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“yield decrease”

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1980 ’90 2000 ’10 ’20

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Organism: Lactuca sativa ✕

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Cadmium application did not significantly decrease lettuce crop yield.

Taxon: lettuceLactuca sativae1
Treatment: 20 kg Cd ha(-1) applicatione0
Outcome: crop yielde0
Direction: did not result in a significant decreasee0

Not reportedComparator

Verbatim

e0
“20 kg Cd ha(-1) application did not result in a significant decrease in crop yield”
✓ located verbatim in the source · abstract, characters 429–511

e1
“lettuce plant and soil”
✓ located verbatim in the source · abstract, characters 248–270

Title

EFFECTS OF IRON APPLICATION AGAINST CADMIUM TOXICITY ON GROWTH AND ANTI-OXIDATIVE ENZYME ACTIVITY IN LETTUCE

Boysan Canal, Sibel; Bozkurt, Mehmet Ali Van Yüzüncü Yıl University Academic Data Management System 2017

Other claims from this paper (12)

Intervention effect Cadmium toxicity significantly increased lettuce APX activity.
Intervention effect Cadmium toxicity significantly increased lettuce SOD activity.
Intervention effect Iron application substantially decreased lettuce SOD activity.
Intervention effect Sewage sludge application substantially decreased lettuce SOD activity.
Intervention effect Cadmium application significantly increased soil DTPA-Cd.
Intervention effect Cadmium application significantly increased plant DTPA-Cd.
Intervention effect Applying 50 kg Fe ha(-1) to cadmium-contaminated soil decreased soil DTPA-Cd.
Intervention effect Sewage sludge reduced soil cadmium concentration compared with cadmium application alone.
Intervention effect Sewage sludge reduced plant cadmium concentration compared with cadmium application alone.
Recommendation The authors conclude that iron can alleviate cadmium toxicity.
Mechanism The authors conclude that urban sewage sludge did not cause severe toxicity because its heavy-metal content was low.
Mechanism The authors conclude that sewage sludge can inhibit cadmium intake because of its organic matter content.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Reducing nitrogen from N90 to N60 did not decrease lettuce yield.

Taxon: LettuceLactuca sativat0
Treatment: N60e0
Outcome: crop yielde0
Direction: without decreasinge0
Comparator: N90 treatmente0

Verbatim

e0
“Compared to the N90 treatment, N2O emission of N60 was reduced by 42% in loam soil and 30% in deep sandy soil without decreasing crop yield.”
✓ located verbatim in the source · abstract, characters 1011–1151

t0
“Lettuce”
✓ located verbatim in the source · title, characters 64–71

Title

Nitrogen Fertilization Management and Nitrous Oxide Emission in Lettuce Vegetable Fields in Central Vietnam

Hoang . International Journal of Agriculture and Biology 2018. doi:10.17957/ijab/15.0484

Other claims from this paper (9)

Association Cumulative N2O emissions increased in proportion to nitrogen fertilizer application.
Association Yield-based N2O intensity increased in proportion to nitrogen fertilizer application.
Intervention effect Calcium nitrate at 90 kg N ha -1 had the highest N2O emissions, 1.20 to 1.82 times ammonium sulfate.
Intervention effect Calcium nitrate at 90 kg N ha -1 had the highest N2O emissions, 1.60 to 1.91 times urea.
Intervention effect Reducing nitrogen from N90 to N60 cut N2O emissions by 42% in loam soil.
Intervention effect Reducing nitrogen from N90 to N60 cut N2O emissions by 30% in deep sandy soil.
Observation Growing-season N2O emission factors ranged from 0.40% to 0.61% of added nitrogen.
Association Growing-season N2O emission factors increased with nitrogen fertilizer rate.
Association N2O fluxes fell significantly as applied nitrogen fertilizer amounts decreased.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen treatments 2, 3, 4 and 5 caused no decrease in lettuce productivity.

Taxon: lettuceLactuca sativae0
Treatment: the treatments 2, 3, 4 and 5e2
Outcome: productivitye3
Direction: no decreasee3

Not reportedComparator

Verbatim

e0
“The objective of this work was to evaluate the lettuce yield under the different management of nitrogen fertilization”
✓ located verbatim in the source · abstract, characters 0–117

e2
“the treatments 2, 3, 4 and 5 did not difference significantly from each other”
✓ located verbatim in the source · abstract, characters 870–947

e3
“there was no decrease in productivity”
✓ located verbatim in the source · abstract, characters 953–990

Title

PRODUCTIVITY OF LETTUCE CULTURE IN THE FUNCTION OF NITROGEN FERTILIZER MANAGENT

G. A. Nascimento; M. Sorace; J. P. Matias; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2017. doi:10.36560/1062017533

Other claims from this paper (3)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Saline mineral water did not change lettuce yield in lettuce.

Taxon: lettuceLactuca sativae0
Treatment: Saline mineral watere0
Outcome: lettuce yielde0
Direction: did not affect changese0

Not reportedComparator

Verbatim

e0
“Saline mineral water did not affect changes of lettuce yield, nor content of phosphorus, potassium, sodium, vitamin C, P-carotene and chlorophyll, but it led to the decrease of nitrogen content (especially of nitrite form) and the increase of magnesium, sulphur and chlorine.”
✓ located verbatim in the source · abstract, characters 399–674

t0
“LETTUCE (LACTUCA SATIVA L.)”
✓ located verbatim in the source · title, characters 23–50

Title

EFFECTS OF SALINITY ON LETTUCE (LACTUCA SATIVA L.) QUALITY

V Dragidevic; D Prodanovic; Slobodanka Sredojević Acta periodica technologica 2000

Other claims from this paper (11)

Intervention effect Saline mineral water did not change content of phosphorus in lettuce.
Intervention effect Saline mineral water did not change potassium in lettuce.
Intervention effect Saline mineral water did not change sodium in lettuce.
Intervention effect Saline mineral water did not change vitamin C in lettuce.
Intervention effect Saline mineral water did not change P-carotene in lettuce.
Intervention effect Saline mineral water did not change chlorophyll in lettuce.
Intervention effect Saline mineral water decreased lettuce nitrogen content, especially nitrite.
Intervention effect Saline mineral water increased lettuce magnesium.
Intervention effect Saline mineral water increased lettuce sulphur.
Intervention effect Saline mineral water increased lettuce chlorine.
Intervention effect Saline mineral water did not reduce the nutritive value of lettuce.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Salt stress did not alter antioxidant enzyme activities.

Taxon: LettuceLactuca sativat0
Treatment: Salt stresse1
Outcome: antioxidant enzyme activitiese0
Direction: without alteringe0

Not reportedComparator

Verbatim

e0
“without altering antioxidant enzyme activities.”
✓ located verbatim in the source · abstract, characters 1138–1185

e1
“Salt stress triggered a decrease in fresh yield”
✓ located verbatim in the source · abstract, characters 964–1011

t0
“Lettuce Tolerance to Alkalinity and Salinity”
✓ located verbatim in the source · title, characters 102–146

Title

Synergistic Action of a Microbial-based Biostimulant and a Plant Derived-Protein Hydrolysate Enhances Lettuce Tolerance to Alkalinity and Salinity

Youssef Rouphael; Mariateresa Cardarelli; Paolo Bonini; et al. Frontiers in Plant Science 2017. doi:10.3389/fpls.2017.00131

Other claims from this paper (13)

Intervention effect Salt stress reduced lettuce fresh yield, biomass, SPAD index, chlorophyll fluorescence and leaf mineral composition.
Intervention effect Salt stress increased leaf proline concentration.
Intervention effect Alkali stress produced a nonsignificant decline in marketable yield and biomass.
Intervention effect Tablet increased marketable yield and shoot and root dry weight across nutrient solutions.
Intervention effect Tablet plus PH increased marketable yield and shoot and root dry weight across nutrient solutions.
Association Biostimulant application improved SPAD index and Fv/Fm ratio.
Association Biostimulant application improved CAT and GPX activities.
Association Biostimulant application was associated with higher P, K and Fe and lower Na under NaCl.
Association Biostimulant application was associated with lower Na under NaCl.
Association Biostimulant application was associated with higher P and Fe under NaHCO3.
Observation Biostimulant application increased total root length and surface.
Intervention effect Tablet plus PH increased fresh marketable yield by 15.5% relative to Tablet.
Intervention effect Tablet plus PH increased fresh marketable yield by 46.7% relative to untreated plants.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Saline mineral water did not change potassium in lettuce.

Taxon: lettuceLactuca sativae0
Treatment: Saline mineral watere0
Outcome: potassiume0
Direction: did not affect changese0

Not reportedComparator

Verbatim

e0
“Saline mineral water did not affect changes of lettuce yield, nor content of phosphorus, potassium, sodium, vitamin C, P-carotene and chlorophyll, but it led to the decrease of nitrogen content (especially of nitrite form) and the increase of magnesium, sulphur and chlorine.”
✓ located verbatim in the source · abstract, characters 399–674

t0
“LETTUCE (LACTUCA SATIVA L.)”
✓ located verbatim in the source · title, characters 23–50

Title

EFFECTS OF SALINITY ON LETTUCE (LACTUCA SATIVA L.) QUALITY

V Dragidevic; D Prodanovic; Slobodanka Sredojević Acta periodica technologica 2000

Other claims from this paper (11)

Intervention effect Saline mineral water did not change lettuce yield in lettuce.
Intervention effect Saline mineral water did not change content of phosphorus in lettuce.
Intervention effect Saline mineral water did not change sodium in lettuce.
Intervention effect Saline mineral water did not change vitamin C in lettuce.
Intervention effect Saline mineral water did not change P-carotene in lettuce.
Intervention effect Saline mineral water did not change chlorophyll in lettuce.
Intervention effect Saline mineral water decreased lettuce nitrogen content, especially nitrite.
Intervention effect Saline mineral water increased lettuce magnesium.
Intervention effect Saline mineral water increased lettuce sulphur.
Intervention effect Saline mineral water increased lettuce chlorine.
Intervention effect Saline mineral water did not reduce the nutritive value of lettuce.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Saline mineral water did not change sodium in lettuce.

Taxon: lettuceLactuca sativae0
Treatment: Saline mineral watere0
Outcome: sodiume0
Direction: did not affect changese0

Not reportedComparator

Verbatim

e0
“Saline mineral water did not affect changes of lettuce yield, nor content of phosphorus, potassium, sodium, vitamin C, P-carotene and chlorophyll, but it led to the decrease of nitrogen content (especially of nitrite form) and the increase of magnesium, sulphur and chlorine.”
✓ located verbatim in the source · abstract, characters 399–674

t0
“LETTUCE (LACTUCA SATIVA L.)”
✓ located verbatim in the source · title, characters 23–50

Title

EFFECTS OF SALINITY ON LETTUCE (LACTUCA SATIVA L.) QUALITY

V Dragidevic; D Prodanovic; Slobodanka Sredojević Acta periodica technologica 2000

Other claims from this paper (11)

Intervention effect Saline mineral water did not change lettuce yield in lettuce.
Intervention effect Saline mineral water did not change content of phosphorus in lettuce.
Intervention effect Saline mineral water did not change potassium in lettuce.
Intervention effect Saline mineral water did not change vitamin C in lettuce.
Intervention effect Saline mineral water did not change P-carotene in lettuce.
Intervention effect Saline mineral water did not change chlorophyll in lettuce.
Intervention effect Saline mineral water decreased lettuce nitrogen content, especially nitrite.
Intervention effect Saline mineral water increased lettuce magnesium.
Intervention effect Saline mineral water increased lettuce sulphur.
Intervention effect Saline mineral water increased lettuce chlorine.
Intervention effect Saline mineral water did not reduce the nutritive value of lettuce.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Saline mineral water did not change chlorophyll in lettuce.

Taxon: lettuceLactuca sativae0
Treatment: Saline mineral watere0
Outcome: chlorophylle0
Direction: did not affect changese0

Not reportedComparator

Verbatim

e0
“Saline mineral water did not affect changes of lettuce yield, nor content of phosphorus, potassium, sodium, vitamin C, P-carotene and chlorophyll, but it led to the decrease of nitrogen content (especially of nitrite form) and the increase of magnesium, sulphur and chlorine.”
✓ located verbatim in the source · abstract, characters 399–674

t0
“LETTUCE (LACTUCA SATIVA L.)”
✓ located verbatim in the source · title, characters 23–50

Title

EFFECTS OF SALINITY ON LETTUCE (LACTUCA SATIVA L.) QUALITY

V Dragidevic; D Prodanovic; Slobodanka Sredojević Acta periodica technologica 2000

Other claims from this paper (11)

Intervention effect Saline mineral water did not change lettuce yield in lettuce.
Intervention effect Saline mineral water did not change content of phosphorus in lettuce.
Intervention effect Saline mineral water did not change potassium in lettuce.
Intervention effect Saline mineral water did not change sodium in lettuce.
Intervention effect Saline mineral water did not change vitamin C in lettuce.
Intervention effect Saline mineral water did not change P-carotene in lettuce.
Intervention effect Saline mineral water decreased lettuce nitrogen content, especially nitrite.
Intervention effect Saline mineral water increased lettuce magnesium.
Intervention effect Saline mineral water increased lettuce sulphur.
Intervention effect Saline mineral water increased lettuce chlorine.
Intervention effect Saline mineral water did not reduce the nutritive value of lettuce.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Saline mineral water did not change vitamin C in lettuce.

Taxon: lettuceLactuca sativae0
Treatment: Saline mineral watere0
Outcome: vitamin Ce0
Direction: did not affect changese0

Not reportedComparator

Verbatim

e0
“Saline mineral water did not affect changes of lettuce yield, nor content of phosphorus, potassium, sodium, vitamin C, P-carotene and chlorophyll, but it led to the decrease of nitrogen content (especially of nitrite form) and the increase of magnesium, sulphur and chlorine.”
✓ located verbatim in the source · abstract, characters 399–674

t0
“LETTUCE (LACTUCA SATIVA L.)”
✓ located verbatim in the source · title, characters 23–50

Title

EFFECTS OF SALINITY ON LETTUCE (LACTUCA SATIVA L.) QUALITY

V Dragidevic; D Prodanovic; Slobodanka Sredojević Acta periodica technologica 2000

Other claims from this paper (11)

Intervention effect Saline mineral water did not change lettuce yield in lettuce.
Intervention effect Saline mineral water did not change content of phosphorus in lettuce.
Intervention effect Saline mineral water did not change potassium in lettuce.
Intervention effect Saline mineral water did not change sodium in lettuce.
Intervention effect Saline mineral water did not change P-carotene in lettuce.
Intervention effect Saline mineral water did not change chlorophyll in lettuce.
Intervention effect Saline mineral water decreased lettuce nitrogen content, especially nitrite.
Intervention effect Saline mineral water increased lettuce magnesium.
Intervention effect Saline mineral water increased lettuce sulphur.
Intervention effect Saline mineral water increased lettuce chlorine.
Intervention effect Saline mineral water did not reduce the nutritive value of lettuce.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Saline mineral water did not change P-carotene in lettuce.

Taxon: lettuceLactuca sativae0
Treatment: Saline mineral watere0
Outcome: P-carotenee0
Direction: did not affect changese0

Not reportedComparator

Verbatim

e0
“Saline mineral water did not affect changes of lettuce yield, nor content of phosphorus, potassium, sodium, vitamin C, P-carotene and chlorophyll, but it led to the decrease of nitrogen content (especially of nitrite form) and the increase of magnesium, sulphur and chlorine.”
✓ located verbatim in the source · abstract, characters 399–674

t0
“LETTUCE (LACTUCA SATIVA L.)”
✓ located verbatim in the source · title, characters 23–50

Title

EFFECTS OF SALINITY ON LETTUCE (LACTUCA SATIVA L.) QUALITY

V Dragidevic; D Prodanovic; Slobodanka Sredojević Acta periodica technologica 2000

Other claims from this paper (11)

Intervention effect Saline mineral water did not change lettuce yield in lettuce.
Intervention effect Saline mineral water did not change content of phosphorus in lettuce.
Intervention effect Saline mineral water did not change potassium in lettuce.
Intervention effect Saline mineral water did not change sodium in lettuce.
Intervention effect Saline mineral water did not change vitamin C in lettuce.
Intervention effect Saline mineral water did not change chlorophyll in lettuce.
Intervention effect Saline mineral water decreased lettuce nitrogen content, especially nitrite.
Intervention effect Saline mineral water increased lettuce magnesium.
Intervention effect Saline mineral water increased lettuce sulphur.
Intervention effect Saline mineral water increased lettuce chlorine.
Intervention effect Saline mineral water did not reduce the nutritive value of lettuce.

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“yield decrease”

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