INDIVIDUAL DEVELOPMENT OF Nepeta bucharica LIPSK. (Lamiaceae) UNDER DIFFERENT HABITAT CONDITIONS
A. CHERYOMUSHKINA VERA
Central Siberian Botanical Garden, SB, RAS, 630090 Novosibirsk, Zolotodolinskaya St., 101, Russia
ASTASHENKOV ALEXEY YU *
Central Siberian Botanical Garden, SB, RAS, 630090 Novosibirsk, Zolotodolinskaya St., 101, Russia
SAIDOV DOVUD
Institute of Botany, Plant Physiology and Genetics, Academy of Sciences of the Republic of Tajikistan, Tajikistan
*Author to whom correspondence should be addressed.
Abstract
This paper presents the results of study of ontogenesis and structural organization of Nepeta bucharica (Lipsk.) individuals. It has been established that depending on the habitat conditions plants form two ontobiomorphs: loosely bushy and densely bushy. A functional-zonal series of monocarpic shoots of two ontobiomorphs is described. The change in biomorph is connected with different length and extension of the lower zone of inhibition. Plants in ontogenesis undergo the phases sequentially: primary shoot→axis→primary bush. Duration of the axis phase provides survival of young plants in unfavorable weather conditions.
Keywords: Nepeta bucharica, ontogenesis, morphological adaptation