First report of an important sheat nematode, Hemicycliophora poranga, associated with sugar beet (Beta vulgaris L.) in Vietnam

Nguyen, T. D.; Trinh, Q. P.

doi:10.2478/helm-2021-0033

Abstract

Several species of the sheat nematodes, Hemicycliophora spp., have been known to cause significant damage to agricultural crops, including Hemicycliophora arenaria, H. conida, H. parvana, H. poranga, H. similis, and H. typica. Remarkably, our study reported on the presence of H. poranga for the first time in Vietnam. This species was found on 83.33% of the total samples with an average density of 270 individuals/100ml of soil (positive samples). In this study, the Vietnamese population of H. poranga was characterized based on both morphology and molecular characterization of D2-D3 expansion segment of 28S rRNA sequence. Besides, a molecular phylogenetic tree of the genus Hemicycliophora was also provided.

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First report of an important sheat nematode, Hemicycliophora poranga, associated with sugar beet (Beta vulgaris L.) in Vietnam

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