Three types of lesion of Drechslera sacchari responded three phenotypes of R S mechanism, which are conditioned by different sources of heredity.
眼斑病三种不同类型的病斑反映三种不同类型的抗感机制，受不同的遗传组成源的控制。
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The research status of Opogona sacchari were analyzed in the regards of biology, ecology, distribution range, harm symptoms, and its integrated control measures were also discussed.