Search claims · PlantClaims

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Net photosynthesis showed no obvious decrease as temperature rose.

Taxon: RiceOryza sativat0
Treatment: temperature risinge0
Outcome: net photosynthesise0
Direction: no obvious decreasee0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 88–92

e0
“no obvious decrease pattern in net photosynthesis appeared along with the temperature rising”
✓ located verbatim in the source · abstract, characters 407–499

Title

Influence of High Temperature Stress on Net Photosynthesis, Dry Matter Partitioning and Rice Grain Yield at Flowering and Grain Filling Stages

Guo-hua LÜ; Yong-feng WU; Wen-bo BAI; et al. Journal of Integrative Agriculture 2013. doi:10.1016/s2095-3119(13)60278-6

Other claims from this paper (6)

Intervention effect High temperature changed dry matter allocation among leaf, sheath, culm and panicle.
Intervention effect Panicle dry weight decreased under high temperature stress.
Intervention effect Straw share of aboveground dry weight rose 6–34% from CK.
Intervention effect Grain yield fell significantly by 15 to 73% across heat treatments.
Intervention effect Heat at flowering affected grain yield more seriously than heat at grain filling.
Intervention effect High temperature stress negatively affected harvest index.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in acetylene reduction correlated with decreases in photosynthesis and transpiration.

Taxon: SoybeanGlycine maxt0
Outcome: photosynthesis and transpiratione0
Direction: decreasese0
Comparator: the decreasee0

Verbatim

e0
“the decrease was correlated with decreases in photosynthesis and transpiration”
✓ located verbatim in the source · abstract, characters 1187–1265

t0
“Soybean”
✓ located verbatim in the source · title, characters 68–75

Title

Acetylene Reduction (Nitrogen Fixation) and Metabolic Activities of Soybean Having Various Leaf and Nodule Water Potentials

Chi-Ying Huang; John S. Boyer; Larry N. Vanderhoef PLANT PHYSIOLOGY 1975. doi:10.1104/pp.56.2.222

Other claims from this paper (12)

Method / resource The apparatus measured nodule acetylene reduction and shoot gas exchange simultaneously.
Observation Acetylene reduction was linear for at least five hours except initially.
Method / resource Endogenous ethylene did not affect measurements.
Method / resource Repeated acetylene reduction measurements had no apparent aftereffects.
Intervention effect Acetylene reduction was undetectable in flooded soil and at severe desiccation.
Intervention effect Acetylene reduction was undetectable at a soil water potential of -19.5 bars.
Observation Acetylene reduction had a sharp optimum between flooded and severely dry soil.
Intervention effect Removing soil eliminated flooding inhibition.
Mechanism Gas exchange restriction was proposed to explain flooding inhibition above -2 bars.
Association Acetylene reduction decreased with further soil drying.
Observation Dark respiration was inhibited less than the other measured processes.
Mechanism Photosynthesis, transpiration, or direct nodule effects were proposed to account for nitrogen fixation inhibition below -2 bars.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The decrease in grain weight per ear was not proportional to the decrease in photosynthesis.

Taxon: bread wheatTriticum aestivumt0
Treatment: shading treatmentse1
Outcome: grain weight per eare0
Direction: decreasee0
Qualifier: decrease in photosynthesise0

Verbatim

t0
“bread wheat”
✓ located verbatim in the source · title, characters 115–126

e0
“The decrease in grain weight per ear plotted against the decrease in photosynthesis (evaluated through ETR or An) did not fit a 1 : 1 relationship.”
✓ located verbatim in the source · abstract, characters 1855–2002

e1
“in shading treatments”
✓ located verbatim in the source · abstract, characters 1786–1807

Title

Methodological aspects and impact on grain weight of source reduction through shade meshes during grain filling of bread wheat

Maria L. Maydup; Mariana Antonietta; Nicolás Rouillet; et al. Crop and Pasture Science 2020. doi:10.1071/cp18565

Other claims from this paper (10)

Intervention effect Midday ETR and carbon assimilation fell under shade, but less than proportionally to mesh light transmittance.
Observation Mesh-induced reductions in transmittance and photosynthesis were greater in morning and afternoon than at midday.
Association Control wheat midday ETR declined progressively with grain-filling age relative to shade treatments.
Observation Initial photosynthesis differences between shade treatments diminished during grain filling.
Intervention effect Shade lowered air temperature, especially at midday.
Intervention effect Severe shade produced the lowest measured canopy temperature.
Intervention effect Shade delayed senescence at 19 days after anthesis.
Intervention effect Shade reduced grain weight per ear, mainly at 50% and 10% transmittance.
Observation Stem dry matter retranslocation increased under shade.
Recommendation Using light attenuation alone to estimate source reduction may bias estimates.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The photosynthesis decrease was unrelated to increased glucose and fructose.

Taxon: treese0 t0
Compound: glucose and fructosee0 t0
Outcome: photosynthesise0 t0
Direction: unrelatede0 t0

Not reportedComparator

Verbatim

e0
“the decrease in photosynthesis was unrelated to the increase in glucose and fructose content.”
✓ located verbatim in the source · abstract, characters 1466–1559

t0
“trees”
✓ located verbatim in the source · title, characters 123–128

Title

Carbohydrate regulation of photosynthesis and respiration from branch girdling in four species of wet tropical rain forest trees

S. Asao; M. G. Ryan Tree Physiology 2015. doi:10.1093/treephys/tpv025

Other claims from this paper (9)

Intervention effect Girdling intensity caused no consistent or strong leaf carbohydrate response.
Intervention effect Glucose and fructose increased slightly by 3.4% per quarter girdle in all species.
Intervention effect Total carbon content increased 5.4% per quarter girdle in one species.
Intervention effect Leaf mass per area increased 5.5% per quarter girdle in one species.
Intervention effect Starch did not change with girdling.
Intervention effect Full girdling lowered photosynthesis in three of four species by 59-69%.
Intervention effect Girdling did not affect respiration.
Intervention effect Three-quarter phloem removal did not alter carbohydrates, photosynthesis, or respiration in three species.
Recommendation Authors recommend avoiding girdling for carbohydrate-regulation studies.

Associationauthor interpretationoriginal resultnegativesimulated

Claim · model-written summary

The authors suggest that factors increasing transpiration without directly affecting photosynthesis decrease photosynthesis through water stress.

Taxon: vascular plante0
Treatment: Factors increasing transpiration without directly affecting photosynthesise1
Outcome: photosynthesise1
Direction: decreasee1
Qualifier: because of the effect on water stresse1

Verbatim

e0
“Total seasonal vascular plant CO_2 uptake ranged from 400—627 g CO_2 m_G ( —2)”
✓ located verbatim in the source · abstract, characters 1191–1269

e1
“Factors increasing transpiration without directly affecting photosynthesis tend to decrease photosynthesis because of the effect on water stress”
✓ located verbatim in the source · abstract, characters 1851–1995

Title

A Model of Stand Photosynthesis for the Wet Meadow Tundra at Barrow, Alaska

Philip C. Miller; Wayne A. Stoner; Larry L. Tieszen Ecology 1976. doi:10.2307/1936428

Other claims from this paper (15)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthesis tended to decrease under N deficiency but contributed little to reduced carbon gain.

Taxon: grapevineVitist0
Treatment: N deficiencye0
Outcome: photosynthesis ratee0
Direction: decreasee0

Verbatim

e0
“photosynthesis rate tended to decrease under N deficiency over the season, it only poorly contributed to the reduction in C gain”
✓ located verbatim in the source · abstract, characters 2580–2708

t0
“grapevine”
✓ located verbatim in the source · title, characters 21–30

Title

Gradual responses of grapevine yield components and carbon status to nitrogen supply

Sylvain Vrignon-Brenas; Metay Aurélie; Leporatti Romain; et al. OENO One 2019. doi:10.20870/oeno-one.2019.53.2.2431

Other claims from this paper (13)

Intervention effect Under low nitrogen, SPAD declined from 31 to 16 in the first year.
Intervention effect In year two, SPAD was 40 at 160N and 19 at 0N after budburst.
Observation SPAD differences among nitrogen treatments persisted through 2018 harvest.
Intervention effect Berry number per inflorescence ranged from 180 at 80N to 34 at 0N.
Intervention effect Individual berry dry matter increased from 0.13 at 160N to 0.41 g at 0N.
Association Lower N reduced carbon gain mainly through leaf area reduction before flowering.
Association Whole-plant carbon growth fell with declining nitrogen status by -1.13% at harvest.
Association Shoot dry matter was inhibited before veraison by -1.81%.
Association Berry dry matter was lower by -0.80% at harvest.
Association Trunk dry matter was lower by -0.42% at harvest.
Association Root dry matter was lower by -0.84% at harvest.
Association Lower root starch reserves were associated with root dry matter reduction at harvest.
Intervention effect Starch reserves tended to be higher under organic than mineral nitrogen supply.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthesis decrease under elevated CO2 was associated with lower leaf Rubisco.

Taxon: riceOryza sativae1
Gene: Rubiscoe0
Outcome: decrease of photosynthesise0
Direction: decreasee0
Qualifier: elevated [CO2]e0

Verbatim

e0
“The decrease of photosynthesis by elevated [CO2] of plants was associated with decreased leaf Rubisco content and N content.”
✓ located verbatim in the source · abstract, characters 804–928

e1
“rice (Oryza sativa L.)”
✓ located verbatim in the source · abstract, characters 195–217

Title

Effect of panicle removal on photosynthetic acclimation under elevated CO₂ in rice

H. Shimono; K. Suzuki; K. Aoki; et al. Photosynthetica 2010. doi:10.1007/s11099-010-0070-z

Other claims from this paper (7)

Intervention effect Panicle removal alleviated decline in green leaf area, chlorophyll and Rubisco after heading.
Intervention effect Elevated CO2 decreased photosynthesis in panicle-removed rice.
Association The CO2 by panicle-removal interaction for photosynthesis was not significant.
Association Photosynthesis decrease under elevated CO2 was associated with lower leaf nitrogen.
Intervention effect Panicle removal increased leaf glucose.
Intervention effect Elevated CO2 increased leaf glucose.
Intervention effect Sink limitation improved leaf nitrogen status.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Photosynthesis decrease under elevated CO2 was associated with lower leaf nitrogen.

Taxon: riceOryza sativae1
Compound: Ne0
Outcome: decrease of photosynthesise0
Direction: decreasee0
Qualifier: elevated [CO2]e0

Verbatim

e0
“The decrease of photosynthesis by elevated [CO2] of plants was associated with decreased leaf Rubisco content and N content.”
✓ located verbatim in the source · abstract, characters 804–928

e1
“rice (Oryza sativa L.)”
✓ located verbatim in the source · abstract, characters 195–217

Title

Effect of panicle removal on photosynthetic acclimation under elevated CO₂ in rice

H. Shimono; K. Suzuki; K. Aoki; et al. Photosynthetica 2010. doi:10.1007/s11099-010-0070-z

Other claims from this paper (7)

Intervention effect Panicle removal alleviated decline in green leaf area, chlorophyll and Rubisco after heading.
Intervention effect Elevated CO2 decreased photosynthesis in panicle-removed rice.
Association The CO2 by panicle-removal interaction for photosynthesis was not significant.
Association Photosynthesis decrease under elevated CO2 was associated with lower leaf Rubisco.
Intervention effect Panicle removal increased leaf glucose.
Intervention effect Elevated CO2 increased leaf glucose.
Intervention effect Sink limitation improved leaf nitrogen status.

Associationobservedoriginal resultmeasured

Claim · model-written summary

The initial decline in soybean leaf photosynthesis is correlated with a decrease in leaf transpiration.

Taxon: soybeanGlycine maxe1
Organ / stage: leafe3
Outcome: leaf transpiratione3
Direction: decreasee3
Qualifier: initial decline in photosynthesise3

Verbatim

e3
“The initial decline in photosynthesis is correlated with a decrease in leaf transpiration”
✓ located verbatim in the source · abstract, characters 321–410

e1
“Depodding soybean (Glycine max [L] Merr. cv Wye) plants”
✓ located verbatim in the source · abstract, characters 0–55

Title

Effect of Pod Removal on Leaf Senescence in Soybeans

Vernon A. Wittenbach PLANT PHYSIOLOGY 1982. doi:10.1104/pp.70.5.1544

Other claims from this paper (7)

Intervention effect Depodding soybean plants inhibited leaf senescence, indicated by retention of leaf chlorophyll and soluble protein.
Intervention effect Depodding soybean leaves showed earlier decline of photosynthesis and Rubisco levels than podded controls.
Association The later decline in soybean leaf function is associated with the loss of Rubisco.
Intervention effect Total soluble protein remained high in depodded soybean plants.
Intervention effect Several polypeptides, three in particular, increased in depodded soybean leaves.
Intervention effect Depodding is interpreted to change the function of the soybean leaf rather than only delay its decline.
Association Depodding changed specific leaf weight and starch content, suggesting that the leaf may be changing to a storage organ.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in HvIRT1 transcripts corresponded to decreased photosynthesis rate and biomass accumulation.

Taxon: barleyHordeum vulgaree2
Gene: HvIRT1transcriptse1
Outcome: photosynthesis rate and biomass accumulatione0
Direction: decreasee0

Verbatim

e0
“that corresponds to a decrease of photosynthesis rate and biomass accumulation.”
✓ located verbatim in the source · abstract, characters 992–1071

e1
“amount of HvIRT1transcripts in leaves”
✓ located verbatim in the source · abstract, characters 953–990

e2
“barley (Hordeum vulgare ‘Nur’)”
✓ located verbatim in the source · abstract, characters 376–406

Title

Expression of IRT1 gene in barley seedlings under zinc deficiency at optimal and low temperatures

Natalia KAZNINA; Natalia REPKINA; Yulia BATOVA; et al. Acta agriculturae Slovenica 2021. doi:10.14720/aas.2021.117.4.1998

Other claims from this paper (5)

“decrease of the photosynthesis”

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