Abstract
SummarySummaryTemperature effects on photosynthesis, transpiration and stomatal resistance were studied in two greenhouse-grown tomato cvs under temperature regimes with maxima of 25° and 35°C. The cvs were Roma VF, which has low fruit set under high temperatures, and Saladette, with high fruit set under such conditions. Transpiration at noon under a high temperature after 48 h acclimatigation was 400% higher than under a moderate temperature, Saladette transpiring slightly less than Roma VF. Stomatal resistance reached a minimum at noon, in accordance with transpiration rate. Leaf water potential (ΨL) reached minima of –1.01 and –0.72 MPa at noon under high and moderate temperatures, respectively. There was no significant difference in Ψ between the cvs. Photosynthesis reached a maximum at 10.00 a.m., with no difference between the cvs. The physiological responses of the two cvs are discussed in relation to fruit set.
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Claims 8
Claim · model-written summary
Noon transpiration after acclimation was 400% higher at high than moderate temperature.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- high temperaturee0
- Outcome
- Transpiratione0
- Direction
- highere0
- Value
- 400%e0
- Qualifier
- after 48 h acclimatigatione0
- Comparator
- moderate temperaturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transpiration at noon under a high temperature after 48 h acclimatigation was 400% higher than under a moderate temperature”
t0“tomato plants”
Claim · model-written summary
Saladette transpired slightly less than Roma VF at high temperature.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- Saladettee0
- Outcome
- transpiringe0
- Direction
- lesse0
- Comparator
- Roma VFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saladette transpiring slightly less than Roma VF”
t0“tomato plants”
Claim · model-written summary
Stomatal resistance reached a noon minimum.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- Stomatal resistancee0
- Direction
- minimume0
- Qualifier
- at noone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Stomatal resistance reached a minimum at noon, in accordance with transpiration rate”
t0“tomato plants”
Claim · model-written summary
Noon leaf water potential was –1.01 MPa at high temperature.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- highe0
- Outcome
- Leaf water potentiale0
- Direction
- minimae0
- Value
- –1.01e0
- Qualifier
- at noone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf water potential (ΨL) reached minima of –1.01 and –0.72 MPa at noon under high and moderate temperatures, respectively”
t0“tomato plants”
Claim · model-written summary
Noon leaf water potential was –0.72 MPa at moderate temperature.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- moderatee0
- Outcome
- Leaf water potentiale0
- Direction
- minimae0
- Value
- –0.72 MPae0
- Qualifier
- at noone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf water potential (ΨL) reached minima of –1.01 and –0.72 MPa at noon under high and moderate temperatures, respectively”
t0“tomato plants”
Claim · model-written summary
Leaf water potential did not differ significantly between cultivars.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- cvse0
- Outcome
- Ψe0
- Direction
- no significant differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was no significant difference in Ψ between the cvs”
t0“tomato plants”
Claim · model-written summary
Photosynthesis reached its maximum at 10.00 a.m.
- Taxon
- tomatoSolanum lycopersicumt0
- Outcome
- Photosynthesise0
- Direction
- maximume0
- Qualifier
- at 10.00 a.m.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Photosynthesis reached a maximum at 10.00 a.m.”
t0“tomato plants”
Claim · model-written summary
Photosynthesis did not differ between cultivars.
- Taxon
- tomatoSolanum lycopersicumt0
- Material
- cvse0
- Outcome
- Photosynthesist0
- Direction
- no differencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with no difference between the cvs”
t0“Photosynthesis, transpiration and stomatal resistance to gas exchange in tomato plants”
The same questions in other papers
heat · physiology: gas exchange · Solanum lycopersicum (tomato)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
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.