Abstract
ABSTRACT The growth and morphogenesis of spearmint (Mentha spicata L.), thyme (Thymus vulgaris L.), and water mint (Mentha aquatica L.) were determined after four weeks under various levels of CO2. Those plants grown in a greenhouse in ultra-high CO2 levels (≥3,000 μl CO2/liter) had increased fresh weight, and leaf, root, and shoot numbers as compared with plants grown under the same conditions in ambient air or in high CO2 levels (7,500 μl CO2/liter). For example, fresh weight of spearmint and water mint increased 150 and 220 percent, respectively, under 10,000 μl CO2/liter as compared with growth under 350 μl CO2/liter. Thyme fresh weight increased 160 percent under 3,000 μl CO2/liter as compared with growth under ambient air. Shoot cμtures given an elevated CO2 (10,000 μl CO2/liter) pretreatment invariably exhibited higher rates of growth and morphogenesis upon transfer to soil as compared with shoots pretreated with ambient air, regardless if the plant was subsequently grown in ambient or elevated CO2 levels.
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 7
Claim · model-written summary
Ultra-high CO2 increased spearmint fresh weight and leaf, root, and shoot numbers.
- Taxon
- spearmint
Mentha spicatae1 - Treatment
- ultra-high CO2 levels (≥3,000 μl CO2/liter)e0
- Outcome
- fresh weight, and leaf, root, and shoot numberse0
- Direction
- increasede0
- Comparator
- ambient aire0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Those plants grown in a greenhouse in ultra-high CO2 levels (≥3,000 μl CO2/liter) had increased fresh weight, and leaf, root, and shoot numbers as compared with plants grown under the same conditions in ambient air or in high CO2 levels (7,500 μl CO2/liter)”
e1“spearmint (Mentha spicata L.)”
Claim · model-written summary
Ultra-high CO2 increased thyme fresh weight and leaf, root, and shoot numbers.
- Taxon
- thyme
.JPG?width=60)
Thymus vulgarise1 - Treatment
- ultra-high CO2 levels (≥3,000 μl CO2/liter)e0
- Outcome
- fresh weight, and leaf, root, and shoot numberse0
- Direction
- increasede0
- Comparator
- ambient aire0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“Those plants grown in a greenhouse in ultra-high CO2 levels (≥3,000 μl CO2/liter) had increased fresh weight, and leaf, root, and shoot numbers as compared with plants grown under the same conditions in ambient air or in high CO2 levels (7,500 μl CO2/liter)”
e1“thyme (Thymus vulgaris L.)”
Claim · model-written summary
Ultra-high CO2 increased water mint fresh weight and leaf, root, and shoot numbers.
- Taxon
- water mint
Mentha aquaticae1 - Treatment
- ultra-high CO2 levels (≥3,000 μl CO2/liter)e0
- Outcome
- fresh weight, and leaf, root, and shoot numberse0
- Direction
- increasede0
- Comparator
- ambient aire0
- Setting
- greenhousee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Those plants grown in a greenhouse in ultra-high CO2 levels (≥3,000 μl CO2/liter) had increased fresh weight, and leaf, root, and shoot numbers as compared with plants grown under the same conditions in ambient air or in high CO2 levels (7,500 μl CO2/liter)”
e1“water mint (Mentha aquatica L.)”
Claim · model-written summary
At 10,000 μl CO2/liter, spearmint fresh weight increased 150 percent against 350 μl CO2/liter.
- Taxon
- spearmintMentha spicatae0
- Treatment
- 10,000 μl CO2/litere0
- Outcome
- fresh weighte0
- Direction
- increasede0
- Value
- 150e0
- Comparator
- 350 μl CO2/litere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh weight of spearmint and water mint increased 150 and 220 percent, respectively, under 10,000 μl CO2/liter as compared with growth under 350 μl CO2/liter”
Claim · model-written summary
At 10,000 μl CO2/liter, water mint fresh weight increased 220 percent against 350 μl CO2/liter.
- Taxon
- water mintMentha aquaticae0
- Treatment
- 10,000 μl CO2/litere0
- Outcome
- fresh weighte0
- Direction
- increasede0
- Value
- 220 percente0
- Comparator
- 350 μl CO2/litere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fresh weight of spearmint and water mint increased 150 and 220 percent, respectively, under 10,000 μl CO2/liter as compared with growth under 350 μl CO2/liter”
Claim · model-written summary
At 3,000 μl CO2/liter, thyme fresh weight increased 160 percent versus ambient air.
- Taxon
- ThymeThymus vulgarise0
- Treatment
- 3,000 μl CO2/litere0
- Outcome
- fresh weighte0
- Direction
- increasede0
- Value
- 160 percente0
- Comparator
- ambient aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thyme fresh weight increased 160 percent under 3,000 μl CO2/liter as compared with growth under ambient air”
Claim · model-written summary
Shoot cultures pretreated with elevated CO2 later showed higher growth and morphogenesis on soil than ambient-air-pretreated shoots.
- Taxon
- spearmintMentha spicatae1
- Treatment
- elevated CO2 (10,000 μl CO2/liter) pretreatmente0
- Outcome
- rates of growth and morphogenesise0
- Direction
- highere0
- Qualifier
- regardless if the plant was subsequently grown in ambient or elevated CO2 levelse0
- Comparator
- shoots pretreated with ambient aire0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot cμtures given an elevated CO2 (10,000 μl CO2/liter) pretreatment invariably exhibited higher rates of growth and morphogenesis upon transfer to soil as compared with shoots pretreated with ambient air, regardless if the plant was subsequently grown in ambient or elevated CO2 levels”
e1“spearmint (Mentha spicata L.), thyme (Thymus vulgaris L.), and water mint (Mentha aquatica L.)”
The same questions in other papers
co2 · growth · Mentha spicata (spearmint)Results agree
1 paper in the same direction as this paper
- positive
co2 · growth · Thymus vulgaris (thyme)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.