2,4‐D - 2,4‐D
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Phenoxyacetic acid herbicide. It is historically important as it was the first practical herbicide. It is also called 2,4-PA, which stands for 2,4-dichlorophenoxyacetic acid. In 1942, PW Zimmermann of the Boyce Thompson Laboratory in the United States, while investigating the auxin activity of synthetic auxins, discovered that 2,4-D exhibited strong auxin activity at low concentrations and herbicidal activity at high concentrations. This led to its development as a practical herbicide. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
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フェノキシ酢酸系除草剤。実用的除草剤第1号になった，歴史的にも重要なものである。2,4‐dichlorophenoxyacetic acidの略で2,4‐PAともいう。1942年アメリカのボイストムソン研究所のツィンマーマンP.W.Zimmermannが，合成オーキシン類についてオーキシン活性を追究している過程で，2,4‐Dが低濃度で強力なオーキシン活性を，高濃度では殺草活性を示すことを見いだしたことが端緒となって，実用除草剤として開発されるに至ったのである。
出典 株式会社平凡社世界大百科事典 第２版について 情報 |
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