Global Trends of Usage of Chlorophyll Fluorescence and Projections for the Next Decade
Popularity of different fluorometric methods based on publication count of the last ten years. (a) Venn diagram of the total number of exclusive publications (). (b) Trends of publications per year for each method. Linear equations were used for PAM and OJIP (, where is the number of publications per year, is the year, is the offset based on the previous decade, and is the rate constant) while exponential fitting was used for SIF (, where is the number of publications per year, is the year, and is the rate constant).