Produção e qualidade da uva Niágara Rosada fertirrigada com diferentes doses de nitrogênio em Colatina, ES

• Ano de defesa: 2010
• Autor(a) principal: Busato, Cristiani Campos Martins
• Orientador(a): Soares, Antonio Alves
• Banca de defesa: Alencar, Carlos Augusto Brasileiro de , Soares, Adilson Rodrigues , Reis, Edvaldo Fialho dos
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Doutorado em Engenharia Agrícola
• Departamento: Construções rurais e ambiência; Energia na agricultura; Mecanização agrícola; Processamento de produ
• País: BR
• Palavras-chave em Português: Manejo da irrigação; Uva; Nitrogênio
• Palavras-chave em Inglês: Irrigation management; Grape; Nitrogen
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA::ENGENHARIA DE AGUA E SOLO
• Link de acesso: http://locus.ufv.br/handle/123456789/682

The Niagara Rosada is the most widely grown table grapes in the state of Espirito Santo, but the criteria used for irrigation and fertilization are based on practical experiences and information generated by producers in other regions. As the research in this field are incipient in the region, a study was conducted in an experimental area of IFES Campus Itapina to evaluate the effect of four irrigation management strategies and three levels of nitrogen applied by fertigation on the quality of the grape Niagara Rosada and characterize the duration of phenological stages in the 2009 crop in Colatina (ES) county. We evaluated three doses of nitrogen applied by fertigation: 35, 70 and 140 g plant-1. From the beginning of the experiment until the stage of maturation, all treatments received the same water depth, increasing soil moisture at field capacity (M1 = 100%). After this period, we evaluated three strategies for irrigation management: 67% = M2, M3 = 33%, and M4 = 0% of the depth corresponding to the M1 treatment, in other words, the crop was subjected to water deficit according to the treatment M2, M3, and M4, which lasted until the harvest. Phenology of grapevine was assessed by viewing the appearance of periods, defined in terms of days after pruning. The length, diameter and distance between the nodes of the branches were measured every 4 days. The content of soluble solids (° Brix), and longitudinal and transverse diameter of the berries was evaluated during the period of maturation. After harvest were determined mass of bunch, length and width of the bunch, number of berries per bunch, berry weight and berry weight of 10 berries, longitudinal and transversal diameter of the berry, total soluble solids (°Brix), pH, total titrable acidity and dry mass of berries. The production cycle of Niagara Rosada grape lasted for 124 days from pruning to harvest. The levels of nitrogen fertilization and irrigation management strategies influenced the evaluated features, which also produced the best results in plants grown under water stress after veraison phase coupled with the N rate of 70 g.plant-1.