| Abstrakt: |
The research where carried out in the greenhouse experimental plots afferent to the Flower and Arboriculture Department, Faculty of Horticulture, University of Agricultural Science and Veterinary Medicine Cluj-Napoca The biological material taken into study was represented by cuttings provided by species Buxus sempervirens, Ligustrum vulgare and Ligustrum ovalifolium vat. aureo-variegata. The cuttings have been collected after the green fence cuts made in the USAMV Park Cluj-Napoca. The experimental factors where: root substrate (Perlit 100%, Perlit 50% + Peat 50%), used species (Buxus sempervirens, Ligustrum vulgare, Ligustrum ovalifolium var. aureo-variegata), rooting regulator: Radistim 2. The tree factors where divided in tree repetitions. During the experiment the following observations where made: length of cuttings (cm), no. of leafs, diameter at the cutting base (mm), no. of nodes, no. of cuttings with root system, no. of roots/cutting, the length of the root (cm), the length of the root system (cm). Before root beginning at each species where made the following determinations: origin of the cuttings, length (cm), and no. of leafs, diameter at the base of cutting, no. of nodes. The main characteristics of the cuttings taken into study are in concordance with each species studied. The unilateral influence of the rooting substratum upon cuttings lead to the conclusion that the experimental variant Perlit 100% recorded best results compared with the experimental variant Perlit 50% + Peat 50%, for all the 3 species taken into study. The unilateral influence of species upon root development of cuttings records high values at the Ligustrum vulgare specie. The treatment of the cuttings with Radistim 2 determines a better and faster development of roots an all studied species. Following the mentioned above information's it's recommended to use Perlit 100% as a rooting substrate. For obtaining green fences in short period of time, resistant to pollution, pest and diseases it is recommended to use Ligustrum vulgate. This specie has a better development rhythm than Buxus sempervirens. [ABSTRACT FROM AUTHOR] |
