除草剤CMMPに関する研究-2-特に作用性について

概要

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These experiments were carried out to study the porperties of a selective herbicide, solan (CMMP; N-(3-chloro-4-methylphenyl)-2-methylpentanamide).(1) Many varieties of tomato and Japanese honewort showed highly tolerance to postemergence application of solan.(2) Only apoplastic movement of solan, in one way direction from root to top, was observed in Kidney bean.(3) After spraying with solan, chlorophyll content in tolerant plants for solan did not decrease more than 10%, but in susceptible plants it decreased rapidly day by day.(4) Both of crude enzymes extracted from tolera nt and susceptible plants did not decompose solan. It was assumed that the selective action of solan did not come from the difference in the rate of decomposition of the herbicide.(5) Solan equally inhibited the Hill reaction in all chloroplasts prepared from many kinds of tolerant and susceptible plants.When the plants were treated by solan in vivo, Hill reaction of the chloroplasts prepared from tolerant plants on the 15 days after spraying was at the same level as the control.(6) Disappearance of solan selectivity by combining solan with phenitrothion, dimethoate or carbaryl, was assumed that it would occur in another place than Hill reaction.
園芸学会の論文