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“decrease in relative water content”

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Organism: Hordeum vulgare ✕

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under drought, the decrease in leaf relative water content, net photosynthesis and biomass was smaller in Otis than in Baronesse.

Taxon: barleyHordeum vulgaree2
Material: Otise2
Treatment: droughte2
Outcome: leaf relative water content, net photosynthesis, and biomass accumulatione1
Direction: decreasee1
Comparator: Baronessee1

Verbatim

e2
“drought-tolerant (Otis) and drought-sensitive (Baronesse) barley genotypes subjected to drought”
✓ located verbatim in the source · abstract, characters 385–480

e1
“The drought-induced decrease in the leaf relative water content, net photosynthesis, and biomass accumulation was relatively low in Otis compared to Baronesse”
✓ located verbatim in the source · abstract, characters 554–712

Title

The Effect of Drought on Transcriptome and Hormonal Profiles in Barley Genotypes With Contrasting Drought Tolerance

Amal Harb; Craig Simpson; Wenbin Guo; et al. Frontiers in Plant Science 2020. doi:10.3389/fpls.2020.618491

Other claims from this paper (10)

Intervention effect Under drought, GA20 levels increased in Otis compared to Baronesse.
Intervention effect Under drought, cis-zeatin-o-glucoside (c-ZOG) levels increased in Otis compared to Baronesse.
Association Hormonal profiles of the barley genotypes under drought did not differ significantly for most compounds.
Intervention effect Under drought, the number of differentially expressed genes was lower in Otis than in Baronesse.
Intervention effect The wax biosynthesis gene CER1 was specifically induced in Otis under drought and not in Baronesse.
Intervention effect NAC transcription factors were specifically induced in Otis under drought and not in Baronesse.
Intervention effect Upregulation of betaine aldehyde dehydrogenase under drought was greater in Otis than in Baronesse.
Intervention effect Upregulation of a homeobox transcription factor under drought was greater in Otis than in Baronesse.
Intervention effect Under drought, downregulation of PSII D1 and D2 gene expression was lower in Otis than in Baronesse.
Association Alternative splicing differs between the barley genotypes under drought.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Re-watering increased relative water content to 90% of control.

Taxon: barleyHordeum vulgaret0
Treatment: re-wateringe0
Outcome: RWCe0
Direction: increasede0
Value: 90%e0
Comparator: controle0

Verbatim

e0
“The applied drought stress caused a 55% decrease in the relative water content (RWC) in seedlings, while re-watering increased the RWC to 90% of the control.”
✓ located verbatim in the source · abstract, characters 453–610

t0
“barley”
✓ located verbatim in the source · title, characters 84–90

Title

Drought stress and re-watering affect the abundance of TIP aquaporin transcripts in barley

Marzena Małgorzata Kurowska; Klaudia Wiecha; Katarzyna Gajek; et al. PLoS ONE 2019. doi:10.1371/journal.pone.0226423

Other claims from this paper (11)

Intervention effect Drought decreased barley seedling relative water content by 55%.
Observation Most HvTIP genes were expressed in leaves under optimal moisture, except three named genes.
Observation HvTIP2;3, HvTIP1;2 and HvTIP1;1 had the most abundant transcripts.
Observation HvTIP genes varied significantly in transcriptional activity under drought stress.
Intervention effect Five water transport HvTIP genes were down-regulated after drought.
Intervention effect HvTIP3;1 was up-regulated after drought.
Intervention effect HvTIP4;1 was up-regulated after drought.
Intervention effect HvTIP3;1 showed the largest activity increase under drought, about 5000-fold.
Intervention effect Rehydration returned or moved many gene expression levels toward optimal-moisture levels.
Observation All examined HvTIP promoters contained hormone and stress response cis-elements.
Mechanism The authors suggest seven studied HvTIP genes function in barley drought adaptation.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Two-week irrigation reduced relative water content by 25.11% and 26.19%.

Taxon: barleyHordeum vulgaret0
Treatment: Irrigation every two weekse0
Outcome: relative water contente0
Direction: reducede0
Value: 25.11 and 26.19%e0
Comparator: one weeke0

Verbatim

e0
“Irrigation every two weeks instead of one week reduced significantly all growth attributes. The relative decrease percentages were 25.41 and 22.93%, 22.63 and 19.98%, and 25.11 and 26.19% for flag leaf blade area, total chlorophyll and relative water content in both seasons, respectively.”
✓ located verbatim in the source · abstract, characters 464–753

t0
“BARLEY (HORDEUM VULGARE L.)”
✓ located verbatim in the source · title, characters 71–98

Title

INFLUENCE OF GLYCINEBETAINE AND NITROGEN LEVELS ON GROWTH AND YIELD OF BARLEY (HORDEUM VULGARE L.) UNDER DROUGHT CONDITIONS

Maher Kotb; El Sayed Gaballah Journal of Productivity and Development 2007. doi:10.21608/jpd.2007.44939

Other claims from this paper (19)

Intervention effect Two-week irrigation reduced flag leaf blade area by 25.41% and 22.93% in the two seasons.
Intervention effect Two-week irrigation reduced total chlorophyll by 22.63% and 19.98%.
Intervention effect 85 kg N/fad increased flag leaf blade area by 12.80 and 13.63% compared with 45 kg N/fad.
Intervention effect 85 kg N/fad increased total chlorophyll by 1.88 and 3.50% compared with 45 kg N/fad.
Intervention effect 85 kg N/fad increased relative water content by 3.28 and 4.59% compared with 45 kg N/fad.
Intervention effect 12 mM glycinebetaine increased flag leaf blade area by 20.63 and 23.06% compared with untreated plants.
Intervention effect 12 mM glycinebetaine increased total chlorophyll by 32.30 and 35.80% compared with untreated plants.
Intervention effect 12 mM glycinebetaine increased relative water content by 22.57 and 30.40% compared with untreated plants.
Intervention effect Increasing nitrogen without glycinebetaine did not increase total chlorophyll under either water condition.
Intervention effect Increasing glycinebetaine significantly increased total chlorophyll.
Intervention effect Extending irrigation from 7 to 14 days reduced grain yield by 22.73 and 26.02%.
Intervention effect Extending irrigation from 7 to 14 days reduced straw yield by 26.73 and 24.79%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased grain yield by 12.84 and 12.78%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased straw yield by 16.43 and 14.7%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased mean productivity by 12.88 and 12.85%.
Intervention effect Application of 12mM GB/fad increased grain yield by 21.27 and 24.77% compared with zero GB.
Intervention effect Application of 12mM GB/fad increased straw yield by 24.82 and 26.83% compared with zero GB.
Intervention effect Application of 12mM GB/fad increased mean productivity by 21.30 and 24.73% compared with zero GB.
Intervention effect The 8mM GB and 85 kg nitrogen combination yielded more than zero GB and 45 kg nitrogen under frequent irrigation and drought.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Abscisic acid relatively decreased RNase activity in salinated barley.

Taxon: barley plantsHordeum vulgaree1
Treatment: abscisic acide0
Outcome: RNase activitye0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“abscisic acid effected a relative decrease in RNase activity and maintained chlorophyll content”
✓ located verbatim in the source · abstract, characters 719–814

t0
“Leaf Cell Water and Enzyme Activity”
✓ located verbatim in the source · title, characters 0–35

e1
“barley plants (Hordeum vulgare L.)”
✓ located verbatim in the source · abstract, characters 257–291

Title

Leaf Cell Water and Enzyme Activity

Shoshana (Malis) Arad; Amos E. Richmond PLANT PHYSIOLOGY 1976. doi:10.1104/pp.57.4.656

Other claims from this paper (9)

Mechanism The authors propose that cell water content can supersede hormonal regulation of enzyme activity under water stress.
Intervention effect NaCl increased leaf RNase activity in barley.
Intervention effect NaCl increased barley leaf water saturation deficit.
Intervention effect Kinetin relatively increased RNase activity in salinated barley.
Intervention effect Kinetin decreased leaf chlorophyll in salinated barley.
Intervention effect Abscisic acid maintained chlorophyll content in salinated barley.
Association Leaf RNase activity was closely related to leaf water saturation deficit in salinated barley, regardless of hormonal treatment.
Association Leaf protease activity was closely related to leaf water saturation deficit in salinated barley, regardless of hormonal treatment.
Intervention effect High relative humidity prevented the salt-induced increase in barley leaf RNase activity.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Abscisic acid maintained chlorophyll content in salinated barley.

Taxon: barley plantsHordeum vulgaree1
Treatment: abscisic acide0
Outcome: chlorophyll contente0
Direction: maintainede0

Not reportedComparator

Verbatim

e0
“abscisic acid effected a relative decrease in RNase activity and maintained chlorophyll content”
✓ located verbatim in the source · abstract, characters 719–814

e1
“barley plants (Hordeum vulgare L.)”
✓ located verbatim in the source · abstract, characters 257–291

Title

Leaf Cell Water and Enzyme Activity

Shoshana (Malis) Arad; Amos E. Richmond PLANT PHYSIOLOGY 1976. doi:10.1104/pp.57.4.656

Other claims from this paper (9)

Mechanism The authors propose that cell water content can supersede hormonal regulation of enzyme activity under water stress.
Intervention effect NaCl increased leaf RNase activity in barley.
Intervention effect NaCl increased barley leaf water saturation deficit.
Intervention effect Kinetin relatively increased RNase activity in salinated barley.
Intervention effect Kinetin decreased leaf chlorophyll in salinated barley.
Intervention effect Abscisic acid relatively decreased RNase activity in salinated barley.
Association Leaf RNase activity was closely related to leaf water saturation deficit in salinated barley, regardless of hormonal treatment.
Association Leaf protease activity was closely related to leaf water saturation deficit in salinated barley, regardless of hormonal treatment.
Intervention effect High relative humidity prevented the salt-induced increase in barley leaf RNase activity.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Under future combined conditions, anthesis drought reduced cell dehydration against current conditions.

Taxon: barleyHordeum vulgaret0
Treatment: anthesis drought and under future combined conditionse0
Outcome: cell dehydratione0
Direction: reducede0
Comparator: current conditionse0

Verbatim

e0
“At anthesis drought and under future combined conditions, plants showed a reduced cell dehydration and decrease in leaf relative water content compared with plants grown under current conditions.”
✓ located verbatim in the source · abstract, characters 1172–1367

t0
“barley”
✓ located verbatim in the source · title, characters 49–55

Title

Climate change does not impact the water flow of barley at the vegetative stage, ameliorates at anthesis and worsens after subsequent drought episodes

Ander Yoldi-Achalandabaso; Wieland Fricke; Jon Miranda-Apodaca; et al. Plant Physiology and Biochemistry 2024. doi:10.1016/j.plaphy.2024.109060

Other claims from this paper (10)

Intervention effect Vegetative drought did not affect barley water status across environmental conditions.
Intervention effect At anthesis, elevated CO2 and temperature maintained better water status than current conditions.
Intervention effect Elevated CO2 and temperature reduced stomatal conductance.
Intervention effect Elevated CO2 and temperature slowed plant water flow.
Mechanism Leaf HvPIP2;1 and HvTIP1 ; 1 were interpreted as key regulators of barley water flow.
Mechanism Leaf and root HvPIP2;5 was interpreted as providing basic water flow.
Intervention effect Under future combined conditions, anthesis drought decreased leaf relative water content against current conditions.
Intervention effect Prior drought did not prime barley water status for a later drought.
Intervention effect Prior drought worsened the later drought response under future conditions.
Mechanism The worsened response was attributed to root-shoot developmental imbalance.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Two-week irrigation reduced total chlorophyll by 22.63% and 19.98%.

Taxon: barleyHordeum vulgaret0
Treatment: Irrigation every two weekse0
Outcome: total chlorophylle0
Direction: reducede0
Value: 22.63 and 19.98%e0
Comparator: one weeke0

Verbatim

e0
“Irrigation every two weeks instead of one week reduced significantly all growth attributes. The relative decrease percentages were 25.41 and 22.93%, 22.63 and 19.98%, and 25.11 and 26.19% for flag leaf blade area, total chlorophyll and relative water content in both seasons, respectively.”
✓ located verbatim in the source · abstract, characters 464–753

t0
“BARLEY (HORDEUM VULGARE L.)”
✓ located verbatim in the source · title, characters 71–98

Title

INFLUENCE OF GLYCINEBETAINE AND NITROGEN LEVELS ON GROWTH AND YIELD OF BARLEY (HORDEUM VULGARE L.) UNDER DROUGHT CONDITIONS

Maher Kotb; El Sayed Gaballah Journal of Productivity and Development 2007. doi:10.21608/jpd.2007.44939

Other claims from this paper (19)

Intervention effect Two-week irrigation reduced flag leaf blade area by 25.41% and 22.93% in the two seasons.
Intervention effect Two-week irrigation reduced relative water content by 25.11% and 26.19%.
Intervention effect 85 kg N/fad increased flag leaf blade area by 12.80 and 13.63% compared with 45 kg N/fad.
Intervention effect 85 kg N/fad increased total chlorophyll by 1.88 and 3.50% compared with 45 kg N/fad.
Intervention effect 85 kg N/fad increased relative water content by 3.28 and 4.59% compared with 45 kg N/fad.
Intervention effect 12 mM glycinebetaine increased flag leaf blade area by 20.63 and 23.06% compared with untreated plants.
Intervention effect 12 mM glycinebetaine increased total chlorophyll by 32.30 and 35.80% compared with untreated plants.
Intervention effect 12 mM glycinebetaine increased relative water content by 22.57 and 30.40% compared with untreated plants.
Intervention effect Increasing nitrogen without glycinebetaine did not increase total chlorophyll under either water condition.
Intervention effect Increasing glycinebetaine significantly increased total chlorophyll.
Intervention effect Extending irrigation from 7 to 14 days reduced grain yield by 22.73 and 26.02%.
Intervention effect Extending irrigation from 7 to 14 days reduced straw yield by 26.73 and 24.79%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased grain yield by 12.84 and 12.78%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased straw yield by 16.43 and 14.7%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased mean productivity by 12.88 and 12.85%.
Intervention effect Application of 12mM GB/fad increased grain yield by 21.27 and 24.77% compared with zero GB.
Intervention effect Application of 12mM GB/fad increased straw yield by 24.82 and 26.83% compared with zero GB.
Intervention effect Application of 12mM GB/fad increased mean productivity by 21.30 and 24.73% compared with zero GB.
Intervention effect The 8mM GB and 85 kg nitrogen combination yielded more than zero GB and 45 kg nitrogen under frequent irrigation and drought.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Two-week irrigation reduced flag leaf blade area by 25.41% and 22.93% in the two seasons.

Taxon: barleyHordeum vulgaret0
Treatment: Irrigation every two weekse0
Outcome: flag leaf blade areae0
Direction: reducede0
Value: 25.41 and 22.93%e0
Comparator: one weeke0

Verbatim

e0
“Irrigation every two weeks instead of one week reduced significantly all growth attributes. The relative decrease percentages were 25.41 and 22.93%, 22.63 and 19.98%, and 25.11 and 26.19% for flag leaf blade area, total chlorophyll and relative water content in both seasons, respectively.”
✓ located verbatim in the source · abstract, characters 464–753

t0
“BARLEY (HORDEUM VULGARE L.)”
✓ located verbatim in the source · title, characters 71–98

Title

INFLUENCE OF GLYCINEBETAINE AND NITROGEN LEVELS ON GROWTH AND YIELD OF BARLEY (HORDEUM VULGARE L.) UNDER DROUGHT CONDITIONS

Maher Kotb; El Sayed Gaballah Journal of Productivity and Development 2007. doi:10.21608/jpd.2007.44939

Other claims from this paper (19)

Intervention effect Two-week irrigation reduced total chlorophyll by 22.63% and 19.98%.
Intervention effect Two-week irrigation reduced relative water content by 25.11% and 26.19%.
Intervention effect 85 kg N/fad increased flag leaf blade area by 12.80 and 13.63% compared with 45 kg N/fad.
Intervention effect 85 kg N/fad increased total chlorophyll by 1.88 and 3.50% compared with 45 kg N/fad.
Intervention effect 85 kg N/fad increased relative water content by 3.28 and 4.59% compared with 45 kg N/fad.
Intervention effect 12 mM glycinebetaine increased flag leaf blade area by 20.63 and 23.06% compared with untreated plants.
Intervention effect 12 mM glycinebetaine increased total chlorophyll by 32.30 and 35.80% compared with untreated plants.
Intervention effect 12 mM glycinebetaine increased relative water content by 22.57 and 30.40% compared with untreated plants.
Intervention effect Increasing nitrogen without glycinebetaine did not increase total chlorophyll under either water condition.
Intervention effect Increasing glycinebetaine significantly increased total chlorophyll.
Intervention effect Extending irrigation from 7 to 14 days reduced grain yield by 22.73 and 26.02%.
Intervention effect Extending irrigation from 7 to 14 days reduced straw yield by 26.73 and 24.79%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased grain yield by 12.84 and 12.78%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased straw yield by 16.43 and 14.7%.
Intervention effect Increasing nitrogen from 45 to 85 kg N/fad increased mean productivity by 12.88 and 12.85%.
Intervention effect Application of 12mM GB/fad increased grain yield by 21.27 and 24.77% compared with zero GB.
Intervention effect Application of 12mM GB/fad increased straw yield by 24.82 and 26.83% compared with zero GB.
Intervention effect Application of 12mM GB/fad increased mean productivity by 21.30 and 24.73% compared with zero GB.
Intervention effect The 8mM GB and 85 kg nitrogen combination yielded more than zero GB and 45 kg nitrogen under frequent irrigation and drought.

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“decrease in relative water content”

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