Effects of 2,4-dichlorobenzoic Acid on the Fruit Yield of Cucumber Grown by Split-root System Hydroponic Culture.

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  • ２，４‐Ｄｉｃｈｌｏｒｏｂｅｎｚｏｉｃ　ａｃｉｄがスプリット・ルート法で水耕されたキュウリの収量に及ぼす影響
  • 2 4 Dichlorobenzoic acid ガ スプリット ルートホウ デ スイコウ サレタ キュウリ ノ シュウリョウ ニ オヨボス エイキョウ

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Abstract

The effects of 2, 4-dichlorobenzoic acid (DCLBA) on the number of cucumbers (Cucumis sativus L.) harvested were evaluated by split-root system hydroponic culture. DCLBA (10μmol·liter-1) in the nutrient solution severely damaged the roots by disrupting the integrity of epidermal cells, and remarkably inhibited the uptake of NO3-, H2PO4- and Κ+ ions. As a result, DCLBA significantly inhibited the number of cucumbers harvested. Supplementation of the nutrient solution with activated charcoal in one side pot recovered the inhibition especially for the uptake of nutrients, and partly recovered the harvested fruit number per plant compared to that without charcaol. These results indicated that DCLBA affected the uptake of nutrients, and inhibited the growth of young fruit after adsorption from roots.

Journal

  • Shokubutsu Kojo Gakkaishi

    Shokubutsu Kojo Gakkaishi 13 (1), 59-62, 2001

    JAPANESE SOCIETY OF AGRICULTURAL, BIOLOGICAL AND ENVIRONMENTAL ENGINEERS AND SCIENTISTS

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