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| 5. |  | SPARLING, G. P.; HART, P. B. S.; AUGUST, J. A.; LESLIE, D. M. A comparison of soil and microbial carbon, nitrogen, and phosphorus contents, and macro-aggregate stability of a soil under native forest and after clearance for pastures and plantation forest. Biol. Fertil. Soils, v. 17, n. 2, p. 91-100, 1994.| Biblioteca(s): Embrapa Agrobiologia. |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
21/08/2009 |
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Data da última atualização: |
30/11/2022 |
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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: |
SOUZA, C. R. de; BASSOI, L. H.; LIMA FILHO, J. M. P.; SILVA, F. F. S. da; VIANA, L. H.; DANTAS, B. F.; PEREIRA, M. S.; RIBEIRO, P. R. de A. |
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Afiliação: |
CLAUDIA RITA DE SOUZA; LUIS HENRIQUE BASSOI, CPATSA; JOSÉ MOACIR PINHEIRO LIMA FILHO; FABRÍCIO FRANCISCO SANTOS DA SILVA; LEANDRO HESPANHOL VIANA, UENF/CCTA; BARBARA FRANCA DANTAS, CPATSA; MAIANE SANTOS PEREIRA; PAULA ROSE DE ALMEIDA RIBEIRO. |
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Título: |
Water relations of field-grown grapevines in the São Francisco Valley, Brazil, under different rootstocks and irrigation strategies. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Scientia Agrícola, v. 66, n. 4, p. 436-446, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
There is an increased demand for high quality winegrapes in the São Francisco Valley, a new wine producing area in Brazil. As the grape quality is closely linked to the soil water status, understanding the effects of rootstock and irrigation management on grapevine water relations is essential to optimize yield and quality. This study was carried out to investigate the effects of irrigation strategies and rootstocks on water relations and scion vigour of field-grown grapevines in Petrolina, Pernambuco state, Brazil. The cultivars used as scions are Moscato Canelli and Syrah, both grafted onto IAC 572 and 1103 Paulsen rootstocks. The following water treatments were used: deficit irrigation, with holding water after veraison; and partial root-zone drying, supplying (100% of crop evapotranspiration) of the water loss to only one side of the root system after fruit set, alternating the sides periodically (about 24 days). In general, all treatments had values of pre-dawn leaf water potential higher than –0.2 MPa, suggesting absence of water stress. The vine water status was more affected by rootstock type than irrigation strategies. Both cultivars grafted on IAC 572 had the highest values of midday leaf water potential and stem water potential, measured on non-transpiring leaves, which were bagged with both plastic sheet and aluminum foil at least 1h before measurements. For both cultivars, the stomatal conductance (gs), transpiration (E) and leaf area index (LAI) were also more affected by roostsotck type than by irrigation strategies. The IAC 572 rootstock presented higher gs, E and LAI than the 1103 Paulsen. Differences in vegetative vigor of the scion grafted onto IAC 572 rootstocks were related to its higher leaf specific hydraulic conductance and deeper root system as compared to the 1103 Paulsen, which increased the water-extraction capability, resulting in a better vine water status. MenosThere is an increased demand for high quality winegrapes in the São Francisco Valley, a new wine producing area in Brazil. As the grape quality is closely linked to the soil water status, understanding the effects of rootstock and irrigation management on grapevine water relations is essential to optimize yield and quality. This study was carried out to investigate the effects of irrigation strategies and rootstocks on water relations and scion vigour of field-grown grapevines in Petrolina, Pernambuco state, Brazil. The cultivars used as scions are Moscato Canelli and Syrah, both grafted onto IAC 572 and 1103 Paulsen rootstocks. The following water treatments were used: deficit irrigation, with holding water after veraison; and partial root-zone drying, supplying (100% of crop evapotranspiration) of the water loss to only one side of the root system after fruit set, alternating the sides periodically (about 24 days). In general, all treatments had values of pre-dawn leaf water potential higher than –0.2 MPa, suggesting absence of water stress. The vine water status was more affected by rootstock type than irrigation strategies. Both cultivars grafted on IAC 572 had the highest values of midday leaf water potential and stem water potential, measured on non-transpiring leaves, which were bagged with both plastic sheet and aluminum foil at least 1h before measurements. For both cultivars, the stomatal conductance (gs), transpiration (E) and leaf area index (LAI) were also more ... Mostrar Tudo |
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Palavras-Chave: |
Estresse hídrico; Porta-enxerto; Vale do São Francisco; Videira. |
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Thesagro: |
Irrigação; Manejo; Produção; Uva; Viticultura; Vitis Vinifera. |
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Thesaurus NAL: |
Grapes. |
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Categoria do assunto: |
--
A Sistemas de Cultivo |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/31975/1/Bassoi.pdf
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Marc: |
LEADER 02867naa a2200337 a 4500
001 1257067
005 2022-11-30
008 2009 bl uuuu u00u1 u #d
100 1 $aSOUZA, C. R. de
245 $aWater relations of field-grown grapevines in the São Francisco Valley, Brazil, under different rootstocks and irrigation strategies.
260 $c2009
520 $aThere is an increased demand for high quality winegrapes in the São Francisco Valley, a new wine producing area in Brazil. As the grape quality is closely linked to the soil water status, understanding the effects of rootstock and irrigation management on grapevine water relations is essential to optimize yield and quality. This study was carried out to investigate the effects of irrigation strategies and rootstocks on water relations and scion vigour of field-grown grapevines in Petrolina, Pernambuco state, Brazil. The cultivars used as scions are Moscato Canelli and Syrah, both grafted onto IAC 572 and 1103 Paulsen rootstocks. The following water treatments were used: deficit irrigation, with holding water after veraison; and partial root-zone drying, supplying (100% of crop evapotranspiration) of the water loss to only one side of the root system after fruit set, alternating the sides periodically (about 24 days). In general, all treatments had values of pre-dawn leaf water potential higher than –0.2 MPa, suggesting absence of water stress. The vine water status was more affected by rootstock type than irrigation strategies. Both cultivars grafted on IAC 572 had the highest values of midday leaf water potential and stem water potential, measured on non-transpiring leaves, which were bagged with both plastic sheet and aluminum foil at least 1h before measurements. For both cultivars, the stomatal conductance (gs), transpiration (E) and leaf area index (LAI) were also more affected by roostsotck type than by irrigation strategies. The IAC 572 rootstock presented higher gs, E and LAI than the 1103 Paulsen. Differences in vegetative vigor of the scion grafted onto IAC 572 rootstocks were related to its higher leaf specific hydraulic conductance and deeper root system as compared to the 1103 Paulsen, which increased the water-extraction capability, resulting in a better vine water status.
650 $aGrapes
650 $aIrrigação
650 $aManejo
650 $aProdução
650 $aUva
650 $aViticultura
650 $aVitis Vinifera
653 $aEstresse hídrico
653 $aPorta-enxerto
653 $aVale do São Francisco
653 $aVideira
700 1 $aBASSOI, L. H.
700 1 $aLIMA FILHO, J. M. P.
700 1 $aSILVA, F. F. S. da
700 1 $aVIANA, L. H.
700 1 $aDANTAS, B. F.
700 1 $aPEREIRA, M. S.
700 1 $aRIBEIRO, P. R. de A.
773 $tScientia Agrícola$gv. 66, n. 4, p. 436-446, 2009.
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