Proceedings of the Korean Society for Agricultural Machinery Conference (한국농업기계학회:학술대회논문집)

Korean Society for Agricultural Machinery (한국농업기계학회)
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COMPARISON OF NUTRIENT STRESS DIAGNOSIS OF CUCUMBER PLANT USING VARIOUS PHYSIOLOGICAL INSTRUMENTS

  • Sung, J.H. (National Agricultural Mechanization Research Institute. RDA) ;
  • Suh, S.R. (Dept. of Bio Systems ＆ Agricultural Eng., Chonnam National University) ;
  • Chung, G.C. (Dept. of Applied Plant Science., Chonnam National University) ;
  • Ryu, Y.S. (Dept. of Bio Systems ＆ Agricultural Eng., Chonnam National University) ;
  • Koh, B.J. (Dept. of Bio Systems ＆ Agricultural Eng., Chonnam National University)
  • Published : 2000.11.01
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Abstract

This paper represents our efforts to diagnose nutrient stresses using physiological instruments in cucumber plants. The stresses could be detected by measuring and analyzing the difference of chlorophyll content, photosynthetic efficiency(Fv/Fm), differential temperature(DT), stomatal resistance and light absorbance values between deficient and controlled plants. From the all over experiments, the stresses could be first diagnosed in the 8th day after treatment and the overall diagnosis rate was estimated at more than 50%.

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