浮稲における分げつ芽の生長に及ぼす通気の影響

• 花田 毅一

  筑波大学

• 香川 邦雄

  筑波大学農林学系

• 横山 靖子

  フタバ食品株式会社

• 野村 真一

  富士通愛知エンジニアリング

書誌事項

タイトル別名

• Effects of air supply on the growth of tiller buds in floating rice.

抄録

A few experiments were carried out to analyze the mechanism underlying the inhibition of tiller buds by submergence in deep water of the subtending leaf sheaths in floating rice. The growth of the tiller buds was inhibited by the deep water treatments. Air was supplied, under deep water, to the inner space between the leaf sheaths where the young 4th node or 5th node tiller bud grows (while inhibited by deep water) at the plant age of 5 or 6, respectively. The aeration treatment promoted the growth of the exposed tiller bud and of that immediately below it. A small window was made in the midrib of the basal part of the 5th leaf sheath in order to expose the subtended 5th node tiller bud to water and drown it under shallow water (deep enough to drown the tiller bud) conditions at the plant age of 6. The drowning treatment inhibited the growth of the exposed tiller bud to a similar extent to that of the deep water treatment, in spite of the shallow water conditions. Aeration applied to the tiller bud inhibited by the drowning treatment promoted the growth. On the basis of the results obtained it is suggested that gas exchange between the inner space and atmosphere may be inhibited by the submergence of the tips of leaf sheaths, and that the lack of oxygen required for respiration or accumulation of ethylene may be the cause of the inhibition of growth of the tiller buds. In future further studies will be carried out to analyze the role of ethylene in this function.

収録刊行物

• 熱帯農業

  熱帯農業 34 (4), 276-283, 1990

  日本熱帯農業学会

キーワード

• 通気
• 浮稲
• 生長
• 葉鞘
• 深水
• 分げつ芽

詳細情報

• CRID: 1390282681336084224
• NII論文ID: 130004373296
• DOI: 10.11248/jsta1957.34.276
• ISSN: 21850259
• ISSN: 00215260
• 本文言語コード: en
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可