Vol. 12, Issue 7 (2023)

Creating resistant agricultural disease-resistant cultivars is the most efficient way to control crop diseases. At the MES farm of the Acharya Narendra Deva University in Kumarganj, Ayodhya, Uttar Pradesh, 218 wheat genotypes were tested for resistance to spot blotch (Bipolaris sorokiniana) under natural epiphytotic circumstances on dates (15 December and 28 November) in 2021 and 2022. The Raj 4015 and Agra local wheat genotypes were used as a susceptibility check in the experiment's modified design. For both growing seasons, disease scoring was performed three times, seven days apart. The area under the Disease Progressive Curve (AUDPC) and disease severity were computed. Disease severity and AUDPC levels differed considerably between the genotypes examined for both growth seasons. A review of the data revealed that, of the 218 genotypes examined, none were determined to be immune (score 00-01). (Score 12–24) No genotypes were shown to be resistant. Ninety-four genotypes were discovered to be just moderately resistant to spot blotch. There are four genotypes pes susceptible spot blotch and 120 moderately susceptible individuals. This shows that regardless of the genotypes of wheat farmeseeding-resistantant varieties of wheat are beneficial for lowering yield loss due to spot blotch disease.