On the basis of the algorithm of the organogenesis cycle and the meteorological data available for forming the base of meteorological parameters during each phenophase, i.e. the defined algorithmic step, we provided conditions for the development of the model of ecological functions of the organogenesis cycle in the potato. The methodological model represents a computer program which stores meteorological data daily and calculates the trends immediately. The average accumulation of the analyzed parameters was also calculated on the basis of these trends.
The model developed in this manner, would, on the basis of the average values of several-year- functions and recorded variations of ecological parameters, within each defined stage, i.e. the defined algorithmic step, increase its preciseness in time concerning the estimation of the moment of their onset and of the expected degree of productivity from the ecological or agrotechnical aspect.