EFFETS DES DIFFERENTS PRETRAITEMENTS SUR LA GERMINATION DES SEMENCES DE PIN D'ALEP (Pinus halepensis Mill.).

Aleppo pine (Pinus halepensis Mill.) is a species of great importance in the Algerian forests. This species is well adapted to dry summer conditions and is able to successfully colonize abandoned arable lands and burned areas. Apart from the high ecological value of natural stands, this species can create highly resilient forest covers in limiting dry conditions for both production and protection purposes. Experiment was conducted to determine the effect of different pretreatments on the germination of this species. The seeds were treated with three pretreatments (stratification, soaking in heat water and cold at 4°C). The results showed that stratification in moistened sand is the most appropriate treatment for seed germination of Aleppo pine. [ABSTRACT FROM AUTHOR]