Search claims · PlantClaims

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Photosynthesis of the grassland showed a significant decrease during each growing season.

Taxon: species-rich semi-natural grasslande2
Outcome: photosynthesise3
Direction: decreasee3
Setting: Central Swedene2

Verbatim

e3
“Although photosynthesis showed a significant decrease during each growing season”
✓ located verbatim in the source · abstract, characters 698–778

e2
“in a species-rich semi-natural grassland with a long history of grazing in Central Sweden”
✓ located verbatim in the source · abstract, characters 156–245

Title

Photosynthesis and biomass under elevated CO2 in a semi-natural grassland - a six-years' field study

Roger Pettersson; Erik Sindhöj Science Access 2001. doi:10.1071/sa0403635

Other claims from this paper (9)

Intervention effect Elevated CO2 stimulated light-saturated leaf-level photosynthesis of Taraxacum vulgare.
Intervention effect Elevated CO2 stimulated light-saturated leaf-level photosynthesis of Plantago media.
Intervention effect The CO2 effect on photosynthesis showed no trend over the years.
Intervention effect The CO2 effect on leaf-level photosynthesis was larger in dry and extremely dry summers than in rainy summers.
Intervention effect Elevated CO2 stimulated above-ground production in 1995-1997.
Intervention effect Elevated CO2 did not change above-ground production in 1998-2000.
Intervention effect Elevated CO2 stimulated root production during each growing season.
Mechanism The lack of above-ground production response may be explained by unusual weather circumstances.
Mechanism Increasing nutrient limitation might also be involved in the lack of above-ground production response.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Cadmium-associated growth inhibition accompanied a significant decrease in net photosynthesis.

Taxon: B. schmidtiiBetula schmidtiie0
Treatment: Cd treatmente1
Outcome: net photosynthesis measured as $CO_2$ assimilatione0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“the growth inhibition of B. schmidtii seedlings was accompanied by a significant decrease in net photosynthesis measured as $CO_2$ assimilation”
✓ located verbatim in the source · abstract, characters 1108–1251

e1
“Cd treatment levels of three families”
✓ located verbatim in the source · abstract, characters 798–835

Title

Differences in Growth and Photosynthesis among Three Half-sib Families of Betula schmidtii in Response to Cd Treatment

;;;; The Korean Journal of Ecology 2004. doi:10.5141/jefb.2004.27.3.147

Other claims from this paper (4)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Hypoxia significantly reduced photosynthetic pigments and photosynthesis in muskmelon seedlings.

Taxon: muskmelon seedlingsCucumis melot0
Treatment: Hypoxia stresse0
Outcome: photosynthetic pigment contentse0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“muskmelon seedlings”
✓ located verbatim in the source · title, characters 101–120

e0
“Hypoxia stress induced a significant decrease of photosynthetic pigment contents, resulting in the decrease of photosynthesis.”
✓ located verbatim in the source · abstract, characters 253–379

Title

[Effects of gamma-aminobutyric acid on the photosynthesis and chlorophyll fluorescence parameters of muskmelon seedlings under hypoxia stress].

Qing-ping Xia; Hong-bo Gao; Jing-rui Li PubMed 2011

Other claims from this paper (7)

Intervention effect GABA increased photosynthetic pigment contents and photosynthetic rates under hypoxic and normal conditions.
Intervention effect GABA increased stomatal conductance, intercellular CO2 concentration and carboxylation efficiency.
Intervention effect GABA increased four PS II fluorescence and electron transport measures.
Intervention effect GABA increased quantum yield of PS II electron transport.
Intervention effect GABA decreased stomatal limitation, minimal fluorescence and non-photochemical quenching.
Observation GABA alleviated photosynthetic impairment more under hypoxia.
Intervention effect Adding VGB diminished the alleviation by GABA under hypoxia.

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

The highest respiration in July was associated with a significant decrease in net photosynthesis (62 % of the maximum).

Taxon: Mediterranean evergreen speciest0
Outcome: P N decreasee3
Direction: decreasee3
Value: 62 %e3
Comparator: maximume3
Setting: Julye4

Verbatim

t0
“Mediterranean evergreen species”
✓ located verbatim in the source · title, characters 64–95

e2
“The highest R (1.89±0.30 µmol m-2 s-1, mean of the species)”
✓ located verbatim in the source · abstract, characters 530–589

e3
“associated to a significant P N decrease (62 % of the maximum, mean value of the species)”
✓ located verbatim in the source · abstract, characters 591–680

e4
“was measured in July”
✓ located verbatim in the source · abstract, characters 682–702

Title

Relationship between net photosynthesis and leaf respiration in Mediterranean evergreen species

L. Gratani; L. Varone; R. Catoni Photosynthetica 2008. doi:10.1007/s11099-008-0095-8

Other claims from this paper (4)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

In rapeseed cv. Talaye, plants treated only with NaCl stress showed a significant decrease in growth parameters and photosynthesis rate compared with the control.

Taxon: rapeseede0
Material: cv. Talayee0
Treatment: NaCl stresse2
Outcome: growth parameters and photosynthesis ratee1
Direction: decreasee1
Comparator: controle3

Verbatim

e0
“rapeseed (Brassica napus L. cv. Talaye)”
✓ located verbatim in the source · abstract, characters 392–431

e1
“a significant decrease in growth parameters and photosynthesis rate”
✓ located verbatim in the source · abstract, characters 570–637

e2
“Plants treated only with NaCl stress”
✓ located verbatim in the source · abstract, characters 526–562

e3
“when compared with the control”
✓ located verbatim in the source · abstract, characters 809–839

Title

Effect of exogenous application of methyl jasmonate on physiological and biochemical characteristics of Brassica napus L. cv. Talaye under salinity stress

F.I. Ahmadi; K. Karimi; P.C. Struik South African Journal of Botany 2017. doi:10.1016/j.sajb.2017.11.018

Other claims from this paper (4)

Mechanismauthor interpretationoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Reduced photosynthesis was attributed to decreased stomatal conductance.

Taxon: common beanPhaseolus vulgarise1
Outcome: rate of photosythesise0
Direction: Decreasee0
Qualifier: stomatal conductancee0

Verbatim

e0
“Decrease in the rate of photosythesis was attributed to significant decrease in stomatal conductance”
✓ located verbatim in the source · abstract, characters 1166–1266

e1
“common bean than in chick pea”
✓ located verbatim in the source · abstract, characters 1326–1355

Title

Mechanisms of drought resistance in grain: II Stomatal regulation and root growth

Tilahun Amede; Sven Schubert SINET Ethiopian Journal of Science 2005. doi:10.4314/sinet.v26i2.18209

Other claims from this paper (14)

Mechanism Earlier work attributed chick pea drought resistance to osmotic adjustment.
Mechanism Earlier work attributed common bean drought resistance to maintained leaf water potential rather than osmotic adjustment.
Intervention effect Mild drought decreased water potential in common bean to -0.35 MPa.
Intervention effect Mild drought decreased water potential in chick pea to -0.89 MPa.
Intervention effect Mild drought decreased common bean dry matter by 25%.
Intervention effect Mild drought decreased chick pea dry matter by 15%.
Intervention effect Photosynthesis under drought was reduced by 75% in common bean.
Intervention effect Photosynthesis under drought was reduced by 20% in chickpea.
Mechanism Decreased photosynthesis significantly reduced glucose, fructose and sucrose reserves in common bean.
Mechanism Reduced sugar reserve was proposed as a possible cause of reduced biomass synthesis.
Observation Common bean had significantly higher water use efficiency than chick pea across water regimes.
Observation Common bean root length density was twice that of chick pea.
Observation Common bean root weight was higher than chick pea root weight.
Mechanism The authors attributed high common bean water potential under stress to stomatal regulation and a robust root system.

Associationobservedreview summarynegativesignificant (as stated)measured

Claim · model-written summary

Heat stress decreases wheat photosynthesis rate, CO2 absorption and assimilation, photosynthesis activity, and chlorophyll content.

Taxon: wheatTriticum aestivumt0
Treatment: Heat stresse0
Outcome: CO2 absorption and assimilation, photosynthesis activitye0
Direction: decreasee0

Verbatim

t0
“wheat”
✓ located verbatim in the source · title, characters 34–39

e0
“Heat stress causes a significant decrease in the plant height, photosynthesis rate, dehiscence of the anther, floret fertility, kernel weight, CO2 absorption and assimilation, photosynthesis activity, and chlorophyll content, and starch synthesis in endosperm”
✓ located verbatim in the source · abstract, characters 705–964

Title

Heat stress and it’s tolerance in wheat

Sashi Bhusan Kumar Yadav; Suchi Bhatt Cogent Food & Agriculture 2024. doi:10.1080/23311932.2024.2413398

Other claims from this paper (6)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Elevated ozone significantly decreased photosynthesis rate.

Taxon: wheatTriticum aestivumt0
Treatment: elevated O3e1
Outcome: photosynthesis ratee0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“resulting in a significant decrease of the chlorophyll content, photosynthesis rate, and grain weight at maturing stage”
✓ located verbatim in the source · abstract, characters 981–1100

e1
“Under elevated O3”
✓ located verbatim in the source · abstract, characters 797–814

t0
“wheat”
✓ located verbatim in the source · title, characters 91–96

Title

[Impacts of elevated atmospheric ozone concentration on flag leaf microscopic structure of wheat: a field study with FACE system].

Xin-Kai Zhu; Chun-Yan Gao; Ru-Biao Zhang; et al. PubMed 2012

Other claims from this paper (10)

Intervention effect Elevated ozone slightly damaged flag leaf microscopic structure at anthesis.
Intervention effect Elevated ozone damaged mesophyll cell and chloroplast structure and grana lamellae.
Observation Leaf microscopic structure differed significantly between ozone treatments 21 days after anthesis.
Intervention effect Elevated ozone accelerated flag leaf senescence.
Intervention effect Elevated ozone caused endomembrane disintegration and grana lamella loss.
Intervention effect Elevated ozone significantly decreased chlorophyll content.
Intervention effect Elevated ozone significantly decreased grain weight at maturity.
Observation Wheat varieties differed significantly in ozone responses.
Observation Jiaxin 002 was ozone tolerant.
Observation Yangfumai 2 was ozone sensitive.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing salt decreased growth, photosynthesis and gas exchange significantly.

Treatment: increasing salt concentratione0
Outcome: growth, photosynthesis, and gas exchange parameterse0
Direction: decreasee0

Not reportedTaxonComparator

Verbatim

e0
“The growth, photosynthesis, and gas exchange parameters showed a significant decrease in response to increasing salt concentration.”
✓ located verbatim in the source · abstract, characters 827–958

Title

Effects of salinity on photosynthetic traits, ion homeostasis and nitrogen metabolism in wild and cultivated soybean

Abd Ullah; Mingxia Li; Javaria Noor; et al. PeerJ 2019. doi:10.7717/peerj.8191

Other claims from this paper (8)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salinity significantly decreased photosynthesis, transpiration, stomatal conductance and relative water content.

Taxon: cluster beanCyamopsis tetragonolobat0
Treatment: Salinitye0
Outcome: photosynthesis rate, transpiration rate, stomatal conductance, relative water contente0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Salinity was found to decrease significantly the photosynthesis rate, transpiration rate, stomatal conductance, relative water content”
✓ located verbatim in the source · abstract, characters 531–665

t0
“cluster bean”
✓ located verbatim in the source · title, characters 64–76

Title

Mitigation of salinity induced effects by using brassinolide in cluster bean

Gograj Jat; DL Bagdi; BL Kakralya Bhartiya Krishi Anusandhan Patrika 2012

Other claims from this paper (4)

Intervention effect Salinity significantly decreased chlorophyll stability index.
Intervention effect Salinity significantly decreased pods per plant, seeds per pod and plant height.
Intervention effect Salinity significantly decreased pod length, test weight and grain yield.
Intervention effect Brassinolide up to 1.0 ppm significantly increased the measured physiological, growth and yield parameters.

“decrease of the photosynthesis”

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