Xiao YanHui;HE Jin-ming;Chengliang Pan;Zhong ZhaoQing;Gao ZhiQ

Huhhot Vegetable Science Institute,Huhhot,Inner Mongolia 010070,Chin;Huhhot Vegetable Science Institute,Huhhot,Inner Mongolia 010070,China

cadmium concentration;plant growth;basilicum;soluble sugar content;ck;cadmium accumulatio

[Objective] To discuss the effect of cadmium concentration on the plant growth and the cadmium absorption and accumulation of Ocimum basilicum.[Method] With O.basilicum as the plant materials,effects of cadmium concentration on the plant growth,cadmium accumulation,soluble sugar content,total N,P and K contents were studied on the basis of Hoagland nutrition.[Result] Low cadmium concentration(1 mg/L) promoted the plant growth,and the fresh weight and dry weight of aboveground part;but high cadmium concentration(5 and 10 mg/L) inhibited the plant growth,the fresh weight and dry weight of aboveground and underground parts.With the increase of cadmium concentration,chlorophyll content in O.basilicum leaves gradually reduced,and was lower than that in CK;but the soluble sugar content of aboveground part gradually enhanced and was higher than that in CK.Soluble sugar content of underground part in cadmium treatment was significantly lower than that in CK;the total N,P and K contents of aboveground part were higher than those of underground part.With the increase of cadmium concentration,cadmium accumulation in O.basilicum enhanced.[Conclusion] O.basilicum was a potential aromatic plant having highly accumulated cadmium,and it could be used for the phytoremediation in cadmium polluted soil.