CARACTERIZAREA POPULAŢIILOR CONSANGVINE LA STEJARUL PEDUNCULAT (Quercus robur L.) DUPĂ TERMENELE DE ÎNFRUNZIRE

Petru CUZA Catedra Ecologie, Botanică şi Silvicultură

Rezumat

Features of blooming of leaves at sapling an oak in several consanguine populations are investigated. It is revealed, that cool spring weather conditions promote fast blooming of leaves at the majority sapling. In rather warm weather conditions, saplings in the spring are established and won’t be completely prepared in time for blooming leaves. In this case part of sapling is blooming with leaves, and their other part remains in a stage of time rest. Probably, the revealing of polymorphism of an oak characterized by the blooming of leaves provides the adaptive superiority of populations in unstable weather conditions.