Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors
The occurrence of selected plant-parasitic nematodes in the hemlock-hardwood-white pine, boreal forest, tundra, and oak-hickory associations in some northern states was compared. Helicotylenchus platyurus and Xiphinema americanum were not found in the boreal forest and tundra, and occurred infrequen...
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Journal of Nematology
1974
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ftfloridaojojs:oai:journals.flvc.org:article/64831 2024-10-13T14:11:11+00:00 Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors Norton, D. C. Hoffmann, J. K. 1974-04-15 application/pdf https://journals.flvc.org/jon/article/view/64831 eng eng Journal of Nematology https://journals.flvc.org/jon/article/view/64831/62499 https://journals.flvc.org/jon/article/view/64831 Journal of Nematology; Vol. 6, No. 2 (April 1974); 81-86 0022-300X info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1974 ftfloridaojojs 2024-09-23T09:57:07Z The occurrence of selected plant-parasitic nematodes in the hemlock-hardwood-white pine, boreal forest, tundra, and oak-hickory associations in some northern states was compared. Helicotylenchus platyurus and Xiphinema americanum were not found in the boreal forest and tundra, and occurred infrequently in the hemlock-hardwood-white pine areas. They were found frequently, however, in the oak-hickory forest of Iowa. It is questioned that vegetational differences among the areas account directly for the major differences in nematode occurrence. Presence and absence of nematodes and their numbers in the oak-hickory association were clustered by similarity coefficients by sites and correlated with soil pH, percentage organic matter, percentage sand-silt-clay, and field capacity. Of the soil factors measured, pH gave the strongest correlations with nematode numbers. Xiphinema chambersi was found only in soils with a pH between 4.5 and 6.4 while the largest numbers of H. platyurus, H. pseudorobustus, and X. americanum occurred in soil above pH 6.0. Key Words: forests, soil texture. Article in Journal/Newspaper Tundra Florida Online Journals (FloridaOJ) |
institution |
Open Polar |
collection |
Florida Online Journals (FloridaOJ) |
op_collection_id |
ftfloridaojojs |
language |
English |
description |
The occurrence of selected plant-parasitic nematodes in the hemlock-hardwood-white pine, boreal forest, tundra, and oak-hickory associations in some northern states was compared. Helicotylenchus platyurus and Xiphinema americanum were not found in the boreal forest and tundra, and occurred infrequently in the hemlock-hardwood-white pine areas. They were found frequently, however, in the oak-hickory forest of Iowa. It is questioned that vegetational differences among the areas account directly for the major differences in nematode occurrence. Presence and absence of nematodes and their numbers in the oak-hickory association were clustered by similarity coefficients by sites and correlated with soil pH, percentage organic matter, percentage sand-silt-clay, and field capacity. Of the soil factors measured, pH gave the strongest correlations with nematode numbers. Xiphinema chambersi was found only in soils with a pH between 4.5 and 6.4 while the largest numbers of H. platyurus, H. pseudorobustus, and X. americanum occurred in soil above pH 6.0. Key Words: forests, soil texture. |
format |
Article in Journal/Newspaper |
author |
Norton, D. C. Hoffmann, J. K. |
spellingShingle |
Norton, D. C. Hoffmann, J. K. Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors |
author_facet |
Norton, D. C. Hoffmann, J. K. |
author_sort |
Norton, D. C. |
title |
Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors |
title_short |
Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors |
title_full |
Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors |
title_fullStr |
Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors |
title_full_unstemmed |
Distribution of Selected Plant Parasitic Nematodes Relative to Vegetation and Edaphic Factors |
title_sort |
distribution of selected plant parasitic nematodes relative to vegetation and edaphic factors |
publisher |
Journal of Nematology |
publishDate |
1974 |
url |
https://journals.flvc.org/jon/article/view/64831 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Journal of Nematology; Vol. 6, No. 2 (April 1974); 81-86 0022-300X |
op_relation |
https://journals.flvc.org/jon/article/view/64831/62499 https://journals.flvc.org/jon/article/view/64831 |
_version_ |
1812818818108489728 |