Perfil vitivinícola, fenologia, qualidade e produção de uvas americanas e híbrida em Pelotas-RS

• Autor(a) principal: Azevedo, Fernanda Quintanilha
• Data de Publicação: 2010
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFPel - Guaiaca
• Texto Completo: http://guaiaca.ufpel.edu.br/handle/123456789/1181
• topic: Viticultura; Vitis labrusca; Caracterização; Estádio fenológico; Videira; Viticulture; Vitis labrusca; Characterization; Phonological stage; Vine; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA

The vitiviniculture is an antique activity in the region of Pelotas-RS. The viability of the grape cultivation is facilitated by its tradition in the horticulture; however there are little technical and scientific data of growing in the particular region. Therefore, the objective of this work was to describe the wine-producing profile, to determine the phenology and to characterize the quality and production of common grapevines grown in the region of Pelotas-RS. The description of the current profile of the vitiviniculture of Pelotas was carried by an application of a questionnaire done to the grape growers. The evaluations of phenology and the determination of quality and production were carried on cultivars of common grapes: Bordô , Isabel , Niágara Rosada and BRS Violeta from a private vineyard sited in the countryside of Pelotas- RS in the 2008/2009 and 2009/2010 crops. Trees were trained under trellis system with spacing of 2,0 x 3,0 (treexline), totaling an area average of 0,5 ha. The observation and registration of the phenological stages (shoot burst, full bloom, beginning of ripening to harvest time) of the cultivars assessed were done by phenological scale according Eichhorn e Lorenz (1977). Thermal requirements of the cultivars were determined by degree-day calculation according equations proposed by Villa Nova et al. (1972). Fruit quality was assessed regarding soluble solids, titratable, SS/TA and pH. For yield characterization it was analyzed number of bunch per tree, bunch mass, bunch mass per tree and yield. Among the cultivars assessed Bordô and Isabel reach the largest areas and longer are already inserted in this context; It comprises a traditional context and is implanted aiming to produce wines and juices and grapes to the in natura market.Together Niágara Rosada they represent alternatives of market. The others, such as the cultivar BRS Violeta, are added to the group of grape cultivars that aggregate value to elaborated products and, consequently, contribute to increase yield production. Isabel was the later cultivar and showed the highest day intervals and thermal accumulation occurred from pruning to harvest; followed by cultivars Bordô, BRS Violeta and Niágara Rosada. In the respective crops BRS Violeta showed higher contents of SS, pH and SS/TA; the cultivar Bordô showed higher TA. In the all cultivars and crops assessed SS/TA is in the limit established in the Brazilian legislation. The more productive cultivars were Isabel in 2008/2009 and BRS Violeta in 2009/2010 crop.