Claim · model-written summary
Spread harvesting raised yield of three lettuce cultivars to about 400% of single harvesting.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- Spread harvestinge1
- Outcome
- yielde0
- Value
- ca. 400%e0
- Comparator
- single harvestinge0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield of the 3 lettuce cultivars and spinach was ca. 400% than single harvesting.”
e1“Spread harvesting had a large influence on the amount of harvested biomass per unit area.”
Title
Growing fresh food on future space missions: Environmental conditions and crop management
Esther Meinen; Tom Dueck; Frank Kempkes; et al. Scientia Horticulturae 2018. doi:10.1016/j.scienta.2018.03.002
Other claims from this paper (15)
- Intervention effect Lettuce biomass rose 35–90% as light increased from 200 to 600 μmol m−2 s−1.
- Intervention effect Red mustard responded well to increased light, with a 35–90% range reported jointly with lettuce.
- Observation Other crops responded variably to increasing light.
- Intervention effect Leafy-green quality often deteriorated at higher light intensities.
- Intervention effect Determinate tomato fruit biomass increased 8–15% from 300 to 600 μmol m−2 s−1 light.
- Intervention effect Cucumber fruit biomass increased 8–15% from 300 to 600 μmol m−2 s−1 light.
- Association Tomato fruit number increased with biomass.
- Observation Cucumber fruit number decreased while individual fruits became heavier.
- Observation Individual cucumber fruits became heavier.
- Intervention effect Increasing temperature had variable effects on production.
- Intervention effect Herb regrowth often lagged at 25 °C.
- Observation The expected fresh food production ranking was lettuce, cucumber, radish, then tomato.
- Intervention effect Spread harvesting raised spinach yield to about 400% of single harvesting.
- Intervention effect Increasing plant density increased fresh food production.
- Intervention effect Applying spread harvesting increased fresh food production.