Fruit growing
and viticulture of South Russia

Annotation

The article presents the results of the research of the physiological effect of stimulant influence on the morphometric parameters of the introduced promising ornamental types under the Southern Ural condi-tions. The research have shown the expediency of using of Zircon and Ribav-Extra preparations as rooting stimulants of green cuttings of studied ornamental species. After treatment of green cuttings before planting the output of standard sapling of Berberis thunbergii 'Atropurpurea' was within 73,9-78,9 %, the output of Cotoneaster lucidus sapling was 65,8-76,0%. The highest percentage of cuttings with an extensive root system was observed with Zircon using. Output of standard Rosa rugosa sapling is 96,5%, the output of Potentilla alba � 88,4% and Aronia melanocarpa sapling output is 72,5%. The research of seasonal development of uterine plants allow you to determine the periods of the most intense metabolic activity and the enzymes activation, as well as the optimal term of green cutting under the conditions of Southern Ural (on the of the Orenburg Region). Based on degree of rooting capability 2 groups of species were identified: easy rooting group (Rosa rugosa, Potentilla alba, Ber-beris thunbergii 'Atropurpurea' � root formation occurs at the same time, accompanied by the active energy of the buds awakening and shoots growing) and a group having an average degree of rooting (Aronia melanocarpa , Cotoneaster lucidus � root formation has a longer period, shoot growth is less active than that in the first group). Based on the study of stimulants effect on morphological indicators of introduced promising species of ornamental plants it was proved that the stimulants of Zircon and Ribav-Extra have had a positive effect on the rooting, growth, development and quality of sapling of ornamental species.