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Effects of HCO-3 on absorption and transportation of Zn for different rice cultivars(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
Vol.07 No.6
Page:
532-535
Research Field:
Reviews
Publishing date:

Info

Title:
Effects of HCO-3 on absorption and transportation of Zn for different rice cultivars
Author(s):
XU Xiaoyanet al.
(1Institute of Economics and Technology , University of Science and Technology of China, Hefei230052, China) (2Department of Soil Chemistry, Zhejiang University, Hangzhou310029, China)
Keywords:
Keywords HCO-3 Zn-inefficient rice cultivar Zn-efficient rice cultivar rice growth Zn absorption and transportation
CLC:
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PACS:
DOI:
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DocumentCode:

Abstract:
Abstract Effects of HCO-3 on the growth and Zn absorption and transportation of different rice cultivars, the Zn-inefficient cultivar (IR26) and the Zn-efficient cultivar (IR8192-31-2), were investigated by solution culture. Application of HCO-3strongly inhibited root growth of Zn- inefficient cultivar, especially at low Zn concentration, while root growth of the Zn-efficienct cultivar was slightly stimulated by HCO-3. HCO-3 inhibited both Zn absorption and transportation from roots to shoots for the Zn-inefficient cultivar .These results demonstrated that the inhibition of root growth by HCO-3 was likely to be the initial step and then Zn deficiency was induced in lowland rice. Fig 1, Tab 3, Ref 9

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Last Update: 2002-10-25