Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought reduced PSII quantum efficiency, photochemical quenching, and maximum PSII quantum efficiency in wheat.

Taxon: wheatTriticum aestivumt0
Treatment: drought conditionse0
Outcome: PSII quantum efficiency, photochemical quenching, and maximum PSII quantum efficiencye0
Direction: reducede0

Verbatim

e0
“PSII quantum efficiency, photochemical quenching, and maximum PSII quantum efficiency were reduced under drought conditions”
✓ located verbatim in the source · abstract, characters 993–1116

t0
“Winter Wheat”
✓ located verbatim in the source · title, characters 83–95

Title

Low Nitrogen Priming Enhances Photosynthesis Adaptation to Water-Deficit Stress in Winter Wheat (Triticum aestivum L.) Seedlings

Jingwen Gao; Qiuci Luo; Chuanjiao Sun; et al. Frontiers in Plant Science 2019. doi:10.3389/fpls.2019.00818

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

High temperature decreased maximum quantum efficiency of PSII, potential photochemical efficiency, the quantum efficiency of PSII.

Taxon: eggplantSolanum melongenat0
Treatment: high temperaturee0
Outcome: maximum quantum efficiency of PSII, potential photochemical efficiency, the quantum efficiency of PSIIe0
Direction: decreasede0

Not reportedComparator

Verbatim

e0
“In a similar manner, high temperature also decreased signifi- cantly maximum quantum efficiency of PSII, potential photochemical efficiency, the quantum efficiency of PSII, photochemical quenching, the excitation capture efficiency of open centers, and increased non-photochemical quenching.”
✓ located verbatim in the source · abstract, characters 441–732

t0
“eggplant”
✓ located verbatim in the source · title, characters 66–74

Title

Brassinosteroids protect photosynthesis and antioxidant system of eggplant seedlings from high-temperature stress

Xuexia WuXinfeng YaoJianlin Chen; Zongwen ZhuHui; ZhangDingshi Zha; et al. 2014

Other claims from this paper (19)

Intervention effect High temperature inhibited plant growth in eggplant seedlings.
Intervention effect High temperature decreased chlorophyll content, net photo- synthetic rate, stomatal conductance in eggplant seedlings.
Intervention effect High temperature decreased transpiration rate in eggplant seedlings.
Intervention effect High temperature increased intercellular CO2 concentration in eggplant seedlings.
Intervention effect High temperature decreased photochemical quenching, the excitation capture efficiency of open centers.
Intervention effect High temperature increased non-photochemical quenching.
Intervention effect EBR at 0.05-0.2 lM promoted plant growth.
Intervention effect EBR at 0.05-0.2 lM alleviated high-tempera- ture-induced inhibition of photosynthesis.
Intervention effect High temperature markedly increased reactive oxygen species levels.
Intervention effect High temperature markedly increased lipid per- oxidation.
Intervention effect EBR inhibited the high-temperature increase in reactive oxygen species levels.
Intervention effect EBR inhibited the high-temperature increase in lipid per- oxidation.
Intervention effect High temperature significantly increased activities of antioxidative enzymes such as superoxide dismutase, peroxidase, catalase, more than EBR treatment.
Intervention effect High temperature significantly increased ascorbate peroxidase, more than EBR treatment.
Intervention effect High temperature significantly increased contents of ascorbic acid and reduced glutathione, more than EBR treatment.
Intervention effect EBR enhanced proline, soluble sugar and protein content under high-temperature stress.
Mechanism The authors attribute EBR protection of growth to increased photosynthetic efficiency and antioxidant enzymes.
Intervention effect 0.1 lM EBR gave the best ameliorative effect against high temperature.
Intervention effect 0.4 lM EBR had no significant effects.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Apparent quantum efficiency was 0.033.

Taxon: Sarracenia alataSarracenia alatat0
Outcome: apparent quantum efficiencye0
Value: 0.033e0

Verbatim

e0
“apparent quantum efficiency of 0.033”
✓ located verbatim in the source · abstract, characters 750–786

t0
“Sarracenia alata”
✓ located verbatim in the source · title, characters 72–88

Title

Whole leaf photosynthetic light response in a carnivorous plant species Sarracenia alata

K.A. HOPKINS; D.A. GRAVATT Photosynthetica 2019. doi:10.32615/ps.2019.119

Other claims from this paper (7)

Observation Light-saturated photosynthesis was 2.09 µmol(CO2) m-2 s-1.
Observation The light-saturation point was 315.14 µmol(photon) m-2 s-1.
Observation The light-compensation point was 40.25 µmol(photon) m-2 s-1.
Observation Dark respiration was -0.57 µmol(CO2) m-2 s-1.
Method / resource The large custom chamber achieved adequate mixing and sampling.
Observation S. alata photosynthesis resembled that of a shade-adapted C3 plant.
Observation S. alata measurements were consistent with published measurements of other Sarracenia species.

Intervention effectobservedreview summarynegativemeasured

Claim · model-written summary

Longer freezing lowered photosystem II quantum efficiency.

Outcome: quantum efficiency of photosystem IIe0
Direction: lowere0

Not reportedTaxonTreatmentComparator

Verbatim

e0
“lower quantum efficiency of photosystem II”
✓ located verbatim in the source · abstract, characters 1030–1072

Title

Survival Under Prolonged Cold: Duration of Stress, an Overlooked Factor in Freezing Tolerance Tests

Rajeev Arora Physiologia Plantarum 2025. doi:10.1111/ppl.70633

Other claims from this paper (4)

Intervention effect Longer freezing caused greater tissue injury than shorter freezing at the same temperature.
Intervention effect Longer freezing increased electrolyte leakage and water-soaking.
Intervention effect Longer freezing increased oxidative stress.
Recommendation The authors recommend including freezing duration in freezing tolerance tests.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt stress inhibited maximum PSII quantum efficiency.

Taxon: oranget0
Treatment: salt stresse0
Outcome: maximum quantum efficiency of PSIIe0
Direction: inhibitede0

Not reportedComparator

Verbatim

e0
“The maximum quantum efficiency of PSII was inhibited in citrus plants under salt stress”
✓ located verbatim in the source · abstract, characters 941–1028

t0
“orange”
✓ located verbatim in the source · title, characters 55–61

Title

Quantum efficiency of photosystem II and production of orange under salt stress and nitrogen fertilization

Jônatas R. M. de Sousa; Hans R. Gheyi; Marcos E. B. Brito; et al. Revista Brasileira de Engenharia Agrícola e Ambiental 2016. doi:10.1590/1807-1929/agriambi.v20n5p434-440

Other claims from this paper (2)

Observation Orange grafted onto Common Rangpur lime had higher yield potential.
Intervention effect Increased nitrogen did not reduce salinity harm to fruit production.

Observationauthor interpretationreview summarybasis n/a

Claim · model-written summary

The review proposes no reasonable prospect of increasing quantum efficiency.

Taxon: cropst0
Outcome: quantum efficiencye0

Verbatim

e0
“there is no reasonable possibility of increasing quantum efficiency”
✓ located verbatim in the source · abstract, characters 695–762

t0
“crops”
✓ located verbatim in the source · title, characters 50–55

Title

Manipulating photosynthetic metabolism to improve crops: an inversion of ends and means

David A. Walker Journal of Experimental Botany 1995. doi:10.1093/jxb/46.special_issue.1253

Other claims from this paper (2)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Apparent quantum efficiency was 0.046.

Taxon: Artemisia annua L.Artemisia annuat0
Outcome: apparent quantum efficiencye0
Value: 0.046e0

Verbatim

e0
“the apparent quantum efficiency was 0.046”
✓ located verbatim in the source · abstract, characters 672–713

t0
“Artemisia annua L.”
✓ located verbatim in the source · title, characters 42–60

Title

Study on Photosynthetic Characteristic of Artemisia annua L. in Reproductive Period

Sun Nian-xi Anhui nongye kexue 2008

Other claims from this paper (9)

Observation Daily leaf photosynthesis had two similar peaks.
Observation Maximum daily net photosynthetic rate was 22.60 μmol/(m2·s).
Observation Leaf light saturation point was about 800 μmol/(m2·s).
Observation Leaf light compensation point was 21.98 μmol/(m2·s).
Observation CO2 saturation point exceeded 1 600 μmol/mol.
Observation CO2 compensation point was 70.37 μmol/mol.
Observation Carboxylation efficiency was 0.053.
Observation Leaves showed tempered midday depression during reproduction.
Mechanism Authors infer green leaf photosynthesis may support flower and seed development and shaded environment adaptation.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The quantum yield of gross oxygen evolution was linearly related to PSII quantum efficiency.

Outcome: quantum yield of gross O2 evolutione0
Comparator: quantum efficiency of PSIIe0

Not reportedTaxonDirection

Verbatim

e0
“A linear relationship was obtained between the quantum yield of gross O2 evolution and the quantum efficiency of PSII.”
✓ located verbatim in the source · abstract, characters 1166–1284

Title

A comparison of CO2 and O2 exchange patterns and the relationship with chlorophyll fluorescence during photosynthesis in C3 and CAM plants

Kate Maxwell; Murray R. Badger; C. Barry Osmond Australian Journal of Plant Physiology 1998. doi:10.1071/pp97070

Other claims from this paper (6)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosystem II quantum efficiency decreased by 35%.

Outcome: Quantum efficiency of photosystem IIe0
Direction: decreasede0
Value: 35%e0

Not reportedTaxonTreatmentComparator

Verbatim

e0
“Quantum efficiency of photosystem II decreased by 35%”
✓ located verbatim in the source · abstract, characters 922–975

Title

Recovery response of soybean to waterlogging during the flowering and early-seed filling stages

Lekshmy V. Sankarapillai; Bikash Adhikari; Chamika A. Silva; et al. Discover Agriculture 2025. doi:10.1007/s44279-025-00373-7

Other claims from this paper (13)

Intervention effect Waterlogging reduced photosynthetic rates by 38%.
Intervention effect Waterlogging reduced stomatal conductance by over 35%.
Intervention effect Waterlogging reduced transpiration by over 35%.
Intervention effect Waterlogging reduced chlorophyll content by 42%.
Intervention effect Flavonol levels increased during waterlogging.
Observation Gas-exchange traits recovered 14 days after waterlogging.
Observation Chlorophyll and assimilation remained suppressed after waterlogging.
Association Leaf temperature correlated positively with seed yield during recovery.
Association Sustained high flavonol levels were associated with yield penalties.
Intervention effect Seed yield decreased by 34%.
Intervention effect Seed quality was compromised.
Method / resource Shortwave-infrared spectral signatures differentiated recovery responses.
Observation Three genotypes were identified as candidates with greater waterlogging tolerance and recovery.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Apparent quantum efficiency was maximal under water stress.

Taxon: SunflowerHelianthus annuust0
Treatment: water stresse0
Outcome: apparent quantum efficiencye0
Direction: maximume0

Not reportedComparator

Verbatim

e0
“apparent quantum efficiency under the condition of water stress in maximum”
✓ located verbatim in the source · abstract, characters 1624–1698

t0
“Sunflower”
✓ located verbatim in the source · title, characters 73–82

Title

Effects of Different Soil Moistures on Photosynthetic Characteristics of Sunflower

Yun Wen-li; Hou Qiong; Wang Hai-mei; et al. 应用气象学报 2014

Other claims from this paper (12)

Method / resource The rectangular hyperbola light-response model fitted sunflower photosynthesis with coefficients above 0.99.
Association Net photosynthetic rate rose rapidly then slowly with photosynthetically active radiation.
Intervention effect At the same radiation, wetter soil yielded greater net photosynthetic rate than suitable moisture or drought, with significant differences at higher radiation.
Intervention effect Maximum net photosynthetic rate increased with soil moisture.
Observation The sunflower light compensation point ranged from 30.51 to 107.98 μmol·m-2·s-1.
Observation The sunflower light saturation point ranged from 2260.8 to 3658.9 μmol·m-2·s-1.
Intervention effect Light saturation point increased with soil moisture.
Intervention effect Light compensation point decreased with soil moisture.
Intervention effect Suitable moisture broadened the usable light range and favored dry matter accumulation.
Intervention effect Drought stress narrowed the available light range.
Association Dark respiration rate declined with plant growth.
Intervention effect Drought stress lowered dark respiration rate across development stages.

“quantum efficiency”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics