Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species
Three Alaskan tundra species, Carex bigelowii Torr., Betula nana L., and Ledum palustre L., were grown in controlled-environment chambers at two nutrition levels with two concentrations of atmospheric CO 2 to assess the interactive effects of these factors on growth, photosynthesis, and tissue nutri...
Published in: | Canadian Journal of Botany |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | French |
Published: |
Canadian Science Publishing
1986
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/b86-396 http://www.nrcresearchpress.com/doi/pdf/10.1139/b86-396 |
id |
crcansciencepubl:10.1139/b86-396 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/b86-396 2023-12-17T10:28:11+01:00 Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species Oberbauer, Steven F. Sionit, Nasser Hastings, Steven J. Oechel, Walter C. 1986 http://dx.doi.org/10.1139/b86-396 http://www.nrcresearchpress.com/doi/pdf/10.1139/b86-396 fr fre Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 64, issue 12, page 2993-2998 ISSN 0008-4026 Plant Science journal-article 1986 crcansciencepubl https://doi.org/10.1139/b86-396 2023-11-19T13:38:41Z Three Alaskan tundra species, Carex bigelowii Torr., Betula nana L., and Ledum palustre L., were grown in controlled-environment chambers at two nutrition levels with two concentrations of atmospheric CO 2 to assess the interactive effects of these factors on growth, photosynthesis, and tissue nutrient content. Carbon dioxide concentrations were maintained at 350 and 675 μL L −1 under photosynthetic photon flux densities of 450 μmol m −2 s −1 and temperatures of 20:15 °C (light:dark). Nutrient treatments were obtained by watering daily with 1/60- or 1/8- strength Hoagland's solution. Leaf, root, and total biomass were strongly enhanced by nutrient enrichment regardless of the CO 2 concentration. In contrast, enriched atmospheric CO 2 did not significantly affect plant biomass and there was no interaction between nutrition and CO 2 concentration during growth. Leaf photosynthesis was increased by better nutrition in two species but was unchanged by CO 2 enrichment during growth in all three species. The effects of nutrient addition and CO 2 enrichment on tissue nutrient concentrations were complex and differed among the three species. The data suggest that CO 2 enrichment with or without nutrient limitation has little effect on the biomass production of these three tundra species. Article in Journal/Newspaper Betula nana Carex bigelowii Tundra Canadian Science Publishing (via Crossref) Canadian Journal of Botany 64 12 2993 2998 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
French |
topic |
Plant Science |
spellingShingle |
Plant Science Oberbauer, Steven F. Sionit, Nasser Hastings, Steven J. Oechel, Walter C. Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species |
topic_facet |
Plant Science |
description |
Three Alaskan tundra species, Carex bigelowii Torr., Betula nana L., and Ledum palustre L., were grown in controlled-environment chambers at two nutrition levels with two concentrations of atmospheric CO 2 to assess the interactive effects of these factors on growth, photosynthesis, and tissue nutrient content. Carbon dioxide concentrations were maintained at 350 and 675 μL L −1 under photosynthetic photon flux densities of 450 μmol m −2 s −1 and temperatures of 20:15 °C (light:dark). Nutrient treatments were obtained by watering daily with 1/60- or 1/8- strength Hoagland's solution. Leaf, root, and total biomass were strongly enhanced by nutrient enrichment regardless of the CO 2 concentration. In contrast, enriched atmospheric CO 2 did not significantly affect plant biomass and there was no interaction between nutrition and CO 2 concentration during growth. Leaf photosynthesis was increased by better nutrition in two species but was unchanged by CO 2 enrichment during growth in all three species. The effects of nutrient addition and CO 2 enrichment on tissue nutrient concentrations were complex and differed among the three species. The data suggest that CO 2 enrichment with or without nutrient limitation has little effect on the biomass production of these three tundra species. |
format |
Article in Journal/Newspaper |
author |
Oberbauer, Steven F. Sionit, Nasser Hastings, Steven J. Oechel, Walter C. |
author_facet |
Oberbauer, Steven F. Sionit, Nasser Hastings, Steven J. Oechel, Walter C. |
author_sort |
Oberbauer, Steven F. |
title |
Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species |
title_short |
Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species |
title_full |
Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species |
title_fullStr |
Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species |
title_full_unstemmed |
Effects of CO 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of Alaskan tundra plant species |
title_sort |
effects of co 2 enrichment and nutrition on growth, photosynthesis, and nutrient concentration of alaskan tundra plant species |
publisher |
Canadian Science Publishing |
publishDate |
1986 |
url |
http://dx.doi.org/10.1139/b86-396 http://www.nrcresearchpress.com/doi/pdf/10.1139/b86-396 |
genre |
Betula nana Carex bigelowii Tundra |
genre_facet |
Betula nana Carex bigelowii Tundra |
op_source |
Canadian Journal of Botany volume 64, issue 12, page 2993-2998 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b86-396 |
container_title |
Canadian Journal of Botany |
container_volume |
64 |
container_issue |
12 |
container_start_page |
2993 |
op_container_end_page |
2998 |
_version_ |
1785580220351250432 |