Abstract
Summary. The effect of carbon dioxide on tomato plants growing in a small greenhouse has been studied, the gas being produced by burning paraffin in a pressure burner. An increased yield of fruit of 23.9 per cent. for the first half of the season and 13.9 per cent. for the whole season was obtained. A significant increase in the growth‐rate of tomato seedlings was brought about by the treatment. The distribution of carbon dioxide in the glasshouse was investigated and the sources of loss of gas examined. The economic bearing of the results is briefly discussed.
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Claims 3
Claim · model-written summary
Carbon dioxide treatment increased tomato fruit yield by 23.9 per cent in the first half of the season.
- Taxon
- TOMATO PLANT
Solanum lycopersicumt0 - Treatment
- CARBON DIOXIDEt0
- Outcome
- yield of fruite0
- Direction
- increasede0
- Value
- 23.9 per cent.e0
- Qualifier
- first half of the seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“THE EFFECT ON THE TOMATO PLANT OF CARBON DIOXIDE PRODUCED BY COMBUSTION”
e0“An increased yield of fruit of 23.9 per cent. for the first half of the season and 13.9 per cent. for the whole season was obtained.”
Claim · model-written summary
Carbon dioxide treatment increased tomato fruit yield by 13.9 per cent over the whole season.
- Taxon
- TOMATO PLANTSolanum lycopersicumt0
- Treatment
- CARBON DIOXIDEt0
- Outcome
- yield of fruite0
- Direction
- increasede0
- Value
- 13.9 per cent.e0
- Qualifier
- whole seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“THE EFFECT ON THE TOMATO PLANT OF CARBON DIOXIDE PRODUCED BY COMBUSTION”
e0“An increased yield of fruit of 23.9 per cent. for the first half of the season and 13.9 per cent. for the whole season was obtained.”
Claim · model-written summary
Carbon dioxide treatment significantly increased tomato seedling growth rate.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- CARBON DIOXIDEt0
- Outcome
- growth‐rate of tomato seedlingse0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“THE EFFECT ON THE TOMATO PLANT OF CARBON DIOXIDE PRODUCED BY COMBUSTION”
e0“A significant increase in the growth‐rate of tomato seedlings was brought about by the treatment.”
The same questions in other papers
co2 · yield · Solanum lycopersicum (tomato)Results differ
31 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- no effect
- no effect
35 papers more in this group
See all 39 papers →co2 · growth · Solanum lycopersicum (tomato)Positive and negative results
58 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
71 papers more in this group
See all 75 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.