Abstract
Cannabis sativa seeds of three industrial hemp cultivars, a medicinal strain of marijuana, and a ruderal strain were subjected to combinations of four temperatures (20°C, 5°C, −20°C, and −80°C) and three seed moisture contents (approximately 11%, 6%, and 4%) for 66 months. Storage of seeds with a moisture content of 11% at 20°C reduced the germinability of seeds of all varieties to zero in less than 18 months. Either reducing the temperature to at least 5°C or reducing the seed moisture content to at least 6% had a huge beneficial effect on maintaining seed viability. Additional reduction of temperature, but not additional reduction of moisture content had a small supplementary beneficial effect. No apparent benefit was noticed from oxygen-free seed storage.
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Claims 6
Claim · model-written summary
Storage of Cannabis sativa seeds at 11% moisture and 20°C reduced germinability of all varieties to zero in under 18 months.
- Taxon
- Cannabis sativa
Cannabis sativae0 - Treatment
- Storage of seeds with a moisture content of 11% at 20°Ce1
- Outcome
- germinabilitye1
- Direction
- reducede1
- Value
- zeroe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cannabis sativa seeds of three industrial hemp cultivars”
e1“Storage of seeds with a moisture content of 11% at 20°C reduced the germinability of seeds of all varieties to zero in less than 18 months”
Claim · model-written summary
Reducing storage temperature to at least 5°C had a huge beneficial effect on maintaining seed viability.
- Taxon
- Cannabis sativaCannabis sativae0
- Treatment
- reducing the temperature to at least 5°Ce2
- Outcome
- seed viabilitye2
- Direction
- beneficiale2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cannabis sativa seeds of three industrial hemp cultivars”
e2“Either reducing the temperature to at least 5°C or reducing the seed moisture content to at least 6% had a huge beneficial effect on maintaining seed viability”
Claim · model-written summary
Reducing seed moisture content to at least 6% had a huge beneficial effect on maintaining seed viability.
- Taxon
- Cannabis sativaCannabis sativae0
- Treatment
- reducing the seed moisture content to at least 6%e2
- Outcome
- seed viabilitye2
- Direction
- beneficiale2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cannabis sativa seeds of three industrial hemp cultivars”
e2“Either reducing the temperature to at least 5°C or reducing the seed moisture content to at least 6% had a huge beneficial effect on maintaining seed viability”
Claim · model-written summary
Additional reduction of temperature had a small supplementary beneficial effect on seed storage.
- Taxon
- Cannabis sativaCannabis sativae0
- Treatment
- Additional reduction of temperaturee3
- Outcome
- small supplementary beneficial effecte3
- Direction
- beneficiale3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cannabis sativa seeds of three industrial hemp cultivars”
e3“Additional reduction of temperature, but not additional reduction of moisture content had a small supplementary beneficial effect”
Claim · model-written summary
Additional reduction of moisture content had no supplementary beneficial effect on seed storage.
- Taxon
- Cannabis sativaCannabis sativae0
- Treatment
- additional reduction of moisture contente3
- Outcome
- supplementary beneficial effecte3
- Direction
- no_changeinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cannabis sativa seeds of three industrial hemp cultivars”
e3“Additional reduction of temperature, but not additional reduction of moisture content had a small supplementary beneficial effect”
Claim · model-written summary
Oxygen-free seed storage showed no apparent benefit.
- Taxon
- Cannabis sativaCannabis sativae0
- Treatment
- oxygen-free seed storagee4
- Outcome
- benefite4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cannabis sativa seeds of three industrial hemp cultivars”
e4“No apparent benefit was noticed from oxygen-free seed storage”
The same questions in other papers
storage · growth · 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.