ONTOGENETIC STRUCTURE AND STATE ESTIMATION OF TULIPA BORSZCZOWII (LILIACEAE) COENOPOPULATIONS IN UZBEKISTAN
The current state of coenopopulations of the endangered species Tulipa borszczowii Regel in Uzbekistan is studied. On the base of demographic indicators as well as several characteristics at the levels of organisms and populations the state of the species coenopopulations was estimated. Plant communities of tall perennials and shrubs growing on sandy loam and sandy soils were revealed to be the ecological and phytocenotic optimum for T. borszczowii.