Abstract
Two methods of removing bacteria from hydroponic nutrient solution [ultraviolet (UV) radiation and submicronic filter] were evaluated for efficiency and for their effects on lettuce (Lactuca sativa L.) production. Both methods were effective in removing bacteria; but, at high intensity, the ultraviolet sterilizer significantly inhibited the production of plants grown in the treated solution. Bacterial removal by lower intensity UV or a submicronic filter seemed to promote plant growth slightly, but showed no consistent, statistically significant effect.
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Claims 5
Claim · model-written summary
Ultraviolet (UV) radiation was effective in removing bacteria from hydroponic nutrient solution.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- ultraviolet (UV) radiatione0
- Outcome
- removing bacteriae1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two methods of removing bacteria from hydroponic nutrient solution [ultraviolet (UV) radiation and submicronic filter] were evaluated for efficiency and for their effects on lettuce (Lactuca sativa L.) production”
e1“Both methods were effective in removing bacteria”
Claim · model-written summary
A submicronic filter was effective in removing bacteria from hydroponic nutrient solution.
- Taxon
- lettuceLactuca sativae0
- Treatment
- submicronic filtere0
- Outcome
- removing bacteriae1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two methods of removing bacteria from hydroponic nutrient solution [ultraviolet (UV) radiation and submicronic filter] were evaluated for efficiency and for their effects on lettuce (Lactuca sativa L.) production”
e1“Both methods were effective in removing bacteria”
Claim · model-written summary
High-intensity ultraviolet sterilizer significantly inhibited the production of lettuce plants grown in the treated solution.
- Taxon
- lettuceLactuca sativae0
- Treatment
- ultraviolet sterilizere2
- Outcome
- productione2
- Direction
- inhibitede2
- Qualifier
- at high intensitye2
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two methods of removing bacteria from hydroponic nutrient solution [ultraviolet (UV) radiation and submicronic filter] were evaluated for efficiency and for their effects on lettuce (Lactuca sativa L.) production”
e2“at high intensity, the ultraviolet sterilizer significantly inhibited the production of plants grown in the treated solution”
Claim · model-written summary
Lower intensity UV seemed to promote lettuce plant growth slightly, with no consistent, statistically significant effect.
- Taxon
- lettuceLactuca sativae0
- Treatment
- lower intensity UVe3
- Outcome
- plant growthe3
- Direction
- promotee3
- Value
- slightlye3
- Qualifier
- no consistent, statistically significant effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two methods of removing bacteria from hydroponic nutrient solution [ultraviolet (UV) radiation and submicronic filter] were evaluated for efficiency and for their effects on lettuce (Lactuca sativa L.) production”
e3“Bacterial removal by lower intensity UV or a submicronic filter seemed to promote plant growth slightly, but showed no consistent, statistically significant effect”
Claim · model-written summary
A submicronic filter seemed to promote lettuce plant growth slightly, with no consistent, statistically significant effect.
- Taxon
- lettuceLactuca sativae0
- Treatment
- a submicronic filtere3
- Outcome
- plant growthe3
- Direction
- promotee3
- Value
- slightlye3
- Qualifier
- no consistent, statistically significant effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two methods of removing bacteria from hydroponic nutrient solution [ultraviolet (UV) radiation and submicronic filter] were evaluated for efficiency and for their effects on lettuce (Lactuca sativa L.) production”
e3“Bacterial removal by lower intensity UV or a submicronic filter seemed to promote plant growth slightly, but showed no consistent, statistically significant effect”
The same questions in other papers
uv · growth · Lactuca sativa (garden lettuce)Results differ
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See all 5 papers →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.