Løkke H
Ecotoxicol Environ Saf. 1984 Feb;8(1):1-14. doi: 10.1016/0147-6513(84)90038-1.
Sinapis alba L., Lapsana communis L., Achillea millefolium L., Brassica napus L., Lactuca sativa L., and Lycopersicum esculentum L. were exposed to 2,4-dichlorophenoxy [2-14C]acetic acid (2,4-D) at 10 micrograms liter-1 in artificial rain, pH 6.5 and 3.3. The 2,4-D was absorbed in all species tested. Concentrations of parent 2,4-D appeared at the highest level in Achillea (0.1 mg kg-1 dry wt), and at zero level in Lycopersicum. Twenty-one daily treatments at pH 6.5 for 30-min periods increased dry-matter concentrations (P less than or equal to 0.05) in the leaves of Achillea and decreased those in Brassica. No change in dry-matter concentration was observed in the leaves of Brassica by seven daily treatments for 30-min periods at pH 3.3.
将白芥子、稻槎菜、蓍草、甘蓝型油菜、生菜和番茄暴露于pH值为6.5和3.3的人工雨水中，其中含有10微克/升的2,4-二氯苯氧[2-¹⁴C]乙酸（2,4-D）。所有受试物种均吸收了2,4-D。母体2,4-D的浓度在蓍草中最高（0.1毫克/千克干重），在番茄中为零。在pH值为6.5的条件下，每天处理21次，每次30分钟，增加了蓍草叶片中的干物质浓度（P≤0.05），降低了甘蓝型油菜叶片中的干物质浓度。在pH值为3.3的条件下，每天处理7次，每次30分钟，未观察到甘蓝型油菜叶片干物质浓度的变化。
