QUALIDADE DE SEMENTES DE ABÓBORA SOB PERÍODOS DE ARMAZENAMENTO E TRATAMENTO QUÍMICO

Abstract

The informations on methodologies for evaluating the vigor of vegetable seeds is less studied, including species of lesser commercial interest such as the most diverse species of pumpkins. Thus, studies involving the storage of these seeds and the effects of chemical treatment under their vigor are necessary for greater knowledge of the maintenance of pumpkin seeds quality. The objective of this work was to evaluate the physiological quality of “Pumpkin of pig” seeds under different periods of storage and chemical treatment. The experiment was carried out in the seed analysis laboratory of Instituto Federal Goiano - Campus Ceres. The treatments were: with and without chemical treatment and five storage periods (0, 30, 60, 90 and 120 days). The following analyzes were performed: physical purity, mass of a thousand seeds, moisture content, electrical conductivity, germination, dry mass of germinated seedlings, field emergence, dry mass of emerged seedlings, seedling height, number of leaves and speed index of emergency. The data obtained were submitted to Tukey's test (5%) by Sisvar and regression analysis. It was observed that the stored seeds lost moisture and had an increase in electrical conductivity as a function of storage. There were no significant differences in seed germination with or without fungicide treatment in the studied periods. The emergence of seedlings with treated seeds was higher up to 90 days. The application of chemical treatment can provide a good vigor of pork pumpkin seeds for a storage of up to 90 days.