Abstract: Acording to the determination of biochemistry,net photosynthetic rate and respiratory rate determined from flag leaves of hybrid F 1 in flowering stage were not influenced by K-type cytoplasm significamty,increased results were abtained from the interaction among some genotypes and Ae.Kotschyi cytoplasm.however,the expression of peroxidase isozymes and cytochromeoxidase isozymes determined from flag leaves in heading stage were influenced by K-type cytoplasm.and the cytochromeoxidase isozymes pattern sugge...