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Position: Home > Articles > Effects of Pb on the Growth and the Elements Absorption of Mirabilis jalapaSeedlings Northern Horticulture 2013 (23) 83-85

铅对紫茉莉幼苗生长及元素吸收的影响

作  者:
于凤鸣;刘玉艳;张维维
单  位:
河北科技师范学院园艺科技学院;河北科技师范学院生命科技学院
关键词:
铅(Pb);紫茉莉;生长;元素吸收
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。
译  名:
Effects of Pb on the Growth and the Elements Absorption of Mirabilis jalapaSeedlings
作  者:
YU Feng-ming;LIU Yu-yan;ZHANG Wei-wei;College of Life Science and Technology,Hebei Normal University of Science and Technology;College of Horticulture and Technology,Hebei Normal University of Science and Technology;
关键词:
Pb;;Mirabilis jalapa;;growth;;elements absorption
摘  要:
Taking Mirabilisj alapaas 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(≤150mg/L)promoted the growth of shoot,and inhibited its growth at higher concentration(≥200mg/L).Meantime,150mg/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,Cd,Cr,Fe,Pb and Mn transport.

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