[Modelling the effect of photosynthetic enhancement and chromatic transitions]

A simple method is proposed and analysed which explains characteristic manifestation of the enchancement effect (2nd Emerson effect) and of chromatic transients effect (Blinks effect). The model is based on the hypothesis concerning the ATP/NADP concentrations ratio with a change of falling light wavelength. The model is suggested to reflect the behaviour of the reduction pentosophosphate cycle (Calvin cycle) under low illumination intensity, when the photosynthesis rate is determined only by ATP and NADP.H concentrations formed in the course of different photochemical reactions.