农业环境科学学报2016，Vol.35Issue(10)：1888-1894,7.DOI:10.11654/jaes.2016-0687
不同品种苋菜对砷的吸收能力及植株磷砷关系研究
Arsenic uptake by different species of amaranth and the relationship between arsenic and phosphate in ama-ranth
摘要
Abstract
In this study, a hydroponic experiment was conducted to investigate the resistance and accumulation of arsenic(As)in five ama-ranth species at two exposure concentrations of As(2 mg·L-1, 4 mg·L-1)as well as correlation relationship between arsenic and phosphorus contents in amaranth. At the As concentration of 2 mg·L-1, the growths of Huahongliuye and Hongliuye amaranth were improved, but the other three species were inhibited compared with the control without As addition. Differently, the growths of all the five species were signifi-cantly inhibited when the concentration of As increased to 4 mg·L-1. For the two investigated As treatments, As accumulation in the shoot of the five amaranth species ranked in the same order as follows:Baiyuanye>Hongliuye>Huahongliuye>Huahong>Yanxuanhongyuanye. Fur-thermore,the content of phosphorus in amaranth shoot significantly correlated with that of As(r=0.881)at the As concentration of 2 mg·L-1, but insignificant correlation occurred at the As concentration of 4 mg·L-1(r=0.816). Additionally, significant correlation between phospho-rus content in amaranth seed and that of As in amaranth shoot was also observed for the two investigated As treatments at 2 mg·L-1(r=0.937)and 4 mg·L-1(r=0.971).关键词
苋菜/砷/低吸收/磷/品种Key words
amaranth/arsenic/low-accumulation/phosphorus/species分类
资源环境引用本文复制引用
张骞,曾希柏,苏世鸣,王亚男,白玲玉,吴翠霞,高雪,贾武霞..不同品种苋菜对砷的吸收能力及植株磷砷关系研究[J].农业环境科学学报,2016,35(10):1888-1894,7.基金项目
国家自然科学基金项目“中轻度污染农田中砷的稳定化及根土界面行为研究” （）
