Wheat Genotype Evaluation for Spot Blotch Disease Resistance: Unveiling Resilient Varieties

Spot blotch, caused by Bipolaris sorokiniana (Sacc.) Shoemaker is a major disease of wheat (Triticum aestivum L.), in all the six agro climatic zones India. Estimation losses due to this vary from location location, diverse environmental conditions. The use resistant cultivars most effective, long-lasting, cost-effective, and environmentally friendly technique for sustainable control. experiment was conducted at Crop Research Centre, Chirodi farm Sardar Vallabhbhai Patel University Agriculture Technology, Meerut (U.P.). Among tested varieties, index AUDPC values varied significantly both years’ data viz. 2021-22 2022-23. In 32 varieties were screened against B. under artificial epiphytotic conditions field. Each variety sown two row three-meter length with three replications, line susceptible check RAJ 4015 every ten genotypes interval. found be resistant, eleven moderately fourteen five susceptible, none immune highly spot blotch disease. Area Under Disease Progress Curve (AUDPC) calculated thirty- on basis index. varies 212.90 1143.9 198.80 1144.90 during 2022-23 data. pooled mean, 205.85 1144.40, showing fast progress genotypes. It observed that different expressed type response sorokiniana.