IRON OXYHYDROXIDE EFFECT ON ROOTING OF CUTTINGS OF RIBES NIGRUM AND RIBES RUBRUM

Abstract

This work was aimed at studying the effect of a preparation containing nanoparticles of iron
oxyhydroxide on rooting and development of the root system of cuttings of the two plant species sensitive to
iron deficiency: Ribes nigrum and Ribes rubrum (Grossulariaceae). Research has shown that the iron
oxyhydroxide has an inhibitory effect on the growth and development of the root system of cuttings of black
and red currant. When concentration increases from 0.001% to 0.1%, rooting of cuttings decreases, and the
Spearman rank correlation shows strong negative dependence of the number of roots and their length on the
concentration of the preparation (Rs = -0.83 -0.94...) – the number of roots on cuttings decreases, while in
case of the maximum concentration, root length significantly reduces. In the studied concentration, the
preparation containing iron oxyhydroxide nanoparticles cannot be used as a stimulant of root formation for
rooting of cuttings of black and red currant.