Vol. 13 No. 7-20 (2022): Phytochemical analysis and pH of ethanol extracts of selected Plants as Bactericide against Bacterial blight of Soybean (Glycine max L.) caused by Pseudomonas syringae

Ethanol Extracts of Allium sativum, Diospyrous mespiliformis and Bactericide (Z-Force solution) were subjected to pH and phytochemical susceptibility testing against bacterial blight of soybeans caused by Pseudomonas syringae. Ethanol Extracts of Allium sativum showed the highest mean pH values at (10.5) followed by Ethanol Extracts of Diospyrous mespiliformis at (7.1) which are both alkaline, while Z-Force solution showed the least mean pH values at (5.1) which is acidic on the pH scale. Ethanol extracts of Allium sativum (Bulb) showed the presence (+) of Alkaloids, Flavonoids, Glycoside, Phenols, Terpenoids, Saponins, Steroids and Tannins while ethanol extracts of Diospyrous mespiliformis (Root, Leaf and Stem) showed the presence (+) of Alkaloids, Saponins, Steroids and Tannins. Among all the plant extracts used in this studies, highest percentage composition was recorded in Allium sativum (Bulb) (Alkaloids, 4.39%). We recommended that extracts with wider pH and permeability rate such as ethanol extracts of Allium sativum and Diospyrous mespilifor