The variation of quality parameters in high quality cultivar Zhengmai366 and 15 wheat varieties were studied, the effects of different environment and genotype on quality parameters were discussed. Some quality parameters and factors which are important to bread baking quality and dough rheological parameters were determined, which provided a theory basis for early generation selection in high quality wheat breeding. By using NCⅡdiallel cross F1 at two sites, the combining ability and heterosis of yield and...