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Effects of Pb on the Growth and the Elements Absorption of Mirabilis jalapa Seedlings(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2013年23期
Page:
75-77
Research Field:
Publishing date:

Info

Title:
Effects of Pb on the Growth and the Elements Absorption of Mirabilis jalapa Seedlings
Author(s):
YU Feng-ming1；LIU Yu-yan2；ZHANG Wei-wei1
1.College of Life Science and Technology，Hebei Normal University of Science and Technology，Qinhuangdao,Hebei 066004
2.College of Horticulture and Technology，Hebei Normal University of Science and Technology，Changli,Hebei 066600
Keywords:
Pb; Mirabilis jalapa; growth; elements absorption
PACS:
S 685.16
DOI:
-
Abstract:
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，Cd，Cr，Fe，Pb and Mn transport.

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Last Update: 2014-08-18