Effect of different sulphate sources on the growth of Fusarium oxysporum f.sp. Cubense causing panamawilt of Banana

Effect of different sulphate sources on the growth of Fusarium oxysporum f.sp. cubense was studied by amending them in the Czapek Dox Agar medium. Growth of resistant strain of Fusarium oxysporum f.sp. cubense was found to be always higher than the sensitive one. Growth of sensitive and resistant isolates of Fusarium oxysporum f.sp. cubense was completely inhibited by iron sulphate, while zinc sulphate also slightly inhibited growth of both the isolates. Growth of sensitive and resistant isolates was maximum on calcium sulphate followed by magnesium sulphate, ammonium sulphate, barium sulphate and potassium sulphate.