Campiranon S, Koukkari W L
Chronobiologia. 1976 Apr-Jun;3(2):137-48.
The susceptibility of bean plants, Phaseolus vulgaris L., cv. Executive, to 2,4-dichlorophentoxyacetic acid (2,4-D) appeared to depend upon the time of application. Oscillations in response to 2,4-D were evident in plants subjected to conditions of alternating light and dark spans, continuous illumination or darkness. The fresh and dry weight of plant material was generally less when 2,4-D was applied to plants near the later portions of the light span.
普通菜豆（Phaseolus vulgaris L.）品种“Executive”对2,4-二氯苯氧乙酸（2,4-D）的敏感性似乎取决于施用时间。在经历明暗交替、持续光照或黑暗条件的植株中，对2,4-D的反应波动明显。当在光照期后期向植株施用2,4-D时，植物材料的鲜重和干重通常较低。
