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Research for inorganic salts enhancement on bio-activity of plant growth registers and its practical use for crop production

Research Project

Project/Area Number 13660036
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 園芸・造園学
Research InstitutionOsaka Prefecture University

Principal Investigator

OGATA Tsuneo  Osaka Prefecture University, Graduate School of Agriculture and Biological Sciences, Course of Agriculture and Environment, Associate professor, 大学院・農学生命科学研究科, 助教授 (10177115)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2002: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2001: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsPlant Growth Regulator / Permeability of chemicals / Inorganic salts / Cuticlar membrane / Reduction of agrochemicals / Lightening load for environment / Ammonium nitrate / Urea / 植物成長調節物質 / 硝酸アンモニウム / 無機塩添加
Research Abstract

It has been known in growers that the addition of a kind of inorganic salts as additives enhanced the activity of herbicide. However few studies have not be conducted on the physiological mechanism over the phenomenon. This study is focusing on the physiological explanation of the salt enhancement on simulation of PGR activity with some bioassay systems and attempting this technique for practical crop production.
We now report that 10mM-ammonium nitrate (AN) significantly increased auxin (NAA, 2,4-D) induced and AVG inhibited ethytene production by cowpea (Vigna unguiculata L.) leaf disks treated with simulated spray dropfets (1μL) of NAA. AN also enhanced GA3-induced elongation of the leaf sheath of dwarf rice (Oryza sativa L., cv. Tan-ginbozu).
The AN enhancement eflect was most pronounced under low humidity and high humidity following dryness of droplet under tow humidity, while it was minimal or not significant at continual high humidity. The ammonium salts of nitrate, sufiate and chloride were most active while the nitrate salts of potassium, sodium and calcium were without effect on NAA induction of ethylene production in cowpea leaf disks. The effect of AN on NAA-enhanced ethyfene production was most pronounced at pH 6, when the NAA molecule was present as a dissociated anion, though that effect was not significant at pH 3. The isolated AN preteeatinent followed NAA treatment was also effective on ethylene induction.
We can represent that a kind of inorganic salts enhanced bio-activity of some plant growth regulators, and can suggest the hypothesis that the sate loosen the denseness of cutidar lipoidal high polymer to stimulate the substantial permeability of cuticlar membrane.
In the practical orchards, AN application as additive in GA3 inhibited stronger the flower formation by GA. This technique can contribute to reduction of agrochemicals and lightening bad for environment.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 尾形凡生, 大谷環奈, 武富麻衣, 塩崎修志, 堀内昭作, 他2名: "アンモニウム塩の添加が植物生長調節物質の効果に及ぼす影響"園芸学会雑誌. 70巻,別冊2. 460 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 尾形凡生, 大谷環奈, 塩崎修志, 堀内昭作: "NAA誘導エチレン生成反応における硝酸アンモニウム添加および湿度の影響"園芸学会雑誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ogata, T., K. Otani, M. Taketomi, S. Shiozaki, S. Horiuchi, R.G. Fader and M.J. Bukovac: "Effect of ammonium salts as additives on performance of plant growth regulators"J. Japan. Soc. Hort Sci.. 70(suppl.2). 460 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Ogata, T., K. Otani, S. Shiozaki and S. Horiuchi: "Effect of Ammonium Nitrate as Additive and Humidity on Response of NAA-induced Ethylene Production"J. Japan. Soc. Hort Sci.. 71(suppl.2). 553 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 尾形凡生, 大谷環奈, 武富麻衣, 塩崎修志, 堀内昭作, 他2名: "アンモニウム塩の添加が植物生長調節物質の効果に及ぼす影響"園芸学会雑誌. 70巻,別冊2. 460 (2001)

    • Related Report
      2002 Annual Research Report
  • [Publications] 尾形凡生, 大谷環奈, 塩崎修志, 堀内昭作: "NAA誘導エチレン生成反応における硝酸アンモニウム添加および湿度の影響"園芸学会雑誌. 71巻,別冊2. 553 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ogata T. 他: "Ammonium Nitrate Enhances Plant Growth Regulator Performance"Etended Abst. 9th International Symp. on Plant Bioregul in Fruit Production. 120 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 尾形凡生 他: "アンモニウム塩の添加が植物生長調節剤の効果に及ぼす影響"園芸学会雑誌. 70巻別2. 460 (2001)

    • Related Report
      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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