Studies of reproductive biology of seed plants in the Nikita Botanical Gardens

Abstract

The paper presents the results of study the reproductive biology of a number of higher plants and shows the features of the formation of their generative structures, pollination, fertilization and seed formation. It has been established that the studied species have a high reproductive potential, they are characterized by the conjugacy in the development of male and female gametophyte and gametogenesis, the relationship and relevance of the development of flower elements and pollinating insects, etc. It is indicated that the limiting factors of high productive reproduction and reproduction of the studied plants are anomalies of the processes of formation of generative structures that occur during critical periods under the influence of extreme environmental factors, weak exchange of genetic information due to discontinuity of the area and small number of cenopopulations, as well as human impact. It is shown that the current state of natural cenopopulations of the studied rare species of the Crimean flora necessitates the development and strict observance of scientifically based measures for their protection.