Gorgan University Of Agricultural Sciences and Natural Resources Journal of Plant Production Research 2322-2050 19 4 2013 03 12 Application of culture filtrates of Ophiostoma novo-ulmi and O. ulmi under in vitro condition as a bioassay to screen for disease tolerant Ulmus parvifolia and Ulmus campestris Application of culture filtrates of Ophiostoma novo-ulmi and O. ulmi under in vitro condition as a bioassay to screen for disease tolerant Ulmus parvifolia and Ulmus campestris 117 136 1064 FA Journal Article 2013 03 12 https://jopp.gau.ac.ir/article_1064_6eeaa8f73d41bc5168572d6a9f18c47a.pdf