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      Desenvolvimento e exigência térmica da videira 'Niagara rosada', cultivada no Norte de Minas Gerais Translated title: Thermal requirements and development of 'Niagara rosada' grapes grown in the North of Minas Gerais

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          Abstract

          A videira 'Niagara Rosada' tem-se destacado como alternativa para a diversificação de espécies frutíferas cultivadas nos perímetros irrigados do semiárido brasileiro. O objetivo deste trabalho foi caracterizar e comparar a duração em dias e as exigências térmicas em graus-dia, considerando doze subperíodos do seu ciclo fenológico. O estudo foi conduzido no vinhedo Santa Catarina, município de Janaúba, região semiárida de Minas Gerais. As plantas, enxertadas sobre o porta-enxerto IAC 572 'Jales', foram conduzidas no sistema de irrigação por microaspersão. O acúmulo em dias e a exigência térmica (graus-dia) foram determinados em duas safras consecutivas da data da poda até a colheita, adotando-se a temperatura de 10°C como temperatura de base. O acúmulo em dias, da poda à colheita, foi de 116 para a poda realizada em janeiro e de 123 dias para a poda em julho. Na poda de janeiro, as plantas acumularam 1.838 graus-dia, enquanto na poda de julho o acúmulo foi de 1.766 graus- dia.

          Translated abstract

          The 'Niagara Rosada' grape has been highlighted as an alternative to the diversification of fruits growing in irrigated areas of the semi-arid Brazilian regions. The objective of this research was to characterize and compare the length of time in days and the thermal requirements in degree-days, taking in account twelve sub-periods of their phenological cycle, from pruning to harvesting. The study was carried out in the vineyard Santa Catarina, in the county of Janaúba, north of Minas Gerais - Brazil. Grapevines, grafted on the rootstock IAC 572 'Jales' were irrigated by microaspersion. The amount of days and the thermal requirement were determined in the same plants on two consecutive pruning dates. The total length of the cycle, varied from 116 days for the grape pruned in January, and 123 days for those pruned in July. The base temperature used for the study was 10° C. The total amount of degree days for the grape pruned in January was 1838; while for the ones pruned in July were 1766.

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          Aspectos climáticos para a viticultura tropical

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            Cultivares para a viticultura tropical no Brasil.

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              Viticultura

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbf
                Revista Brasileira de Fruticultura
                Rev. Bras. Frutic.
                Sociedade Brasileira de Fruticultura (Jaboticabal )
                1806-9967
                September 2009
                : 31
                : 3
                : 890-895
                Affiliations
                [1 ] Universidade Estadual de Montes Claros Brazil
                [2 ] Universidade Estadual de Montes Claros Brazil
                [3 ] USP
                Article
                S0100-29452009000300036
                10.1590/S0100-29452009000300036
                f3739579-d4a1-4386-94f8-b01474594bab

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-2945&lng=en
                Categories
                HORTICULTURE

                Horticulture
                vineyard,semi-arid,biometeorological index,vinhedo,semiárido,índice biometeorológico
                Horticulture
                vineyard, semi-arid, biometeorological index, vinhedo, semiárido, índice biometeorológico

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