This study was conducted to evaluate the effects of the different levels of chicken dung on the
yield, and postharvest qualities of two genotypes of eggplant. The pot experiment was laid-out
in a split plot randomized complete block design with chicken dung levels as the main plot and
eggplant genotypes (Casino &Morena) as subplot. The levels of chicken dung were divided as T1
(zero), T2 (200 g/plant), T3 (400 g/plant), T4 (600 g/plant), T5 (800 g/plant), T6 (1.0 kg/ plant,
and T7 (2.0 kg/ plant). Casino genotype produced higher yield than Morena genotype under Visca
agro-climatic condition. The application of 400 grams of chicken dung per plant (T3) showed the
highest yield in both genotypes which were significantly different from the control (T1), T2, T6,
and T7. This simply means that a cost-effective application of chicken dung at 5 tons per hectare
is worth recommending for optimum eggplant production. Casino has a higher oxidationreduction
potential and ascorbic acid values but with lower electrical conductivity than Morena
hybrid. This means that Morena contains higher amount of electrolytes with better storability for
a longer period of time but with lesser vitamin C content than the Casino genotypes. Ascorbic
acid content and electrical conductivity were enhanced by the application of chicken dung which
declined beyond 800 grams per plant or at an application of 10 tons per hectare particularly with
Casino hybrid for ascorbic acid and Morena hybrid for electrical conductivity. All these results
would indicate the importance of organic fertilizer application to attain highest yield with best
postharvest qualities of eggplant.