EFFECT OF CLIMATE CHANGE ON THE EVOLUTION OF PHENOLOGICAL STAGES OF DATE PALM (Phoenix dactylifera L.) IN ZIBAN OASIS. BISKRA ALGERIA
N. DEGHICHE-DIAB *
Scientific and Technical Research Centre for Arid Areas (CRSTRA); Algeria and Laboratory of Ecosystem Diversity and Dynamics of Agricultural Production Systems in Arid Zones, University of Mohammed Khaider, Biskra, Algeria.
T. DEGHICHE
Laboratory of Ecosystem Diversity and Dynamics of Agricultural Production Systems in Arid Zones, University of Mohammed Khaider, Biskra, Algeria.
*Author to whom correspondence should be addressed.
Abstract
Date palm (Phoenix dactylifera L.) is one of the oldest fruit crops grown in the arid regions, ten palm trees of both sexes male (Dokkar) and female (Deglet Nour) where choosing at Experimental Farm of Technical Institut for Saharan Agriculture Development (ITDAS) Biskra. During 2005 for survey, the phenological stages of date palm in relation of climate change were studied. The results obtained show that the phenological stages of the culture and times of occurrences are favored by the climatic conditions of the current year (temperature, precipitation, humidity and winds), each stage requires sum of temperatures favoring its outbreak.
Keywords: Climate change, phenological stages, datte palm, qualitative and quantitative production