Phytocenological assessment of Vicia grandiflora Scop. on the Steppe plateau (Azerbaijan)

Assessment of the cenopulations of the possessing of high fodder qualities Vicia grandiflora Scop. species of the Legume family (Fabaceae) have been shown in the paper. Changes in the ontogenesis of V. grandiflora species were analyzed, an increase in the number of subsenil and senile individuals was observed, also young, old, transitional cenopopulations types were identified, but juvenile and immature individuals were not found in some phytocenoses. Transitional type of studied populations was found (∆=0,31-0,52; ὠ=0,54-0,63). Only evolving vitality was observed under assessment of the dynamics of development population and one-way irreversible changes were observed. The obtained results indicating a decrease in the number and underdevelopment of the cenosis, confirmed the danger of extinction of Vicia grandiflora species on the territory of the Steppe plateau.