Effect of pre-harvest foliar application of calcium on post-harvest life of guava fruits. The selected plants were pre-harvest foliar sprayed with calcium nitrate with 0.5 %, 1% and 1.5% and calcium chloride 1%, 1.5% and 2% concentration solution at colour break stage (15 days before harvest) of fruit during last week of November. Calcium nitrate (1.5%) treatment was found superior over all treatments. It found minimum fruits physiological loss in weight, fruit decay, colour changes, while maximum TSS, titratable acidity, ascorbic acid, reducing and non-reducing sugar, total sugars and pectin contents in 0, 2nd, 4th, 6th, 8th & 10th day of storage. They also found less incidence of Rhizopus as post-harvest pathogen and maximum sensory rating at ambient storage condition.