Occurrence of Root-Knot Nematode (Meloidogyne spp.) on Peppers in Hainan, China, and M. enterolobii and M. incognita Resistance of Common Cultivars

文献类型： 外文期刊

第一作者： Long, Haibo

作者： Long, Haibo;Sun, Yanfang;Chen, Yuan;Pei, Yueling;Feng, Tuizi;Che, Haiyan;Long, Haibo

作者机构：

关键词： Meloidogyne enterolobii; occurrence; pepper; resistance; root-knot nematodes

期刊名称：PLANT DISEASE （ 影响因子：4.5； 五年影响因子：5.0 ）

ISSN： 0191-2917

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Root-knot nematodes (Meloidogyne spp.) are the most economically damaging group of plant-parasitic nematodes. They are considered to be a major constraint of pepper (Capsicum annuum L.) crops worldwide. In China, Hainan Island is the main producer of pepper, where the climatic conditions and cropping patterns are favorable for infection by Meloidogyne spp. In this study, we conducted a detailed investigation of the occurrence, severity, and population distribution of root-knot nematodes infesting pepper throughout Hainan Island. We also tested the level of resistance to M. enterolobii and M. incognita of the common pepper cultivars in Hainan. Our results showed that root-knot nematodes belonging to M. enterolobii, M. incognita, and M. javanica were found in Hainan, and the dominant population was M. enterolobii, which is the predominant species in the tropical area. Notably, all the pepper cultivars in this study were highly susceptible to M. enterolobii, which is probably a reason for its rapid spread throughout Hainan. The pepper cultivars exhibited different levels of resistance to M. incognita. This study promotes the comprehensive understanding of the root-knot nematode distribution and host resistance level of Meloidogyne in Hainan, which will guide the effective control of root-knot nematodes.

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