THE INFLUENCE OF THE SPECTRAL COMPOSITION ON THE ROOT DEVELOPMENT OF ORNAMENTAL PLANTS IN VITRO

The results of studying the influence of spectral composition of light on rhizogenesis of ornamental plantmicrocuttings showed that the studied variant of the spectra of the led illuminators intensified the process of rhizogenesis of ornamental plant, led to a reliable increase of rooting ability of shoots, increased the number of roots on a rooted microcutting and accelerated their growth compared to those under the influence of fluorescent lamps. The maximum frequency of rhizogenesis of microcuttings was achieved with the following ratio of the light emission of red spectrum area 62%, green area 11%, blue area 27%. When using led illuminators, stronger and lower shoots are formed, compared to shoots obtained by illuminating plants with fluorescent lamps of white light.