946 resultados para Water Supply System


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The aim of this study was to evaluate the total number of clusters per plant and the sugar concentration of Superior Seedless grapevine branches under different soil water tensions conditions. The statistical design was a randomized block with 4 treatments (a) control, b) 70 kPa tension, c) 50 kPa tension, d) 30 kPa tension, and 6 replications, each plot consisting of two plants. Soil moisture curves were plotted in laboratory and field conditions, potential bud fertility (carried out with the help of a 30x magnifier glass and collecting 17 branches in the primary arm of the plant with 15 buds each), actual fertility (given by the fertile buds to sprouted buds per plant ratio) and total sugars. Laboratory conditions helped stress to reach a -70 kPa level in just 21 days during the procedure to determine the retention curve in the laboratory. The different stress levels applied to the soil did not cause significant differences in the total number of clusters per plant. However, a -30 kPa stress showed a 68% reduction in water depth when compared to control and different soil water stress affected the carbohydrate percentage in branches of the Superior Seedless vine.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Includes bibliography

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Includes bibliography

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Includes bibliography

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Agronomia (Energia na Agricultura) - FCA

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Pós-graduação em Geociências e Meio Ambiente - IGCE

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)