 4500 001 1453082 005 2006-12-11 008 1989 bl uuuu u00u1 u #d 100 1 $aHOFFMANN-CAMPO, C.B. 245 $aMecanismos de resistencia da soja$bavaliacao de tolerancia. 260 $c1989 300 $ap.70-72. 490 $a(EMBRAPA-CNPSo. Documentos, 43). 650 $aBrazil 650 $aentomology 650 $aresearch 650 $aEntomologia 650 $aInseto 650 $aPesquisa 650 $aPiezodorus Guildinii 650 $aPraga 650 $aResistência 650 $aSoja 653 $aBrasil 653 $aInsect 653 $aMecanismo 653 $aMechanism 653 $aPest 653 $aResistance 653 $aSoybean 653 $aTolerance 653 $aTolerancia 700 1 $aMAZZARIN, R. M. 773 $tIn: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR). Resultados de pesquisa de soja 1988/89. Londrina, 1989.
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Embrapa Soja (CNPSO) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
20/02/2019 |
Data da última atualização: |
19/09/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
PONTE, N. H. T. da; SANTOS, R. I. N.; LOPES FILHO, W. R. L.; CUNHA, R. L.; MAGALHAES, M. M.; PINHEIRO, H. A. |
Afiliação: |
NARA HELENA TAVARES DA PONTE, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; RODOLFO INACIO NUNES SANTOS, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; WAGNER ROMULO LIMA LOPES FILHO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; ROBERTO LISBOA CUNHA, CPATU; MARCELO MURAD MAGALHAES, CPATU; HUGO ALVES PINHEIRO, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA. |
Título: |
Morphological assessments evidence that higher number of pneumatophores improves tolerance to long-term waterlogging in oil palm (Elaeis guineensis) seedlings. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Flora, v. 250, p. 52-58, Jan. 2019. |
Idioma: |
Português |
Conteúdo: |
Oil palm (Elaeis guineensis Jacq.) apparently tolerates long-term waterlogging and numerous pneumatophores are evident morphological adaptation. The number of pneumatophores per plant is, however, quite variable. Thus we hypothesized that a higher number of pneumatophores may attenuate the stress effects on root system growth and induce higher tolerance to long-term waterlogging in oil palm seedlings. To test this hypothesis we compared morphological and physiological traits in well-watered (control) and waterlogged plants with 2?10, 30?40, 60?70, and 90?120 pneumatophores after ca. 77 days of waterlogging. Plant height was similar between control and waterlogged plants with 90?120 pneumatophores, but it was 21% lower in plants with 2?10 pneumatophores than in control. The stem diameter and bulb diameter and biomass were 16, 20 and 42% higher in waterlogged plants than in control, independent of number of pneumatophores. Similar number of leaves and leaflets were observed regardless of watering regime and pneumatophore number, but total leaflet area and leaflet biomass were higher in plants with 90?120 pneumatophores than in other plants. Root system biomass was remarkably decreased in waterlogged plants; however, such decreases were more expressive in plants with 2?10 pneumatophores. Leaf water potential, leaf gas exchange and chlorophyll fluorescence were unaffected by waterlogging. Thus, we conclude that waterlogging causes few changes in seedlings? above-ground morphology but remarkably affects root system development, mainly in those plants with lower number of pneumatophores. Regardless of pneumatophores, the stressed oil palm seedlings were able to adjust their leaf water status and gas exchange to cope properly with the imposed waterlogging. MenosOil palm (Elaeis guineensis Jacq.) apparently tolerates long-term waterlogging and numerous pneumatophores are evident morphological adaptation. The number of pneumatophores per plant is, however, quite variable. Thus we hypothesized that a higher number of pneumatophores may attenuate the stress effects on root system growth and induce higher tolerance to long-term waterlogging in oil palm seedlings. To test this hypothesis we compared morphological and physiological traits in well-watered (control) and waterlogged plants with 2?10, 30?40, 60?70, and 90?120 pneumatophores after ca. 77 days of waterlogging. Plant height was similar between control and waterlogged plants with 90?120 pneumatophores, but it was 21% lower in plants with 2?10 pneumatophores than in control. The stem diameter and bulb diameter and biomass were 16, 20 and 42% higher in waterlogged plants than in control, independent of number of pneumatophores. Similar number of leaves and leaflets were observed regardless of watering regime and pneumatophore number, but total leaflet area and leaflet biomass were higher in plants with 90?120 pneumatophores than in other plants. Root system biomass was remarkably decreased in waterlogged plants; however, such decreases were more expressive in plants with 2?10 pneumatophores. Leaf water potential, leaf gas exchange and chlorophyll fluorescence were unaffected by waterlogging. Thus, we conclude that waterlogging causes few changes in seedlings? above-ground morpholog... Mostrar Tudo |
Palavras-Chave: |
Palma de óleo. |
Thesagro: |
Água; Biomassa; Crescimento; Dendê; Elaeis Guineensis; Morfologia Vegetal. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02588naa a2200265 a 4500 001 2106294 005 2022-09-19 008 2019 bl uuuu u00u1 u #d 100 1 $aPONTE, N. H. T. da 245 $aMorphological assessments evidence that higher number of pneumatophores improves tolerance to long-term waterlogging in oil palm (Elaeis guineensis) seedlings.$h[electronic resource] 260 $c2019 520 $aOil palm (Elaeis guineensis Jacq.) apparently tolerates long-term waterlogging and numerous pneumatophores are evident morphological adaptation. The number of pneumatophores per plant is, however, quite variable. Thus we hypothesized that a higher number of pneumatophores may attenuate the stress effects on root system growth and induce higher tolerance to long-term waterlogging in oil palm seedlings. To test this hypothesis we compared morphological and physiological traits in well-watered (control) and waterlogged plants with 2?10, 30?40, 60?70, and 90?120 pneumatophores after ca. 77 days of waterlogging. Plant height was similar between control and waterlogged plants with 90?120 pneumatophores, but it was 21% lower in plants with 2?10 pneumatophores than in control. The stem diameter and bulb diameter and biomass were 16, 20 and 42% higher in waterlogged plants than in control, independent of number of pneumatophores. Similar number of leaves and leaflets were observed regardless of watering regime and pneumatophore number, but total leaflet area and leaflet biomass were higher in plants with 90?120 pneumatophores than in other plants. Root system biomass was remarkably decreased in waterlogged plants; however, such decreases were more expressive in plants with 2?10 pneumatophores. Leaf water potential, leaf gas exchange and chlorophyll fluorescence were unaffected by waterlogging. Thus, we conclude that waterlogging causes few changes in seedlings? above-ground morphology but remarkably affects root system development, mainly in those plants with lower number of pneumatophores. Regardless of pneumatophores, the stressed oil palm seedlings were able to adjust their leaf water status and gas exchange to cope properly with the imposed waterlogging. 650 $aÁgua 650 $aBiomassa 650 $aCrescimento 650 $aDendê 650 $aElaeis Guineensis 650 $aMorfologia Vegetal 653 $aPalma de óleo 700 1 $aSANTOS, R. I. N. 700 1 $aLOPES FILHO, W. R. L. 700 1 $aCUNHA, R. L. 700 1 $aMAGALHAES, M. M. 700 1 $aPINHEIRO, H. A. 773 $tFlora$gv. 250, p. 52-58, Jan. 2019.
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