Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

Yield changes depended on kernel number changes.

Taxon: maizeZea mayse1
Outcome: Changes in yielde0
Comparator: changes in kernel numbere0

Not reportedDirection

Verbatim

e0
“Changes in yield were dependent upon changes in kernel number”
✓ located verbatim in the source · abstract, characters 1634–1695

e1
“maize ( Zea mays L.)”
✓ located verbatim in the source · abstract, characters 29–49

Title

Managing Density Stress to Close the Maize Yield Gap

Eric T. Winans; Tryston A. Beyrer; Frederick E. Below Frontiers in Plant Science 2021. doi:10.3389/fpls.2021.767465

Other claims from this paper (9)

Intervention effect Enhanced narrow-row management increased grain yield over standard management by 3.3 Mg ha –1, or 25%.
Intervention effect Narrow rows gave significant yield increases over the standard control.
Intervention effect Combined P-S-Zn and K-B fertility gave significant yield increases over the standard control.
Intervention effect Increasing population reduced the yield gap when other inputs were enhanced.
Intervention effect Increasing population alone did not increase yield without enhanced inputs.
Observation Kernel weight was heaviest under all enhanced factors at 79,000 plants ha –1.
Observation Kernel weight was lightest at 109,000 plants ha –1 with all other factors standard.
Association Each factor generally contributed more yield in combination with all enhanced factors than when added individually.
Association High-input management was fully valuable only with greater plant density.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Simulated yield changes matched field yield changes across irrigation levels.

Taxon: MaizeZea mayst0
Outcome: simulated yield changese0
Qualifier: different levels of irrigation levelse0
Comparator: yield changes in the fielde0

Verbatim

e0
“simulated yield changes by the use of model, at different levels of irrigation levels in the farm, corresponded with the yield changes in the field”
✓ located verbatim in the source · abstract, characters 562–709

t0
“Maize”
✓ located verbatim in the source · title, characters 14–19

Title

Evaluation of Maize Response to Less Irrigation Management Using SWAP Model

Ebrahim Amiri; Fahimeh Shirshahi DOAJ (DOAJ: Directory of Open Access Journals) 2018

Other claims from this paper (3)

Method / resource Model correlation coefficient exceeded 0.9.
Method / resource Model t-test index exceeded 0.05.
Method / resource Normalized root mean square error was 1.9-6.9.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Other mixtures showed nonlinear yield changes, possibly linked to species composition changes.

Material: Other mixturese0
Outcome: yielde0
Qualifier: likely related to changes in species compositione0

Not reportedTaxonDirection

Verbatim

e0
“Other mixtures had nonlinear changes in yield, likely related to changes in species composition.”
✓ located verbatim in the source · abstract, characters 1098–1194

Title

Long‐Term Biomass Yield and Species Composition in Native Perennial Bioenergy Cropping Systems

Jacob M. Jungers; Adam T. Clark; Kevin Betts; et al. Agronomy Journal 2015. doi:10.2134/agronj15.0014

Other claims from this paper (14)

Observation Without N, switchgrass monocultures had among the highest biomass yields, 5.1 Mg ha −1.
Observation Without N, the eight-species mixture had among the highest biomass yields, 5.1 Mg ha −1.
Intervention effect With N, switchgrass monocultures yielded 6.8 Mg ha −1.
Intervention effect With N, four-species grass mixtures yielded 6.4 Mg ha −1.
Association Switchgrass biomass yield increased over time.
Association Canada wild rye biomass yield decreased over time.
Association High diversity mixtures maintained stable biomass yield over time.
Observation Individual species relative abundance changed over time.
Observation Shannon diversity was constant except in the four-species legume mixture.
Observation Shannon diversity decreased in the four-species legume mixture.
Intervention effect N fertilization did not decrease species diversity over time.
Association Diversity was positively associated with biomass yield after establishment.
Association The diversity–yield association weakened with stand age.
Observation Native plant mixtures with or without N yielded similarly to highly productive monocultures.

Observationobservedoriginal resultmixedprojected

Claim · model-written summary

Extreme temperature changes create increased yield loss, but mean changes are neutral.

Outcome: yield losse0
Direction: increasede0
Qualifier: mean changes are neutrale0

Not reportedTaxon

Verbatim

e0
“extreme changes create increased yield loss, but mean changes are neutral”
✓ located verbatim in the source · abstract, characters 1182–1255

Title

Consequences of a Regional Nuclear Conflict for Crop Production in the Midwestern United States

Alan Robock; Christopher J. Kucharik 2011

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

N fertilizer changes affected yield less than climate changes.

Taxon: maizeZea mayst0
Treatment: changes in N fertilizer usee0
Outcome: maize yielde0
Direction: lessere0
Comparator: climate changese0

Verbatim

e0
“changes in N fertilizer use impacted maize yield to a lesser extent than climate changes”
✓ located verbatim in the source · abstract, characters 1817–1905

t0
“maize”
✓ located verbatim in the source · title, characters 67–72

Title

Nitrogen fertilizer use and climate interactions: Implications for maize yields in Kansas

Na Huang; Xiaomao Lin; Fei Lun; et al. Agricultural Systems 2024. doi:10.1016/j.agsy.2024.104079

Other claims from this paper (8)

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Relative PAR changes correlated significantly and positively with relative yield changes.

Treatment: PARe0
Outcome: relative changes in yielde0
Direction: positively correlatede0

Not reportedTaxon

Verbatim

e0
“Relative changes in PAR were significantly and positively correlated with relative changes in yield and G ave .”
✓ located verbatim in the source · abstract, characters 1035–1146

Title

Quantitative Relationship Between Solar Radiation and Grain Filling Parameters of Maize

Yunshan Yang; Guangzhou Liu; Xiaoxia Guo; et al. Frontiers in Plant Science 2022. doi:10.3389/fpls.2022.906060

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Changes in row width gave greater yield responses than changes in intra-row spacing.

Taxon: Garden peasLathyrus oleraceuse0
Treatment: Changes in row widthe3
Outcome: responsese3
Direction: greatere3

Verbatim

e0
“Garden peas (cv.”
✓ located verbatim in the source · abstract, characters 9–25

e3
“Changes in row width gave greater responses”
✓ located verbatim in the source · abstract, characters 335–378

Title

Yield of green peas

J. G. H. White; J. A. D. Anderson New Zealand Journal of Crop and Horticultural Science 1974. doi:10.1080/03015521.1974.10425754

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Changes in tobacco yield coincided with changes in chemical composition.

Taxon: tobaccoNicotiana tabacume0
Outcome: chemical compositione0
Comparator: yielde0

Not reportedDirection

Verbatim

e0
“When yield was affected there were also changes in chemical composition of tobacco.”
✓ located verbatim in the source · abstract, characters 548–631

Title

Weed community interference in burley oriental tobacco (Nicotiana tabacum)

P.C. LOLAS Weed Research 1986. doi:10.1111/j.1365-3180.1986.tb00670.x

Other claims from this paper (6)

Intervention effect Three or four weed-free weeks increased tobacco yield.
Intervention effect Weed interference beyond three to four weeks reduced tobacco yield.
Intervention effect Weed interference similarly affected fresh weight in burley and oriental tobacco.
Intervention effect Weed interference affected burley plant height and leaf number.
Intervention effect Previously weed-grown soil decreased tobacco growth despite adequate nutrition.
Intervention effect Decayed Amaranthus shoot residues harmed tobacco.

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Seasonal precipitation changes were significantly correlated with Boro yield changes.

Outcome: Boro yield changese0
Qualifier: seasonal precipitation changese0

Not reportedTaxonSettingDirection

Verbatim

e0
“there is a significant correlation between seasonal precipitation changes and Boro yield changes with notable correlation coefficients and similarity in the patterns”
✓ located verbatim in the source · abstract, characters 1055–1220

Title

A Geostatistical Approach to the Seasonal Precipitation Effect on Boro Rice Production in Bangladesh

Avit Kumar Bhowmik; Ana Cristina Costa International Journal of Geosciences 2012. doi:10.4236/ijg.2012.33048

Other claims from this paper (1)

Association High precipitation zones significantly conformed to high Boro yielding zones.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Individual-plant geographic PE differences were explained primarily by yield changes and secondarily by nutrient content changes.

Outcome: geographic PE differencese0
Qualifier: changes in yield, and secondarily by nutrient content changese0

Not reportedTaxonDirection

Verbatim

e0
“geographic PE differences over time were primarily explained by changes in yield, and secondarily by nutrient content changes”
✓ located verbatim in the source · abstract, characters 814–939

Title

Understanding Global and Historical Nutrient Use Efficiencies for Closing Maize Yield Gaps

Ignacio A. Ciampitti; Tony J. Vyn Agronomy Journal 2014. doi:10.2134/agronj14.0025

Other claims from this paper (6)

“yield changes”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics