The contamination of areas with chemical polluters may cause stress on the majority of plants. In such case, the purpose of this research was to evaluate and to describe the effect of the polluters on germination and vigor of the rice seeds submitted to chemical polluters from human activity. Rice seeds of cultivar BR IRGA 410, crop year 2000/2001 were used. The seeds were soaked up by one hour in the following chemical polluters: phenol (C6H6O), boric acid (H3BO3), chlorate ammonium (NH4Cl) and potassium phosphate monobasic (KH2PO4), on zero (control), 5, 10 and 15mg l-1 quantities. Thereupon the soaking, the seeds were evaluated through the germination test, the first count in the germination test, the emergency rate index of the seedlings, the emergency of the seedlings in greenhouse conditions, the electric conductivity, the length of shoot and roots of the seedlings and the dry weight of the root and shoot of the seedlings. Among the chemical polluters the NH4Cl and KH2PO4, were those which affected most the physiological quality of rice seeds causing decrease on the vigor.
polluters; vigor; rice; seed
