In vitro Screening of Resistant Potato Clones to Late Blight with Crude Phytophthora infestans Toxin Identification of two Fusarium- isolates and their crude toxin allelopathic effect on Cucumis melo seedlings. Response of Gangyou725 to the toxin of four rice blast fungus Magnaporthe oryzae physiological races RESPONSE OF BARLEY ANTHER in vitro CULTURE FROM DIFFERENT GENOTYPES TO CRUDE TOXIN OF Fusarium graminearum Effects of Fusarium graminearum Crude Toxin on MDA Contents and SOD and PAL Activities in the Seedlings of Different Wheat Varieties Conditions of producing toxin by soybean leaf spot fungus Aristastoma sp. Optimization of Culturing Conditions for Toxin Production by Sclerotium cepivorum Berk. of Garlic Optimization of Culturing Conditions for Toxin Production by Sclerotium cepivorum Berk. of Garlic In vitro Selection of Resistant Somaclonal Variation of‘Gailiang’Garlic to Violet Leaf Spot Study on in vitro selection of Pogostemon cablin resistant to bacterial wilt