Effects of Zinc on The Growth of Several Vegetables

摘要：

　　Heavy metal Zn is one of the trace elements necessary to growth of vegetable,but Zn excessiveness also could cause damage.In this research,four vegetables were planted by soil culture method under different Zn concentration controlled by the exogenous Zn addition; their growth characteristics were analyzed to find the sensitive growth indexes to Zn and compare their tolerance to Zn pollution.Brassica Chinensis,B.napus,Lactuca sativa var.romana and L.sativa were selected as experiment materials.Results show that:low concentration of Zn (< 100 mg/kg) can promote significantly the plant height and root length growth of all the four vegetables,while,as the exogenous Zn increased to the concentration of 150 mg/kg,the number of leaves,the above-ground dry biomass and the underground dry biomass were suppressed significantly; in this experiment,the four vegetables appeared different degree sensitivity to Zn stress,L.sativa appeared highest tolerance and B.Chinensis appeared less sensitivity to Zn stress.

关键词： effect growth heavy metal vegetable Zn

作者: LIN Chen GE Xiuli

作者单位: Academy of Forest Inventory planning State Forestry Administration Peoples Republic of China,Beijin School of Light Chemistry and Environment Engineering,Shandong Polytechnic University,Jinan,250353,P

会议类型: 国际会议

会议名称: 3rd International Conference on Pollution Ecology(第三届污染生态学国际会议(3rd ICPE))

会议地点: 天津

会议语种:英文

页码: 73-73

在线出版日期: 2012-11-06（万方平台首次上网日期，不代表论文的发表时间）