Population Structure of Pedunculate Oak
in the Middle Volga Region

I. A. Yakovlev

Mari State Technical University, pl. Lenina 3, Ioshkar-Ola, 424024 Russia

Received March 30, 1998

Abstract—Population structure of pedunculate oak (Quercus robur L.) in the Middle Volga region was studied
to provide the basis for organizing genetic reserves (sanctuaries) and preserving genetic resources of the spe-
cies. To analyze spatial population structure of oak forests, samples from different oak populations within the
region were characterized by 11 quantitative parameters of leaves. Successive application of multiple proce-
dures of data analysis made it possible to objectively differentiate populations into homogenous groups of indi-
viduals. Oak populations were subdivided into Volga forest and Transvolga forest–steppe groups, the latter
including two population subgroups growing in the forest–steppe zone: Mokshansko–Surskaya (mountain) and
Transvolga (flatland).

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