A. tricolor leaf photosynthesis by leaf type and section


Amaranthus tricolor leave sections evaluated for Phi2 across natural light conditions.

TUG are the green tip sections of non-tricolored leaves

TUR are the red base sections of non-tricolored leaves

TTG are the green tip sections of tricolored leaves

TTR are the red base sections of tricolored leaves

TTY are the yellow mid sections of non-tricolored leaves.

See photos


Leaf Photosynthesis MultispeQ V1.0


Measures many photosynthesis-related parameters in <15 seconds, including:

  • Chlorophll Fluorescence: Phi2, PhiNPQ, PhiNO, NPQt, qL, LEF
  • Relative Chlorophyll: SPAD
  • Proton Motive Force: ECSt, vH+, gH+
  • Absorbance at: 450, 535, 605, 650, 730, 850, 880, and 940nm.
  • Leaf Thickness (in mm), angle, and cardinal direct...


  1. Plant ID number (Multiple Choice)
  2. Which type of leaf is being measured? (Multiple Choice)



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