نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجـوی سابـق کارشناسـی ارشـد دانشـگاه آزاد اسـلامی، واحد ورامیـن-پیشـوا، دانشکـده کشـاورزی، گـروه بیماریشناسی گیاهی، ورامین، ایران
2 گروه بیماریشناسی گیاهی،دانشگاه آزاد اسلامی، واحـد ورامیـن- پیشوا، دانشکـده کشاورزی، ورامین، ایران
3 مربی، مرکز تحقیقات کشاورزی و منابع طبیعی گلستان، گرگان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
To evaluate resistance of wheat advanced and elite lines to fusarium head blight (Fusarium graminearum), 61 genotypes obtinedfrom Cereal Research Department of Seed and Plant Improvement Institute were grown at agricultural research field of Agricultural and Natural Resources Reserch Center of Gorgan in 2012 using a randomized complete block design with three replications. Inoculums of the pathogen was increased on wheat straw in laboratory and a mixture suspension of spores of five isolates were sprayed on plants at two growth stages of heading and anthesis.After development of disease in field, disease incidence, disease severity and disease index were assessed for each line. Based on the results, none of the lines were immune or resistant, but lines ARWYT-N-90-2, ERWYT-N-90-20 and ERWYT-N-90-4 with lower disease index exhibited an acceptable level of resistance.
کلیدواژهها [English]