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Outdoor performance of forest seedlings pre-cultivated under artificial lights: effects of the light spectra used for pre-cultivation on the future establishment and development
Dalarna University, School of Technology and Business Studies, Energy Technology.
Dalarna University, School of Technology and Business Studies, Forest and Wood Technology.
2015 (English)In: Rainforest challenges: Book of abstracts / [ed] Vladan Ivetić and Tatjana Ćirković‐Mitrović , 2015, 20-20 p.Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

Forest nurseries are essential for producing good quality seedlings, thus being a key element in the reforestation process. With increasing climate change awareness, nursery managers are looking for new tools that can help reduce the effects of their operations on the environment. The ZEPHYR project, funded by the European Commission under the Seventh Framework Programme (FP7), has the objective of finding new alternatives for nurseries by developing innovative zero-impact technologies for forest plant production. Due to their direct relationship to the energy consumption of the nurseries, one of the main elements addressed are the grow lights used for the pre-cultivation. New LED luminaires with a light spectrum tailored to the seedlings’ needs are being studied and compared against the traditional fluorescent lamps. Seedlings of Picea abies and Pinus sylvestris were grown under five different light spectra (one fluorescent and 4 LED) during 5 weeks with a photoperiod of 16 hours at 100 μmol∙m-2∙s-1 and 60% humidity. In order to evaluate if these seedlings were able cope with real field stress conditions, a forest field trial was also designed. The terrain chosen was a typical planting site in mid-Sweden after clear-cutting. Two vegetation periods after the outplanting, the seedlings that were pre-cultivated under the LED lamps have performed at least as well as those that were grown under fluorescent lights. These results show that there is a good  potential for lightning substitution in forestry nurseries.

Place, publisher, year, edition, pages
2015. 20-20 p.
Keyword [en]
forest regeneration materials, LED grow lights, nursery technologies, planted forest
National Category
Forest Science
Research subject
Energy, Forests and Built Environments
Identifiers
URN: urn:nbn:se:du-21082ISBN: 978‐86‐918861‐0‐3 (print)OAI: oai:DiVA.org:du-21082DiVA: diva2:905215
Conference
International Conference Reforestation Challenges, Belgrade, 03‐06 June 2015
Projects
Zephyr Project
Funder
EU, FP7, Seventh Framework Programme, 308313
Available from: 2016-02-22 Created: 2016-02-22 Last updated: 2016-02-22Bibliographically approved

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CiteExportLink to record
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