Species of the genus Khaya produce some of Africa's most valuable timber. For two centuries, these species have all been traded as "African mahogany". On the African continent, four different but morphologically similar species are now recognised: Khaya anthotheca, K. grandifoliola, K. ivorensis...

This article presents research areas on genetic improvement and silvicultural practices for maritime pine that includes resistance to water stress. A major component to these areas is the widening of the range of environments for evaluating genetic materials to cover the diversity of possible...

Description of the subject: This article is interested in the knowledge of the potentialities of adaptation of Pistacia atlantica in the water stress. Objective: This study aims at the evaluation of the effect of water stress on the behavior of Atlas pistachio (Pistacia atlantica Desf.) seedlings...

In the course of a taxonomic revision of the genus Pyrostria Comm. ex Juss. (Rubiaceae, Vanguerieae) in Madagascar, we describe five new species endemic from the Island: Pyrostria ambohitantelensis Atalahy, Rakotonas. & Razafim., Pyrostria ambrensis Atalahy, Rakotonas. & Razafim., Pyrostria ...

This study aims to identify the variability in response to the effects of shade and water stress on the morpho-physiological and anatomical behavior of cork oak seedlings (Quercus suber L.) originated from two different eco-geographical zones. The first population, Kef Rend (KR) is native from...

The oaks of Sologne Bourbonnaise, France, undergo recent decay. This decay was accounted to the annual water constraints such as excess water in winter and drought in late spring. This paper discusses how the Withered and Archi tools can help managers in their decision making.

Objective: Climatic factors influence tree transpiration. The objective of this research is to measure the transpiration of different tree species along a climatic gradient in agroforestry parklands and to investigate its potential impact on crops in order to formulate agroforestry parklands...

Knowledge about urban tree transpiration is necessary for proper plantation management. However, it is still insufficiently documented. Granier's method (1985), using the Thermal Dissipation Probe (TDP) to measure sap flow, is one of the most widespread techniques. However, its use is not optimal...

The systematics of Quercus faginea Lam. (s.l.) (Fagaceae) remains obscure, as it tends to crossbreed with other species and show signs of polymorphism. Four subspecies were identified and currently recognized in the Iberian Peninsula and Morocco. However, the literature to date does not allow the...

Trees with tolerance to arid and semi-arid conditions are needed to promote Tunisian dryland farming and combat desertification. Jatropha (Jatropha curcas L.) native from Central America is known to have potential to meet this objective. Three populations of Jatropha have been assessed under...