MORPHOLOGICAL AND PHYSIOLOGICAL RESPONSE OF NAKED AND COVERED BARLEY GENOTYPES TO WATER STRES IN EASTERN ALGERIDJELELARAHEM DJELEL1, BELAHCNE NABIHA, ZENATI NOUREDDINE AND FELLAH IMEN
Drought stress is the major limiting factor in agriculture production worldwide and is the main problem limited barley production in Algeria. In order to elucidate the impact of Water stress on morphophysiological traits of barley genotypes, two genotypes of barley âcoveredâ and ânakedâ were subjected to two treatments, The first group of plants are regularly irrigated, the second group, At the 5rd leaf stage treated plants are subjected to water stress by stop irrigation for 15 days. Results of Analyze de la variance showed significant differences among varieties for all characters exception of Leaf Area, Vegetative Dry Matter and chlorophyll pigments .Water stress caused decrease of Chlorophyll pigments and relative water content. Barley varieties differ notably in their response to water stress, Overall performance of covered barley cultivars was superior to naked barley cultivars under both water stress. Among covered barley genotypes, âSaidaâ and âEl fouaraâ cultivars were the most drought tolerant and naked barley cultivar was the most sensitive genotype to water stress.