Screening of Potato Varieties/Entries Against Common Scab (Streptomyces scabiei) of Potato

Common scab of potato, caused by Streptomyces scabiei (Thaxter) Waksman & Henriki, a significant and increasingly prevalent disease in North Gujarat, is a major threat to potato cultivation in the region. The field experiment was carried out at the Potato Research Station, S. D. Agricultural University, Deesa, Gujarat in two successive cropping seasons (2021-22 and 2022-23) to screen the potato varieties/entries against common scab (Streptomyces scabiei) of potato. Out of 30 varieties/entries screened against common scab, non was found free from disease but two varieties namely, Kufri Sindhuri and Kufri Gaurav were found moderately resistant, four varieties/entries (K. Chipsona-3, AICRP-PH-3, K. Sukhyati and K. Lalit) were found as moderately susceptible and twenty-one varieties/entries were found as susceptible while three varieties/entries were found as highly susceptible.