Abstract
The present study explored the effect of rain shelter and drought on photosynthetic activity and changes in leaf water status. Tomatoes were grown in the trial plot located at Hohai University, China, in 2011 and 2012, and allotted to five treatments [80% field capacity under open field (T1, control) and rain shelter (T2), 70%, 60%, and 50% of T2 (T3, T4, and T5)]. The lowest sap flow rate and relative water content and the highest values for specific leaf area were obtained from plants in T5. T2 decreased the average net photosynthetic rate (PN) by 5.35% compared to the control, although there was no reduction in intercellular CO2 concentration and stomatal conductance. The average reduction of transpiration rate registered under rain shelters was only around 10.2% in both the years. The PN, maximum quantum yield of PSII photochemistry (Fv/Fm) and activity of the water-splitting complex on the donor side of the PSII (Fv/Fo) decreased with irrigation volume. Quenching analyses showed the development of a lower photochemical quenching (qP) in plants under rain shelters, accompanied by the development of a higher nonphotochemical quenching (qN). Drought-stressed tomato exhibited a decrease in qP parallel to an increase in qN.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Rain shelter decreased mean net photosynthetic rate by 5.35% relative to the open-field control.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- rain sheltere1
- Outcome
- net photosynthetic rate (PN)e0
- Direction
- decreasede0
- Value
- 5.35%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e0“T2 decreased the average net photosynthetic rate (PN) by 5.35% compared to the control”
e1“rain shelter (T2)”
Claim · model-written summary
Photosynthetic rate, Fv/Fm and Fv/Fo decreased with increasing irrigation volume.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- irrigation volumee2
- Outcome
- PN, maximum quantum yield of PSII photochemistry (Fv/Fm) and activity of the water-splitting complex on the donor side of the PSII (Fv/Fo)e2
- Direction
- decreasede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e2“The PN, maximum quantum yield of PSII photochemistry (Fv/Fm) and activity of the water-splitting complex on the donor side of the PSII (Fv/Fo) decreased with irrigation volume”
Claim · model-written summary
Plants under rain shelters developed lower photochemical quenching (qP).
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- rain shelterse3
- Outcome
- photochemical quenching (qP)e3
- Direction
- lowere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e3“Quenching analyses showed the development of a lower photochemical quenching (qP) in plants under rain shelters, accompanied by the development of a higher nonphotochemical quenching (qN)”
Claim · model-written summary
Plants under rain shelters developed higher nonphotochemical quenching (qN).
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- rain shelterse3
- Outcome
- nonphotochemical quenching (qN)e3
- Direction
- highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e3“Quenching analyses showed the development of a lower photochemical quenching (qP) in plants under rain shelters, accompanied by the development of a higher nonphotochemical quenching (qN)”
Claim · model-written summary
Drought-stressed tomato showed a decrease in qP.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Drought-stressede4
- Outcome
- qPe4
- Direction
- a decreasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e4“Drought-stressed tomato exhibited a decrease in qP parallel to an increase in qN”
Claim · model-written summary
Drought-stressed tomato showed an increase in qN.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Drought-stressede4
- Outcome
- qNe4
- Direction
- an increasee4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e4“Drought-stressed tomato exhibited a decrease in qP parallel to an increase in qN”
Claim · model-written summary
The lowest sap flow rate and relative water content occurred in plants under treatment T5.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- T5e5
- Outcome
- sap flow rate and relative water contente5
- Direction
- loweste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e5“The lowest sap flow rate and relative water content and the highest values for specific leaf area were obtained from plants in T5”
Claim · model-written summary
The highest specific leaf area occurred in plants under treatment T5.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- T5e5
- Outcome
- specific leaf areae5
- Direction
- higheste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e5“The lowest sap flow rate and relative water content and the highest values for specific leaf area were obtained from plants in T5”
Claim · model-written summary
Rain shelter did not reduce intercellular CO2 concentration or stomatal conductance relative to control.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- rain sheltere1
- Outcome
- intercellular CO2 concentration and stomatal conductancee6
- Direction
- no reductione6
- Comparator
- controle6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e1“rain shelter (T2)”
e6“T2 decreased the average net photosynthetic rate (PN) by 5.35% compared to the control, although there was no reduction in intercellular CO2 concentration and stomatal conductance”
Claim · model-written summary
Average transpiration rate reduction under rain shelters was only around 10.2%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- rain shelterse7
- Outcome
- transpiration ratee7
- Direction
- reductione7
- Value
- around 10.2%e7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in tomato”
e7“The average reduction of transpiration rate registered under rain shelters was only around 10.2% in both the years”
The same questions in other papers
rainfall · physiology: photosynthesis · Solanum lycopersicum (tomato)Results agree
1 paper in the same direction as this paper
- 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.