Effect of preparation emistim on some flower-ornamental cultures at introduction in Bashkortostan

Abstract

Emistim is one of the next-generation growth regulators that are active in plant organisms in very low concentrations. The purpose of this work was to study the effect of plant growth regulator Emistim on the growth and development of representatives of the genus Hosta Tratt., Iris L., Narcissus L. based at the South-Ural Botanical Garden-Institute of Ufa Federal Research Center of Russian Academy of Sciences. The research method is a field experiment. The scheme of the experiment included the following options: control is plants without treatment; experience is spraying of vegetative parts of plants with Emistim. Seed production was estimated by the method of I. V. Vainagy. As a result of the experiments, a significant change in the biometric parameters of the studied plants was shown. The Hosta increased the following indicators: plant height (up to 46 %), petiole length (up to 30 %), the number of flowers on one peduncle (up to 56 %), the number of fruits on one peduncle (up to 109 %), potential seed productivity (up to 51 %), etc. Irises have also been positively affected: the size of the length of the leaf of the shortened shoot changed (up to 32 %), the width of the peduncle sheet (up to 20 %), the width of the standard (up to 27 %). Narcissus showed an increase in the diameter of the flower (up to 25 %). The result of the influence of the plant growth regulator Emistim significantly depends on the species and varietal characteristics of the studied genera. Each object requires the selection of individual physiologically active substances and optimal conditions for their use. However, it should be noted that the use of this preparation on the studied crops is a promising direction for the practice of crop production.