Claim · model-written summary
Whole-crop returns increased with temperature only with carbon dioxide enrichment.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Treatment
- C02 enrichmente0
- Outcome
- Gross monetary returns for the whole crope0
- Direction
- increasede0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Glasshouse Tomatoes”
e0“Gross monetary returns for the whole crop increased with temperature only when C02 enrichment was given.”
Title
Effects of Day and Night Temperatures and Carbon Dioxide Enrichment on Yield of Glasshouse Tomatoes
A. Calvert Journal of Horticultural Science 1972. doi:10.1080/00221589.1972.11514462
Other claims from this paper (14)
- Intervention effect Higher day and night temperatures increased early yield.
- Intervention effect Higher day and night temperatures did not increase total yield.
- Intervention effect Higher day temperature in stage 1 was more beneficial than higher night temperature.
- Intervention effect Higher night temperature was probably more beneficial in stage 3.
- Intervention effect High temperature in stage 2 and low temperature before anthesis enhanced lower-truss flower and fruit development.
- Intervention effect High stage 3 temperature reduced fruit number in most trusses.
- Intervention effect C02 enrichment increased early crop by 90%.
- Intervention effect C02 enrichment increased total crop by 30%.
- Intervention effect Enrichment increased whole-crop monetary returns by 37 %.
- Mechanism The enrichment gain was mainly attributable to more and larger fruits.
- Intervention effect Enrichment advanced first-truss flowering.
- Intervention effect Enrichment did not further advance flowering in subsequent trusses.
- Association The share of select-grade fruit tended to rise with temperature.
- Intervention effect CO2 enrichment significantly reduced the select-grade share.