Bioavailability-based estimation of phytotoxicity of imazaquin in soil to sorghum
Bioavailability-based estimation of phytotoxicity of imazaquin in soil to sorghum
复制标题
基于生物利用度的土壤中灭草喹对高粱的药害评价
DOI：
10.1007/s11356-014-3757-z
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发表时间：
2015-04
影响因子：
5.8
通讯作者：
Yu, Yunlong
中科院分区：
文献类型：
--
作者：
Yin, Yuanming;Min, Shan;Wang, Shaoyun;Yu, Yunlong
敏感轮作作物因使用残留除草剂而造成的损害时有发生。土壤中残留除草剂活性的评估一直受到农艺关注。为了准确测定毒性并获得在不同土壤中抑制生长50%（IC50）的可比浓度，采用CaCl2（CCaCl2）和H2O（CH2O）提取物以及原位孔隙水（CPW）中的灭草喹浓度来估算对高粱的IC50。基于CCaCl2和CH2O的IC50值分别为：安塞（AS）土壤中0.06 mg L−1，华家池（HJC）土壤中0.13 mg L−1，AS土壤中0.32 mg L−1，HJC土壤中0.71 mg L−1，变异系数分别为38.32和34.93%。然而，基于 CPW 的 IC50 值范围为萧山 (XS) 土壤中的 0.90 mg L−1 至 HJC 土壤中的 1.09 mg L−1，变异系数为 6.96%。这意味着基于原位孔隙水中灭草喹浓度的 IC50 在五种土壤中几乎相同。随着对更多除草剂和植物物种的进一步研究，该方法可能会扩展到估计残留除草剂对植物的植物毒性。
The injury to sensitive rotational crops caused by residual herbicides from their applications has happened frequently. The assessment of activity of residual herbicide in soil has been of agronomic concern. To accurately determine the toxicity and obtain a comparable concentration that inhibits growth by 50 % (IC50) in different soils, the concentrations of imazaquin in CaCl2(CCaCl2) and H2O (CH2O) extraction and in in situ pore water (CPW) were adopted for the estimation of IC50 to sorghum. The IC50 values based on CCaCl2and CH2Owere 0.06 mg L−1in soil Ansai (AS) to 0.13 mg L−1in soil Huajiachi (HJC), 0.32 mg L−1in soil AS to 0.71 mg L−1in soil HJC, respectively, with variation coefficients of 38.32 and 34.93 %. However, CPW-based IC50 values ranged from 0.90 mg L−1in soil Xiaoshan (XS) to 1.09 mg L−1in soil HJC with a variation coefficient of 6.96 %. This implies that the IC50 based on imazaquin concentration in in situ pore water is almost identical in the five soils. With further studies with more herbicides and plant species, this method might be expanded for the estimation of phytotoxicity of residual herbicide(s) to plant(s).
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影响因子：
8.8
作者：
M. Ramezani;D. Oliver;R. Kookana;W. Lao;Gurjeet Gill;C. Preston
通讯作者：
M. Ramezani;D. Oliver;R. Kookana;W. Lao;Gurjeet Gill;C. Preston
DOI：
10.1039/jr9600003973
发表时间：
1960-01-01
期刊：
JOURNAL OF THE CHEMICAL SOCIETY
影响因子：
--
作者：
GILES, CH;MACEWAN, TH;SMITH, D
通讯作者：
SMITH, D
影响因子：
11.4
作者：
Yiping Xu;F. Spurlock;Zijian Wang;J. Gant
通讯作者：
Yiping Xu;F. Spurlock;Zijian Wang;J. Gant
DOI：
10.1016/s0021-9673(02)00452-1
发表时间：
2002-06
期刊：
Journal of chromatography. A
影响因子：
--
作者：
J. Luque‐Garcia;M. D. Luque de Castro
通讯作者：
J. Luque‐Garcia;M. D. Luque de Castro
DOI：
10.1614/wt-03-073r1
发表时间：
2004-09
期刊：
--
影响因子：
--
作者：
A. C. York;A. M. Stewart;P. Vidrine;A. Culpepper
通讯作者：
A. C. York;A. M. Stewart;P. Vidrine;A. Culpepper