Influence of harvest date and rootstock on physico-chemical characteristics of grape juices elaborated in tropical semi-arid region of Brazil.
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Fruit juices are products defined as liquids obtained by extraction of ripe fruit, by means of adequate technological processes. The climate, through elements of air temperature, rainfalI, solar radiation and relative humidity, can influence strongly the phenological phases of the vines, consequent1y the development and growth ofthe plants. In the tropical semi-arid region ofNortheast Brazil, vines can develop alI the time, because the c1imate provides a high mean temperature, solar radiation and water availability for irrigation and grapes present different chemical characteristics according to the harvest date. The vigor of the rootstock can strongly influence the vine growth and grape quality.
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Vale do São Francisco, Composição fenólica, Região Semiarida, Vinho tropical, Análise química, Porta enxerto, Suco, Uva, Grapes, Viticulture, Phenolic compounds, Wines, Chemical analysis