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Effect of Temperature on Quinclorac-Induced Ethylene Production from Corn Leaves
Yukari SUNOHARA, Hiroshi MATSUMOTO, Hiroaki IKEDA and Yutaka NOMA
J. Pestic. Sci.
24, 375-380 (1999)
Effect of temperature ethylene evolution from corn leaves, which was induced by on the herbicide quinclorac (3,7-dichloro-8-quinolinecarboxylic acid), was investigated. The results indicated that not only the temperature after quinclorac treatment but also that prior to the treatment significantly influenced the quinclorac-induced ethylene production from corn leaves. Furthermore, a rapid cooling (from 30N to 20N) caused suppression of quinclorac-induced ethylene production, depending on the cumulative temperature after the herbicide-application. On the contrary, a rapid warming (from 20N to 30N) during quinclorac application increased significantly the ethylene production more than the estimates accounted for by the cumulative temperature, suggesting that a rapid warming may increase the amount of ethylene biosynthesis enzyme induced by quinclorac under light exposure.
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