• 作者： 張唯勤; 徐美珠; 邱寶玲; 陳學貞
• 作者服務機構： 中央研究院植物研究所
• 中文摘要： 木計晝目標為：(1)確定控制水稻分?的內部荷爾蒙因子。(2)在一、二期稻作環境情況下，此
  等內部荷爾蒙因子之活性比較。(3)由上兩項試驗資料之襄助，尋求能促進水稻分?之人工合成生
  長素。試驗結果如下：(1)水稻分?一如其他植物，主要受auxin與cytokinin之控制。前者由葉製
  造抑制分藥，後者由根生成上送，促使側芽活化。(2)一期稻作環境情況下，水稻根部之cytokinin
  活性較二期水稻者強。由此兩項資料導致我們發現葉面噴施兩種auxin運移抑制劑，DPX-1840
  和chloroflurenol，0.5～5 mM濃度，能促進水稻分蘗二倍。.
  o
• 英文摘要： The aim of this project are：(1) eluci-dating the hormonal factors controlling of rice;(2) comparing the cytokinin activities of rootsystem cultivated under environmental conditionsof 1st and 2nd rice crops in Nankang area; and(3) looking for synthetic plant growth regulatorswhich have promoting effect on tillering andyield of rice. Results of these approaches area:(1）The tillering of rice are mainly controlled byauxins and cytokinins. Leaves produce auxinsand exhibit inhibitory effect on tillering, whilecytokinins synthesized in roots are required forbud activation. (2) Rice cultivated under 1stcrop condition contains higher cytokinin activi-ties than that of 2nd crop. (3) At concentra-tions ranging from 0.5-5 m M, DPX-1840 andchlorflurenol, two auxin transport inhibitors,greatly promote tillering.
• 中文關鍵字： --
• 英文關鍵字： --