Polyamine Biosynthesis in Red Pepper and Chinese Cabbage by the Application of Liquid Pig Manure

돈분뇨 액비시용에 의한 고추 및 배추의 polyamine 생합성

  • Received : 2003.09.09
  • Accepted : 2004.03.11
  • Published : 2004.06.30

Abstract

To investigate the availability of nitrogen decomposed and released from liquid pig manure (LPM), this experiment was performed with red pepper (Capsicum annuum L., cv. Hanbando), and Chinese cabbage (Brassioa campestris L., cv. Konaenggiyeureumbaechoo) in 2001. Based on the total nitrogen of chemical fertilizer, both red pepper and chinese cabbage were treated with three and four applications of LPM, respectively. Yield of red fruits in the red pepper was increased by an enhancement of LPM application. However, that of chinese cabbage was enhanced with a reducing supply of LPM. Biosynthesis of polyamine in both crops such as red pepper and chinese cabbage was large in the early growth stage and was not increased by LPM application. The high biosynthesis of bound polyamine, monoamine and diamine, in the early growth stage was changed in an increase of conjugated polyamine and polyamine with a process of crop growth. Inorganic components in the leaf of red pepper by LPM application were equal or slightly lower than in chemical fertilizer, however, from the middle growth stage, contents of phosphate and potassium were increased. Those of chinese cabbage were slightly decreased from the early growth stage to the late. Considering this experiment, the thoughtless supply of LPM has not resulted in certain crop damages, and an application of LPM to increase a yield was different from crop species at some extent.

밭토양에 돈분액비를 기비로 전량시용하고 고추 및 배추에 대한 수량, polyamine 생합성량 및 잎의 무기성분 함량을 경시적으로 조사하였다. 고추의 적과 수량은 액비 시용량이 증가할수록 많아졌고 배추수량은 액비 시용량이 증가할수록 감소하였지만 화학비료 대비 액비 시용량간에 유의적인 수량차이는 보이지 않았다. 작물의 stress 발현물질인 polyamine의 경시적인 생합성량을 보면 두 작물 모두 액비시용구가 화학비료 시용구보다 낮아 액비에 의한 생리적인 질소stress는 발생하지 않았다. 생육시기별로 보면 생육초기에는 bound polyamine과 monoamine의 생합성량이 많았으나 생육기간의 경과에 따라 conjugated polyamine과 polyamine의 생합성량이 증가하였다. 또한 고추는 액비시용으로 화학비료에 비하여 잎의 인산 및 칼리 함량은 증가하였고 질소, 칼슘 및 마그네슘 함량은 감소하였지만, 배추 잎의 무기성분 함량은 화학비료구와 큰 차이가 없었다.

Keywords

References

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