Claim · model-written summary
Plant density had no significant effect on the cannabinoid concentration gradient from upper to lower canopy layers
- Taxon
- medicinal cannabis (Cannabis sativa L.)
Cannabis sativae0 - Treatment
- PDe1
- Outcome
- cannabinoid concentration gradient from upper to lower canopy layerse1
- Direction
- no_changeinferrede1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“medicinal cannabis (Cannabis sativa L.)”
e1“neither PD nor DVP had significant effects on the cannabinoid concentration gradient from upper to lower canopy layers”
Title
Torsten Schober; Achim Präger; Jens Hartung; et al. PLoS ONE 2024. doi:10.1371/journal.pone.0315951
Other claims from this paper (15)
- Intervention effect An increase in plant density led to a linear decrease in inflorescence yield per plant
- Association Plant density had a positive linear relationship with inflorescence yield per m2
- Association Plant density had a positive linear relationship with CBD yield per m2
- Observation Total area yields in the D-trial ranged from 119 to 247 g m-2 across the plant density range
- Association Vegetative phase length had a positive linear relationship with inflorescence yield per individual plant
- Association Vegetative phase length had a positive linear relationship with inflorescence yield per m2
- Association Vegetative phase length had a positive linear relationship with CBD production, plant size and lateral shoot length
- Observation Total area yields in the V-trial ranged from 295 to 571 g m-2 across the vegetative phase range
- Mechanism The yield increase is linked to more inflorescences per plant rather than larger inflorescences
- Intervention effect Vegetative phase length had no significant effect on the cannabinoid concentration gradient from upper to lower canopy layers
- Observation CBD concentrations in inflorescences from lower canopy layers were 23% lower in the V-trial
- Observation CBD concentrations in inflorescences from lower canopy layers were 46% lower in the D-trial
- Intervention effect Increasing plant density increased the proportion of higher-concentrated inflorescence fractions from upper canopy layers from 46% to 68%
- Intervention effect Extending the vegetative phase shifted the proportion of higher-concentrated upper canopy inflorescence fractions only marginally, from 45% to 50%
- Recommendation High-density production systems are advocated to increase the proportion of desired upper canopy inflorescence fractions