Abstract
It is shown that millimeter radiation with a wavelength of 5,6 mm, the density of the stream of 6,6 mwt/sm2 and the expositions of 2–30 minutes has an essential influence on the pollen of technical plants Cuphea lanceolata Ait. and Cuphea viscosissima Jacq. Effects of stimulation, inhibition and absence of any effect are established. The form of the dependence "exposition-effect" is specific to each subspecies of the mentioned plants. In most cases, the influence of the factor on the pollen with a low initial level of germination causes stimulation of the viability of the pollen, and that with a high level of germination causes the inhibition of the viability.