Quality of cotton seeds submitted to encapsulation process with and without dye.

This study evaluated the physiological quality of cotton seeds when subjected to encapsulation with and without dye compared with seeds treated only with fungicides (carboxin and thiran 200 Sc) and insecticide (pirimiphos methyl) control. The larger mixer (capacity 40 L) received delinted seeds + treated to undergo the process of encapsulation (coating and finishing) with and without dye, and non-encapsulated served as control. The following treatments were established: 1 delinted seeds and treated with fungicides (carboxin and 200 thiran Sc) and insecticides (pirimiphos methyl) (control), 2 delinted seeds, processed and encapsulated (coating and finishing) without dye, and 3 delinted seeds, processed and encapsulated with dye. It was adopted a randomized delineation with three replications. The variables were germination percentage, seedling length and mass of 100 seeds. It was observed that the coating process of cotton delinted seeds, treated with fungicides and insecticides and encapsulated does not cause reduction in seed physiological quality, and the use of dye on encapsulated in seeds does not change its quality.