Differences in distribution and community structure of plant-parasitic nematodes in pecan orchards between two ecoregions of Georgia
© 2021 Authors.
| Veröffentlicht in: | Journal of nematology. - 1969. - 53(2021) vom: 10. |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2021
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| Zugriff auf das übergeordnete Werk: | Journal of nematology |
| Schlagworte: | Journal Article Ecology Host-parasite relationship Multivariate analyses Non-metric multi-dimensional analyses |
| Zusammenfassung: | © 2021 Authors. In Georgia, pecans are commercially grown in the Piedmont and Coastal Plain ecoregions which are characterized by sandy-loam, sandy, and/or clay soils. If well-drained, these soils are suitable for pecan production, but the soil characteristics differ enough between ecoregions in which the plant-parasitic nematode (PPN) communities could differ substantially. We studied PPN communities in pecan orchards to evaluate the potential for ecoregion differences. In total, 11 genera (Helicotylenchus, Hemicycliophora, Heterodera, Hoplolaimus, Meloidogyne, Mesocriconema, Pratylenchus, Paratylenchus, Paratrichodorus, Tylenchorhynchs, Xiphenema) were recovered from pecan orchards in the Piedmont and Coastal Plain ecoregions. However, Non-Metric Multi-Dimensional Scaling ordination, Multi-Rank Permutation Procedure, and Indicator Species Analyses indicated that the pecan PPN communities strongly differed between ecoregions and that different genera were strongly associated with different ecoregions. For 9 of the 11 PPN genera, the maximum counts occurred in Coastal Plain locations, suggesting that the well-drained sandy soils of the Coastal Plain and comparatively ill-drained red clay soils of the Piedmont may be conducive and unfavorable for movement/reproduction of PPNs, respectively |
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| Beschreibung: | Date Revised 21.09.2021 published: Electronic-eCollection Citation Status PubMed-not-MEDLINE |
| ISSN: | 0022-300X |
| DOI: | 10.21307/jofnem-2021-075 |