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“yield decrease”

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Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Susceptible Line 37-03 had 47.9% grain yield decrease.

Taxon: Bread WheatTriticum aestivumt0
Material: Line 37-03e0
Outcome: grain yielde0
Direction: decreasee0
Value: 47.9%e0

Verbatim

t0
“Bread Wheat”
✓ located verbatim in the source · title, characters 71–82

e0
“susceptible Line 37-03 recording a 47.9% decrease in grain yield”
✓ located verbatim in the source · abstract, characters 807–871

Title

Yield Loss Associated with Different Levels of Stem Rust Resistance in Bread Wheat

Tegwe Soko; Cornelia M. Bender; Renée Prins; et al. Plant Disease 2018. doi:10.1094/pdis-02-18-0307-re

Other claims from this paper (10)

Observation AUDPC distinguished moderately susceptible SC Stallion at 515.
Observation SC Nduna had AUDPC 995.
Observation Line 37-07 had AUDPC 1634.
Observation APR variety W1406 had AUDPC 256, above ASR SC Sky mean 25.
Observation APR variety W6979 had AUDPC 399, above ASR SC Sky mean 25.
Observation APR variety Kingbird had AUDPC 209, above ASR SC Sky mean 25.
Observation PTKST caused mean yield loss of 21.3% across protected and unprotected plots.
Observation APR W1406 had yield reduction of 19.5%.
Observation ASR SC Sky had mean yield loss of 6.4%.
Observation APR reduced effects of stem rust on yield but protected less than effective ASR under high disease pressure.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Edible-part yield tended to decrease in clubroot-infested Hanana plots.

Taxon: Hananat0
Outcome: yield of edible partse0
Direction: decreasee0
Setting: infested plotse0

Verbatim

e0
“The yield of edible parts showed a tendency of decrease in the infested plots”
✓ located verbatim in the source · abstract, characters 804–881

t0
“Hanana (flower nabana)”
✓ located verbatim in the source · title, characters 43–65

Title

Impact of clubroot disease on the yield of Hanana (flower nabana)

Gento Tsuji; Yuji Kamibayashi; Yuna Hotta; et al. Annual Report of The Kansai Plant Protection Society 2019. doi:10.4165/kapps.61.129

Other claims from this paper (3)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

In 2023 there was a decrease in yield compared with near-normal precipitation in 2021.

Taxon: cornZea mays subsp. mayst0
Outcome: yielde1
Direction: decreasee1

Verbatim

e1
“there was a decrease in yield”
✓ located verbatim in the source · abstract, characters 1293–1322

t0
“corn”
✓ located verbatim in the source · title, characters 35–39

Title

Cover crops did not change optimal corn nitrogen rate over three variable precipitation seasons in the Western Corn Belt

Tauana Ferreira de Almeida; Lucas Pecci Canisares; Emily Robinson; et al. Agronomy Journal 2025. doi:10.1002/agj2.70129

Other claims from this paper (7)

Intervention effect Cover crops did not decrease corn grain yield at the AONR.
Intervention effect Cover crops did not increase the AONR compared with the no-cover crop treatment.
Observation In 2021, with near-normal precipitation, corn yield at the AONR and the AONR were the highest of the three years.
Observation In 2022, with about half the 30-year average rainfall, yield at the AONR decreased across treatments.
Intervention effect In 2023, cover crop treatments had no significant effect on the AONR.
Mechanism Weather was the dominant factor driving the AONR.
Recommendation The results do not support the need for higher N rates after winter cover crops.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Maize yield tended to decrease above 32°C.

Taxon: MaizeZea mayse0
Outcome: Maize yielde0
Direction: decreasee0
Qualifier: temperatures exceed 32°Ce0
Setting: Upper East regione0

Verbatim

e0
“Maize yield in the Upper East region tends to decrease when temperatures exceed 32°C”
✓ located verbatim in the source · abstract, characters 774–858

Title

Marginal Impact of climate variability on crop yields in Ghana

Samuel Asante Gyamerah; Victor Owusu; Stephen Oppong Kwakye Scientific African 2024. doi:10.1016/j.sciaf.2024.e02314

Other claims from this paper (3)

Association Maximum and minimum temperature were the strongest climate indicators for maize yield.
Association Maize yield tended to increase around 24°C.
Association Across studied districts, maize yield tended to be maximal around 24°C.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher seasonal MPB totals produced the greatest lint yield decrease.

Taxon: CottonGossypium hirsutumt0
Treatment: Higher seasonal totalse0
Outcome: lint yielde0
Direction: decreasee0

Verbatim

e0
“Higher seasonal totals and earlier initiation of MPB application resulted in the greatest decrease in lint yield.”
✓ located verbatim in the source · abstract, characters 1278–1391

t0
“Cotton”
✓ located verbatim in the source · title, characters 26–32

Title

Differential Responses of Cotton Cultivars when Applying Mepiquat Pentaborate

Nathan B. O'Berry; Joel C. Faircloth; Michael A. Jones; et al. Agronomy Journal 2009. doi:10.2134/agronj2007.0333

Other claims from this paper (9)

Intervention effect FM 960 BR July height fell 25% with MPB in South Carolina in 2006.
Intervention effect DP 444 BG/RR July height fell 12% with MPB.
Intervention effect DP 555 BG/RR July height fell 13% with MPB.
Observation Actual height reductions did not differ among cultivars.
Intervention effect MPB reduced harvest height by 8 to 34%.
Intervention effect MPB reduced height-to-node ratio by 10 to 32%.
Intervention effect MPB enhanced maturity across cultivars.
Intervention effect MPB reduced lint yield by 3.7 to 8.5%.
Association Earlier MPB initiation produced the greatest lint yield decrease.

Recommendationauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

Selection for yield could decrease meat and oil content.

Taxon: peanutArachis hypogaeat0
Outcome: meat and oil contente0
Direction: decreasee0

Verbatim

e0
“but would decrease meat and oil content”
✓ located verbatim in the source · abstract, characters 1887–1926

t0
“Peanut”
✓ located verbatim in the source · title, characters 107–113

Title

Heritabilities and Genetic Correlations for Yield and Quality Traits of Advanced Generations in a Cross of Peanut1

Hee Yang Chiow; J. C. Wynne Peanut Science 1983. doi:10.3146/i0095-3679-10-1-5

Other claims from this paper (16)

Observation Progenies varied substantially for yield, seed weight, meat and protein content.
Observation Progenies varied less for fruit length, fruit weight, oil content and maturity index.
Observation Heritability was highest for yield, meat and protein content.
Observation Heritability was intermediate for fruit length, fruit weight and seed weight.
Observation Heritability was lowest for oil content and maturity index.
Observation Genotypic correlations were generally higher than phenotypic correlations.
Association Maturity index showed low phenotypic correlations with yield and yield components.
Association Fruit size was highly correlated with seed weight.
Association Fruit size and seed weight were significantly correlated with yield.
Association Protein content and yield correlations were low.
Association Oil content was negatively correlated with yield.
Recommendation Selecting yield components was less effective than selecting yield directly.
Recommendation Selection for yield could increase protein content and fruit and seed traits.
Observation Transgressive segregation occurred across all studied traits.
Observation Progeny trait means were closer to the Spanish than the Virginia parent.
Observation Some progeny combined early maturity, high yield and large fruit.

Recommendationauthor interpretationoriginal resultnegativebasis n/a

Claim · model-written summary

The authors suggest ethephon may decrease grain yield without lodging.

Taxon: maizeZea mayst0
Outcome: decrease grain yielde0
Qualifier: in the absence of lodginge0

Verbatim

e0
“may decrease grain yield in the absence of lodging because of its potential deleterious effect on kernel number and growth”
✓ located verbatim in the source · abstract, characters 1708–1830

t0
“Maize”
✓ located verbatim in the source · title, characters 39–44

Title

Growth, Yield, and Yield Components of Maize as Influenced by Ethephon

W. J. Cox; H. F. Andrade Crop Science 1988. doi:10.2135/cropsci1988.0011183x002800030023x

Other claims from this paper (11)

Intervention effect Ethephon did not affect phytomass, NAR, or CGR in the dry 1985 season.
Intervention effect Ethephon reduced phytomass, NAR, and CGR in the wet 1986 season.
Association Plant density and hybrid did not influence growth response to ethephon.
Intervention effect Ethephon reduced lodging by 64%.
Intervention effect Ethephon had no overall effect on grain yield.
Intervention effect Ethephon increased Cornell 281 grain yield from 7.78 to 8.24 Mg ha −1.
Intervention effect Ethephon decreased Pioneer 3901 grain yield from 9.63 to 8.56 Mg ha −1.
Intervention effect Ethephon increased Cornell 281 kernel weight from 263 to 266 mg.
Intervention effect Ethephon decreased Pioneer 3901 kernel weight from 282 to 264 mg.
Intervention effect Ethephon significantly decreased kernels per ear in both hybrids from 494 to 474.
Recommendation The authors suggest ethephon may enhance maize yield where lodging is a problem.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Local tarom was the most cold-sensitive variety, with 29% yield decrease.

Taxon: riceOryza sativat0
Material: local tarom varietye0
Outcome: yield decreasee0
Direction: moste0
Value: 29%e0

Verbatim

e0
“the most sensitive one with most percentage of yield decrease (29%) was local tarom variety.”
✓ located verbatim in the source · abstract, characters 1547–1639

t0
“Rice Cultivars”
✓ located verbatim in the source · title, characters 62–76

Title

Temperature Effect on Yield and Yield Components of Different Rice Cultivars in Flowering Stage

R. Ghadirnezhad; A. Fallah International Journal of Agronomy 2014. doi:10.1155/2014/846707

Other claims from this paper (5)

Intervention effect Low temperature significantly affected panicle number.
Intervention effect Low temperature significantly affected panicle length.
Intervention effect Low temperature significantly affected numbers of full, empty and total grains.
Intervention effect Low temperature significantly reduced rice yield.
Observation Shirudi was the most cold-tolerant variety, with 19% yield decrease.

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

The largest projected alfalfa yield decrease is 9% in Siirt.

Taxon: alfalfaMedicago sativae1
Outcome: yielde0
Direction: decreasee0
Value: 9%e0
Setting: Siirte0

Verbatim

e0
“the maximum yield decrease will be noted in Siirt (9%)”
✓ located verbatim in the source · abstract, characters 1674–1728

e1
“Alfalfa yield for years 2020-2060”
✓ located verbatim in the source · abstract, characters 1019–1052

Title

Estimation of Alfalfa (Medicago sativa l.) yield under RCP4.5 and RCP8.5 climate change projections with ANN in Turkey

MuhammetAli Pekin; NurdanSahin Demirbag; KhalidMahmood Khawar; et al. MAUSAM 2023. doi:10.54302/mausam.v74i3.5598

Other claims from this paper (5)

Method / resource The ANN calculated alfalfa yield with a coefficient of determination of 0.827.
Method / resource The ANN calculated alfalfa yield with a Nash-Sutcliff coefficient of 0.813.
Association Projected alfalfa yield increases where precipitation increases.
Association Projected alfalfa yield decreases where precipitation decreases.
Observation The largest projected alfalfa yield increase is 6% in Artvin.

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Yield decrease was associated with shorter growth duration together with increasing temperature.

Taxon: riceOryza sativae0
Treatment: increasing temperaturee7
Outcome: Decrease in yielde7
Direction: Decreasee7
Qualifier: lowering growth duratione7

Verbatim

e0
“impact of climate change on rice production”
✓ located verbatim in the source · abstract, characters 529–572

e7
“Decrease in yield were mainly associated with lowering growth duration along with increasing temperature”
✓ located verbatim in the source · abstract, characters 2152–2256

Title

Modeling the sensitivity of CERES-Rice model: An experience of Nepal

A Lamsal; LP Amgai; A Giri Agronomy Journal of Nepal 2013. doi:10.3126/ajn.v3i0.8982

Other claims from this paper (15)

Method / resource The CSM-CERES-Rice model had an RMSE of 747.35 kg/ha for grain yield.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.793 for grain yield.
Method / resource The CSM-CERES-Rice model had an RMSE of 1.106 days for anthesis.
Method / resource The CSM-CERES-Rice model had an RMSE of 2.58 days for maturity.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.99 for anthesis and maturity.
Method / resource The CSM-CERES-Rice model had an RMSE of 0.004 kg/ha for individual grain weight.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.633 for individual grain weight.
Intervention effect Under decreasing climatic scenarios, simulated Prithivi yield increased by 62%.
Intervention effect Under decreasing climatic scenarios, simulated Masuli yield increased by 41%.
Intervention effect Under decreasing climatic scenarios, simulated Sunaulo Sugandha yield increased by 42%.
Intervention effect Under increasing climate change scenarios, simulated Prithivi yield declined by 80%.
Intervention effect Under increasing climate change scenarios, simulated Masuli yield declined by 46%.
Intervention effect Under increasing climate change scenarios, simulated Sunaulo Sugandha yield declined by 40%.
Association Temperature was the most sensitive factor for simulated rice yield potential compared with other factors.
Association Hybrid rice showed more vulnerability to climate change than the other cultivars.

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“yield decrease”

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