Tecnologia e sanidade de sementes de feijão crioulo submetidas a tratamento químico e biológico

Abstract

The objective of this study was to evaluate the microbiolization with Trichoderma harzianum compared to chemical treatment on the physiological and sanitary seed quality of creole bean varieties. The treatments were arranged in a factorial design - 3 x 2 (seed treatments x varieties), and the varieties "Cavalo" and "Chumbinho" were acquired from a familiar property located in Severiano de Almeida / RS. The seed treatments evaluated were: T1) Chemical Treatment (Standak ® Top); T2) Biological Treatment (Trichodermil 1306 SC ® ); T3) control (without covering). Were performed tests such as seed health, germination, seedling length and seedling emergence in laboratory and in the field. The experimental design was completely randomized with four replications. The biological treatment was effective in controlling fungus associated with seeds for both varieties evaluated, even though the dosage used has affected the germination and seedling development. Chemical treatment effectively controlled the associated fungus, and provided more vigorous seedlings in both varieties.