Abstract
Abstract Three genotypes (‘Heinz 1350’, neglecta-1, yellow-green-5) of tomato ( Lycopersicon esculentum Mill.) were grown during winter under natural light or with natural light supplemented with light from high-pressure sodium vapor (HPS) lamps (200-400 μmol·s -1 ·m -2 ). The plants were grown in sand culture with NO - 3 or NH + 4 nutrition. Symptoms resembling Ca, Mg, K, and P deficiencies developed on the foliage of plants exposed to radiation from HPS lamps. Clustering of short branches in the lateral and terminal growing regions ( yg-5) and epinasty (‘Heinz 1350’ and neg -1) developed on the shoots receiving HPS irradiation. Ethylene evolution by the three genotypes was enhanced by the supplemental lighting and NH + 4 nutrition. Concentrations of Ca, Mg, K, and P in the shoots were lower in plants receiving HPS irradiation than in plants grown under natural light. Dry weights of shoots were increased by supplemental lighting relative to the weights of the plants receiving only natural light. Total accumulation of Ca, Mg, K, and P was not suppressed by HPS lighting, indicating that the phytotoxic effects of the lamps was not due to their effects on total nutrient accumulation.
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Claims 8
Claim · model-written summary
HPS lighting produced foliage symptoms resembling Ca, Mg, K and P deficiencies.
- Taxon
- Tomato
Solanum lycopersicumt0 - Organ / stage
- foliagee0
- Treatment
- radiation from HPS lampse0
- Outcome
- Symptoms resembling Ca, Mg, K, and P deficienciese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Symptoms resembling Ca, Mg, K, and P deficiencies developed on the foliage of plants exposed to radiation from HPS lamps.”
t0“Tomato Genotypes”
Claim · model-written summary
HPS irradiation produced clusters of short branches in yg-5.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- yg-5e0
- Organ / stage
- shootse0
- Treatment
- HPS irradiatione0
- Outcome
- Clustering of short branchese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clustering of short branches in the lateral and terminal growing regions ( yg-5) and epinasty (‘Heinz 1350’ and neg -1) developed on the shoots receiving HPS irradiation.”
t0“Tomato Genotypes”
Claim · model-written summary
HPS irradiation produced shoot epinasty in Heinz 1350 and neg -1.
- Taxon
- TomatoSolanum lycopersicumt0
- Material
- ‘Heinz 1350’ and neg -1e0
- Organ / stage
- shootse0
- Treatment
- HPS irradiatione0
- Outcome
- epinastye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clustering of short branches in the lateral and terminal growing regions ( yg-5) and epinasty (‘Heinz 1350’ and neg -1) developed on the shoots receiving HPS irradiation.”
t0“Tomato Genotypes”
Claim · model-written summary
Supplemental lighting enhanced ethylene evolution in all three tomato genotypes.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- supplemental lightinge0
- Outcome
- Ethylene evolutione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene evolution by the three genotypes was enhanced by the supplemental lighting and NH + 4 nutrition.”
t0“Tomato Genotypes”
Claim · model-written summary
Ammonium nutrition enhanced ethylene evolution in all three tomato genotypes.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- NH + 4 nutritione0
- Outcome
- Ethylene evolutione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ethylene evolution by the three genotypes was enhanced by the supplemental lighting and NH + 4 nutrition.”
t0“Tomato Genotypes”
Claim · model-written summary
Shoot Ca, Mg, K and P concentrations were lower under HPS than natural light.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- HPS irradiatione0
- Outcome
- Concentrations of Ca, Mg, K, and P in the shootse0
- Direction
- lowere0
- Comparator
- natural lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Concentrations of Ca, Mg, K, and P in the shoots were lower in plants receiving HPS irradiation than in plants grown under natural light.”
t0“Tomato Genotypes”
Claim · model-written summary
Supplemental lighting increased shoot dry weight relative to natural light.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- supplemental lightinge0
- Outcome
- Dry weights of shootse0
- Direction
- increasede0
- Comparator
- only natural lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry weights of shoots were increased by supplemental lighting relative to the weights of the plants receiving only natural light.”
t0“Tomato Genotypes”
Claim · model-written summary
HPS lighting did not suppress total Ca, Mg, K and P accumulation.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- HPS lightinge0
- Outcome
- Total accumulation of Ca, Mg, K, and Pe0
- Direction
- not suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total accumulation of Ca, Mg, K, and P was not suppressed by HPS lighting”
t0“Tomato Genotypes”
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