6[6]Chawla HS,Wenzel G. In vitro selection of barley and wheat for resistance against Helminthosporium sativum [J]. Theor Appl Genet,1987,74: 841 ~ 845.
7[7]Hartman-Mitchell C,Knous TR, Mecoy TJ. Toxic components produced by Fusarium oxysporum f. sp. Medicaginis and their use in alfalfa cell culture selection techniques[J]. Phytopathology,1983,73:829.