Eficiência nos processos de produção, beneficiamento, controle de qualidade e comercialização de sementes de soja, um estudo de caso no estado do Paraná

• Ano de defesa: 2008
• Autor(a) principal: Bork, Carlos Rodolfo Schuch
• Orientador(a): Peske, Silmar Teichert
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Pelotas
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciência e Tecnologia de Sementes
• Departamento: Faculdade de Agronomia Eliseu Maciel
• País: BR
• Palavras-chave em Português: Manejo da cultura; Qualidade; Cultivar; Produtividade; Glycine max L.
• Palavras-chave em Inglês: Crop management; Quality; Cultivar; Productivity; Glicine max. L.
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::PRODUCAO E BENEFICIAMENTO DE SEMENTES
• Link de acesso: https://guaiaca.ufpel.edu.br/handle/123456789/1469

Soybean is by far the most important crop in Brazil, occupying the largest area and leading the exports from the agriculture sector. The use of high quality seeds is indispensable to achieve high yield potential, and this work aimed at establishing the efficiency of the different processes that drive seed production, post harvest technology and commerce of soybean seeds from a producer in the state of Paraná. The case study was undertaken at the Guerra seed company, located in the county of Pato Branco, state of Paraná. Besides growing its own seed produce, this grower manages also seed multiplication contracts for Syngenta Seeds, specifically for the cultivars NK412113 and NK8350. The data base for this study, which covers the period 2001 to 2006 was composed of: 1-Area grown to seed production; 2- Area not approved for seed production; 3- Gross seed produce; 4- Quantity of clean, graded seed; 5- Quantity of seed approved for market release, and 6- Quantity of traded seed. Regarding the area grown to the crop and its harvest as seed, the percentage area approved for seed production was calculated; likewise for the quantity of gross seed harvested in relation to that effectively processed and the quantity finally approved for market release and that effectively realized. The records were obtained directly from the seed company, considering from 2001 onward the data for all soybean cultivars marketed by the latter and as from 2003 those cultivars from Syngenta Seeds. The data were arranged into tables, according to production year for all fifteen cultivars from Guerra Seeds whereas in the case of Syngenta Seeds the grouping was undertaken exclusively on the basis of the cultivars, to best suit the objectives of this work. The different seed lots were considered the treatment replicates. Based on the results it can be stated that there is a large difference among cultivars in the efficiency with which soybean seeds are produced and processed. In general, it was observed that seed processing is responsible for discarding 25% of the produce, which emphasizes the need to improve the internal schemes of quality control.