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| DOI: | 10.1046/J.1469-8137.1999.00544.x |
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| Web URL(s): | http://www.jstor.org/stable/view/2588881
Last checked: 07/16/2014
Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/2588881.pdf
Last checked: 07/16/2014
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Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Leishman, Michelle R.;
Sanbrooke, Karen J.;
Woodfin, Richard M. |
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| Author Affiliation: | Leishman, Sanbrooke, and Woodfin: NERC Centre for Population Biology, Imperial College at Silwood Park, Ascot, Berks SL5 7PY, UK |
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| Title: | The effects of elevated CO₂ and light environment on growth and reproductive performance of four annual species |
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| Section: | Research
Other records with the "Research" Section
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| Source: | New Phytologist. Vol. 144, No. 3, December 1999, p. 455-462. |
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| Publishing Information: | Oxford, England: Cambridge University Press. |
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| # of Pages: | 8 |
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| Related Web URL: | http://www.jstor.org/stable/info/2588881
Last checked: 07/16/2014
Notes: Abstract only |
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| Keywords: | TIC Keywords: Carbon dioxide; Light; Shade; Environmental factors; Growth; Reproductive fertility; Cardamine hirsuta; Spergula arvensis; Poa annua; Senecio vulgaris; Maturation; Establishment; Leaf blade length; Leaves; Tillers (vegetative); Height; Clipping weight; Germination; Seed weight; Flowering; Biomass
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| Abstract/Contents: | "To predict changes in the range and density of plant species as a consequence of elevated atmospheric CO₂, it is essential to characterize the effect of elevated CO₂ on key components of plant life history stages such as rate of establishment and maturation of individuals, reproductive output and offspring fitness. We measured vegetative response, phenology, reproductive output and seed quality of four annual C₃ plant species, grown from seed to senescence under ambient and elevated (ambient + 200 ppm) CO₂ and ambient and reduced (33% shade) light. Few previous studies have included all stages of a plant's life as well as characteristics of the next generation. Elevated CO₂ had no effect on the vegetative attributes of Cardamine hirsuta, Spergula arvensis or Poa annua whereas Senecio vulgaris produced longer leaves and greater biomass. Both Senecio and Poa had faster maturation times. The vegetative response of Senecio was not translated into increased seed output, although seed mass and carbon: nitrogen ratios were significantly increased. By contrast, Poa showed no vegetative response to elevated CO₂ but had significantly increased seed production. Thus we found no evidence for a simple translation from vegetative response to elevated CO₂ into reproductive response. There was also no consistent light-mediated reponse to elevated CO₂ among the four species. However, the effect of reduced light (33% shade) on vegetative and reproductive output was consistent across the four species and significantly stronger than the effect of elevated CO₂. On the basis of this glasshouse study, we predict that Poa would be most likely of the four species to show significant increase in population size and migration potential, as a result of increased reproductive output, under elevated atmospheric CO₂. However, this response may be relatively small compared with variation in growth and reproduction as a result of environmental heterogeneity in resources such as light." |
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| Language: | English |
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| References: | 33 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Leishman, M. R., K. J. Sanbrooke, and R. M. Woodfin. 1999. The effects of elevated CO₂ and light environment on growth and reproductive performance of four annual species. New Phytol. 144(3):p. 455-462. |
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| DOI: 10.1046/J.1469-8137.1999.00544.x |
| Web URL(s):
http://www.jstor.org/stable/view/2588881
Last checked: 07/16/2014
Access conditions: Item is within a limited-access website
http://www.jstor.org/stable/pdfplus/2588881.pdf
Last checked: 07/16/2014
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: QK 1 .N38 |
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