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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
12/07/2002 |
Data da última atualização: |
12/07/2002 |
Autoria: |
ANDRADE, L. R. M. de; IKEDA, M.; ISHIZUKA, J. |
Título: |
Effect of nitrogen sources on aluminium toxicity in wheat varieties differing in tolerance to aluminum. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Soil Sci Plant Nutr., v. 42, n. 3, p. 651-657, 1996. |
Idioma: |
Inglês |
Conteúdo: |
As previously reported (Taylor and Foy 1985; Keltjens and Ulden 1987; Grauer and Horst 1990; Galvez and Clark 1991), plant species and varietes widely differ in Al tolerance. Although many hyphotyeses about the physiological mechanism (s) has not been elucidated. However, it is obvious that when exposed to Al at high concentrations. Al- Tolerant plants seem to be able to avoid the toxicity by refraining from excess uptake of Al or by chelating of Al in the rhizosphere or in the roots. In such ways, Al can not affect the growth of tolerant plants (Foy et al. 1978).
Differences in anion and cation uptake of nitrogen, NO3 - and NH4+ on the Al tolerance among varieties of some plant species has been investigated (taylor and Foy 1985; Keltjes and Ulden 1987; Grauer and Horst 1990; Galvez and Clark 1991). However, it was suggested that further studies on the complex relattion among N source, Rhizosphere pH-changes, and differential Al tolerance would be necessary.
In the investigation of differential Al tolerance in wheat, the hematoxylin staining method (Polle et al. 1978) has been frequenty used for the visualization of Al in root on the surface of plant roots and for the histochemical localization of Al on root tissues( Rincon and Gonzales 1992; Ownby 1993). In short-term experiments, the method was useful to evolutade the difference in Al tolerance among wheat varietes based on the pattern of root tip staining by hematoxylin after exposure to Al (Takagi el al. 1983; Wheeler et al. 1992)
This study was carried out to anlyze the relations among Al damge preferential uptake of nitrogen, solution pH changes, and the ability of the hematoxylin method to identify differential Al tolerance of wheat plants. MenosAs previously reported (Taylor and Foy 1985; Keltjens and Ulden 1987; Grauer and Horst 1990; Galvez and Clark 1991), plant species and varietes widely differ in Al tolerance. Although many hyphotyeses about the physiological mechanism (s) has not been elucidated. However, it is obvious that when exposed to Al at high concentrations. Al- Tolerant plants seem to be able to avoid the toxicity by refraining from excess uptake of Al or by chelating of Al in the rhizosphere or in the roots. In such ways, Al can not affect the growth of tolerant plants (Foy et al. 1978).
Differences in anion and cation uptake of nitrogen, NO3 - and NH4+ on the Al tolerance among varieties of some plant species has been investigated (taylor and Foy 1985; Keltjes and Ulden 1987; Grauer and Horst 1990; Galvez and Clark 1991). However, it was suggested that further studies on the complex relattion among N source, Rhizosphere pH-changes, and differential Al tolerance would be necessary.
In the investigation of differential Al tolerance in wheat, the hematoxylin staining method (Polle et al. 1978) has been frequenty used for the visualization of Al in root on the surface of plant roots and for the histochemical localization of Al on root tissues( Rincon and Gonzales 1992; Ownby 1993). In short-term experiments, the method was useful to evolutade the difference in Al tolerance among wheat varietes based on the pattern of root tip staining by hematoxylin after exposure to Al (Takagi el al. 1983; Wheele... Mostrar Tudo |
Thesagro: |
Alumínio; Cerrado; Nitrogênio. |
Thesaurus Nal: |
nitrogen. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02274naa a2200193 a 4500 001 1565052 005 2002-07-12 008 1996 bl --- 0-- u #d 100 1 $aANDRADE, L. R. M. de 245 $aEffect of nitrogen sources on aluminium toxicity in wheat varieties differing in tolerance to aluminum. 260 $c1996 520 $aAs previously reported (Taylor and Foy 1985; Keltjens and Ulden 1987; Grauer and Horst 1990; Galvez and Clark 1991), plant species and varietes widely differ in Al tolerance. Although many hyphotyeses about the physiological mechanism (s) has not been elucidated. However, it is obvious that when exposed to Al at high concentrations. Al- Tolerant plants seem to be able to avoid the toxicity by refraining from excess uptake of Al or by chelating of Al in the rhizosphere or in the roots. In such ways, Al can not affect the growth of tolerant plants (Foy et al. 1978). Differences in anion and cation uptake of nitrogen, NO3 - and NH4+ on the Al tolerance among varieties of some plant species has been investigated (taylor and Foy 1985; Keltjes and Ulden 1987; Grauer and Horst 1990; Galvez and Clark 1991). However, it was suggested that further studies on the complex relattion among N source, Rhizosphere pH-changes, and differential Al tolerance would be necessary. In the investigation of differential Al tolerance in wheat, the hematoxylin staining method (Polle et al. 1978) has been frequenty used for the visualization of Al in root on the surface of plant roots and for the histochemical localization of Al on root tissues( Rincon and Gonzales 1992; Ownby 1993). In short-term experiments, the method was useful to evolutade the difference in Al tolerance among wheat varietes based on the pattern of root tip staining by hematoxylin after exposure to Al (Takagi el al. 1983; Wheeler et al. 1992) This study was carried out to anlyze the relations among Al damge preferential uptake of nitrogen, solution pH changes, and the ability of the hematoxylin method to identify differential Al tolerance of wheat plants. 650 $anitrogen 650 $aAlumínio 650 $aCerrado 650 $aNitrogênio 700 1 $aIKEDA, M. 700 1 $aISHIZUKA, J. 773 $tSoil Sci Plant Nutr.$gv. 42, n. 3, p. 651-657, 1996.
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Embrapa Cerrados (CPAC) |
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Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
15/01/2016 |
Data da última atualização: |
06/02/2023 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
GONCALVES, R. C.; MACEDO, P. E. F. de; VALLIM, J. H.; ARAÚJO, E. O. de; OLIVEIRA, R. D. de L. |
Afiliação: |
RIVADALVE COELHO GONCALVES, CPAF-AC; PAULO EDUARDO FRANCA DE MACEDO, CPAF-AC; JOSE HENRIQUE VALLIM, CNPMA; ELDER OLIVEIRA DE ARAÚJO, UNIVERSIDADE FEDERAL DE VIÇOSA; ROSÂNGELA D'ARC DE LIMA OLIVEIRA, UNIVERSIDADE FEDERAL DE VIÇOSA. |
Título: |
Nematoides do gênero Meloidogyne em Arachis spp. no Acre. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2015. |
Páginas: |
10 p. |
Série: |
(Embrapa Acre. Comunicado técnico, 189). |
ISSN: |
0100-8668 |
Idioma: |
Português |
Conteúdo: |
O objetivo deste trabalho é relatar as informações técnico-científicas obtidas até o momento sobre o patossistema Meloydogyne javanica Chitwood x Arachis spp. para contribuir com as análises de estratégias a serem adotadas no melhoramento genético e outras ações e projetos decorrentes das descobertas realizadas. |
Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Leguminosas forrajeras; Nemátodo parasitario de las plantas; Pastizales; Western Amazon. |
Thesagro: |
Leguminosa forrageira; Meloidoginose; Meloidogyne javanica; Nematóide; Parasito de planta; Pastagem. |
Thesaurus NAL: |
Forage legumes; Pastures; Plant parasitic nematodes. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137063/1/25854.pdf
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Marc: |
LEADER 01422nam a2200385 a 4500 001 2034028 005 2023-02-06 008 2015 bl uuuu u0uu1 u #d 022 $a0100-8668 100 1 $aGONCALVES, R. C. 245 $aNematoides do gênero Meloidogyne em Arachis spp. no Acre.$h[electronic resource] 260 $aRio Branco, AC: Embrapa Acre$c2015 300 $a10 p. 490 $a(Embrapa Acre. Comunicado técnico, 189). 520 $aO objetivo deste trabalho é relatar as informações técnico-científicas obtidas até o momento sobre o patossistema Meloydogyne javanica Chitwood x Arachis spp. para contribuir com as análises de estratégias a serem adotadas no melhoramento genético e outras ações e projetos decorrentes das descobertas realizadas. 650 $aForage legumes 650 $aPastures 650 $aPlant parasitic nematodes 650 $aLeguminosa forrageira 650 $aMeloidoginose 650 $aMeloidogyne javanica 650 $aNematóide 650 $aParasito de planta 650 $aPastagem 653 $aAcre 653 $aAmazonia Occidental 653 $aAmazônia Ocidental 653 $aLeguminosas forrajeras 653 $aNemátodo parasitario de las plantas 653 $aPastizales 653 $aWestern Amazon 700 1 $aMACEDO, P. E. F. de 700 1 $aVALLIM, J. H. 700 1 $aARAÚJO, E. O. de 700 1 $aOLIVEIRA, R. D. de L.
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