Role of Biochemical Traits on Coffee for Drought: A Review Article
Wubishet Tamirat, Berihu Mengs
Plants regulate drought by using several morphological, physiological and biochemical mechanisms for control water loss and enhance water uptake. It produce key protective and structural metabolites like sugars, amino acids, polyols, amides, secondary metabolites under drought conditions. Drought tolerant coffee genotype has higher in biochemical composition: free proline, total protein content, soluble sugars, epicuticular wax, nitrate reductase activity and glycine-betaine. Hence, accumulations of these biochemicals are considered as adaptive mechanisms in drought-tolerant coffee genotypes. In general, future research direction should be focused on biochemical tolerance mechanisms of coffee to drought.