STUDIES ON THE PATHOGENIC POTENTIAL OF RACES IN SPHAEROTHECA FULIGINEA INFECTING CUCURBITS IN EASTERN UTTAR PRADESH, (INDIA)SANJAY GANGWAR AND KIRAN MISHRAAbstract Pathogenic potential of races in Sphaerotheca fuliginea on cucurbits were analysed in Eastern part of Uttar Pradesh (India). The study showed the occurrence of three races in S. fuliginea in this area. Race-3 was most wide spread and infected most of the cultivated cucurbits. Race-2 was restricted to green melon, Citrullus vulgaris var. fistulosus and Race-1 to sponge gourd, Luffa cylindrica. In addition Race-1 infected a few other cucurbits. L. cylendrica, C. vulgaris var. fistulous and C. sativus are proposed as differential hosts for identification of the three races in S. fuliginea isolates from cucurbits.
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