Search claims · PlantClaims

Method / resourceobservedoriginal resultno effectnot significant (as stated)simulated

Claim · model-written summary

The controller caused no significant decrease in simulated maize yield relative to constant irrigation.

Taxon: maizeZea mayse1
Outcome: yielde0
Direction: without any significant decreasee0
Comparator: constant irrigation method of the DSSAT modele0

Verbatim

t0
“Precision Irrigation”
✓ located verbatim in the source · title, characters 44–64

e0
“almost 40% decrease in water consumption is achieved in comparison to constant irrigation method of the DSSAT model without any significant decrease in yield and leaf area index.”
✓ located verbatim in the source · abstract, characters 2249–2427

e1
“DSSAT (Decision Support System for Agro-technology Transfer) maize crop simulation model”
✓ located verbatim in the source · abstract, characters 1911–1999

Title

Reinforcement Learning Based Controller For Precision Irrigation

Shivaram Irukula OakTrust (Texas A&M University Libraries) 2015

Other claims from this paper (2)

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The lower water use efficiency under high irrigation frequency resulted mainly from the decrease in fresh fruit yield.

Taxon: OkraAbelmoschus esculentust0
Treatment: high irrigation frequencye0
Outcome: water use efficiencye0
Qualifier: decrease in fresh fruit yielde0

Verbatim

e0
“The reduction in water use efficiency under high irrigation frequency as compared to low irrigation frequency resulted primarily from decrease in fresh fruit yield”
✓ located verbatim in the source · abstract, characters 1134–1297

t0
“Okra”
✓ located verbatim in the source · title, characters 18–22

Title

Yield Response Of Okra To Irrigation Frequency And Amount In A Sprinkler Irrigation System

Adeogun, E. O. Zenodo (CERN European Organization for Nuclear Research) 2016. doi:10.5281/zenodo.844562

Other claims from this paper (3)

Intervention effect Fresh fruit yield of okra was significantly higher under low irrigation frequency than under high irrigation frequency.
Intervention effect Okra yield was significantly reduced with additional irrigation amount and increased frequency.
Intervention effect Water use efficiency of okra increased appreciably under low irrigation frequency.

Observationobservedoriginal resultmeasured

Claim · model-written summary

JS-263 showed a stronger yield decrease under water deficit.

Taxon: forage sorghum (Sorghum bicolor (L.) Moench)Sorghum bicolort0
Material: JS-263e0
Treatment: water deficite0
Outcome: yielde0
Direction: decreasee0

Verbatim

e0
“JS-263 also showed a higher yield response factor to water supply, meaning a stronger yield decrease under water deficit.”
✓ located verbatim in the source · abstract, characters 1271–1392

t0
“forage sorghum (Sorghum bicolor (L.) Moench)”
✓ located verbatim in the source · title, characters 42–86

Title

Growth response and plant water status in forage sorghum (Sorghum bicolor (L.) Moench) cultivars subjected to decreasing levels of soil moisture

Ahmad Sher; Lorenzo Barbanti; Muhammad Ansar; et al. Archivio istituzionale della ricerca (Alma Mater Studiorum Università di Bologna) 2013

Other claims from this paper (11)

Association Soil moisture variation affected all assessed traits.
Observation Cultivars differed significantly in drought response.
Observation At low moisture, the three genotypes had similar net assimilation rate and specific leaf area.
Observation At low moisture, root and shoot dry weight were similar among the three genotypes.
Observation At high moisture, JS-2002 ranked above Chakwal Sorghum and JS-263 for potential.
Observation JS-2002 ranked best and JS-263 worst for plant height and leaf area across moisture levels.
Observation JS-263 had leaf water potential of -1.84 MPa versus -1.55 MPa in JS-2002.
Observation JS-263 had relative water content of 71% versus 78% in JS-2002.
Association The water use efficiency gap between S-2002 and JS-263 increased with moisture.
Observation JS-263 had a higher yield response factor to water supply.
Recommendation The authors considered JS-2002 and Chakwal Sorghum suitable for areas with dry spells.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Reduced crop water requirement was followed by lower leaf area index, dry biomass and grain yield.

Taxon: SoybeanGlycine maxt0
Outcome: decrease in LAI and TDB and a subsequent decrease in grain yielde0
Direction: decreasee0
Qualifier: decreased CWRe0

Verbatim

t0
“Soybean”
✓ located verbatim in the source · title, characters 99–106

e0
“decreased CWR which in turn caused the decrease in LAI and TDB and a subsequent decrease in grain yield”
✓ located verbatim in the source · abstract, characters 693–796

Title

The Effect of Deficit Irrigation on Root/shoot Ratio, Water Use Efficiency and Yield Efficiency of Soybean

Shakil Uddin Ahmed; Masateru Senge; Kengo Ito; et al. Journal of Rainwater Catchment Systems 2010. doi:10.7132/jrcsa.kj00006069061

Other claims from this paper (6)

Association Soybean seed yield correlated with crop water requirement, leaf area index and total dry biomass under water deficits.
Intervention effect Water stress decreased soybean crop water requirement.
Association Water use efficiency and yield efficiency rose with root/shoot ratio through D_4, then declined at D_5.
Observation D_4 produced the highest yield efficiency for economic water use.
Intervention effect D_4 produced 21% lower yield per plant than full irrigation.
Intervention effect D_4 could conserve 18% of irrigation water relative to full irrigation for the same yield.

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Legumes did not decrease maize yield in the intercrops.

Taxon: maizeZea mayse1
Treatment: legumese1
Outcome: yieldse1
Direction: decreasede1

Verbatim

e1
“Neither the legumes decreased yields of maize nor roselle”
✓ located verbatim in the source · abstract, characters 778–835

Title

Exploring Maize-Legume Intercropping Systems in Southwest Mexico

D. Flores-Sanchez; A. Pastor; E. A. Lantinga; et al. Agroecology and Sustainable Food Systems 2013. doi:10.1080/21683565.2013.763888

Other claims from this paper (8)

Association Legumes did not decrease roselle yield in the intercrops.
Observation Legume intercropping reduced weed biomass by 24–55%.
Observation Total aboveground biomass returned to the soil increased by up to 36% in the legume intercrops.
Observation Total N uptake increased by 52% on average in the legume intercrops.
Observation P uptake increased by 24% on average in the legume intercrops.
Observation K uptake increased by 30% on average in the legume intercrops.
Mechanism Legumes act as N-fixing crops that prevent N and K leaching.
Association Canavalia showed agronomic advantages over mucuna as an intercrop.

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Legumes did not decrease roselle yield in the intercrops.

Taxon: roselleHibiscus sabdariffae1
Treatment: legumese1
Outcome: yieldse1
Direction: decreasede1

Verbatim

e1
“Neither the legumes decreased yields of maize nor roselle”
✓ located verbatim in the source · abstract, characters 778–835

Title

Exploring Maize-Legume Intercropping Systems in Southwest Mexico

D. Flores-Sanchez; A. Pastor; E. A. Lantinga; et al. Agroecology and Sustainable Food Systems 2013. doi:10.1080/21683565.2013.763888

Other claims from this paper (8)

Association Legumes did not decrease maize yield in the intercrops.
Observation Legume intercropping reduced weed biomass by 24–55%.
Observation Total aboveground biomass returned to the soil increased by up to 36% in the legume intercrops.
Observation Total N uptake increased by 52% on average in the legume intercrops.
Observation P uptake increased by 24% on average in the legume intercrops.
Observation K uptake increased by 30% on average in the legume intercrops.
Mechanism Legumes act as N-fixing crops that prevent N and K leaching.
Association Canavalia showed agronomic advantages over mucuna as an intercrop.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt stress induced a linear decrease in biological yield, paddy yield and total plant biomass.

Taxon: riceOryza sativat0
Treatment: Salt stresse0
Outcome: biological and paddy yield and total plant biomasse0
Direction: linear decreasee0

Verbatim

e0
“Salt stress induced a linear decrease in biological and paddy yield and total plant biomass”
✓ located verbatim in the source · abstract, characters 1360–1451

t0
“EFFECT OF FLUCTUATING SALINITY AT DIFFERENT GROWTH STAGES ON PHYSIOLOGICAL AND YIELD RELATED PARAMETERS OF RICE (ORYZA SATIVA L.)”
✓ located verbatim in the source · title, characters 0–129

Title

EFFECT OF FLUCTUATING SALINITY AT DIFFERENT GROWTH STAGES ON PHYSIOLOGICAL AND YIELD RELATED PARAMETERS OF RICE (ORYZA SATIVA L.)

Yasser Yaghoubian; Hemmatollah Pirdashti; A. Mottaghian; et al. International journal of agriculture 2012

Other claims from this paper (12)

Intervention effect Increasing salinity rapidly affected rice leaf area and active leaf number.
Observation Salinity did not affect rice tiller number.
Observation Salinity significantly affected rice flag leaf area during grain filling.
Intervention effect Salinity reduced rice chlorophyll contents by up to 16.5% compared with control.
Intervention effect Salinity reduced rice relative water content by up to 21% compared with control.
Observation Increasing salt stress significantly reduced rice biological, paddy and straw yields.
Observation Increasing salt stress significantly reduced rice biomass, fertile tillers, height, filled grain and 1000-grain weight.
Observation Increasing salt stress significantly reduced rice root length, volume and biomass.
Observation Harvest index followed a second degree response to salt stress.
Association Biological yield and grain number per plant were positively and significantly correlated with paddy yield.
Association Grain number per panicle was negatively and significantly correlated with paddy yield.
Intervention effect Fluctuating salt stress at early stages reduced rice yield more than stress at other stages.

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Linear regression across models predicts a 6% state-averaged yield decrease per 1°C rise in warm-season average air temperature.

Taxon: maizeZea mayst0
Treatment: 1°C increase in warm season average air temperaturee2
Outcome: state-averaged yielde2
Direction: decreasee2
Value: 6%e2

Verbatim

t0
“Climate Change and Maize Yield in Iowa”
✓ located verbatim in the source · title, characters 0–38

e2
“Linear regression of all models predicts a 6% state-averaged yield decrease for every 1°C increase in warm season average air temperature”
✓ located verbatim in the source · abstract, characters 905–1042

Title

Climate Change and Maize Yield in Iowa

Hong Xu; Tracy E. Twine; Evan Girvetz PLoS ONE 2016. doi:10.1371/journal.pone.0156083

Other claims from this paper (3)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The rice yield decrease under upland conditions was mainly derived from a decrease in above-ground total dry matter rather than in harvest index.

Taxon: riceOryza sativae0
Outcome: above-ground total dry matter (TDM)e2
Direction: decreasee2
Qualifier: rather than a decrease in harvest index (HI)e2
Setting: Kyoto, Japane2

Verbatim

e0
“Recent studies have focused on the improvement of rice productivity under aerobic conditions”
✓ located verbatim in the source · abstract, characters 0–92

e2
“A three-year field experiment in the temperate climate of Kyoto, Japan, indicated that the decrease in yield was mainly derived from a decrease in above-ground total dry matter (TDM) rather than a decrease in harvest index (HI)”
✓ located verbatim in the source · abstract, characters 315–542

Title

Adaptability of High-Yielding Rice Cultivars in Relation to Biomass Productivity under Moderately Water Stressed Upland Conditions

Tomohiro Hyoda; Koki Homma; Tatsuhiko Shiraiwa; et al. Agricultural Sciences 2015. doi:10.4236/as.2015.63036

Other claims from this paper (6)

Intervention effectobservedoriginal resultnegativesimulated

Claim · model-written summary

Decreased carbon dioxide concentration decreased simulated maize yield.

Taxon: maizeZea mayst0
Treatment: decrease carbondioxide concentratione0
Outcome: yieldt0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“decrease carbondioxide concentration”
✓ located verbatim in the source · abstract, characters 1628–1664

t0
“yield of rainfed maize”
✓ located verbatim in the source · title, characters 25–47

Title

Simulation of growth and yield of rainfed maize under varied agronomic management and changing climatic scenario in Nawalparasi, Nepal

Umesh Shrestha; Lal Prasad Amgain; Tika Bahadur Karki; et al. Journal of Maize Research and Development 2015. doi:10.3126/jmrd.v1i1.14250

Other claims from this paper (18)

Observation RML-4/RML-17 had higher kernel rows per ear, at 13.77.
Observation RML-4/RML-17 had higher kernels per row, at 30.42.
Observation RML-4/RML-17 had higher test weight, at 244.9 g.
Observation RML-4/RML-17 grain yield was significantly higher at 6.03 t/ha than the listed cultivars.
Intervention effect April 7 sowing had higher kernels per row at 27.97.
Intervention effect April 7 sowing had higher kernel rows per ear at 12.89.
Intervention effect April 7 sowing had higher 1000 grain weight at 230 g.
Intervention effect April 7 sowing produced significantly higher grain yield of 5.13t/ha.
Method / resource The calibrated model validated days to anthesis with RMSE 0.426 day and D-index 0.998.
Method / resource The model validated physiological maturity with RMSE 0.674 day and D-index 0.999.
Method / resource The model validated grain number with RMSE 85.287 grain /m2 and D-index 0.993.
Method / resource The model validated unit weight with RMSE 0.012 g/kernel and D-index 0.854.
Method / resource The model validated grain yield with RMSE 54.94 kg/ha and D-index 1.00.
Method / resource The model was sensitive to climate change parameters.
Intervention effect Increasing maximum and minimum temperature decreased simulated rainfed maize yield.
Intervention effect Decreased solar radiation decreased simulated maize yield.
Intervention effect A 2°C temperature rise decreased spring maize yield by around 15-20%.
Intervention effect The negative temperature effect was more pronounced in hybrid maize than other cultivars.

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics