• Title/Summary/Keyword: Fm/Fo

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Photosynthesis and Chlorophyll Fluorescence of Evergreen Hardwoods by Drying Stress (건조 스트레스가 난대 상록활엽수의 광합성 반응 및 엽록소 형광반응에 미치는 영향)

  • Jin, Eon-Ju;Yoon, Jun-Hyuk;Bae, Eun-Ji;Choi, Myung-Seok
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.21 no.3
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    • pp.196-207
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    • 2019
  • This study was carried out to investigate the effects of C. japonica, D. morbifera, D. macropodum, I. anisatum, Q. glauca and R. indica To investigate the photosynthetic ability, chlorophyll content, chlorophyll fluorescence analysis, and physiological environmental. The photosynthetic rate, cancer respiration rate, stomatal conductance, and rate of evaporation tended to decrease as a result of drying stress in the no-water condition for 28 days. I. anisatum, Q. glauca and R. indica showed a low rate of less than 40% until 28 days of no-treatment. The total chlorophyll contents were decreased in the order of D. macropodum> D. morbifera> C. japonica> Q. glauca> M. thunbergii> R. indica> I. anisatum. Chlorophyll fluorescence analysis showed that there was no change in the qP, but after 28 days no $Fv/F_m$, $F_o$, $R_{fd}$, $NPQ_{_-LSS}$ can be a useful indicator for quantitative estimation within a short period of time with a marked reduction rate of PSII quantum yield ${\Phi}PSII$ in the rectified state by continuous light during the nominal adaptation period. In the case of I. anisatum, Q. glauca and R. indica If water management can be carried out at intervals, it may be possible to plant trees in trees and landscape trees.