IMPACT OF HYDRO-EDAPHIC STRESS ON ROOTING AND PRODUCTIVITY OF 'DEGLET NOOR' DATE PALM OF THE OUARGLA BASIN (NORTHERN ALGERIAN SAHARA)
The oasis of Ouargla basin endures a phenomenon of groundwater rise. This latter is responsible for the salinisation and formations of gypsum crusts which constitute in the whole of hydro-saline and mechanical stress for the date palm growth. The present work of research proposes a study of the effect of this stress on the rooting and productivity of Deglet Noor palm date. The results show that the hydro-edaphic environment is characterised by the variable levels of groundwaters and crusts. The rising level of this latter generates a limitation and deformation of root to the cultivar. It emerges that the elevation of hydro-saline and mechanical stress levels provoke a yield decrease. It seems that the hydro-edaphic environment becomes more stressful for date palms growth and productivity when we come nearer to the bottom of the Ouargla basin.
Daddi Bouhoun, M., Saker, M.L., Ould el Hadj, M.D. and Brinis, L. 2013. IMPACT OF HYDRO-EDAPHIC STRESS ON ROOTING AND PRODUCTIVITY OF 'DEGLET NOOR' DATE PALM OF THE OUARGLA BASIN (NORTHERN ALGERIAN SAHARA). Acta Hort. (ISHS) 994:93-97
groundwater rise, salinisation, yield, productivity