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Protection of spruce seedlings against pine weevil attacks by treatment of seeds or seedlings with nicotinamide, nicotinic acid and jasmonic acid
KTH.
Dalarna University, School of Technology and Business Studies, Forest and Wood Technology.
KTH.
Dalarna University, School of Technology and Business Studies, Forest and Wood Technology.
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2016 (English)In: Forestry (London), ISSN 0015-752X, E-ISSN 1464-3626, Vol. 89, no 2, 127-135 p.Article in journal (Refereed) Published
Abstract [en]

Sustainable methods are required to protect newly planted tree seedlings from insect herbivore attack. To this end, here Norway spruce (Picea abies (L.) Karst.) seeds were treated with 2.5 mM nicotinamide (NIC), 2.5 mM nicotinic acid (NIA), 3 mM jasmonic acid (JA) or 0.2 mM 5-azacytidine (5-Aza), and 6-month-old seedlings grown from these seeds were planted at a reforestation area in central Sweden. Attack by pine weevils (Hylobius abietis) was reduced by 50 per cent by NIC treatment, 62.5 per cent by JA treatment and 25 per cent by 5-Aza treatment, when compared with seedlings grown from untreated seeds. Watering 18-month-old spruce seedlings with 2 mM NIC or 2 mM NIA did reduce attack during the first season in the field by 40 and 53 per cent, respectively, compared with untreated plants. Girdling was also reduced by the different treatments. Analysis of conifer seedlings treated with 5-Aza points at a possible involvement of epigenetic mechanisms in this defensive capacity. This is supported by a reduced level of DNA methylation in the needles of young spruce seedlings grown in a greenhouse from NIC-treated seeds. Seed treatment for seedling defense potentiation is simple, inexpensive and also a new approach for forestry with many potential applications.

Place, publisher, year, edition, pages
Oxford University Press, 2016. Vol. 89, no 2, 127-135 p.
Keyword [en]
Coniferophyta; Curculionidae; Hexapoda; Hylobius abietis; Picea; Picea abies
National Category
Forest Science
Research subject
Energy, Forests and Built Environments
Identifiers
URN: urn:nbn:se:du-19843DOI: 10.1093/forestry/cpv040ISI: 000370970000003OAI: oai:DiVA.org:du-19843DiVA: diva2:866030
Available from: 2015-10-30 Created: 2015-10-30 Last updated: 2016-05-16Bibliographically approved

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Publisher's full texthttp://forestry.oxfordjournals.org/content/early/2015/10/28/forestry.cpv040.abstract

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Lindström, AndersStattin, Eva
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf