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Academic literature on the topic 'Plantes des régions arides – Tunisie (sud)'
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Journal articles on the topic "Plantes des régions arides – Tunisie (sud)"
Dridi, Bouthaina Al Mohandes, Mohamed Loumerem, Samira lbn Maaouia Houimli, Naouel Jabbes, and Samir Tlahig. "Caractérisation phéno-morphologique de quelques lignées de fève (Vicia faba L.) sélectionnées et adaptées aux conditions de culture dans les régions arides en Tunisie." Afrika Focus 24, no. 1 (February 25, 2011): 71–94. http://dx.doi.org/10.1163/2031356x-02401007.
Full textLoumerem, Mohamed, Patrick Van Damme, Touhami Kourchani, Dirk Reheul, and Tillo Behaeghe. "Etudes des composantes du rendement et la qualité nutritionnelle du fourrage de quelques lignées de mil Pennisetum glaucum (L.) R. Br. des zones arides en Tunisie." Afrika Focus 29, no. 1 (February 5, 2016). http://dx.doi.org/10.21825/af.v29i1.4819.
Full textDissertations / Theses on the topic "Plantes des régions arides – Tunisie (sud)"
Monroy, Ata Arcadio. "Installation de plantes pérennes de la zone aride soumises à des contraintes hydriques contrôlées et à des coupes." Montpellier 2, 1989. http://www.theses.fr/1989MON20025.
Full textJauffret, Sandrine. "Validation et comparaison de divers indicateurs des changements à long term dans les écosystèmes méditerranéens arides : application au suivi de la désertification dans le Sud tunisien." Aix-Marseille 3, 2001. http://www.theses.fr/2001AIX30066.
Full textAs many rangelands surrounding the Mediterranean Basin, the Tunisian arid zone, characterised by scattered steppic vegetation, is commonly viewed as degraded landscapes. In Arid Mediterranean regions, vegetation dynamics is indeed affected by hunian and non-human disturbances and stresses which induce desertification processes. In this context, the objectives of this research were to identify and validate various indicators of long term changes to provide information useful for the management of arid lands. The study is focussed on the understanding of 1) the structure and functioning of ecosystems and 2) the changes that occur in space and time in response to degradation. The ecological indicators allow us to describe different organisation levels from species to the ecosystem and the landscape. The diachronic comparison of vegetation maps of 1975 and 2000 allow a more complete diagnosis about the evolution of ecosystems and landscapes over the last three decades. .
Chaieb, Mohamed. "Influence des réserves hydriques du sol sur le comportement comparé de quelques espèces végétales de la zone aride tunisienne." Montpellier 2, 1989. http://www.theses.fr/1989MON20126.
Full textOurcival, Jean-Marc. "Réponses de deux chaméphytes de la Tunisie présaharienne à différentes contraintes et perturbations." Montpellier 2, 1992. http://www.theses.fr/1992MON20183.
Full textSahli, Ramla. "Etude phytochimique de quelques plantes extrêmophiles tunisiennes et exploration de leurs activités biologiques." Thesis, Lille 2, 2017. http://www.theses.fr/2017LIL2S016/document.
Full textResearch strategies of active natural products include ecological approaches. Extremophile plants, and in particular, halophytes and xerophytes, salt and drought-resistant plants, are a case in point. As they develop an arsenal of adaptation responses, including a powerful antioxidant system, they prove to be a promising source of biomolecules, especially in phenolic compounds. In this study, an assessment of biological activities was carried out on eight Tunisian halophyte and xerophyte plants that would offer new applications in public health-care, as well as in agriculture. Limonium virgatum (Willd.) Fourr. (Plumbaginaceae), a halophyte plant, showed interesting antioxidant and antibacterial activities in accordance to a high polyphenol content and to the presence of phenylpropanoides, respectively. Cirsium scabrum (Poir.) Bonnet & Barratte (Asteraceae), a xerophyte plant, revealed a cytotoxic potential involving cycloartane-type triterpenes, and a promising activity against Dermabacter hominis strains which is linked to the presence of glycosylated flavones. Juncus maritimus Lam. (Juncaceae), a halophyte plant, should be referred to a source of phenanthrene derivativeswith original biological activities. Juncunol showed a high activity against an amoxicillin-resistant strain of Streptococcus pyogenes. Effusol was highly active against the wheat pathogen (Zymoseptoria tritici), for which high salinity conditions would stimulate its activity in the rhizomes of the plant. Most interestingly, dehydrojuncusol, has been introduced as a novel inhibitor of hepatitis C virus replication that is effective against resistant mutants for which some treatments available on the market became ineffective