摘要
采用人工控制光温条件的营养液培养方法，研究了营养液中磷营养对苗期水稻吸收不同浓度镉的影响。结果表明，（1）随着生长介质中磷营养浓度（磷的处理浓度为5，10，15mg／L）的增加，水稻植株的生物量和株高无明显变化；在各个磷处理水平上，随着镉浓度的增加，水稻地上都钢含量呈增加的趋势。（2）随着营养介质中磷浓度的增大，Cd0．1，Cd0．5，Cd1．0处理的水稻地上部钢含量均呈增加趋势，尤其是高镉浓度处理的植株。这说明营养介质中的磷在一定水平上可促进水稻对镉的吸收。
Solution culture was conducted to investigate the effect of P on Cd uptake by riceplant. The results showed that the biomass and the height of rice with the different Cd concen-tration did not significantly increase or decrease with the increase of P concentration in nutrientsolution,but the content of Cd in the shoot of rice increased at P10, P15 treatments. Cd contentof rice shoot increased at each P treatment with the increase of Cd concentration.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
1998年第4期28-31,共4页
Journal of Hebei Agricultural University
基金
国家自然科学基金
关键词
水稻
苗期
磷营养
累积镉
Rice
Seedling stage
P nutrition
Cd accumulation
