Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The decrease in kernels per ear largely caused the decrease in maize grain yield.

Taxon: maizeZea mayst0
Outcome: decrease in grain yielde4
Qualifier: largely caused by the decrease in kernels per eare4

Verbatim

t0
“Differential responses of maize yield”
✓ located verbatim in the source · title, characters 0–37

e4
“The decrease in grain yield was largely caused by the decrease in kernels per ear (r2 = 0.88, P < 0.001)”
✓ located verbatim in the source · abstract, characters 909–1013

Title

Differential responses of maize yield to drought at vegetative and reproductive stages

MI Na; Fu CAI; Yushu ZHANG; et al. Plant Soil and Environment 2018. doi:10.17221/141/2018-pse

Other claims from this paper (6)

Intervention effect Progressive drought significantly reduced maize grain yield during either the vegetative or the reproductive stage.
Intervention effect Reproductive-stage progressive drought reduced grain yield by 41.6-46.6%.
Intervention effect Vegetative-stage progressive drought reduced grain yield by 18.6-26.2%.
Intervention effect The grain yield reduction from reproductive-stage drought was greater than that from vegetative-stage drought.
Association The decrease in kernels per ear was associated with the decrease in grain yield (r2 = 0.88, P < 0.001).
Recommendation Guaranteeing water supply for maize during the reproductive stage is crucially important to avoid yield loss.

Method / resourceauthor interpretationoriginal resultsimulated

Claim · model-written summary

Isareg was judged appropriate for estimating grain yield decrease.

Taxon: MAIZEZea mayst0
Outcome: appropriate to estimate the grain yield decreasee0

Not reportedComparatorValue

Verbatim

e0
“The Isareg model is appropriate to estimate the grain yield decrease”
✓ located verbatim in the source · abstract, characters 960–1028

t0
“WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST”
✓ located verbatim in the source · title, characters 0–78

Title

WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST

CLÍSTENES ANTÔNIO GUADAGNIN; EDGAR RICARDO SCHOFFEL; HELVIO DEBLI CASALINHO; et al. Revista Brasileira de Milho e Sorgo 2017. doi:10.18512/1980-6477/rbms.v16n1p61-71

Other claims from this paper (6)

Observation The Isareg model estimated average maize grain yield decrease of 25.1%.
Observation The largest maize yield decrease occurred with early August sowing.
Observation The smallest maize yield decrease occurred with late January to February sowings.
Observation Yield decrease varied by up to 3.9% among maturation cycles.
Method / resource Isareg overestimated yield decrease when relative evapotranspiration exceeded 0.8.
Observation A 40% grain yield decrease had a 10.5% occurrence probability.

Observationobservedoriginal resultnegativesimulated

Claim · model-written summary

The Isareg model estimated average maize grain yield decrease of 25.1%.

Taxon: MAIZEZea mayst0
Outcome: grain yielde0
Direction: decreasee0
Value: 25.1%e0

Verbatim

e0
“The model estimated an average grain yield decrease of 25.1%.”
✓ located verbatim in the source · abstract, characters 694–755

t0
“WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST”
✓ located verbatim in the source · title, characters 0–78

Title

WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST

CLÍSTENES ANTÔNIO GUADAGNIN; EDGAR RICARDO SCHOFFEL; HELVIO DEBLI CASALINHO; et al. Revista Brasileira de Milho e Sorgo 2017. doi:10.18512/1980-6477/rbms.v16n1p61-71

Other claims from this paper (6)

Observation The largest maize yield decrease occurred with early August sowing.
Observation The smallest maize yield decrease occurred with late January to February sowings.
Observation Yield decrease varied by up to 3.9% among maturation cycles.
Method / resource Isareg was judged appropriate for estimating grain yield decrease.
Method / resource Isareg overestimated yield decrease when relative evapotranspiration exceeded 0.8.
Observation A 40% grain yield decrease had a 10.5% occurrence probability.

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

The decrease in kernels per ear was associated with the decrease in grain yield (r2 = 0.88, P < 0.001).

Taxon: maizeZea mayst0
Organ / stage: eare4
Outcome: kernels per eare4
Direction: decreasee4
Value: r2 = 0.88e4

Verbatim

t0
“Differential responses of maize yield”
✓ located verbatim in the source · title, characters 0–37

e4
“The decrease in grain yield was largely caused by the decrease in kernels per ear (r2 = 0.88, P < 0.001)”
✓ located verbatim in the source · abstract, characters 909–1013

Title

Differential responses of maize yield to drought at vegetative and reproductive stages

MI Na; Fu CAI; Yushu ZHANG; et al. Plant Soil and Environment 2018. doi:10.17221/141/2018-pse

Other claims from this paper (6)

Intervention effect Progressive drought significantly reduced maize grain yield during either the vegetative or the reproductive stage.
Intervention effect Reproductive-stage progressive drought reduced grain yield by 41.6-46.6%.
Intervention effect Vegetative-stage progressive drought reduced grain yield by 18.6-26.2%.
Intervention effect The grain yield reduction from reproductive-stage drought was greater than that from vegetative-stage drought.
Mechanism The decrease in kernels per ear largely caused the decrease in maize grain yield.
Recommendation Guaranteeing water supply for maize during the reproductive stage is crucially important to avoid yield loss.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early ethephon application caused less yield decrease than later application.

Taxon: cornZea mays subsp. mayst0
Treatment: Early applicatione0
Outcome: yielde0
Direction: less yield decreasee0
Comparator: later timingse0

Verbatim

e0
“Early application showed less yield decrease than later timings.”
✓ located verbatim in the source · abstract, characters 1121–1185

t0
“Corn”
✓ located verbatim in the source · title, characters 47–51

Title

Use of Ethephon as a Plant Growth Regulator in Corn Production

J. M. Gaska; E. S. Oplinger Crop Science 1988. doi:10.2135/cropsci1988.0011183x002800060024x

Other claims from this paper (10)

Intervention effect Ethephon increased yields of hybrid 3377 up to 280 g ha −1.
Intervention effect Other tested corn hybrids showed decreased yields under ethephon.
Intervention effect Hybrid 3377 yield increased 0.77 Mg ha −1 (7.6%) with 280 g ha −1 in 1985.
Intervention effect High-rate ethephon increased grain yield per ear by 3% in hybrid 3377.
Intervention effect High-rate ethephon decreased grain yield per ear by 12% in hybrid 3737.
Intervention effect High-rate ethephon decreased plant and ear height by up to 20%.
Intervention effect High-rate ethephon decreased lodging by 63% in 1986.
Intervention effect High-rate ethephon decreased harvesting time by 20% in 1986.
Recommendation Under lodging-prone conditions, the authors suggest high-rate early ethephon may preserve yield and ease harvesting.
Recommendation Without lodging, high-rate late ethephon may reduce yield in some hybrids.

Observationobservedoriginal resultsimulated

Claim · model-written summary

A 40% grain yield decrease had a 10.5% occurrence probability.

Taxon: MAIZEZea mayst0
Outcome: probability of occurrencee0
Value: 10.5%e0
Qualifier: 40% of grain yield decreasee0

Verbatim

e0
“The levels of 40% of grain yield decrease present 10.5% of probability of occurrence.”
✓ located verbatim in the source · abstract, characters 1116–1201

t0
“WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST”
✓ located verbatim in the source · title, characters 0–78

Title

WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST

CLÍSTENES ANTÔNIO GUADAGNIN; EDGAR RICARDO SCHOFFEL; HELVIO DEBLI CASALINHO; et al. Revista Brasileira de Milho e Sorgo 2017. doi:10.18512/1980-6477/rbms.v16n1p61-71

Other claims from this paper (6)

Observation The Isareg model estimated average maize grain yield decrease of 25.1%.
Observation The largest maize yield decrease occurred with early August sowing.
Observation The smallest maize yield decrease occurred with late January to February sowings.
Observation Yield decrease varied by up to 3.9% among maturation cycles.
Method / resource Isareg was judged appropriate for estimating grain yield decrease.
Method / resource Isareg overestimated yield decrease when relative evapotranspiration exceeded 0.8.

Observationobservedoriginal resultnegativesimulated

Claim · model-written summary

The largest maize yield decrease occurred with early August sowing.

Taxon: MAIZEZea mayst0
Treatment: initial sowing of Auguste0
Outcome: decreasee0
Direction: biggeste0
Setting: Auguste0

Verbatim

e0
“The biggest decrease took place in the initial sowing of August”
✓ located verbatim in the source · abstract, characters 756–819

t0
“WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST”
✓ located verbatim in the source · title, characters 0–78

Title

WATER DEFICIENCY ON THE MAIZE GRAIN YIELD DECREASE IN THE CATARINENSE FAR WEST

CLÍSTENES ANTÔNIO GUADAGNIN; EDGAR RICARDO SCHOFFEL; HELVIO DEBLI CASALINHO; et al. Revista Brasileira de Milho e Sorgo 2017. doi:10.18512/1980-6477/rbms.v16n1p61-71

Other claims from this paper (6)

Observation The Isareg model estimated average maize grain yield decrease of 25.1%.
Observation The smallest maize yield decrease occurred with late January to February sowings.
Observation Yield decrease varied by up to 3.9% among maturation cycles.
Method / resource Isareg was judged appropriate for estimating grain yield decrease.
Method / resource Isareg overestimated yield decrease when relative evapotranspiration exceeded 0.8.
Observation A 40% grain yield decrease had a 10.5% occurrence probability.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Maize yield did not decrease with increasing plant diversity.

Taxon: MaizeZea mayse0
Treatment: increasing plant diversitye0
Outcome: yielde0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Maize yield did not decrease with increasing plant diversity.”
✓ located verbatim in the source · abstract, characters 860–921

Title

Benefits of a maize–bean–weeds mixed cropping system in Urubamba Valley, Peruvian Andes

Ernesto Gianoli; Isaías Ramos; Armando Alfaro-Tapia; et al. International Journal of Pest Management 2006. doi:10.1080/09670870600796722

Other claims from this paper (7)

Observation The main recorded maize pests were Diabrotica spp., Carpophilus sp. and Pagiocerus frontalis.
Intervention effect Overall pest abundance did not differ among crop diversity treatments.
Intervention effect Crop diversity significantly reduced maximum Carpophilus abundance.
Intervention effect Crop diversity significantly reduced maximum Pagiocerus abundance.
Observation The main beneficial arthropods were Paratriphleps sp., ladybirds and spiders.
Intervention effect Beneficial arthropod density did not differ among treatments.
Recommendation The authors recommend traditional intercropping as a valuable alternative to pesticides for resource-poor Andean farmers.

Associationobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

The maize yield decrease from delayed emergence was not statistically related to yield stability zones.

Taxon: maizeZea mayse0
Outcome: maize yielde0
Direction: decreasee0
Setting: yield stability zonese0

Not reportedTreatmentComparator

Verbatim

e0
“The decrease in maize yield caused by the delay in emergence was not statistically related to yield stability zones”
✓ located verbatim in the source · abstract, characters 2129–2244

Title

Plant emergence and maize (Zea mays L.) yield across multiple farmers’ fields

S. Albarenque; B. Basso; O. Davidson; et al. Field Crops Research 2023. doi:10.1016/j.fcr.2023.109090

Other claims from this paper (7)

Observation Individual maize emergence occurred 3 to 31 days after planting.
Association Emergence timing variation affected yield and yield components more than within-row spacing variation.
Association The impact of emergence variation was generally larger in stable low-yield areas.
Association Plant yield fell by 7% per day of emergence delay.
Association Grain number fell by 6% per day of emergence delay.
Association Final crop yield fell by 8.5% per day of emergence delay.
Association Delayed emergence tended to have a more negative impact in low yield stability zones.

Recommendationhypothesisoriginal resultpositivebasis n/a

Claim · model-written summary

For high-yield producers, moderate stover harvest may decrease fuel use.

Taxon: CornZea mays subsp. mayst0
Treatment: moderate stover harveste6
Outcome: fuel usee6
Direction: decreasee6

Verbatim

e6
“moderate stover harvest may actually decrease fuel use”
✓ located verbatim in the source · abstract, characters 1422–1476

t0
“Corn Grain, Stover Yield”
✓ located verbatim in the source · title, characters 0–24

Title

Corn Grain, Stover Yield and Nutrient Removal Validations at Regional Partnership Sites

Douglas L. Karlen; Stuart J. Birrell; Jane M. F. Johnson; et al. Iowa State University Digital Repository (Iowa State University) 2012

Other claims from this paper (6)

“yield decrease”

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