Plants and animals associated in biocenosis live within the biotope and develop directly influenced by effective or useful temperatures. The speed with which biochemical processes are carried out (t n -t o ) is dependent on the air temperature (t n ) and is limited by the biological threshold (t o ). Between reaction speed of biochemical processes characteristic of each species and temperature (processes underlying growth, development and multiplication of species) there is a close correlation, which allowed the formulation of mathematical equations very different from one species to another. Among these, the thermal constant equation can contribute fully to explain the processes of growth, development, propagation, biological spreading of species.

potato; seed; potentially productive; aphide; development; biological propagation

Presentation: oral