A solution culture experiment was carried out to investigate the effects of the combined contamination of vanadium (V) and cadmium (Cd) on Cd, V and phosphorus (P) uptake by rice. The results showed that the combined contaminations of V and Cd could affect the rice growth. When the Cd concentration in the solution was kept at the level of 1.0?mg·L~(-1), the root length and root/shoot biomass of rice plants decreased, as the V concentrations in the solution increased. The biomass of shoots and roots of rice showed significant decrease (p<0.05) at the V level of 1.6?mg·L~(-1)and 3.2?mg·L~(-1) respectively. Combined contamination of V and Cd could also affect P, V and Cd uptake by rice. When the concentration of Cd was 1.0?mg·L~(-1) in the solution, as the concentrations of V in the solution increased, the concentrations of P in the shoots and roots of rice decreased, concentrations of V in plant tissues increased with increasing V concentrations in the growth solution. V concentrations in roots were much higher than those in shoots of rice seedlings. Moreover, the addition of V could inhibit the Cd uptake by and accumulation in rice seedlings.
Acta Scientiae Circumstantiae