甘蔗新品种(系)苗期白条病人工接种抗性鉴定与评价

傅华英, 张婷, 彭文静, 段瑶瑶, 许哲昕, 林艺华, 高三基

Identification of resistance to leaf scald in newly released sugarcane varieties at seedling stage by artificial inoculation

FU Hua-Ying, ZHANG Ting, PENG Wen-Jing, DUAN Yao-Yao, XU Zhe-Xin, LIN Yi-Hua, GAO San-Ji

表2 基于病情指数评价白条病抗性标准

Table 2 Criteria for evaluation of resistance to leaf scald based on disease index in sugarcane

抗性评价Resistance evaluation 病情指数分级Disease index (%) 高抗High resistant 病情指数 ≤ 5.0 Disease index ≤ 5.0 抗病Resistant 5.0 < 病情指数 ≤ 15.0 5.0 < Disease index ≤ 15.0 中抗Medium resistant 15.0 < 病情指数 ≤ 30.0 15.0 < Disease index ≤ 30.0 感病Susceptible 30.0 < 病情指数 ≤ 50.0 30.0 < Disease index ≤ 50.0 高感High susceptible 病情指数 > 50.0 Disease index > 50.0