The beet curly top virus-severe and beet curly top Iran virus are the main causal agents of curly top disease (CTD) in Iran. CTD has been described for a long time as one of the viral diseases of coriander that causes severe losses in seed production. An effective approach to managing plant viral diseases is to introduce resistant cultivars. Therefore, this study aimed to identify resistant coriander accessions for CTD. The study employed a completely randomized design with 10 replications to investigate the reaction of 10 coriander accessions, which were inoculated using agroinoculation. The inoculated plants were analyzed by measuring phenotypic, physiological and biochemical parameters, and virus accumulation. The results revealed that phenolic compounds, phenylalanine ammonia-lyase, polyphenol oxidase activity, guaiacol peroxidase, total chlorophyll content, and photosynthesis rate were elevated in resistant accessions to cope with virus inoculation. Resistant accessions exhibited normal growth and seed production similar to their mock-inoculated controls. Through principal component analysis and hierarchical cluster analysis, it was confirmed that accessions 111,230 and 230,160 were highly resistant to both viruses. These findings suggest that these accessions can be utilized in breeding programs to develop virus-resistant cultivars.

甜菜卷顶病毒-严重和甜菜卷顶伊朗病毒是伊朗卷顶病（CTD）的主要病原体。长期以来，CTD 被描述为香菜病毒性疾病之一，会导致种子产量严重损失。防治植物病毒病的一个有效方法是引进抗性品种。因此，本研究旨在鉴定对 CTD 具有抗性的香菜种质。该研究采用完全随机设计，进行 10 次重复，以研究 10 份使用农杆菌接种法接种的香菜材料的反应。通过测量表型、生理生化参数以及病毒积累来分析接种的植物。结果表明，为了应对病毒接种，抗性种质中的酚类化合物、苯丙氨酸解氨酶、多酚氧化酶活性、愈创木酚过氧化物酶、总叶绿素含量和光合速率均有所升高。抗性种质表现出与模拟接种对照相似的正常生长和种子产量。通过主成分分析和层次聚类分析，证实材料111,230和230,160对两种病毒均具有高度抗性。这些发现表明这些材料可用于育种计划以开发抗病毒品种。