**Figure 4.** *Overall drought stress response in crop species.*

trichrome production on leaves is an attribute that enables the plant to tolerate water deficits in dry environments [46]. There is an increase in rate of light reflection in the leaf reducing the leaf temperature as well as trichomes provide additional layer of resistance to the water loss thereby reducing the rate of water loss through transpiration [47]. Changes in root system-size, density, length, proliferation, expansion and growth rate, constitute the preliminary strategy for drought-tolerant plants to cope against drought [48]. Osmotic adjustment, antioxidant defense mechanism, metabolic and biochemical dynamics of stomatal closure, solute accumulation and increment in root shoot ratio are other common strategies that aid to drought stress resilience [49].
