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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
04/07/1996 |
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Data da última atualização: |
04/07/1996 |
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Autoria: |
ANDERSON, C. A.; LADIGES, P. Y. |
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Título: |
Lime-chlorosis and the effect of fire on the growth of three seedling populations of Eucalyptus obliqua L'Herit. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Australian Journal of Botany, v.30, p.47-66, 1982. |
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Idioma: |
Inglês |
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Conteúdo: |
A field experiment confirmed the existence of intraspecific variation in E. obliqua in relation to edaphic factors. A population from an acids soil showed severe chlorosis, slow growth and low survival when grown on more alkaline calcareous soils, but was the fastet-growing population on fertile acidic soils. Seedling deaths in the field suggested that an interaction between mineral-nutrient and rought stress may be important in the survival of E. obliqua on the calcareous soils. Foliar analysis of seedlings from the acidic populations grown on calcareous soil in the field showed that chlorosis was closely correlated with high levels of phosphorus, low levels of iron and increased phosphorus/ iron ratios. In contrast, seedlings from the calcareous population showed only a mild chlorosis when grown on alkaline calcareous soils, with seedlings maintaining low levels of phosphorus, higher levels of iron and correspondingly low phosphorus/iron ratios. It is suggested that lime-chlorosis exhibited by the acidic population may be the result of either an internal inactivation or reduced uptake of iron. A glasshouse experiment showed that the effects of the calcareous soil could be ameliorated by burning. Seedlings from both the acididc and calcareous populations showed increased growth, alleviation of chlorosis and reduced mycorrhizal infection when grown on burnt calcareous soil. Furthermore, the alleviation of chlorosis in seedlings from the acididc population was concomitat with a reduction in phosphorus content and phosphorus/iron ratios. However, in this experiment trends indicated higher levels of iron in chlorotic tissue compared with green tissue. Seedling establishement and survival on calcareous soils are likely to depend on both the seedling genotype and direct environmental factors, e.g. fire, operating at the time of regeneration. MenosA field experiment confirmed the existence of intraspecific variation in E. obliqua in relation to edaphic factors. A population from an acids soil showed severe chlorosis, slow growth and low survival when grown on more alkaline calcareous soils, but was the fastet-growing population on fertile acidic soils. Seedling deaths in the field suggested that an interaction between mineral-nutrient and rought stress may be important in the survival of E. obliqua on the calcareous soils. Foliar analysis of seedlings from the acidic populations grown on calcareous soil in the field showed that chlorosis was closely correlated with high levels of phosphorus, low levels of iron and increased phosphorus/ iron ratios. In contrast, seedlings from the calcareous population showed only a mild chlorosis when grown on alkaline calcareous soils, with seedlings maintaining low levels of phosphorus, higher levels of iron and correspondingly low phosphorus/iron ratios. It is suggested that lime-chlorosis exhibited by the acidic population may be the result of either an internal inactivation or reduced uptake of iron. A glasshouse experiment showed that the effects of the calcareous soil could be ameliorated by burning. Seedlings from both the acididc and calcareous populations showed increased growth, alleviation of chlorosis and reduced mycorrhizal infection when grown on burnt calcareous soil. Furthermore, the alleviation of chlorosis in seedlings from the acididc population was concomitat with... Mostrar Tudo |
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Palavras-Chave: |
Efeito do fogo; Effect of fire; Growth; Plant. |
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Thesagro: |
Crescimento; Planta; População. |
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Thesaurus Nal: |
Eucalyptus obliqua; population. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02535naa a2200241 a 4500
001 1789263
005 1996-07-04
008 1982 bl --- 0-- u #d
100 1 $aANDERSON, C. A.
245 $aLime-chlorosis and the effect of fire on the growth of three seedling populations of Eucalyptus obliqua L'Herit.
260 $c1982
520 $aA field experiment confirmed the existence of intraspecific variation in E. obliqua in relation to edaphic factors. A population from an acids soil showed severe chlorosis, slow growth and low survival when grown on more alkaline calcareous soils, but was the fastet-growing population on fertile acidic soils. Seedling deaths in the field suggested that an interaction between mineral-nutrient and rought stress may be important in the survival of E. obliqua on the calcareous soils. Foliar analysis of seedlings from the acidic populations grown on calcareous soil in the field showed that chlorosis was closely correlated with high levels of phosphorus, low levels of iron and increased phosphorus/ iron ratios. In contrast, seedlings from the calcareous population showed only a mild chlorosis when grown on alkaline calcareous soils, with seedlings maintaining low levels of phosphorus, higher levels of iron and correspondingly low phosphorus/iron ratios. It is suggested that lime-chlorosis exhibited by the acidic population may be the result of either an internal inactivation or reduced uptake of iron. A glasshouse experiment showed that the effects of the calcareous soil could be ameliorated by burning. Seedlings from both the acididc and calcareous populations showed increased growth, alleviation of chlorosis and reduced mycorrhizal infection when grown on burnt calcareous soil. Furthermore, the alleviation of chlorosis in seedlings from the acididc population was concomitat with a reduction in phosphorus content and phosphorus/iron ratios. However, in this experiment trends indicated higher levels of iron in chlorotic tissue compared with green tissue. Seedling establishement and survival on calcareous soils are likely to depend on both the seedling genotype and direct environmental factors, e.g. fire, operating at the time of regeneration.
650 $aEucalyptus obliqua
650 $apopulation
650 $aCrescimento
650 $aPlanta
650 $aPopulação
653 $aEfeito do fogo
653 $aEffect of fire
653 $aGrowth
653 $aPlant
700 1 $aLADIGES, P. Y.
773 $tAustralian Journal of Botany$gv.30, p.47-66, 1982.
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Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
20/12/2016 |
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Data da última atualização: |
20/12/2016 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ROCHA, D. A.; SANTOS, S. da S.; GOULART, J. M.; ESPINDOLA, J. A. A.; GUERRA, J. G. M.; ARAUJO, E. da S. |
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Afiliação: |
ADRIANO ALVIM ROCHA; SILVIO DA SILVA SANTOS, UFRRJ; JHONATAN MARINS GOULART, UFRRJ; JOSE ANTONIO AZEVEDO ESPINDOLA, CNPAB; JOSE GUILHERME MARINHO GUERRA, CNPAB; EDNALDO DA SILVA ARAUJO, CNPAB. |
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Título: |
Avaliação de diferentes fontes de adubação orgânica nitrogenada sobre o desempenho agronômico do milho verde. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., FERTBIO 2016. Goiânia. Rumo aos novos desafios: anais. Goiânia: UFG, 2016. |
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Idioma: |
Português |
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Palavras-Chave: |
Adubo nitrogenado; Catingueiro; Fazendinha Agroecológica KM 47. |
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Thesagro: |
Agricultura Orgânica. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 00929naa a2200217 a 4500
001 2058991
005 2016-12-20
008 2016 bl --- 0-- u #d
100 1 $aROCHA, D. A.
245 $aAvaliação de diferentes fontes de adubação orgânica nitrogenada sobre o desempenho agronômico do milho verde.
260 $c2016
650 $aAgricultura Orgânica
653 $aAdubo nitrogenado
653 $aCatingueiro
653 $aFazendinha Agroecológica KM 47
700 1 $aSANTOS, S. da S.
700 1 $aGOULART, J. M.
700 1 $aESPINDOLA, J. A. A.
700 1 $aGUERRA, J. G. M.
700 1 $aARAUJO, E. da S.
773 $tIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 32.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 16.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 14.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 11., FERTBIO 2016. Goiânia. Rumo aos novos desafios: anais. Goiânia: UFG, 2016.
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