Ecology and dynamics of blossoming of Syringa vulgaris L. in the conditions of an introduction

Zhakova S. N., Novoselova L. V., Lihachev S. V.

We studied details of flowering of 11 cultivars of Syringa vulgaris L. from the Perm State University Botanical Garden collection. The majority of cultivars have a morning type of flowering, flowers open till 8 o'clock. Flowers of 'Mme Abel Chatenay' and 'Paul Deschanel' open during all day. The results of multiple regression for 'Mme Jules Finger', 'Jules Simon', 'Frau Wilhelm Pfitzer', 'Mmе Lemoine', 'President Grevy' show the dependencies of flowering on the air temperature. 'Ludwig Spath' shows the dependency of flowering on air humidity. 'Katherine Havemeyer' – on temperature and humidity of air.

Keywords:ecological factors, biological features, Syringa vulgaris L., rhythmicity of blossoming