Abstract
Understanding how ornamentals will respond to the increasing level of CO2 in the atmosphere will aid future plant selection. In addition, understanding how rising levels of CO2 affect the potential of introduced ornamentals to become invasive weeds will be crucial to future management. This study was conducted to determine the effects of elevated CO2 on growth of two non-native plants commonly used as ornamentals in the southeastern U.S. Lantana (Lantana camara) and vinca (Catharanthus roseus) were grown at either 375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2 for four months in open top field chambers. Measurements of plant morphology, biomass, and plant tissue nitrogen were made for both species. Lantana growth was more responsive to elevated CO2 than was vinca. Lantana root and total plant dry weights were increased by 31 and 19%, respectively; in vinca, these values increased by only 9% each. Vinca root length was unaffected by CO2, however, it was increased by 46% in lantana. Elevated CO2 had no effect on flower dry weight for either species. This study suggests that rising atmospheric CO2 will have little impact on vinca as either an ornamental or as a potential invasive weed. Lantana's value as an ornamental may increase due to its abundant growth under elevated CO2. Lantana's greater root growth may also increase its drought tolerance, adding to its ornamental potential. However, the factors which may make it a more desirable ornamental under future higher CO2 conditions could also enhance its potential to become a serious invasive weed in the southeastern U.S.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 13
Claim · model-written summary
Lantana growth responded more strongly to elevated CO2 than vinca growth.
LantanaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lantana growth was more responsive to elevated CO2 than was vinca”
Claim · model-written summary
Lantana root dry weight increased by 31%.
- Treatment
- 575μmol mol−1 (elevated) CO2e1
- Outcome
- roote0
- Direction
- increasede0
- Value
- 31e0
- Comparator
- 375μmol mol−1 (ambient)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lantana root and total plant dry weights were increased by 31 and 19%, respectively”
e1“375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2”
Claim · model-written summary
Lantana total plant dry weight increased by 19%.
- Treatment
- 575μmol mol−1 (elevated) CO2e1
- Outcome
- total plant dry weightse0
- Direction
- increasede0
- Value
- 19%e0
- Comparator
- 375μmol mol−1 (ambient)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lantana root and total plant dry weights were increased by 31 and 19%, respectively”
e1“375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2”
Claim · model-written summary
Vinca root dry weight increased by 9%.
- Treatment
- 575μmol mol−1 (elevated) CO2e2
- Outcome
- roote1
- Direction
- increasede0
- Value
- 9%e0
- Comparator
- 375μmol mol−1 (ambient)e2
VincaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in vinca, these values increased by only 9% each”
e1“Lantana root and total plant dry weights”
e2“375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2”
Claim · model-written summary
Vinca total plant dry weight increased by 9%.
- Treatment
- 575μmol mol−1 (elevated) CO2e2
- Outcome
- total plant dry weightse1
- Direction
- increasede0
- Value
- 9%e0
- Comparator
- 375μmol mol−1 (ambient)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in vinca, these values increased by only 9% each”
e1“Lantana root and total plant dry weights”
e2“375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2”
Claim · model-written summary
Lantana root length increased by 46% under elevated CO2.
- Treatment
- 575μmol mol−1 (elevated) CO2e2
- Outcome
- root lengthe1
- Direction
- increasede0
- Value
- 46%e0
- Comparator
- 375μmol mol−1 (ambient)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was increased by 46% in lantana”
e1“Vinca root length was unaffected by CO2”
e2“375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2”
Claim · model-written summary
Vinca root length was unaffected by CO2.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vinca root length was unaffected by CO2”
e1“375μmol mol−1 (ambient) or 575μmol mol−1 (elevated) CO2”
Claim · model-written summary
Elevated CO2 had no effect on Lantana flower dry weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated CO2 had no effect on flower dry weight for either species”
e1“Lantana (Lantana camara) and vinca (Catharanthus roseus)”
Claim · model-written summary
Elevated CO2 had no effect on vinca flower dry weight.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Elevated CO2 had no effect on flower dry weight for either species”
e1“Lantana (Lantana camara) and vinca (Catharanthus roseus)”
Claim · model-written summary
Rising CO2 was interpreted to have little impact on vinca as an ornamental or invasive weed.
- Outcome
- little impact on vinca as either an ornamental or as a potential invasive weede0
- Direction
- little impacte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“rising atmospheric CO2 will have little impact on vinca as either an ornamental or as a potential invasive weed”
Claim · model-written summary
Elevated CO2 may increase Lantana ornamental value through abundant growth.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lantana's value as an ornamental may increase due to its abundant growth under elevated CO2”
Claim · model-written summary
Greater Lantana root growth may increase drought tolerance.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lantana's greater root growth may also increase its drought tolerance”
Claim · model-written summary
Traits favored by high CO2 could enhance Lantana invasive potential in the southeastern US.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“could also enhance its potential to become a serious invasive weed in the southeastern U.S.”
e1“Lantana's greater root growth”