Popil N. Structure-functional peculiarities of the sexual dimorphism of the Angiosperm dioecious species of the Flora of Ukraine.

The thesis deals with the complex analysis of structure-functional peculiarities of the sexual dimorphism of the Angiosperm dioecious species of the Flora of Ukraine. The database of the flora of the Ukrainian dioecious plant species is evaluated and it includes 182 species of the Vascular Plants. The modern state of study of the problems of sex distribution was analysed. The sexual structure in the coenopopulations of the 9 model dioecious and gynodioecious species was studied. The diagnostic characters of the sex composition at the early stages of the plant development were established. The seed production of the gynodioecious species and stability of the male and female plants to the factors of the surroundings were studied.