Qualidade fisiológica de sementes de soja submetidas ao hidrocondicionamento

Abstract

The technique of controlled hydration of the seeds has been used as method of physiologic conditioning, so much for seeds deteriorated as for seeds highly sensitive the fast soak, or the interaction among both, aiming at to improve the acting of these in the field. The hydration can be following by drying, if the seeds have not reached the phase III of the germination, facilitating the subsequent handling, storage and sowing with conventional equipments. The objective of the present work was to evaluate the effects of periods of hidrocondicionamento of seeds of soybean of 20 and 24 hours, following by drying, about the physiologic quality of these seeds stored by 0, 90, 180 and 270 days in humidity conditions and controlled temperature. The technique of hydro conditioning of the soybean seeds adopted in this work, had beneficial effect on the physiologic quality of these seeds, and the advantages of the hydro conditioning became more evident with the natural aging of the seeds during the storage.