DEVELOPMENT AND TESTING A NEW TECHNOLOGY FOR PRODUCTION OF CHRYSANTHEMUMS PLANTING MATERIAL (CHRYSANTHEMUM s.l.)

Abstract

Chrysanthemums represent an important horticultural segment with uses in the autumnal to winter season, aesthetically extending the capitalization of urban open spaces. Propagation by cuttings at Chrysanthemum is the most convenient method of vegetative multiplication. There is, however, a great variability in the ability to form adventitious roots and regenerate new individuals by cuttings. Some cultivars are relatively easy to multiply by cuttings, and other species have a low capacity to rooting. In the present paper we focused on researches regarding the propagation of chrysanthemums (a1-Chrysathemum indicum, a2-Chrysanthemum × grandiflorum) by new type of cuttings (stem fragment with one leaf and axillary bud-SFLAB, b2) and on the evaluation of the capacity of rooting, given the increasing demand for floral planting material as a result of the development of landscape design interest in public spaces but especially private one. The main objective was to establish the influence of the cuttings characteristics (type of cuttings, with two variants-b1-control, top stem fragment-TSF; and b2, stem fragment with one leaf and axillary bud-SFLAB) on the rooting process and the length of developed roots in four variants of rooting substrate (c1-c4) for both types of proposed Chrysanthemum cuttings (b1-b2).