Abstract
Abstract Hemp ( Cannabis sativa ) is a burgeoning crop, but research‐based information about genetic and environmental effects of cannabinoid production is limited and will be essential for expanded cultivation. There are limited data available about the effect of environmental stressors on cannabinoid content, particularly for tetrahydrocannabinol (THC) in high‐cannabidiol (CBD) hemp. To address this, five stress treatments were applied in a replicated field trial with three high‐CBD hemp cultivars and cannabinoid content was assayed over a 3‐week time‐course spanning floral maturation. Cannabinoid production in terminal inflorescence shoot tip samples of three cultivars was measured under stress imposed by flooding, ethephon, powdery mildew, herbicide, and physical wounding in a split plot design. The treatments had limited effects on cannabinoid levels, with the exception of herbicide treatment which resulted in decreased cannabinoid content. Notably, there was no evidence that any of these stresses caused THC concentration or the ratio of THC to CBD to increase at harvest.
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Claims 4
Claim · model-written summary
Herbicide treatment decreased cannabinoid content.
- Taxon
- hemp (Cannabis sativa L.)
Cannabis sativat0 - Treatment
- herbicide treatmente0
- Outcome
- cannabinoid contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“herbicide treatment which resulted in decreased cannabinoid content.”
t0“hemp (Cannabis sativa L.)”
Claim · model-written summary
Flooding, ethephon, powdery mildew, and wounding had limited effects on cannabinoid levels.
- Taxon
- hemp (Cannabis sativa L.)Cannabis sativat0
- Treatment
- floodinge0
- Outcome
- cannabinoid levelse1
- Direction
- limited effectse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stress imposed by flooding, ethephon, powdery mildew, herbicide, and physical wounding”
e1“The treatments had limited effects on cannabinoid levels, with the exception of herbicide treatment”
t0“hemp (Cannabis sativa L.)”
Claim · model-written summary
No tested stress was found to increase THC concentration at harvest.
- Taxon
- hemp (Cannabis sativa L.)Cannabis sativat0
- Organ / stage
- harveste0
- Treatment
- these stressese0
- Outcome
- THC concentratione0
- Direction
- no evidencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no evidence that any of these stresses caused THC concentration or the ratio of THC to CBD to increase at harvest.”
t0“hemp (Cannabis sativa L.)”
Claim · model-written summary
No tested stress was found to increase the THC to CBD ratio at harvest.
- Taxon
- hemp (Cannabis sativa L.)Cannabis sativat0
- Organ / stage
- harveste0
- Treatment
- these stressese0
- Outcome
- ratio of THC to CBDe0
- Direction
- no evidencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no evidence that any of these stresses caused THC concentration or the ratio of THC to CBD to increase at harvest.”
t0“hemp (Cannabis sativa L.)”
The same questions in other papers
flooding · molecular: metabolites · Cannabis sativaResults agree
1 paper in the same direction as this paper
- negative
herbicide · molecular: metabolites · Cannabis sativaResults agree
2 papers in the same direction as this paper
- negative
- no effect
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.