Abstract: The effects of alien cytoplasms on the resistance to the major diseases of wheat,including stripe rust,leaf rust,stem rust,powdery mildew and scab etc.,werestudied,under both naturally infected and artificially inoculated conditions.Theresults indicated that the resistance of different allo-cytoplas

Key words: Allo-cytoplasm, The type of cytoplasm, The combination of nucleus and cytoplasm