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The limitation of water during germination can decrease the speed of germination or even stop it, since water is fundamental in the process of metabolic activation in the resumption of embryo growth. The objective of this study was to evaluate the influence of agents and osmotic potential and germination of soybean seeds. The experimental design was completely randomized in a factorial AxB, factor A: inducing agents: PEG 6000, mannitol, sodium chloride, calcium chloride, and magnesium chloride, and factor B: osmotic potential 0; -0.3; -0.6 and -0.9 MPa, with four replications. The first count of germination, germination, abnormal seedlings and dead seeds. We conclude that the germination of soybean seeds reduces with increasing water restriction and all solutes studied affect seed vigor. The mannitol solution is less drastic in germination and the number of abnormal seedling in potential up to -0.9 MPa, since the solution of PEG 6000 is more harmful on the viability of soybean seeds.

RESTRIÇÃO HÍDRICA ATRAVÉS DE DIFERENTES AGENTES OSMÓTICOS: EFEITO NA QUALIDADE DE SEMENTES DE SOJA