Embebição e qualidade fisiológica de sementes de tremoço branco influenciadas pelo fornecimento de micronutrientes

Abstract

The objective of this study was to evaluate the imbibition and white lupine seeds physiological quality as affected by the pre-sowing treatments using immersion on the solutions with distinct micronutrients. The experimental design was conducted in a completely randomized in factorial (3 lots x 7 treatments) with four replications, by period of evaluation (start and after four months of storage). There were used three white lupine seed lots and seven distinct pre-sowing treatments (soaked or not soaked seeds on distilled water and in solution of boric acid (H3BO3), zinc sulphate (ZnSO4), manganese sulphate (MnSO4), copper sulphate (CuSO4), and molybdic acid (H2MoO4)). The seeds were evaluated to the imbibition and subsequently were submitted to the germination and vigor tests (first count of germination and electrical conductivity, dry weight and length of seedlings), as well the determinate of the seeds nutrients content. From the results it can be concluded that there was decreased speed of water absorption in the seed lot with lower physiological quality in the presence of manganese and molybdenum. Seed treatment by immersion in distilled water and in solutions of micronutrients favored physiological seed quality of three lots of white lupine.