گزارش نهایی بررسی و شناسایی قارچهای عامل مرگ ومیر نهالهای درختان میوه هسته دار در خزانه های شاهرود

In order to identify the causal agents of stone fruit root diseases of Shahrood nurseries, 14 stone fruit nurseries were inspected regulary and diseased seedlings were collected. During the first year of investigation 50 fungal isolates were seprated from which 52 percent belonged to Fusarium. Other fungi such as Rhizoctonia, Pythium, Verticillium and Phytophhora formed 14, 12, 12 and 10 percent of isolates repectively...