Document Type : Research Paper


1 Departement of Biology, Faculty of Sciences of natural and life sciences, Kasdi Merbah University, Ouargla, Algeria

2 Departement of Agricultural Sciences, Faculty of natural an life sciences, University of Kasdi Merbah, Ouargla, Algeria

3 Departement of biology, faculty of natural and life sciences, university of Ouargla, Algeria

4 INRA Institut


The present work on the cultivation of winter vegetable species, which was carried out in the perimeters of development of the six communes of the region of Ouargla. We found that the biodiversity recorded is 16 species and 09 botanical families, during the study period. The most frequent botanical families are : Liliaceae (Allium cepa L.), Chenopodiaceae (Spinacia oleracea.), Asteraceae (Lactuca sativa) and Apiaceae (Daucus carota .). Many local cultivars have been identified; their identification is mainly based on: the origin of the seeds, the shape and color of the fruits. According to the average richness and diversity index calculations, we found that the stations of Sidi Khouiled and Hassi Ben Abdallah have a great diversity, unlike Rouissat and Ouargla where the diversity is low. The local diversity seems to be threatened, this is due to several causes among others the non-reasoned selection of local cultivars and the introduction of hybrid seeds which allows us to validate the first hypothesis that says (the development projects have favored the introduction of many new vegetable species, not traditionally cultivated in the areas and have favored the use of hybrid varieties, with high production potential. This policy induces a genetic erosion, especially for local cultivars) and to reject the second hypothesis that says (the development perimeters participate in the preservation of local cultivars, which ensures their sustainability in the medium and long term).


Main Subjects

[1]     ALLAM A., 2015- Etude de la diversité biologique des plants cultivées des palmeraiers de la région du haut oued Righ, PhD thesis, university of Ouargla, pp: 36-40 
[2]     BARBAULT R., 1981- Ecologie des populations et des peuplements des théories aux faits. Ed. Masson, Paris, 200p.
[3]     BEN CHEIKH A and BOUSMAHA N., 2016- Agrarian diagnosis of the ancient perimeter of Hassi Ben Abdallah and possibilities of improvement 3P
[4]     BOUAMMAR B., 2010- Le développement agricole dans les régions sahariennes -étude de cas de la région de Ouargla et de la région de Biskra, thèse de doctorat, université de Ouargla, pp: 34.
[5]     BOUZAHER A., 1990. Technical note: Creation of oases in Algeria. Revue Options méditerranéennes, CIHEAM, Série A, N° 11, pp 325-328.
[6]     CHRISTIAN DUPRAZ, 2006. Between agronomy and ecology: towards the management of cultivated ecosystems. INRA, Unité SYSTEM (Systèmes de Culture Tropicaux et Méditerranéens). 73-89p
[7]     DIRECTION DES SERVICES AGRICOLES DE LA WILAYA DE OUARGLA (DSA), 2016- agricultural statistics service.
[8]     DIRECTION DES SERVICES AGRICOLES DE LA WILAYA DE OUARGLA (DSA), 2015- agricultural statistics service.
[9]     GOUNOT M., 1969- Methods of quantitative study of vegetation. Ed: MASSON et Cie, PARIS. 310 p.
[10]  KASSAH A., 1994. Specialized course: Rapid diagnosis and development strategy in oasis environment - Comparative study of oases in the Maghreb and in the world. CRDA Tozeur Tunisia and CRSTRA Algeria. Report, 28 p
[11]  RAMADE F., 1984- Eléments d'écologie- Ecologie fondamentale. Ed. Mc Graw-Hill, Paris, 397 p.