Screening of Linseed (Linum usitatissium L.) Germplasm Under Epiphytotic Conditions Against Powdery Mildew and Wilt Diseases

A set of 122 linseed germplasm accessions was evaluated for powdery mildew and wilt diseases under epiphytotic conditions at the AICRP Linseed experimental block, College of Agriculture, Nagpur, during 2023–24. Among these 122 germplasm entries, only nine (23045, 24032, 24035, 24043, 24049, 24050, 24051, 25024, 27025) exhibited a highly resistant response to powdery mildew. Additionally, all 122 entries were evaluated in this trial under wilt sick plot conditions to assess their reaction to wilt disease, along with the checks. Among them, only one entry, namely 27042, showed a highly resistant response to wilt, whereas 12 entries (23054, 24031, 24036, 24041, 24042, 25021, 25023, 27021, 27025, 27030, 27033, and 27034) were found to be resistant. The remaining germplasm accessions were categorized as moderately susceptible, susceptible, or highly susceptible to powdery mildew and wilt diseases.