Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season
One-year-old Norway spruce ( Picea abies (L.) Karst.) seedlings were grown hydroponically in a growth chamber to investigate the effects of low and high nutrient availability (LN; 0.25 mM N and HN; 2.50 mM N) on growth, biomass allocation and chemical composition of needles, stem and roots during th...
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2004
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fthighwire:oai:open-archive.highwire.org:treephys:24/6/707 2023-05-15T17:44:45+02:00 Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season Kaakinen, Seija Jolkkonen, Annika Iivonen, Sari Vapaavuori, Elina 2004-06-01 00:00:00.0 text/html http://treephys.oxfordjournals.org/cgi/content/short/24/6/707 https://doi.org/10.1093/treephys/24.6.707 en eng Oxford University Press http://treephys.oxfordjournals.org/cgi/content/short/24/6/707 http://dx.doi.org/10.1093/treephys/24.6.707 Copyright (C) 2004, Oxford University Press Original Articles TEXT 2004 fthighwire https://doi.org/10.1093/treephys/24.6.707 2010-03-27T18:51:39Z One-year-old Norway spruce ( Picea abies (L.) Karst.) seedlings were grown hydroponically in a growth chamber to investigate the effects of low and high nutrient availability (LN; 0.25 mM N and HN; 2.50 mM N) on growth, biomass allocation and chemical composition of needles, stem and roots during the second growing season. Climatic conditions in the growth chamber simulated the mean growing season from May to early October in Flakaliden, northern Sweden. In the latter half of the growing season, biomass allocation changed in response to nutrient availability: increased root growth and decreased shoot growth led to higher root/shoot ratios in LN seedlings than in HN seedlings. At high nutrient availability, total biomass, especially stem biomass, increased, as did total nonstructural carbohydrate and nitrogen contents per seedling. Responses of stem chemistry to nutrient addition differed from those of adult trees of the same provenance. In HN seedlings, concentrations of α-cellulose, hemicellulose and lignin decreased in the secondary xylem. Our results illustrate the significance of retranslocation of stored nutrients to support new growth early in the season when root growth and nutrient uptake are still low. We conclude that nutrient availability alters allocation patterns, thereby influencing the success of 2-year-old Norway spruce seedlings at forest planting sites. Text Northern Sweden HighWire Press (Stanford University) Norway Tree Physiology 24 6 707 719 |
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HighWire Press (Stanford University) |
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English |
topic |
Original Articles |
spellingShingle |
Original Articles Kaakinen, Seija Jolkkonen, Annika Iivonen, Sari Vapaavuori, Elina Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season |
topic_facet |
Original Articles |
description |
One-year-old Norway spruce ( Picea abies (L.) Karst.) seedlings were grown hydroponically in a growth chamber to investigate the effects of low and high nutrient availability (LN; 0.25 mM N and HN; 2.50 mM N) on growth, biomass allocation and chemical composition of needles, stem and roots during the second growing season. Climatic conditions in the growth chamber simulated the mean growing season from May to early October in Flakaliden, northern Sweden. In the latter half of the growing season, biomass allocation changed in response to nutrient availability: increased root growth and decreased shoot growth led to higher root/shoot ratios in LN seedlings than in HN seedlings. At high nutrient availability, total biomass, especially stem biomass, increased, as did total nonstructural carbohydrate and nitrogen contents per seedling. Responses of stem chemistry to nutrient addition differed from those of adult trees of the same provenance. In HN seedlings, concentrations of α-cellulose, hemicellulose and lignin decreased in the secondary xylem. Our results illustrate the significance of retranslocation of stored nutrients to support new growth early in the season when root growth and nutrient uptake are still low. We conclude that nutrient availability alters allocation patterns, thereby influencing the success of 2-year-old Norway spruce seedlings at forest planting sites. |
format |
Text |
author |
Kaakinen, Seija Jolkkonen, Annika Iivonen, Sari Vapaavuori, Elina |
author_facet |
Kaakinen, Seija Jolkkonen, Annika Iivonen, Sari Vapaavuori, Elina |
author_sort |
Kaakinen, Seija |
title |
Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season |
title_short |
Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season |
title_full |
Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season |
title_fullStr |
Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season |
title_full_unstemmed |
Growth, allocation and tissue chemistry of Picea abies seedlings affected by nutrient supply during the second growing season |
title_sort |
growth, allocation and tissue chemistry of picea abies seedlings affected by nutrient supply during the second growing season |
publisher |
Oxford University Press |
publishDate |
2004 |
url |
http://treephys.oxfordjournals.org/cgi/content/short/24/6/707 https://doi.org/10.1093/treephys/24.6.707 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_relation |
http://treephys.oxfordjournals.org/cgi/content/short/24/6/707 http://dx.doi.org/10.1093/treephys/24.6.707 |
op_rights |
Copyright (C) 2004, Oxford University Press |
op_doi |
https://doi.org/10.1093/treephys/24.6.707 |
container_title |
Tree Physiology |
container_volume |
24 |
container_issue |
6 |
container_start_page |
707 |
op_container_end_page |
719 |
_version_ |
1766147027722305536 |