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“decrease of the photosynthesis”

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Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Mild RDI did not significantly decrease net photosynthetic rate or stomatal conductance.

Taxon: island cottont0
Treatment: mild RDI( W1)e0
Outcome: net photosynthetic rate( Pn) and stomatal conductance( Gs)e0
Direction: did not significantly decreasee0

Not reportedComparator

Verbatim

e0
“The net photosynthetic rate( Pn) and stomatal conductance( Gs) did not significantly decrease by the mild RDI( W1)”
✓ located verbatim in the source · abstract, characters 700–814

t0
“island cotton”
✓ located verbatim in the source · title, characters 142–155

Title

Effect of regulated deficit irrigation on photosynthesis and chlorophyll fluorescence characteristics in flowering and boll-forming stages of island cotton

Guo Ren-son Ganhan diqu nongye yanjiu 2015

Other claims from this paper (9)

Observation Island cotton photosynthesis peaked 30 days after flowering.
Intervention effect Increasing deficit irrigation significantly decreased transpiration rate at 30 days after flowering.
Intervention effect Moderate and severe RDI significantly reduced net photosynthetic rate and stomatal conductance.
Observation From 10 to 30 days after flowering, actual light quantum yield and photochemical quenching increased significantly.
Intervention effect Increasing RDI significantly decreased maximum photochemical efficiency and actual light quantum yield.
Intervention effect After 30 days, mild RDI did not significantly decrease four fluorescence measures versus normal irrigation.
Intervention effect After 30 days, moderate and severe RDI significantly decreased fluorescence measures.
Recommendation Authors advised against RDI during the first 30 days after flowering.
Recommendation Authors advised mild RDI after 30 days.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Water stress caused only a slight, non-significant decrease of carbohydrate export from the fed leaves.

Taxon: Vitis viniferaVitis viniferat0
Treatment: Water stresse4
Outcome: carbohydrate export from the fed leavese5
Direction: decreasee5

Not reportedComparator

Verbatim

t0
“Vitis vinifera”
✓ located verbatim in the source · title, characters 73–87

e4
“Water stress caused a significant reduction of leaf water potential, photosynthesis and stomatal conductance”
✓ located verbatim in the source · abstract, characters 970–1078

e5
“but caused only a slight, non-significant, decrease of carbohydrate export from the fed leaves”
✓ located verbatim in the source · abstract, characters 1080–1174

Title

Effect of water stress on partitioning of 14C-labelled photosynthates in Vitis vinifera

Josefina Bota; Oleg Stasyk; Jaume Flexas; et al. Functional Plant Biology 2004. doi:10.1071/fp03262

Other claims from this paper (9)

Intervention effect The presence of fruits strongly stimulated 14C export from the fed leaf compared with fruitless plants.
Intervention effect The presence of fruits changed the distribution pattern of assimilates compared with fruitless plants.
Observation Fruits imported 70–80% of the total 14C exported while representing only 25% of total plant dry matter.
Association The strength of fruits as carbon sinks was independent of sink size.
Intervention effect Water stress significantly reduced leaf water potential, photosynthesis and stomatal conductance.
Intervention effect Water stress did not affect the distribution pattern of 14C in Tempranillo, except in some minor fractions.
Intervention effect Water stress did not change the 14C distribution into different fruit components.
Intervention effect In Alfonso Lavallée, water stress significantly reduced photosynthate export.
Intervention effect In Alfonso Lavallée, water stress altered the photosynthate distribution pattern.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

After 30 days, mild RDI did not significantly decrease four fluorescence measures versus normal irrigation.

Taxon: island cottont0
Treatment: W1 treatmente0
Outcome: Fv / Fm,ΦPSⅡ,q P,NPQe0
Direction: did not significantly decreasee0
Comparator: CKe0

Verbatim

e0
“After flowering 30 days,the W1 treatment compared with CK the Fv / Fm,ΦPSⅡ,q P,NPQ did not significantly decrease”
✓ located verbatim in the source · abstract, characters 1161–1274

t0
“island cotton”
✓ located verbatim in the source · title, characters 142–155

Title

Effect of regulated deficit irrigation on photosynthesis and chlorophyll fluorescence characteristics in flowering and boll-forming stages of island cotton

Guo Ren-son Ganhan diqu nongye yanjiu 2015

Other claims from this paper (9)

Observation Island cotton photosynthesis peaked 30 days after flowering.
Intervention effect Increasing deficit irrigation significantly decreased transpiration rate at 30 days after flowering.
Intervention effect Mild RDI did not significantly decrease net photosynthetic rate or stomatal conductance.
Intervention effect Moderate and severe RDI significantly reduced net photosynthetic rate and stomatal conductance.
Observation From 10 to 30 days after flowering, actual light quantum yield and photochemical quenching increased significantly.
Intervention effect Increasing RDI significantly decreased maximum photochemical efficiency and actual light quantum yield.
Intervention effect After 30 days, moderate and severe RDI significantly decreased fluorescence measures.
Recommendation Authors advised against RDI during the first 30 days after flowering.
Recommendation Authors advised mild RDI after 30 days.

Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

The diel differences in latent heat flux did not establish a statistically significant or biologically relevant decrease in seasonal water-use of the intercrop.

Taxon: maize and soybeanGlycine max Zea mayst0
Outcome: seasonal water‐usee1
Qualifier: statistically significant or biologically relevant decreasee1

Verbatim

t0
“intercropped maize and soybean”
✓ located verbatim in the source · title, characters 56–86

e1
“the diel differences in λET fluxes were not sufficient to establish a statistically significant or biologically relevant decrease in seasonal water‐use”
✓ located after whitespace/quote normalisation · abstract, characters 1394–1546

Title

Photosynthesis, yield, energy balance, and water‐use of intercropped maize and soybean

Elena A. Pelech; Brendan C. S. Alexander; Carl J. Bernacchi Plant Direct 2021. doi:10.1002/pld3.365

Other claims from this paper (10)

Intervention effect Photosynthetic capacity and grain yield of maize were conserved in the intercrop.
Intervention effect Competitive shading by maize reduced light for intercropped soybean to 80%–90% of incident light at canopy closure.
Intervention effect Intercropped soybean had a 94% decrease in grain yield compared with soybean monoculture.
Intervention effect The additive intercrop increased total grain yield per unit area by 11% ± 6%.
Intervention effect Compared with maize monoculture, the intercrop had higher latent heat fluxes at night.
Intervention effect The intercrop had lower daytime latent heat flux than maize monoculture.
Intervention effect The intercrop canopy surface temperature was about 0.25 °C warmer than in maize monoculture.
Mechanism The warmer intercrop canopy partitioned more energy to sensible heat flux.
Observation The intercrop land-use efficiency gain did not establish an increase in seasonal water-use efficiency.
Recommendation Intercropping high-performing maize and soybean cultivars in a dense configuration without negative impact may improve yield and water-use efficiency benefits.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

UV-B did not significantly affect net photosynthesis or Fv/Fm in maize grown on sufficient nutrients.

Taxon: maizeZea mayst0
Treatment: UV-B treatmentse4
Outcome: P N and Fv/Fme4
Direction: did not significantly affecte4
Qualifier: in plants grown on sufficient nutrientse4

Not reportedComparator

Verbatim

t0
“near-isogenic maize lines”
✓ located verbatim in the source · title, characters 94–119

e4
“The UV-B treatments did not significantly affect P N and Fv/Fm in plants grown on sufficient nutrients, except in the low flavonoid lines dta and hi27 in which P N and Fv/Fm decreased by ∼15 %”
✓ located verbatim in the source · abstract, characters 1257–1449

Title

Ambient levels of UV-B in Hawaii combined with nutrient deficiency decrease photosynthesis in near-isogenic maize lines varying in leaf flavonoids: Flavonoids decrease photoinhibition in plants exposed to UV-B

T. S. L. Lau; E. Eno; G. Goldstein; et al. Photosynthetica 2006. doi:10.1007/s11099-006-0042-5

Other claims from this paper (13)

Observation In adequately fertilized plants, lines b and lc had higher flavonoid and anthocyanin contents than lines hi27 and dta.
Intervention effect UV-B induced accumulation of foliar flavonoids in maize lines hi27 and b.
Intervention effect UV-B did not induce accumulation of foliar flavonoids in the low flavonoid line dta or the high flavonoid line lc.
Intervention effect Nutrient deficiency decreased foliar flavonoid contents by 30-40%.
Intervention effect Nutrient deficiency decreased foliar anthocyanin contents by 40-50%.
Intervention effect Nutrient deficiency decreased Chl a content by 30%.
Intervention effect Nutrient deficiency decreased Chl b content by 70%.
Intervention effect In low flavonoid lines dta and hi27, UV-B decreased net photosynthesis and Fv/Fm by about 15% on sufficient nutrients.
Intervention effect UV-B decreased net photosynthesis, Fv/Fm and stomatal conductance by 20-30% in all lines when grown on low nutrients.
Observation The decrease in Fv/Fm was 10% less in the higher flavonoid lines b and lc.
Observation The photosynthetic apparatus of maize readily tolerated ambient UV-B in the tropics when plants were adequately fertilized.
Intervention effect Ambient UV-B combined with nutrient deficiency significantly reduced photosynthesis in maize.
Mechanism Nutrient deficiency increased the susceptibility of maize to UV-B-induced photoinhibition, in part by decreasing photoprotective compounds.

Associationauthor interpretationoriginal resultnot significant (as stated)measured

Claim · model-written summary

Genotypes without a significant photosynthetic decrease may not have reached technical maturity.

Taxon: hopst0
Organ / stage: technical maturitye0
Outcome: technical maturitye0

Not reportedDirection

Verbatim

e0
“As regards the genotypes for which photosynthesis did not reduce significantly, it may be assumed that such plants had not reached technical maturity.”
✓ located verbatim in the source · abstract, characters 600–750

t0
“hops”
✓ located verbatim in the source · title, characters 49–53

Title

Photosynthetic activity of selected genotypes of hops (Humulus lupulus L.) in critical periods for yield formation

J. Pokorný; J. Pulkrábek; P. Štranc; et al. Plant Soil and Environment 2011. doi:10.17221/30/2011-pse

Other claims from this paper (7)

Observation Photosynthetic activity rose at flowering in 2007.
Observation Photosynthetic activity rose at flowering in 2008.
Observation Photosynthetic activity rose at flowering in 2009.
Association Late ontogenetic photosynthesis trends indicated genotype maturity.
Observation New high-yielding varieties had very good photosynthetic activity.
Observation Varieties with Saaz origins had higher bitter substance content.
Observation Three new hop forms yielded 2.35 to 3.12 t/ha in 2008 and 2009.

Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

At high nitrogen, elevated carbon dioxide did not significantly decrease ryegrass carboxylation capacity or proteins.

Taxon: Perennial RyegrassLolium perennet0
Treatment: high Ne0
Outcome: carboxylation capacity or proteinse0
Direction: no significant decreasese0

Not reportedMaterialGeneCompoundOrgan / stageInteractorComparatorSettingValueQualifier

Verbatim

e0
“In high N there were no significant decreases in carboxylation capacity or proteins”
✓ located verbatim in the source · abstract, characters 1109–1192

t0
“Perennial Ryegrass”
✓ located verbatim in the source · title, characters 130–148

Title

Acclimation of Photosynthesis to Elevated CO2under Low-Nitrogen Nutrition Is Affected by the Capacity for Assimilate Utilization. Perennial Ryegrass under Free-Air CO2 Enrichment

Alistair Rogers; Bernt U. Fischer; Jonathan Bryant; et al. PLANT PHYSIOLOGY 1998. doi:10.1104/pp.118.2.683

Other claims from this paper (7)

Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Leaf nitrogen content decreased with increasing CO2 concentration, although the decrease was not statistically significant at maturity.

Taxon: RiceOryza sativat0
Treatment: CO 2 concentratione0
Outcome: Leaf nitrogen contente0
Direction: decreasede0
Qualifier: not statistically significant at maturitye0

Not reportedComparator

Verbatim

e0
“Leaf nitrogen content decreased with the increase of CO 2 concentration although it was not statistically significant at maturity”
✓ located verbatim in the source · abstract, characters 1019–1148

t0
“Rice”
✓ located verbatim in the source · title, characters 90–94

Title

Effects of Elevated CO 2 and High Temperature on Single Leaf and Canopy Photosynthesis of Rice

Lin Wei Zhiwu xuebao 1999

Other claims from this paper (15)

Intervention effect High CO2 and temperature had a synergetic stimulating effect on single leaf photosynthetic rate until grain filling.
Intervention effect Leaf photosynthesis was stimulated by high CO2.
Intervention effect The stimulation of leaf photosynthesis by CO2 was decreased by higher temperature at grain filling stage.
Observation The stimulation of canopy photosynthesis by elevated CO2 leveled off with time.
Observation Stimulation at canopy level disappeared by grain filling stage in both temperature treatments.
Intervention effect Green leaf area index was not significantly affected by CO2 at maturity.
Intervention effect Green leaf area index was greater in plants grown at higher temperature.
Observation Canopy respiration rate increased at flowering stage.
Observation Shading effect caused by leaf development reached maximum at flowering stage.
Observation CO2 stimulation of photosynthesis was greater in single leaf than in canopy.
Intervention effect Enhanced CO2 significantly increased biomass of rice stems and panicles.
Mechanism Increase in canopy respiration is asserted to have caused diminishment of CO2 stimulation in canopy net photosynthesis.
Observation Leaf nitrogen in the canopy decreased with CO2 concentration.
Mechanism The decrease in canopy leaf nitrogen may eventually hasten the CO2 stimulation decline in canopy photosynthesis.
Mechanism Early senescence of canopy leaves in high CO2 is suggested as a possible additional cause.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Two tree species showed no significant change in photosynthesis under long-term testing conditions.

Taxon: two tree speciese7
Treatment: long-term testing conditionse7
Outcome: photosynthesise7
Direction: no_changeinferrede7

Not reportedComparator

Verbatim

e0
“We studied the exchange of VOCs in relation to CO2 exchange and transpiration of 8 common tree species from the Amazonian floodplain forest grown up from seeds”
✓ located verbatim in the source · abstract, characters 250–409

e7
“However, even under long-term testing conditions, two tree species did not show any significant decrease or increase in photosynthesis”
✓ located verbatim in the source · abstract, characters 1430–1564

Title

Root anoxia effects on physiology and emissions of volatile organic compounds (VOC) under short-and long-term inundation of trees from Amazonian floodplains

Araceli Bracho-Nunez; Nina Maria Knothe; Wallace R Costa; et al. SpringerPlus 2012. doi:10.1186/2193-1801-1-9

Other claims from this paper (8)

Intervention effect Short-term root anoxia after inundation led to emissions of ethanol and acetaldehyde in the tree species studied.
Intervention effect Vatairea guianensis, a less anoxia adapted species, emitted ethanol and acetaldehyde at the beginning of root anoxia after inundation.
Intervention effect Hevea spruceana did not emit ethanol or acetaldehyde at the beginning of root anoxia after inundation.
Intervention effect Long-term flooding of the root system did not result in any emission of ethanol or acetaldehyde, in contrast to short-term inundation.
Association Emission of other VOCs such as isoprenoids, acetone and methanol showed distinct behavior by floodplain origin (igapó or várzea).
Intervention effect Isoprenoid emissions increased during some days of short-term flooding.
Intervention effect After a long period of waterlogging, VOC emissions decreased considerably.
Intervention effect After a long period of waterlogging, photosynthesis, transpiration and stomatal conductance decreased.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Three days of recovery did not significantly reduce leaf salt concentrations.

Taxon: Jatropha curcas (L.)Jatropha curcase7
Treatment: recovery treatment for 3de0
Outcome: leaf salt concentrationse0
Direction: did not significantly decreasee0

Not reportedComparator

Verbatim

e7
“Jatropha curcas (L.) young plants”
✓ located verbatim in the source · abstract, characters 173–206

e0
“The recovery treatment for 3d did not significantly decrease the leaf salt concentrations”
✓ located verbatim in the source · abstract, characters 1145–1234

Title

Salt stress induced damages on the photosynthesis of physic nut young plants

Evandro Nascimento da Silva; Rafael Vasconcelos Ribeiro; Sérgio Luiz Ferreira-Silva; et al. Scientia Agricola 2011. doi:10.1590/s0103-90162011000100010

Other claims from this paper (9)

Observation After seven days of salt exposure, leaf sodium and chloride had not reached toxic levels.
Mechanism The authors inferred osmotic effects predominated over ionic effects after seven days.
Intervention effect Salt stress reduced leaf gas exchange, including CO2 fixation, stomatal conductance and transpiration.
Intervention effect Salt stress did not change photosystem II photochemical efficiency after seven days.
Observation After 14 days, sodium and chloride ion levels reached toxic leaf concentrations.
Intervention effect After 14 days, leaf gas exchange was strongly impaired, probably from ionic toxicity.
Intervention effect After 14 days, leaf photochemistry was strongly impaired, probably from ionic toxicity.
Intervention effect Three days of recovery showed no improvement in photosynthetic performance.
Mechanism The authors conclude young physic nut is sensitive to high NaCl salinity with ionic accumulation and photosynthetic damage.

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“decrease of the photosynthesis”

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