稀土对水稻种子活力及抗重金属污染的影响

Effects of Rare Earths on Seed Vigor and Rice Anti-Heavy Metal Pollution

水稻种子经稀土元素La或Ce处理后,发芽势、发芽率、发芽指数、幼苗生长速度、活力指数都明显增加,田间的生长速度、产量甚至品质也显著提高,收获的籽粒中重金属Hg、Cd、Cr、Pb含量大幅降低,从而全面提高了种子活力。

Effects of rare earths on seed vigor of rice and the crop anti-heavy metal pollution were studied.The results showed that the germination emerge,germination rate,germination index ,growth rate and vigor index of the rice seed increase markedly with La or Ce treatment. Comparing with the control, the performance of the rice in field improved and the yield of the crop increased obviously in the soil polluted as well. Even the seed quality was also better than control.The level of Hg, Cd, Cr and Pb in the rice seeds reduced greatly. So the seed vigor of rice was enhanced with La or Ce treatment.