“…The Silica gelpermanganate mixture was prepared in the laboratory by mixing 120 mL of 0.1 M KMnO 4 with 100 g of 16-mesh silica gel and drying the slurry at 110°C for 16 hours (Forsyth et al, 1967). Celite mixturepermanganate mixture was prepared by spreading 500g KMnO 4 on 375g of celite in a dish and adding 600 mL of water so that the permanganate would permeate the celite (Abeles et al, 1971). The analysis of data obtained in experiments was analyzed by Completely Randomized Design with three replications, by adopting the statistical procedures of Gomez and Gomez (1984).…”