Effect of CO~(2+) and Ni~(2+) on Seed Germination and Seedling Growth of Oilseed Rape

摘要

Metal toxicity is an important factor governing germination and growth of plants. We have investigated how CO~(2+) and Ni~(2+) treatment affected germination and early growth stage of oilseed rape (Brassica napus L.). The results showed that the single pollution of CO~(2+)was capable to stimulate the seed germination and seedling growth of oilseed rape at lower concentration, but the phenomena did not exist by the single pollution of Ni~(2+). Not only polluted by CO~(2+)but also by Ni~(2+), all indexes of germination and growth reduced gradually at higher concentration among examined concentration of heavy metals. Meanwhile, effects of Ni~(2+)single pollution were stronger than that of CO~(2+)single pollution.