3または4位アルキル置換フェノキシ酢酸及び塩素化関連化合物の除草活性

概要

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Twenty-eight compounds of 3-(or 4-) alkylphenoxyacetic acids and their analogues were synthesized and their herbicidal activities were evaluated. Several compounds were known as PGR; however, the herbicidal properties were little known. The purpose of the present study is to clear the relationship between their structures and their activities. The results are summarized as follows: (a) In germination test, many compounds showed strong activities for prohibiting elongation of root, and also for the shoot elongation of dicotyledons, but there was no activity prohibiting the growth of shoot of monocotyledons, (b) In spray test at 500 ppm, most of the compounds showed the herbicidal activities and also some hormonal activities to dicotyledons, (c) The strongest herbicidal activity was observed in compound No. A-20 [MEIP] and its strength was the same as that of MCPA.
明治大学の論文