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Publication Type:
i
Refereed
Author(s):Xue, Bohan; Li, Na; Song, Guilong; Li, Shigang; Puyang, Xuehua; Li, Jinbo
Author Affiliation:Xue, Na Li, Song, and Jinbo Li: Institute of Turfgrass Science, Beijing Forestry University, Beijing, China; Shigang Li and Puyang: Shenzhen Techand [Tech and] Ecology & Environment Co., Ltd, Shenzhen, Guangdong, China
Title:Effect of cutting frequency on lead speciation in soil and lead accumulation in tall fescue
Source:[Caoye Kexue] [Pratacultural Science]. Vol. 35, No. 8, August 2018, p. 1852-1861.
Publishing Information:[Lanzhou Shi, China]: ["Cao Ye Ke Xue" Bian Jibu]
# of Pages:10
Keywords:TIC Keywords: Evaluations; Festuca elata; Lead uptake; Mowing frequency; Phytoextraction
Abstract/Contents:"To investigate the effects of different cutting frequencies (no cutting, once, twice, 5 times) and different lead (Pb) concentrations (0, 500, 1 000, 1 500 mg·kg-1) on Pb accumulation in tall fescue (Festuca elata), the change in Pb form and subcellular morphological structure were analyzed and cutting tests were conducted under Pb stress in pot culture. The main results were as follows: cutting treatment increased the acidity of soil, the acid-extractable and reducible state of Pb in the soil showed an increasing trend, and the acid-extractable and reducible state content of Pb under 5 cuttings were significantly higher than those under other cutting treatments (P<0.05). As cutting frequency increased, Pb content in the stubble and root of tall fescue increased, and the aboveground Pb accumulated mainly in the stubble. Under cutting treatment, a large amount of Pb accumulated in the cell wall of the root tip of tall fescue and the dense electron layer became more obvious. The number of plastids in the mature leaf chloroplasts of stubble increased sharply and oxidative damage was aggravated. Comprehensive analysis showed that cutting treatment can improve the bioavailability of Pb in the soil, promote the absorption of Pb by the roots of tall fescue, and enhance the transport Pb to the stubble part."
Language:Chinese
References:32
Note:Abstract also appears in English
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Xue, B., N. Li, G. Song, S. Li, X. Puyang, and J. Li. 2018. Effect of cutting frequency on lead speciation in soil and lead accumulation in tall fescue. (In Chinese) [Caoye Kexue] [Pratacultural Science]. 35(8):p. 1852-1861.
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Web URL(s):
http://cykx.lzu.edu.cn//article/2018/1001-0629-35-8-1852.html
    Last checked: 10/10/2018
http://cykx.lzu.edu.cn//EN/article/downloadArticleFile.do?attachType=PDF&id=12170
    Last checked: 10/10/2018
    Requires: PDF Reader
    Notes: Direct download
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