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Journal of Crop Protection، جلد ۱۱، شماره ۱، صفحات ۲۹-۳۷
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عنوان انگلیسی Evaluation of some cucurbit genotypes for resistance to downy mildew based on AUDPC
چکیده انگلیسی مقاله Downy mildew is one of the most important diseases of cucurbits in the world and Iran. The development of the disease was investigated in a commercial variety (Sakata® F1 Hybrid Saso), three hybrids and eight pure lines of cucumber, four pure squash lines, and one commercial cultivar of watermelon (Sakata® F1 Charleston Gray 243) in two consecutive years (2017 and 2018 spring and summer) at the experimental field of the University of Guilan, Iran to identify the sources of resistance. Plants were regularly inspected until the downy mildew symptoms appeared. The disease was measured using standard scale and Image J software at five stages in the plant growing season. Comparison of disease progress curves, final severity of the disease, and area under the disease progress curve (AUDPC) showed that cucumber B10 and A12 pure lines were the most susceptible and resistant in both years, respectively. None of the squash lines were infected in the first year, but in the second year, two lines showed the disease symptoms, and the severity of the disease in these lines was close to each other. The commercial cultivar of watermelon was not infected in both years.
کلیدواژه‌های انگلیسی مقاله disease incidence, disease severity, growth rate, Pseudoperonospora cubensis
نویسندگان مقاله | Akram Zakeri
Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.


| Sedigheh Mousanejad
Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.


| Jamal-Ali Olfati
Department of Horticulture, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.


| Akbar Khodaparast
Department of Plant Protection, Faculty of Agricultural Sciences, University of Guilan, Rasht, Iran.
نشانی اینترنتی http://jcp.modares.ac.ir/browse.php?a_code=A-10-49370-2&slc_lang=en&sid=3
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