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The Impact of Drought and Vascular-Inhabiting Pathogen Invasion inPinus taedaHealth
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Personen und Körperschaften: | , , |
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Titel: |
The Impact of Drought and Vascular-Inhabiting Pathogen Invasion inPinus taedaHealth |
In: | International Journal of Forestry Research, 2018, 2018, S. 1-9 |
veröffentlicht: |
Hindawi Limited
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Umfang: | 1-9 |
ISSN: |
1687-9368 1687-9376 |
DOI: | 10.1155/2018/1249140 |
Zusammenfassung: | <jats:p>The complex interaction of various biotic and abiotic factors may put the overall stand health of<jats:italic>Pinus</jats:italic>spp. at risk. A study was designed to determine the combined impact of drought and vascular-inhabiting fungi (<jats:italic>Leptographium terebrantis</jats:italic>and<jats:italic>Grosmannia huntii</jats:italic>) in<jats:italic>Pinus taeda</jats:italic>. Seedlings from two<jats:italic>P. taeda</jats:italic>families were planted and watering treatments, (i) normal watering, (ii) moderate drought, and (iii) severe drought, were applied. One month following the initiation of watering treatments, seedling stems were artificially inoculated with<jats:italic>L. terebrantis</jats:italic>and<jats:italic>G. huntii</jats:italic>. Drought and fungal interaction significantly affected lesion length/seedling height, occlusion length/seedling height, and seedling fine root biomass.<jats:italic>Leptographium terebrantis</jats:italic>was more pathogenic under moderate and severe drought than normal watering condition, whereas the pathogenicity of<jats:italic>G. huntii</jats:italic>remains unaltered. The susceptibility of the families to vascular-inhabiting fungi remained the same under different watering treatments. Drought and specific vascular-inhabiting fungi may negatively impact<jats:italic>P. taeda</jats:italic>stand health.</jats:p> |
Format: | E-Article |
Quelle: | Hindawi Limited (CrossRef) |
Sprache: | Englisch |