Morphological variability of generative shoots of Nepeta grandiflora M. Bieb. in natural conditions andat introduction

Interpopulation variability of Nepeta grandiflora M. Bieb. in the nature and in the conditions of an introduction based on complex of morphological fea- tures of generative shoots was studied. Assessment of investigational traits of generative shoot of N. grandiflora showed reducing the size of annual shoots altitude of growth in natural conditions, and introduction. The reproductive ef- fort and leaf-bearing have not always in positive correlative communication with productivity of shoots. It was detected that the weight traits of shoots have a high level of variability in all populations under various conditions of growth. The data obtained are of interest for understanding the mechanisms of adaptive reactions of introduced plants and may be used for introduction forecasting.

Nepeta grandiflora, population, introduction, generative shoot,morphological traits, variability, reproductive effort, leaf-bearing