Abstract

                                The genotype of coconut East Coast Tall was studiea tor as torrance of drought through the physiological parameters by using different drought management practices. During the time of stress (April, May, June) the treatment like coconut husk burial in the basin had significant difference by higher stomatal resistance (rs) low transpiration rate (Tr). This was supported by Lower Stomatal Index. Further the leaf samples registered higher CSI, higher NR activity, with higher content of protein and total sugars. The same trend of results were observed in proline, relative water content and epicuticular wax content.

Key words : Coconut, Rainfed, Stress, Physiological parameters, Biochemical constituents.