The effect about three products isolated by column chromatography of n-butanol extracts from of Solidago Canadensis root on seed germination was not significant, and on the growth of Triticum aestivum seedling allelopathy had a concentration effect.
加拿大一枝黄花根部正丁醇萃取物的三种柱层析分离产物对小麦种子萌发无显著影响,对小麦幼苗生长的化感作用均具有浓度效应。
参考来源 - 加拿大一枝黄花无菌苗培养体系的建立及其根提取物的化学生态效应研究·2,447,543篇论文数据，部分数据来源于NoteExpress
尽管二氧化硫低浓度效应的因果关系尚不确定，但是，降低二氧化硫浓度很可能减少对混合污染物的暴露。
Although the causality of the effects of low concentrations of SO2 is still uncertain, reducing SO2 concentrations is likely to decrease exposure to co-pollutants.
实验室实验主要研究了浮游植物生长的营养盐浓度效应，石油烃和重金属对浮游植物生长的影响等。
The laboratory experiments mainly included the effect of nutrient concentration on phytoplankton growth, bioaccumulation and toxicity of heavy metals and petroleum hydrocarbon (PH) to phytoplankton.
本研究报道了界面带电、浓度效应、阴离子共吸附对铜在金（ 100 ）表面的欠电位沉积层的稳定性所造成的影响。
We report here on the influence of surface electrification, concentration effects, and anion co-adsorption on the stability of the copper underpotential deposition layer on the gold (100) surface.
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