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Do nitrogen additions change the sensitivity of detached shoots from Sitka and Norway spruce to freezing temperatures? Evidence from three field manipulation studies

Sheppard, L J; Rosengren, Ulrika LU and Emmett, B A (2003) In Scandinavian Journal of Forest Research 18(6). p.487-498
Abstract
Controversy surrounds the impact of atmospheric nitrogen (N) deposition on frost hardiness. There are no specific field studies and the relevance of data from N fertilizer studies is questionable. Field N manipulation experiments with Norway spruce [Picea abies . (L) Karst.] at Skogaby, Sweden, and Sitka spruce [P. sitchensis . (Bong.) Carr.] at Aber in Wales and Deepsyke in Scotland were sampled in November/December to assess hardiness. The N was supplied with different accompanying ions, from 35 to 100 kg N ha(-1) yr(-1), as solid fertilizer, in irrigation water or to the canopy. Detached shoots were experimentally frozen and damage was assessed from electrolyte leakage. Frost hardiness was not significantly affected by the N treatments... (More)
Controversy surrounds the impact of atmospheric nitrogen (N) deposition on frost hardiness. There are no specific field studies and the relevance of data from N fertilizer studies is questionable. Field N manipulation experiments with Norway spruce [Picea abies . (L) Karst.] at Skogaby, Sweden, and Sitka spruce [P. sitchensis . (Bong.) Carr.] at Aber in Wales and Deepsyke in Scotland were sampled in November/December to assess hardiness. The N was supplied with different accompanying ions, from 35 to 100 kg N ha(-1) yr(-1), as solid fertilizer, in irrigation water or to the canopy. Detached shoots were experimentally frozen and damage was assessed from electrolyte leakage. Frost hardiness was not significantly affected by the N treatments irrespective of site, dose, species or length of treatment. Shoots that had received N were generally the most hardy. The results are consistent with the nutritional status of the foliage at the time of sampling. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
field manipulation, frost hardiness, nitrogen, Norway spruce, Sitka
in
Scandinavian Journal of Forest Research
volume
18
issue
6
pages
487 - 498
publisher
Taylor & Francis
external identifiers
  • wos:000186927100002
  • scopus:0346786135
ISSN
0282-7581
DOI
10.1080/02827580310016926
language
English
LU publication?
yes
id
753b0a19-286d-46a8-8259-f98c1f5f3bf0 (old id 137580)
date added to LUP
2007-07-02 14:10:48
date last changed
2018-01-07 08:52:45
@article{753b0a19-286d-46a8-8259-f98c1f5f3bf0,
  abstract     = {Controversy surrounds the impact of atmospheric nitrogen (N) deposition on frost hardiness. There are no specific field studies and the relevance of data from N fertilizer studies is questionable. Field N manipulation experiments with Norway spruce [Picea abies . (L) Karst.] at Skogaby, Sweden, and Sitka spruce [P. sitchensis . (Bong.) Carr.] at Aber in Wales and Deepsyke in Scotland were sampled in November/December to assess hardiness. The N was supplied with different accompanying ions, from 35 to 100 kg N ha(-1) yr(-1), as solid fertilizer, in irrigation water or to the canopy. Detached shoots were experimentally frozen and damage was assessed from electrolyte leakage. Frost hardiness was not significantly affected by the N treatments irrespective of site, dose, species or length of treatment. Shoots that had received N were generally the most hardy. The results are consistent with the nutritional status of the foliage at the time of sampling.},
  author       = {Sheppard, L J and Rosengren, Ulrika and Emmett, B A},
  issn         = {0282-7581},
  keyword      = {field manipulation,frost hardiness,nitrogen,Norway spruce,Sitka},
  language     = {eng},
  number       = {6},
  pages        = {487--498},
  publisher    = {Taylor & Francis},
  series       = {Scandinavian Journal of Forest Research},
  title        = {Do nitrogen additions change the sensitivity of detached shoots from Sitka and Norway spruce to freezing temperatures? Evidence from three field manipulation studies},
  url          = {http://dx.doi.org/10.1080/02827580310016926},
  volume       = {18},
  year         = {2003},
}