VEGETATIVE GROWING AND LONGEVITY OFAcacia raddianaIN ALGERIAN SAHARA

A HANNANI; A CHEHMA

A HANNANI Université KASDI MERBAH Ouargla. Laboratoire Bioresources Sahariennes: Préservation et Valorisation. Faculté des Sciences de la Nature et de la Vieet Sciences de la terre et de l’Univers (Algérie)
A CHEHMA VEGETATIVE GROWING AND LONGEVITY OFAcacia raddianaIN ALGERIAN SAHARA

Keywords: Acacia raddiana, Meguiden, morphological, circumference, phreatic

Abstract

This study aims to identify some of the morphological, properties, which helped Acacia raddianaof Fabaceae family to growing and reproducting in arid areas like Algerian Sahara.In order of this, we have identified the area named "Méguiden" of the department of Timimoun, for the selection of trees that were categorized into three sections of age depending on the measurement circumference of their trunks. The obtained results confirmed that the genus Acacia raddiana, adopt some strategies leading to effective use of water from the layer surrounding the securities and as well as; hairy leaves and inflorescences, and as well as the presence of long thorns. All these factors, this specie to be one of the most important phreatic plants, which can supply water, located in the depths of the soil.