采用两套同核异质系，研究了不同核背景和不同孢质内源激素含量与玉米cms的关系。
The content of endogenous hormone and different Cytoplasmic of CMS were studied in different nuclear background.
玉米对弯孢菌叶斑病抗性在相同核基因、不同细胞质种质间无差异；
There were indifferent in resistance between maize germplasm with same nucleus genes and different cytoplasm background.
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