Collections of photosynq measurements (Ternopil)


This project will involve collection of photosynq measurements from:1.Top,middle,lower leaves; 2. Different leaves colors; 3. Time of day (light/dark), 4. Other measurements


The One v3.0 (Phi2, NPQt, using Multi-Phase Flash)

The One Protocol to rule them all! Phi2, NPQt combined.

Changes from previous The One protocol: - Removed the Phi1 measurement, which was producing a lot of invalid data (removed by Dan and Frank) - Implemented the multi-phase flash protocol created by Tom Avenson

Chlorophyll content (SPAD) III

REQUIREMENTS: Firmware v0.41 or higher. Measures transmission at 940nm and 650nm in order to determine the 'greenness' of a leaf, an indicator of chlorophyll content and nitrogen content. The 940 is used to account for leaf thickness. Improvements over Chlorophyll content (SPAD): - performs 3 different spads at 3 intensities for thin and thick ...

Proton Motive Force via DIRK

Estimates the proton motive force through the ATP synthase, thereby estimating ATP production. The proton motive force is measured by measuring the electrochromic shift (ECS), the shift in the absorbance of chlorophyll at ~520nm in the thylakoid membrane due to a shift in the electric field. The electric field is created by the accumulation of...


  1. Variant? (Multiple Choice)
  2. Is It control? (Multiple Choice)
  3. What factors influence the plant? (Multiple Choice)
  4. The level of the factor of influence on the plant? (Multiple Choice)
  5. Leaf position? (Multiple Choice)
  6. Leaf color? (Multiple Choice)
  7. Season (Multiple Choice)
  8. What kind of plants? (Short Answer)
  9. Time of day (Multiple Choice)



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