Tratamento de sementes e tipos de substrato na produção de mudas de Acacia mearnsii

Abstract

This paper evaluated the quality of Acacia mearnsii De Wild seedlings, produced from treated seeds with Vitavax + Thiran and with not-treated seeds. The seeds were sowed in four different substrates (commercial, soil from forests and sand) in different compositions. Laboratory sanity and germination evaluations in the seeds were made, and the seedlings evaluation was made at greenhouse. In sanity evaluation it was verified the seeds treatment efficiency only for Aspergillus flavus. In the germination test, the treated seeds showed better performance. The greenhouse germination was positively affected by chemical treatment and by commercial substrate type. Therefore, this is the recommended treatment.