Produção de mudas enxertadas de pereira e pessegueiro em sistema hidropônico

• Ano de defesa: 2010
• Autor(a) principal: Souza, Aline das Graças de
• Orientador(a): Chalfun, Nilton Nagib Jorge
• Banca de defesa: Alvarenga, Ângelo Alberico, Pio, Rafael
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: UNIVERSIDADE FEDERAL DE LAVRAS
• Programa de Pós-Graduação: DAG - Programa de Pós-graduação
• País: BRASIL
• Palavras-chave em Português: Propagação; Cultivar; Enxertia; Hidroponia; Propagation; Grafting; Hydroponics
• Área do conhecimento CNPq: CNPQ_NÃO_INFORMADO
• Link de acesso: https://repositorio.ufla.br/handle/1/3943

In modern fruit production, technologies which enable the production of high quality fruits with less investment and high economic return are more and more sought. This is due to the growing levels of the market demands, more and more competitive. Few are the technological alternatives in the area of seedling production, mainly in temperate climate fruit trees such as pear and peach trees. The production of seedlings in hydroponics has been utilized in a pioneering manner due to its earliness of obtaining and the absence of pathogens, mainly of soil-borne ones. In the first part of this work, the purpose was to evaluate the growth of the rootstocks of pear tree "Taiwan Nashi-C" (Pyrus calleryana Decne) and the viability of production of grafted seedlings of three pear cultivars ("Trinfo, "Tenra" and Cascatense") in three grafting methods (budding, inverted-T budding and cleft grafting). The Cleft grafting was the most appropriate for pear seedling propagation, enabling that the same ones to be ready for commercialization at 35 days after grafting (DAG). Cultivar Triunfo presented the greatest growth at 42 DAG. The highest dry matter yield and accumulation of macro and micronutrients were obtained with cultivars "Tenra" and "Triunfo" grafted through the cleft grafting method. In the latter part of this work, the objective was making the production of rootstock of peach tree "Okinawa" and of seedlings grafted in hydroponic system. In the former step, time of germination and vegetative growth of the plants of the rootstock of peach tree "Okinawa" and in the latter step the viability of production of grafted peach seedlings of cultivars "Aurora" and "Diamante", associated with different types of cut on the rootstock after propagation of the peach seedlings, the same ones being ready for commercialization when they were 47.53 cm high at 116 DAT and both the cultivars presented the healing index of 100%, its being the case that cultivar Aurora presented greatest growth and greatest dry matter yield and accumulation of macro and micronutrients. The production of pear and peach seedling sin hydroponics is considered unprecedented, making a novel way of producing temperate climate fruit seedlings.