Deficit Irrigation as a Strategy to Save Water: Physiology and Potential Application to Horticulture |
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引用本文: | J.Miguel Costa Maria F.Ortuno M.Manuela Chaves.Deficit Irrigation as a Strategy to Save Water: Physiology and Potential Application to Horticulture[J].Journal of Integrative Plant Biology,2007,49(10):1421-1434. |
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作者姓名: | J.Miguel Costa Maria F.Ortuno M.Manuela Chaves |
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作者单位: | [1]Instituto Superior de Agronomia Universidade Técnica de Lisboa Tapada da Ajuda,1349-017Lisboa Portugal [2]Laboratório de Ecofisiologia Molecular Instituto de Tecnologia Quimica e Biológica Apartado1272780-9010eiras,Portugal |
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基金项目: | MF Ortu(n)o was
granted a Postdoctoral research fellowship from the Spanish Ministry of Education and JM
Costa was supported by a postdoc fellowship granted by Fundac(a)o para a Ci(e)ncia e
Tecnologia (FCT)(ref. POCl2010/SFRH/BPD/14498/2003). The WATERWEB project provided funds
for research in grapevine. |
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摘 要: | Water is an increasingly scarce resource worldwide and irrigated agriculture remains one of the largest and most inefficient users of this resource. Low water use efficiency (WUE) together with an increased competition for water resources with other sectors (e.g. tourism or industry) are forcing growers to adopt new irrigation and cultivation practices that use water more judiciously. In areas with dry and hot climates, drip irrigation and protected cultivation have improved WUE mainly by reducing runoff and evapotranspiration losses. However, complementary approaches are still needed to increase WUE in irrigated agriculture. Deficit irrigation strategies like regulated deficit irrigation or partial root drying have emerged as potential ways to increase water savings in agriculture by allowing crops to withstand mild water stress with no or only marginal decreases of yield and quality. Grapevine and several fruit tree crops seem to be well adapted to deficit irrigation, but other crops like vegetables tend not to cope so well due to losses in yield and quality. This paper aims at providing an overview of the physiological basis of deficit irrigation strategies and their potential for horticulture by describing the major consequences of their use to vegetative growth, yield and quality of different crops (fruits, vegetables and ornamentals).
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关 键 词: | 园艺学 干燥 灌溉管理 植物生长 |
修稿时间: | 2006-11-02 |
Deficit Irrigation as a Strategy to Save Water: Physiology and Potential Application to Horticulture |
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Authors: | J Miguel Costa Maria F Ortuño M Manuela Chaves |
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Institution: | 1.Instituto Superior de Agronomia, Universidade Tecnica de Lisboa, Tapada da Ajuda, 1349-017 Lisboa, Portugal; 2 Laboratório de Ecofisiologia Molecular, Instituto de Tecnologia Quimica e Biológica, Apartado 127, 2780-901 Oeiras, Portugal |
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Abstract: | Water is an increasingly
scarce resource worldwide and irrigated agriculture remains one of the largest and most
inefficient users of this resource. Low water use efficiency (WUE) together with an
increased competition for water resources with other sectors (e.g. tourism or industry)
are forcing growers to adopt new irrigation and cultivation practices that use water more
judiciously. In areas with dry and hot climates, drip irrigation and protected cultivation
have improved WUE mainly by reducing runoff and evapotranspiration losses. However,
complementary approaches are still needed to increase WUE in irrigated agriculture.
Deficit irrigation strategies like regulated deficit irrigation or partial root drying
have emerged as potential ways to increase water savings in agriculture by allowing crops
to withstand mild water stress with no or only marginal decreases of yield and quality.
Grapevine and several fruit tree crops seem to be well adapted to deficit irrigation,but
other crops like vegetables tend not to cope so well due to losses in yield and quality.
This paper aims at providing an overview of the physiological basis of deficit irrigation
strategies and their potential for horticulture by describing the major consequences of
their use to vegetative growth, yield and quality of different crops (fruits, vegetables
and ornamentals). |
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Keywords: | deficit irrigation horticulture partial rootzone drying regulated deficit irrigation water saving |
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