Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens)
Effects of mineral nitrogen (2, 4, 6 and 8 m M NH 4 NO 3 ) and nodulation with Rhizobium on frost hardiness in seedlings of white clover ( Trifolium repens ) have been studied. Seedlings of a population from Bodø (67°N lat.) were grown in Leonard jars under controlled conditions in a phytotron. For...
Published in: | Physiologia Plantarum |
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crwiley:10.1111/j.1399-3054.1993.tb01386.x 2024-06-02T08:04:29+00:00 Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) Sandli, Nina Svenning, Mette M. Røsnes, Kirsti Junttila, Olavi 1993 http://dx.doi.org/10.1111/j.1399-3054.1993.tb01386.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1399-3054.1993.tb01386.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1399-3054.1993.tb01386.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Physiologia Plantarum volume 88, issue 4, page 661-667 ISSN 0031-9317 1399-3054 journal-article 1993 crwiley https://doi.org/10.1111/j.1399-3054.1993.tb01386.x 2024-05-03T11:33:09Z Effects of mineral nitrogen (2, 4, 6 and 8 m M NH 4 NO 3 ) and nodulation with Rhizobium on frost hardiness in seedlings of white clover ( Trifolium repens ) have been studied. Seedlings of a population from Bodø (67°N lat.) were grown in Leonard jars under controlled conditions in a phytotron. For induction of frost hardening, plants were first exposed to 12 h photoperiod conditions for 2 weeks at 18°C, then for 2 weeks at 6°C and finally for 2 weeks at 0.5°C. Frost hardiness after treatments at 6 and 0.5°C was significantly enhanced by increasing nitrogen supply and was positively correlated with total nitrogen content of the stolons. Frost hardiness of nodulated plants correlated to the tissue nitrogen concentration. Content of soluble proteins in stolons decreased during hardening at 6°C but did not change during treatment at 0.5°C. There were minor changes in total amount of free amino acids during hardening. Both absolute and relative amounts of proline and arginine increased, and those of asparagine decreased during hardening. Absolute amounts of all free amino acids increased with increasing nitrogen supply, but the changes during hardening were similar in all treatments. There was a significant increase in the content of soluble carbohydrates during hardening. However, this increase was inversely related to nitrogen supply. Article in Journal/Newspaper Bodø Bodø Wiley Online Library Bodø ENVELOPE(14.405,14.405,67.280,67.280) Physiologia Plantarum 88 4 661 667 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Effects of mineral nitrogen (2, 4, 6 and 8 m M NH 4 NO 3 ) and nodulation with Rhizobium on frost hardiness in seedlings of white clover ( Trifolium repens ) have been studied. Seedlings of a population from Bodø (67°N lat.) were grown in Leonard jars under controlled conditions in a phytotron. For induction of frost hardening, plants were first exposed to 12 h photoperiod conditions for 2 weeks at 18°C, then for 2 weeks at 6°C and finally for 2 weeks at 0.5°C. Frost hardiness after treatments at 6 and 0.5°C was significantly enhanced by increasing nitrogen supply and was positively correlated with total nitrogen content of the stolons. Frost hardiness of nodulated plants correlated to the tissue nitrogen concentration. Content of soluble proteins in stolons decreased during hardening at 6°C but did not change during treatment at 0.5°C. There were minor changes in total amount of free amino acids during hardening. Both absolute and relative amounts of proline and arginine increased, and those of asparagine decreased during hardening. Absolute amounts of all free amino acids increased with increasing nitrogen supply, but the changes during hardening were similar in all treatments. There was a significant increase in the content of soluble carbohydrates during hardening. However, this increase was inversely related to nitrogen supply. |
format |
Article in Journal/Newspaper |
author |
Sandli, Nina Svenning, Mette M. Røsnes, Kirsti Junttila, Olavi |
spellingShingle |
Sandli, Nina Svenning, Mette M. Røsnes, Kirsti Junttila, Olavi Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) |
author_facet |
Sandli, Nina Svenning, Mette M. Røsnes, Kirsti Junttila, Olavi |
author_sort |
Sandli, Nina |
title |
Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) |
title_short |
Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) |
title_full |
Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) |
title_fullStr |
Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) |
title_full_unstemmed |
Effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (Trifolium repens) |
title_sort |
effect of nitrogen supply on frost resistance, nitrogen metabolism and carbohydrate content in white clover (trifolium repens) |
publisher |
Wiley |
publishDate |
1993 |
url |
http://dx.doi.org/10.1111/j.1399-3054.1993.tb01386.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1399-3054.1993.tb01386.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1399-3054.1993.tb01386.x |
long_lat |
ENVELOPE(14.405,14.405,67.280,67.280) |
geographic |
Bodø |
geographic_facet |
Bodø |
genre |
Bodø Bodø |
genre_facet |
Bodø Bodø |
op_source |
Physiologia Plantarum volume 88, issue 4, page 661-667 ISSN 0031-9317 1399-3054 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1399-3054.1993.tb01386.x |
container_title |
Physiologia Plantarum |
container_volume |
88 |
container_issue |
4 |
container_start_page |
661 |
op_container_end_page |
667 |
_version_ |
1800749114946748416 |