植物保护 - 2026 进行中

科目: 植物保护
级别: XII
类别: 大学生
测试题目: 英语
问题示例: A fungicide-resistant pathogen population shows a reduced sensitivity to several chemically unrelated fungicides that inhibit the same target pathway. Which interpretation best accounts for this pattern? Multiple independent target-site mutations with no shared mechanism, Cross-resistance caused by a resistance mechanism affecting a common biochemical target, Resistance caused exclusively by reduced spray coverage, Reversion of the pathogen to its original sensitive phenotype