Oumelkheir Belkheiri

• PhD
• University of Sassari

An experiment on deficit irrigation of orange trees ( Citrus sinensis , L. Osbeck, cv. Meski Maltaise) with saline water (1.5 g l ‐1 ) was conducted in the arid region of Medenine, Tunisia. Four irrigation treatments were applied: full irrigation (FI), irrigated at 100% of the crop evapotranspiration; deficit irrigation (DI75) and (DI50), which rec...

An experiment on deficit irrigation (DI) was performed in a drip-irrigated orange orchard (cv. Meski Maltaise) during 2013 and 2014 in farm field situated in Médenine, Tunisia. Four irrigation treatments were applied: FI, which was irrigated at 100% of ETc for the whole season; DI75 and DI50, which received 25 and 50% less water than FI. These trea...

Field studies were conducted to examine the response of potato, carrot, fava bean, and pepper to irrigation regimes using saline water in a commercial farm. The irrigation regimes were full (FI100) and deficit (DI70) irrigated with levels of 100 and 70% of crop evapotranspiration (ETc) when the readily available water, 40% of total available water...

The effects of irrigation regimes with saline water on vegetable yields, soil salinity and water productivity were investigated over two years in southern Tunisia. Crops were drip irrigated with well waters (6 dS/m). Full (FI100) and deficit (DI70) irrigation based on soil water balance (SWB) were compared to farmer practices (FM). For both experim...

Arid regions of Maghreb (North Africa) suffer scarce water conditions and the erratic behaviour of rainfall events over brief intervals often produce short and intense floods events which converge into ephemeral wadi beds. The watershed of wadi Oum Zessar, in South-East Tunisia, is characterized by a rainfall rate of about 200 mm/year, overexploita...

Atriplex halimus L. is known in the Mediterranean basin and along the coastal areas of Sardinia for its adaptability to salinity, although less information is available on the resistance of this species to water stress in absence of salinity. The effect of water stress on growth and water utilisation was investigated in two Atriplex species: A. hal...

A demonstrative and participatory development project on desertification mitigation and rural development has been launched in Northern Africa under SMAP Programme (Short and Medium-term priority environmental Action Programme) financed by the European Union. The project, which title is Demonstration Project on Strategies to Combat Desertification...

Atriplex halimus is found in the Mediterranean Basin along the coastal areas of Sardinia, but few data are available on its adaptability to salinity. The effects of drought and salinity under controlled conditions on two clones of A. halimus, designated MOR2 and SOR4, originating from southern and northern Sardinia, respectively, were compared with...

Plants have had to cope with periodic, unpredictable environmental stresses during growth and development. Surviving such stresses over a long evolutionary scale led plants to acquire mechanisms allowing them to sensitively perceive stresses and regulate their physiology accordingly. In the arid and semi arid regions of the world, shrubs surviving...