ROOTING GREEN CUTTINGS OF ROSES OF DIFFERENT GARDEN GROUPS

Abstract

In a greenhouse, we studied the rooting rate of cuttings of three varieties of roses belonging to different garden groups - polyanthus (Fair Play), climbing (Wedding day) and miniature (Roulettii) on various substrates using rooting stimulators. Heteroauxin, zircon (in the form of a solution) and cornevine (in the form of a powder) were used as rooting stimulators. The substrates were perlite, peat mixture and sand: soil in equal proportions. 60 days after planting, the percentage of rooted cuttings and morphological parameters of rooting such as the number of roots, the volume of the root system and the number of new leaves were determined. It was established that rooting rate of cuttings treated with heteroauxin was 60-100%, zircon - 40-100%. Best of all, cuttings of a polyanthus rose rooted, and worst of all, miniature rose. In the control, this indicator did not exceed 40%. Cornevine not only did not stimulate the rooting of the cuttings, but in some cases even inhibited this process in relation to the control. Heteroauxin and zircon significantly improved the rooting rate of cuttings. In this case, the first stimulated the development of the root system better, increasing the number of roots on the cuttings and the volume of the root system, while the second better influenced the vegetative sphere, significantly increasing the number of leaves on the cuttings. In most cases, the type of substrate
did not significantly affect either the percentage of rooting or the morphological indicators of rooting