▎ 摘　　要

Researchers have shown that graphene oxide has a significant effect on plant and pathogen growth and development. To better understand the effect of graphene oxide on the resistance of Brassica napus L. to Sclerotinia sclerotiorum, Zhongshuang 11 was used to evaluate changes in the morphology and physiology after graphene oxide treatment. Detached leaf inoculation was used to detect S. sclerotiorum infection in rapeseed. The results indicated that treatment with a low concentration of graphene oxide had no significant effect on the growth of B. napus "Zhongshuang 11." Graphene oxide inhibited S. sclerotiorum in PDA medium. Treatment with 15 mg/L graphene oxide for 8-24 h in seeds and 8-16 h in seedlings suppressed S. sclerotiorum growth compared to the control samples. These results demonstrate that a low concentration of graphene oxide did not harm the growth of B. napus but did enhance its resistance to S. sclerotiorum.