Abstract
SummaryA light-modulated greenhouse controller that varied the air temperature with incoming solar radiation was used in an experiment to compare the response of Craigella, Eurocross B and J172 tomatoes from first anthesis to the end of fruit harvesting to light-modulated and steady day-time air temperature regimes at CO2 concentrations of 600 and 1200 volumes per million.The yield of marketable fruit obtained from the light-modulated temperature regime was on average 26% higher after 6 weeks of picking and 9% higher after 22 weeks of picking than that from the steady temperature treatment. An increase in CO2 concentration from 600 to 1200 vpm resulted in overall increases of 15% and 8% in the early and final yields of ripe marketable fruit respectively. Tomatoes grown under a light-modulated temperature regime reached the half-harvest date on average 5 days ahead of those grown in a steady temperature regime. The difference in earliness of cropping resulting from CO2 enrichment to 1200 instead of 600 vpm was 3 days. J172 was the most successful cultivar judged by marketable yield and estimated gross monetary returns.
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Claims 7
Claim · model-written summary
Light-modulated temperature raised marketable fruit yield by 26% after six picking weeks.
- Taxon
- Tomatoes
Solanum lycopersicumt0 - Treatment
- light-modulated temperature regimee0
- Outcome
- yield of marketable fruite0
- Direction
- highere0
- Value
- 26%e0
- Qualifier
- after 6 weeks of pickinge0
- Comparator
- steady temperature treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The yield of marketable fruit obtained from the light-modulated temperature regime was on average 26% higher after 6 weeks of picking and 9% higher after 22 weeks of picking than that from the steady temperature treatment”
Claim · model-written summary
Light-modulated temperature raised marketable fruit yield by 9% after 22 picking weeks.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- light-modulated temperature regimee0
- Outcome
- yield of marketable fruite0
- Direction
- highere0
- Value
- 9%e0
- Qualifier
- after 22 weeks of pickinge0
- Comparator
- steady temperature treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The yield of marketable fruit obtained from the light-modulated temperature regime was on average 26% higher after 6 weeks of picking and 9% higher after 22 weeks of picking than that from the steady temperature treatment”
Claim · model-written summary
Raising CO2 from 600 to 1200 vpm increased early ripe marketable yield by 15%.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- 1200 vpme0
- Outcome
- earlye0
- Direction
- increasese0
- Value
- 15%e0
- Comparator
- 600e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“An increase in CO2 concentration from 600 to 1200 vpm resulted in overall increases of 15% and 8% in the early and final yields of ripe marketable fruit respectively”
Claim · model-written summary
Raising CO2 from 600 to 1200 vpm increased final ripe marketable yield by 8%.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- 1200 vpme0
- Outcome
- final yields of ripe marketable fruite0
- Direction
- increasese0
- Value
- 8%e0
- Comparator
- 600e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“An increase in CO2 concentration from 600 to 1200 vpm resulted in overall increases of 15% and 8% in the early and final yields of ripe marketable fruit respectively”
Claim · model-written summary
Light-modulated temperature advanced half-harvest by five days compared with steady temperature.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- light-modulated temperature regimee0
- Outcome
- half-harvest datee0
- Direction
- aheade0
- Value
- 5 dayse0
- Comparator
- steady temperature regimee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“Tomatoes grown under a light-modulated temperature regime reached the half-harvest date on average 5 days ahead of those grown in a steady temperature regime”
Claim · model-written summary
CO2 enrichment to 1200 vpm advanced cropping by three days relative to 600 vpm.
- Taxon
- TomatoesSolanum lycopersicumt0
- Treatment
- 1200e0
- Outcome
- earliness of croppinge0
- Value
- 3 dayse0
- Comparator
- 600 vpme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“The difference in earliness of cropping resulting from CO2 enrichment to 1200 instead of 600 vpm was 3 days”
Claim · model-written summary
J172 ranked best in marketable yield and estimated gross monetary returns.
- Taxon
- TomatoesSolanum lycopersicumt0
- Material
- J172e0
- Outcome
- marketable yield and estimated gross monetary returnse0
- Direction
- most successfule0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Tomatoes”
e0“J172 was the most successful cultivar judged by marketable yield and estimated gross monetary returns”
The same questions in other papers
light · quality: postharvest · Solanum lycopersicum (tomato)Results differ
35 papers in the same direction as this paper · 4 in the opposite direction
- negative
- negative
- negative
36 papers more in this group
See all 40 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.