To biology of invasive species Galinsoga parviflora Сav. in Abkhazia

The results of the study of biological features of invasive species Galinsoga parviflora Cav. under the conditions of Abkhazia (Northwest Trans-Caucasia) are given. The works were carried out in 7 districts of the republic: Gagrasky, Goodautsky, Sukhumsky, Gulrypshsky, Ochamchirsky, Tkvarchalsky, Galsky. Morphometric measurements were carried out on 25 plants of each coenopopulation, on sites of 1 m² the height of plants, density, raw above-ground biomass of invasive species was estimated. The density of coenopopulations is high - from 76 to 126 plants on 1 m², the height of plants - from 83.4 to 95.0 cm, biomass - from 0.07 to 0.12 kg/m², the share of species participation in communities - from 11.2 to 24.2 %. For G. parviflora individuals, there is a low level of variation of all plant parameters. The maximum values for most parameters are noted in the Galsky district of Abkhazia. Most of Galinsoga parviflora 's populations are prosperous, characterized by high vitality. The species is confined to segetal communities and clogs gardens, row crops, although it is often noted in weed-ruderal communities in the conditions of high moisturization. The high seed productivity and duration of flowering under favorable climate leads to the expansion of the distribution area in Abkhazia, which makes it a vicious weed of vegetable crops.

чужеродный вид, Республика Абхазия, инвазия, Galinsoga parviflora Cav, ценопопуляция, морфометрические параметры, alien species, Abkhazia Republic, invasion, Galinsoga parviflora Cav, coenopopulation, morphometric parameters