Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)
- Volume 17 Issue 1
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- Pages.39-45
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- 1984
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
Studies of the Translocation and Metabolites of Radioisotope Phosphate(32P) Applied on Foliar under the Low Temperature Condition
저온처리(低溫處理) 수도체에 대한 엽면시비인산(葉面施肥燐酸)(32P) 의 체내 전유 및 대사산물(代謝産物)에 관(關)한 연구(硏究)
- Hwang, Young-Soo (Institute of Agricultural Sciences) ;
- Ryu, In-Soo (Institute of Agricultural Sciences)
- Published : 1984.03.25
Abstract
The effects of foliar application of phosphate was investigated in the light of plant physiological point of view. The phosphate applied on the foliar both in meiosis and heading time was penetrated considerably into the rice. The amount of P absorbed by foliar application at high temperature was higher than that at low temperature but still considerable amount of P was absorbed at low temperature. The phosphate applied on younger flag leaf was absorbed more vigorously than the second and third leaves. The absorbed P on leaf was translocated to the panicle, especially on the brown rice starch, then moved to another panicle wherever the phosphate was needed. The major fraction of absorbed P under high temperature condition was T.C.A. soluble-Ba insoluble phosphate of mainly phytic form but Ba soluble-EtOH insoluble fraction, sugar phosphate ester, was identified as dominant P under low temperature condition.
수도체(水稻體)가 감수분열기(減數分裂期) 및 츨수기(出穗期)에 저온(低溫)이 되었을 때 엽면시비(葉面施肥)된 인산(燐酸)이 식물체내(植物體內)로 침투(浸透)되는지의 여부(與否)와 침투(浸透)된 인산(燐酸)이 이삭으로 이동(移動)되어 어떠한 형태(形態)의 인산(燐酸)으로 곡립(穀粒)에 존재(存在)하는지를 알기 위해 상온(常溫)에서 생육(生育)한 벼와 저온처리(低溫處理)한 수도체(水稻體)를 상호비교(相互比較)하여 시험(試驗)을 실시(實施)한 결과(結果) 아래와 같이 요약(要約)되었다. 1. 감수분열기(減數分裂期) 및 출수기(出穗期) 수도(水稻)에 엽면시용(葉面施用)한
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