Flowering stage characteristics of cadmium hyperaccumulator Solanum nigrum L. and their significance to phytoremediation

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	Flowering stage characteristics of cadmium hyperaccumulator Solanum nigrum L. and their significance to phytoremediation
	Zhou, QX; Wei, SH; Koval, PV; Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2006
卷号	369 期号:1-3 页码:441-446
关键词	Flowering Stage Biomass SoL.num Nigrum L. Hyperaccumulator Phytoremediation Efficiency Heavy Metal
ISSN号	0048-9697
英文摘要	The Cd accumulation and biomass characteristics of a newly found Cd-hyperaccumulator Solanum nigrum L. were investigated at the flowering stage and the mature stage. The results showed that the concentration of Cd in the stems and leaves of S. nigrum harvested at the flowering stage was up to 83.1% and 85.5% of that at the mature stage, and the dry-weight sum of the stems and leaves of S. nigrum harvested at the flowering stage was 93.4% of that at its seed maturity. The Cd-removing ratio by the shoots of S. nigrum harvested at the flowering stage was 87.5% of that at the mature stage. It was also found by observing the growth duration of S. nigrum that the frostless period at the experimental site was at least twice as long as the growth duration from the seedling-transplanted phase to the flowering stage of the hyperaccumulator. Therefore, S. nigrum could be transplanted into contaminated soils twice in one year by harvesting the hyperaccumulator at its flowering stage based on climatic conditions of the site and traits of the plant growth. In particular, the extraction efficiency of Cd by harvesting the shoots of S. nigrum at its flowering stage twice in one year could increase 75.0% compared to that of at its single maturity. Thus, the method of multiple harvesting would be very important to increase phytoremediation efficiency in practice. (c) 2006 Elsevier B.V. All rights reserved.
学科主题	Environmental Sciences
语种	英语
WOS记录号	WOS:000240892700038
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/54851]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhou, QX,Wei, SH,Koval, PV,et al. Flowering stage characteristics of cadmium hyperaccumulator Solanum nigrum L. and their significance to phytoremediation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2006,369(1-3):441-446.
APA	Zhou, QX,Wei, SH,Koval, PV,&Zhou, QX, Chinese Acad Sci, Inst Appl Ecol, Key Lab Terr Ecol Proc, Shenyang 110016, Peoples R China.(2006).Flowering stage characteristics of cadmium hyperaccumulator Solanum nigrum L. and their significance to phytoremediation.SCIENCE OF THE TOTAL ENVIRONMENT,369(1-3),441-446.
MLA	Zhou, QX,et al."Flowering stage characteristics of cadmium hyperaccumulator Solanum nigrum L. and their significance to phytoremediation".SCIENCE OF THE TOTAL ENVIRONMENT 369.1-3(2006):441-446.