الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
مستخلص اThe hypothesis that abiotic stresses differs patterns of plants is now well established (Dawson et al., 2011) and it is predicted that this could become greatest global threat to biodiversity over the next few decades (Pereira et al., 2010). Plants are unable to escape the hazards of environment in which they grow because of their sessile habit. To cope with this, many plants undergo variation in one or more characters (morphological, anatomical, physiological and biochemical) in response to both abiotic (e.g. climate, weather, soil, water stress, mineral nutrient deficiency and geographical position) and biotic (e.g., grazing, human interference, harvesting) factors of the environment as an adjustment to resource availability. This adjustment to environment is generally referred as plasticity (Satarian et al., 2011). It was suggested that many plant species have inherent biochemical and physiological plasticity involving multiple processes which control and manage plant life. The potential spread of the plant is linked to site-specific micro-environment, whereby, it prefers flat valley bottoms with alluvial fills having high water availability or sand dunes with abundant calcium carbonate or the rocky places with scare water, despite the fact that it may be due to ontogenic programming of the plant as well (Bhat et al., 2016.