Balinsoy, Sheena P. , Ganzon, Lori Ann C. , Lorilla, Princess Marie C. (January 2003)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
This study was conducted to determine the antifungal effects of aloe vera, ampalaya, calamansi, malunggay, and tomato extracts on Fusarium Wilt fungi (Fusarium oxysporum), with distilled water ( as negative control) , and Benlate (as positive control) for extra comparison. To obtain the plan extracts, twenty grams of each species were separately added to 100 mL of water and were then macerated using a blender. The results were measured by measuring the diameter of inhibition after an incubation period of 24 hours at room temperature. The results showed that among the extracts tested, calamansi and tomato are the most effective antifungal agents against Fusarium oxysporum with mean diameters of zones of inhibition of 21 mm and 19.33 mm respectively. Aloe vera also has anti fungal potency against Fusarium oxysporum but its not as effective as calamansi or tomato. Ampalaya and malunggay did not exhibit anti-fungal properties on the test organism. One-Way Analysis of Variance (0.05) and Scheffe Test showed that there is a significant difference among the anti-fungal properties of various local plant extracts on Fusarium oxysporum based on their mean diameters of zones of inhibition. Anti-fungal properties decreased in the order: Benlate > calamansi > Tomato > Aloe vera > Ampalaya = Malunggay = Distilled water.