Abstract
Coriander (Coriandrum sativum L.) is short and bushy crop of Apiaceae family with linalool as aromatic compound, this crop is used mainly as culinary spice in India. Majorly this coriander crop is associated with powdery mildew (Erysiphe polygoni DC) disease incidence, causes serious problem in many parts of India. Screening for resistant source through artificial inoculation method which was an eco-friendly approach conductedduring Rabi-2022 at Department of Biotechnology and Crop Improvement, University of Horticultural Sciences, Bagalkot. 35 coriander accessions where are collected from Karnataka, Gujarat and Andhra Pradesh. Percent Disease Index (PDI %) was calculated for four weeks after inoculation and scored based on disease rating scale. Among them only eight genotypes (Surabhi, Asian (A-5), Mrityunjaya, Kalaburagi local, Nutan, Caribe, Samarat Ashok and Pokhara) showed slower powdery mildew symptoms (PDI value of 3.9 to 5.4%) after third week of inoculation but in fourth week all the 35 genotypes falls under susceptible (PDI more then 100%) and highly susceptible category which represents the high virulence nature of powdery mildew strain.
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