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Seven isolates of Alternaria alternata were recover from diseased leaves and morphologically characterized. Among 17 germplasms Mridula, Arakta, Kabuli, and Kabuli canoor were found were found highly susceptible with a PDI ranging between 53.33 to 66.67 per cent, nine germplasms includes KRS, P13, P23, Yarcaud local, Bhagwa, Shirin anar, Super bhagwa, Kabuli yellow, and Muscat new showed susceptible reaction, Jyoti GKVR, P16 and Muscat germplasms found to be moderately resistant reaction against isolate Aa361. KRS, Mridula, Yercaud local, Muscat and Shirin anar germplasms showed moderately resistant reaction against Aa2514 remaining were showed susceptible to highly susceptible reaction. Germplsms viz., Kabuli, Arakta, Kabuli canoor shows susceptible reaction and remaining all shows resistant to moderately resistant reaction against isolate Aa356. In response to isolate Aa2427 seven germplasms shows susceptible reaction and remaining were moderately resistant except Kasuri shows resistant reaction. In response to isolates Aa2523and Aa1726 many germplasms showed susceptible to highly susceptible reaction only few showed moderately resistant reaction. On isolate Aa1728 only Muscat germplasms showed resistant and remaining were susceptible to highly susceptipble.

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