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植物生長調節劑的作用 植物生長調節劑的作用特點

  • 農業
  • 2023-04-19 18:42
植物生長調節劑是通過人工合成的一種與植物激素效果類似的化合物,可有效調節植物生長過程各個階段的生長,可以通過認為調節達到比較理想的效果。比如促進根、葉生長用赤霉素蘸根,提高菜籽產量在盛花期用三十烷醇噴灑葉面等。在作物的養殖中,不規范的使用植物生長調節劑,會對植物生長產生一些不良的作用,比如植物生長促進劑使用過多,會造成植株徒長,生長過快,影響其開花結果。

  簡介

  植物生長調節劑是一類與植物激素具有相似生理和生物學效應的物質。現已發現具有調控植物生長和發育功能物質有胺鮮酯(DA-6),氯吡脲,復硝酚鈉,生長素、赤霉素、乙烯、細胞分裂素、脫落酸、油菜素內酯、水楊酸、茉莉酸、多效唑和多胺等,而作為植物生長調節劑被應用在農業生產中主要是前9大類。

  按照***批準標簽上標明的使用劑量、時期和***,使用植物生長調節劑對人體健康一般不會產生危害。如果使用上出現不規范,可能會使作物過快增長,或者使生長受到抑制,甚至死亡。對農產品的品質會有一定影響,并且對人體健康產生危害。例如可以延長馬鈴薯、大蒜、洋蔥貯藏期的青鮮素(抑制發芽)具有致癌作用。我國法律禁止銷售、使用未經國家或省級有關部門批準的植物生長調節劑。

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