摘要
以紫茉莉为试材,采用水培试验方法,研究了铅(Pb)胁迫对紫茉莉幼苗生长及元素吸收的影响。结果表明:Pb抑制紫茉莉根的生长,低浓度Pb(≤150mg/L)促进紫茉莉地上部分的生长,高浓度Pb(≥200mg/L)则抑制地上部分的生长;当Pb浓度为150mg/L时,促进紫茉莉对Ni、Cu、Mg、Fe、Pb和Cr元素的吸收,抑制了Ca、Cd和Mn元素的吸收,促进了Ca、Cu和Mg元素向地上的转移,抑制了Ni、Cd、Cr、Fe、Pb和Mn元素向地上转移。
Taking Mirabilis jalapa as material, growth responses and elements accumulating characteristics at Pb stress by aquatic culture were studied. The results showed that,low concentrations of Pb inhibited roots growth, Pb （≤150 mg/L） promoted the growth of shoot,and inhibited its growth at higher concentration （≥ 200 mg/L）. Meantime,150 mg/L Pb promoted the absorption of Ni,Cu,Mg,Fe,Pb and Cr,but inhibited Ca,Cd and Mn. Pb promoted the transport of Ca,Cu and Mg from the underground parts to the shoots, but inhibited Ni,CA, Cr, Fe, Pb and Mn transport.
出处
《北方园艺》
CAS
北大核心
2013年第23期75-77,共3页
Northern Horticulture
基金
河北省教育厅自然科学研究资助项目(2008445)
