Home – Home – Jornals – Contemporary Problems of Ecology 2011 number 6

Dwarf and typical trees of the population of Pinus silvestris L. in the Shirinskaya forest-steppe are compared in the variability of vegetative and generative organs, quantitative and qualitative characteristics of bearing. Special attention is paid to the investigation of the correlation structure of indices in the samples under comparison. It is established that the dwarf pines are characterized by high variability of the size and qualitative characteristics. In spite of the low reproductive potential of dwarf trees, some individuals are distinguished by regular and abundant bearing. They are characterized by the higher correlation of signs and tendency to gonochorism. In spite of the generally small contribution from dwarf individuals into the reproduction of pine population, it is quite corresponding to the small area occupied by rocks at the territory under study. Some individuals are distinguished by the high reproductive potential and can be used to solve the problems of selection.