Abstract
ABSTRACT The growth and morphogenetic development in shoot cultures of lemon basil (Ocimutn basilicum), oregano (Origanum vulgare), peppermint (Mentha × piperita), spearmint (Mentha spicata), and thyme (Thymus vulgaris) shoots on MS salts and 0.8 percent agar containing 0 or 3 percent sucrose were determined under 350, 1,500, 3,000, 10,000, and 30,000 μl Co2/liter of air were determined after 8 weeks growth. High CO2 levels, especially the ultra-high levels (≥ 3,000 μl CO2/liter of air), substantially increased fresh weight and leaf and root numbers in all cultures, whether or not the basal media contained sucrose, as compared with cultures grown on the same basal media under ambient air (350 μl CO2/liter of air). Ultra-high CO2 levels, also, enhanced the formation of aerial adventitious roots from the shoots of all species tested. A photosynthetic photon flux density of 180 μmole m−2.s−1 using a 16 h light/8 h dark photoperiod consistently provided better growth than lower light levels.
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Claims 11
Claim · model-written summary
Ultra-high CO2 increased fresh weight and leaf and root numbers in lemon basil cultures.
- Taxon
- lemon basil
Ocimum ×africanume1 - Treatment
- ultra-high levels (≥ 3,000 μl CO2/liter of air)e0
- Outcome
- fresh weight and leaf and root numberse0
- Direction
- increasede0
- Comparator
- ambient air (350 μl CO2/liter of air)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 levels, especially the ultra-high levels (≥ 3,000 μl CO2/liter of air), substantially increased fresh weight and leaf and root numbers in all cultures, whether or not the basal media contained sucrose, as compared with cultures grown on the same basal media under ambient air (350 μl CO2/liter of air)”
e1“lemon basil”
Claim · model-written summary
Ultra-high CO2 increased fresh weight and leaf and root numbers in oregano cultures.
- Taxon
- oregano
Origanum vulgaree1 - Treatment
- ultra-high levels (≥ 3,000 μl CO2/liter of air)e0
- Outcome
- fresh weight and leaf and root numberse0
- Direction
- increasede0
- Comparator
- ambient air (350 μl CO2/liter of air)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 levels, especially the ultra-high levels (≥ 3,000 μl CO2/liter of air), substantially increased fresh weight and leaf and root numbers in all cultures, whether or not the basal media contained sucrose, as compared with cultures grown on the same basal media under ambient air (350 μl CO2/liter of air)”
e1“oregano”
Claim · model-written summary
Ultra-high CO2 increased fresh weight and leaf and root numbers in peppermint cultures.
- Taxon
- peppermint
Mentha ×piperitae1 - Treatment
- ultra-high levels (≥ 3,000 μl CO2/liter of air)e0
- Outcome
- fresh weight and leaf and root numberse0
- Direction
- increasede0
- Comparator
- ambient air (350 μl CO2/liter of air)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 levels, especially the ultra-high levels (≥ 3,000 μl CO2/liter of air), substantially increased fresh weight and leaf and root numbers in all cultures, whether or not the basal media contained sucrose, as compared with cultures grown on the same basal media under ambient air (350 μl CO2/liter of air)”
e1“peppermint”
Claim · model-written summary
Ultra-high CO2 increased fresh weight and leaf and root numbers in spearmint cultures.
- Taxon
- spearmint
Mentha spicatae1 - Treatment
- ultra-high levels (≥ 3,000 μl CO2/liter of air)e0
- Outcome
- fresh weight and leaf and root numberse0
- Direction
- increasede0
- Comparator
- ambient air (350 μl CO2/liter of air)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“High CO2 levels, especially the ultra-high levels (≥ 3,000 μl CO2/liter of air), substantially increased fresh weight and leaf and root numbers in all cultures, whether or not the basal media contained sucrose, as compared with cultures grown on the same basal media under ambient air (350 μl CO2/liter of air)”
e1“spearmint”
Claim · model-written summary
Ultra-high CO2 increased fresh weight and leaf and root numbers in thyme cultures.
- Taxon
- thyme
.JPG?width=60)
Thymus vulgarise1 - Treatment
- ultra-high levels (≥ 3,000 μl CO2/liter of air)e0
- Outcome
- fresh weight and leaf and root numberse0
- Direction
- increasede0
- Comparator
- ambient air (350 μl CO2/liter of air)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.JPG?width=500)
Verbatim
e0“High CO2 levels, especially the ultra-high levels (≥ 3,000 μl CO2/liter of air), substantially increased fresh weight and leaf and root numbers in all cultures, whether or not the basal media contained sucrose, as compared with cultures grown on the same basal media under ambient air (350 μl CO2/liter of air)”
e1“thyme”
Claim · model-written summary
Ultra-high CO2 enhanced aerial adventitious root formation in lemon basil.
- Taxon
- lemon basilOcimum ×africanume1
- Treatment
- Ultra-high CO2 levelse0
- Outcome
- formation of aerial adventitious rootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultra-high CO2 levels, also, enhanced the formation of aerial adventitious roots from the shoots of all species tested”
e1“lemon basil”
Claim · model-written summary
Ultra-high CO2 enhanced aerial adventitious root formation in oregano.
- Taxon
- oreganoOriganum vulgaree1
- Treatment
- Ultra-high CO2 levelse0
- Outcome
- formation of aerial adventitious rootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultra-high CO2 levels, also, enhanced the formation of aerial adventitious roots from the shoots of all species tested”
e1“oregano”
Claim · model-written summary
Ultra-high CO2 enhanced aerial adventitious root formation in peppermint.
- Taxon
- peppermintMentha ×piperitae1
- Treatment
- Ultra-high CO2 levelse0
- Outcome
- formation of aerial adventitious rootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultra-high CO2 levels, also, enhanced the formation of aerial adventitious roots from the shoots of all species tested”
e1“peppermint”
Claim · model-written summary
Ultra-high CO2 enhanced aerial adventitious root formation in spearmint.
- Taxon
- spearmintMentha spicatae1
- Treatment
- Ultra-high CO2 levelse0
- Outcome
- formation of aerial adventitious rootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultra-high CO2 levels, also, enhanced the formation of aerial adventitious roots from the shoots of all species tested”
e1“spearmint”
Claim · model-written summary
Ultra-high CO2 enhanced aerial adventitious root formation in thyme.
- Taxon
- thymeThymus vulgarise1
- Treatment
- Ultra-high CO2 levelse0
- Outcome
- formation of aerial adventitious rootse0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultra-high CO2 levels, also, enhanced the formation of aerial adventitious roots from the shoots of all species tested”
e1“thyme”
Claim · model-written summary
Light at 180 μmole m−2.s−1 and a 16 h/8 h photoperiod gave better growth than lower light.
- Taxon
- lemon basil (Ocimutn basilicum), oregano (Origanum vulgare), peppermint (Mentha × piperita), spearmint (Mentha spicata), and thyme (Thymus vulgaris)Mentha spicataMentha ×piperitaOriganum vulgareThymus vulgarisOcimum ×africanume1
- Treatment
- 180 μmole m−2.s−1 using a 16 h light/8 h dark photoperiode0
- Outcome
- growthe0
- Direction
- bettere0
- Comparator
- lower light levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A photosynthetic photon flux density of 180 μmole m−2.s−1 using a 16 h light/8 h dark photoperiod consistently provided better growth than lower light levels”
e1“lemon basil (Ocimutn basilicum), oregano (Origanum vulgare), peppermint (Mentha × piperita), spearmint (Mentha spicata), and thyme (Thymus vulgaris)”
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.