Claim · model-written summary
Carrots in polyculture were either more variable or did not differ significantly from monoculture.
- Taxon
- carrots
Daucus carotae0 - Outcome
- variablee0
- Direction
- more variablee0
- Comparator
- monoculturee0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“experimental polycultures of tomatoes (Lycopersicon esculentum) and cucumbers (Cucumis sativus) and of carrots (Daucus carota) and beans (Phaseolus vulgaris), each crop species was either significantly more variable when in a polyculture than as a monoculture; or there was no significant difference between cropping systems”
Title
Schultz, Brian Buettner Deep Blue (University of Michigan) 1984
Other claims from this paper (8)
- Association Competition was modeled to reduce polyculture stability relative to monocultures, particularly for individual crops.
- Association Negative correlation in environmental responses was expected to reduce relative polyculture stability.
- Observation Tomatoes in polyculture were either more variable or did not differ significantly from monoculture.
- Observation Cucumbers in polyculture were either more variable or did not differ significantly from monoculture.
- Observation Beans in polyculture were either more variable or did not differ significantly from monoculture.
- Observation No crop was significantly more variable in monoculture.
- Observation Combined yield variability did not consistently differ between cropping systems.
- Mechanism The authors concluded that competition tends to destabilize polycultures.