TLS Online TPP Program

#Question id: 10171


Quantum flux, or photon flux density (PFD), is the number of incident quanta (singular quantum) striking the leaf, expressed in

#6. System Physiology – Plant
  1. watts per square meter (W m–2)
  2. moles per square meter per second (mol m–2 s–1)
  3. μmol m–2 s–1
  4. joule per second ( J s-1)