Desempenho das sementes de milho hibrido tratadas com Avicta Completo® durante o armazenamento

• Autor(a) principal: Oliveira Junior, Adhemar Antonio de
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UFPel - Guaiaca
• Texto Completo: http://repositorio.ufpel.edu.br/handle/ri/1411
• topic: Zea mays; Tratamento de sementes; Armazenamento de sementes; Nematicida; Abamectina; Qualidade fisiológica; Zea mays; Seed treatment; Seed storage; Nematicide abamectin; Physiological quality; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA::PRODUCAO E BENEFICIAMENTO DE SEMENTES

The products to be applied in the disinfestation of seed shall provide sufficient protection to seed as much as the seedlings in the field, keeping the fungi, insects and nematodes properly controlled. The objective of this study was to investigate the possible effect immediate and latent product Avicta Complete® Pack (with fungicide, insecticide and nematicide action) on the physiological quality of hybrid maize seed. Was used six hybrids from Pioneer Company: 30K73, 30F35, 30F80, 30K75, 30R50 and 32R22. The seeds were submitted to the following health treatments: 1) control, 2) Avicta Complete®, 3) overdose Avicta Complete® 100%, and then stored at room temperature and cold chamber (100 C and 60% RH) for 350 days. The evaluations were performed at 50, 150, 250 and 350 days, and the characteristics evaluated: germination, cold test and accelerated aging. Assays were performed at the Laboratory of Seeds of Tropical Breeding and Genetics Company and the data were subjected to statistical analysis using the statistical program Sisvar® (FERREIRA, 2000). Data were analyzed according to statistical analysis on the isolated effect of the products and environment interaction / storage in which we obtained the following conclusions: the reduction of the physiological quality of corn seeds varied depending on the treatment of the hybrid and the time that seeds remain stored after treatment and the reduction of physiological seed quality intensified with prolonged storage of the treated seed, it is validating therefore the secure processing and storage Avicta Complete® Pack with up to 250 days, which helps the management of treatment on seed processing units in Seed Corn Companies.