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Journal of Tea Science ›› 2019, Vol. 39 ›› Issue (5): 537-546.doi: 10.13305/j.cnki.jts.2019.05.005

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Effect of Fluoride and Aluminum Interaction on the Chlorophyll Fluorescence Characteristics of Tea Leaves

ZHONG Qiusheng1, LIN Zhenghe1, HAO Zhilong2, CHEN Changsong1, *, CHEN Zhihui1, YOU Xiaomei1, SHAN Ruiyang1   

  1. 1. Tea Research Institute, Fujian Academy of Agricultural Sciences, Fu'an 355015, China;
    2. College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2019-02-23 Revised:2019-05-21 Online:2019-10-15 Published:2019-10-15

Abstract: To study the effect of fluoride and aluminum intertreatment on the chlorophyll fluorescence characteristics of tea leaves, different concentrations of fluorine and aluminum were used and the fluorescence parameters were analyzed by modulated chlorophyll fluorescent instrument. The results found that: the actual photosynthetic efficiency Y(Ⅱ), the maximum (Fm), primary maximum photochemical efficiency of PSⅡ such as Fv/Fm and coefficient of photochemical quenching such as qP and qL of tea seedlings decreased with the increase of fluorine concentration without aluminum. But the non-photochemical quenching coefficients (NPQ), Fo, non-photochemical quenching coefficient (NPQ and qN) and PSII regulated energy dissipation increased. At low aluminium levels, Fm, Fv/Fm, Y(), NPQ and qN decreased with the increase of fluorine concentration, while qP and qL increased. There were no significant differences between the Fo, Y(NO) and Y(NPQ) values at this time. Under high aluminium treatment, with the increase of fluorine treatment concentration, the Fo gradually increased, Y(), Fv/Fm, qP decreased, Y(NPQ) and NPQ increased significantly under low fluorine concentration (100βmg·L-1). In short, for tea trees under fluorine stress, aluminum could reduce the damage to tea plants, especially under low aluminum level. The improving effects of photosynthetic efficiency were more obvious.

Key words: fluoride and aluminum interaction, tea leaves, fluorine content, chlorophyll fluorescence

CLC Number: