Claim · model-written summary
Higher day and night temperatures increased early yield.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Treatment
- Day temperatures above 64 °F (17.8 °C) and night temperatutes above 60 °F (15.6 °C)e0
- Outcome
- early yielde0
- 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“Day temperatures above 64 °F (17.8 °C) and night temperatutes above 60 °F (15.6 °C) increased early yield but not total yield of November-sown tomatoes.”
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 did not increase total yield.
- Association Whole-crop returns increased with temperature only with carbon dioxide enrichment.
- 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.