The biological activity assay of the crude toxin showed that it could induce the characteristic symptom of rice sheath blight and inhibit the growth of rice radicle and make the seedling wilting.

对粗毒素进行生物活性检测，发现粗毒素在水稻叶片上能形成水稻纹枯病的典型症状，并可抑制水稻种子胚根的生长，致使水稻幼苗失绿萎蔫。

youdao

A field experiment was conducted to investigate the development rule of rice sheath blight in rice-duck-fish complex ecosystem. A model was established based on experiment data.

通过田间试验，对稻-鸭-鱼共栖生态系统中水稻纹枯病的发生规律进行了研究并建立了相应的数学模型。

youdao

The control effect of Wengmeiqing (validamycin) and its mixture on rice sheath blight disease was tested in field.

研究了纹霉清及其复配剂防治水稻纹枯病的防治效果。

youdao