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“total ear weight”

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Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Plant density significantly affected total dry weight, kernel and ear counts, fresh weight and ear length.

Taxon: cornZea mays subsp. mayse1
Treatment: plant densitye0
Outcome: total dry weight, number of kernels per ear, number of ears per row, total fresh weight and ear lengthe0

Not reportedDirection

Verbatim

e0
“plant density had a significant effect on total dry weight, number of kernels per ear, number of ears per row, total fresh weight and ear length (P<0.01)”
✓ located verbatim in the source · abstract, characters 758–911

e1
“corn (hybrid S.C.704)”
✓ located verbatim in the source · abstract, characters 103–124

Title

THE EFFECTS OF SOWING DENSITY AND SOWING PATTERN ON YIELD, YIELD COMPONENTS AND SOME AGRONOMIC CHARACTERISTICS OF CORN (ZEA MAYS L.), H.T.W.C. 647 CULTIVAR

Alireza Saberi; D Mazaheri; H Heidari Sharif 2006

Other claims from this paper (7)

Intervention effect Double-row planting significantly increased total dry matter, kernel counts and ear length over single-row planting.
Association Biomass increased with plant density.
Intervention effect Grain yield peaked at 8.28 ton ha -1 with 75,000 plants ha -1 and 20 cm double rows.
Intervention effect Ear dry weight peaked at 3.29 ton ha -1 with 75,000 plants ha -1 and 20 cm double rows.
Intervention effect Harvest index peaked at 46.21% with 75,000 plants ha -1 and 20 cm double rows.
Intervention effect Total dry weight peaked at 18.38 ton ha -1 with 85,000 plants ha -1 and 20 cm double rows.
Recommendation The authors suggest double-row planting may decrease interplant competition and increase yield.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Seaweed treatment significantly increased seed corn total plant and ear weight and harvest index.

Taxon: cornZea mays subsp. mayse0
Treatment: seaweed treatmente0
Outcome: plant total weight, ear weight, harvest indexe0
Direction: increasee0

Not reportedComparator

Verbatim

e0
“seaweed treatment resulted in significant increase in some indicators of forage corn (stem weight, leaf weight, ear weight, plant total height, harvest index, height, and chlorophyll a) and seed corn (plant total weight, ear weight, harvest index, thousand seed weight, corn stem weight, row number per ear, seed number per row, ear length, and ear diameter)”
✓ located verbatim in the source · abstract, characters 332–690

Title

Determination of effect of different rates of seaweed extract on growth and performance of corn (Sc704) in Gorgan.

Tina . Partani International Journal of Agriculture and Crop Sciences (IJACS) 2013

Other claims from this paper (5)

Intervention effect Seaweed treatment significantly increased forage corn stem, leaf and ear weight.
Intervention effect Seaweed treatment significantly increased forage corn height and harvest index.
Intervention effect Seaweed treatment significantly increased forage corn chlorophyll a.
Intervention effect Seaweed treatment significantly increased seed corn thousand seed weight, stem weight and row number per ear.
Intervention effect Seaweed treatment significantly increased seed number per row, ear length and ear diameter.

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Total kernels per ear had a high direct effect on total grain weight, p = 0.78.

Organ / stage: total number of kernels per eare0
Outcome: total grain weighte0
Direction: highest direct effectse0
Value: p = 0.78e0

Not reportedTaxon

Verbatim

e0
“100‐grain weight and total number of kernels per ear, revealed highest direct effects on total grain weight ( p = 0.74 and p = 0.78, respectively)”
✓ located verbatim in the source · abstract, characters 884–1030

Title

Sequential Path Model for Determining Interrelationships among Grain Yield and Related Characters in Maize

S. A. Mohammadi; B. M. Prasanna; N. N. Singh Crop Science 2003. doi:10.2135/cropsci2003.1690

Other claims from this paper (7)

Method / resource The sequential path model better discerned predictor effects than the conventional path model.
Association 100-grain weight had a high direct effect on total grain weight, p = 0.74.
Method / resource Ear length, ear diameter, kernel row number and kernels per row fit as second-order variables.
Observation All direct effects were significant in bootstrap analysis.
Method / resource Sequential path model fit was better across the analyzed datasets.
Observation Predicted-response correlations between seasons were high except for ear length and kernels per row.
Method / resource The model was applicable to two additional datasets analyzed in 2000.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Eight beetles per ear significantly reduced total kernel weight relative to noninfested ears.

Taxon: CornZea mays subsp. mayst0
Treatment: Caging eight beetles per eare0
Interactor: beetlesColeopterae0pest
Outcome: total kernel weighte0
Direction: reducede0
Comparator: noninfested earse0

Verbatim

e0
“Caging eight beetles per ear significantly reduced total kernel weight compared with noninfested ears.”
✓ located verbatim in the source · abstract, characters 833–935

t0
“Field Corn”
✓ located verbatim in the source · title, characters 75–85

Title

Effects of Japanese Beetle (Coleoptera: Scarabaeidae) and Silk Clipping in Field Corn

Sandy Steckel; S. D. Stewart; K. V. Tindall Journal of Economic Entomology 2013. doi:10.1603/ec13042

Other claims from this paper (9)

Intervention effect Daily manual silk clipping had modest effects on corn yield parameters.
Intervention effect Sustained manual clipping three times daily affected total kernel weight during early silking.
Intervention effect Caged Japanese beetles affected total kernel weight during early silking.
Intervention effect Three daily clips during the first five days of silking affected kernel number, total kernel weight, and individual kernel weight.
Intervention effect Caged beetle feeding reduced kernels per ear depending on beetle number.
Association Drought before anthesis appeared to magnify the impact of beetle silk clipping.
Observation Pollinated kernels increased in size, partly compensating for reduced pollination.
Observation Substantial yield and pollination effects required sustained clipping in the first silking week under good growing conditions.
Recommendation The authors considered the stated three-beetle treatment threshold adequate.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Cultivars differed significantly in first ear height, total leaf weight and stover yield.

Taxon: silage maizee0
Outcome: first ear height, total leaf weight, stover yielde1

Not reportedDirection

Verbatim

e0
“silage maize varieties (Zea mays L.)”
✓ located verbatim in the source · abstract, characters 170–206

e1
“difference between cultivars was significant or very important in terms of first ear height, total leaf weight, stover yield”
✓ located verbatim in the source · abstract, characters 494–618

Title

Silage Yield Potential of Some Corn (Zea mays. indendata Sturt.) Varieties

ŞİMŞEK SOYSAL, Ayşe Özge; ÖNER, Fatih; ŞAHAN, Hacı DOAJ (DOAJ: Directory of Open Access Journals) 2022. doi:10.5281/zenodo.7391909

Other claims from this paper (2)

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Ear-axis total vascular bundle area correlated positively with 1000-grain weight.

Taxon: summer maizeZea mayst0
Organ / stage: ear-axise0
Outcome: 1000-grain weighte0
Direction: positively correlatede0

Verbatim

e0
“The total area of vascular bundles of ear-axis were significantly and positively correlated with 1000-grain weight”
✓ located verbatim in the source · abstract, characters 1754–1868

t0
“summer maize (Zea mays L.)”
✓ located verbatim in the source · title, characters 98–124

Title

Effect of potassium application on vascular tissue structure and material transport properties in summer maize (Zea mays L.)

Jie SONG; Hao REN; Bin ZHAO; et al. ACTA AGRONOMICA SINICA 2022. doi:10.3724/sp.j.1006.2022.23005

Other claims from this paper (9)

Intervention effect Leaf thickness, leaf vein cross-sectional area, and xylem area rose then fell with potassium rate and peaked at K3.
Intervention effect Potassium increased basal stalk and ear-pedicel vascular bundle cross-sectional area, number, and area.
Intervention effect The stalk vascular area ratio was highest under K2.
Intervention effect The ear-pedicel vascular ratio was higher under K2 and K4 than under other treatments.
Intervention effect Ear-axis vascular bundle number and area first increased and then decreased with potassium fertilization.
Intervention effect Ear-axis total vascular bundle area was higher under K2 and K3 than other treatments.
Intervention effect Potassium increased stem and ear-pedicel bleeding intensity, highest under K2 at filling.
Association Stem and ear-pedicel vascular bundle area and number correlated positively with grain yield.
Mechanism The authors conclude that K2 improved vascular development, sap flow, and grain yield.

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Total yield is positively correlated with kernel number per row and 10-ear weight under drought condition.

Taxon: maizeZea mayst0
Treatment: drought conditione3
Outcome: total yielde3
Direction: positive correlatede3
Qualifier: kernel no./row and 10 ear weighte3

Verbatim

t0
“Effect of drought stress on yield and yield components of maize hybrids”
✓ located verbatim in the source · title, characters 0–71

e3
“only kernel no./row and 10 ear weight were significantly positive correlated with total yield under drought condition”
✓ located verbatim in the source · abstract, characters 757–874

Title

Effect of drought stress on yield and yield components of maize hybrids

Khodadad Mostafavi; Morteza Firoozi; Seyed Mohammad; et al. Scientific Research and Essays 2013. doi:10.5897/sre11.1730

Other claims from this paper (5)

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

ear weight correlated with total cavities (r=-0.321).

Taxon: field corne1
Interactor: Ostrinia nubilalis (Hübner)Ostrinia nubilalise1pest
Outcome: ear weighte0
Value: -0.321e0
Comparator: total cavitiese0

Not reportedDirection

Verbatim

e0
“Statistically, significant correlations were obtained between shelled weight and ear weight (0.986), shelled weight and total cavities (-0.323 and -0.112), ear weight and total cavities (-0.321), shelled weight and entrance holes (-0.075), and entrance holes and total cavities (0.906).”
✓ located verbatim in the source · abstract, characters 484–770

e1
“A method of producing a Poisson distribution of egg masses over plants and time was developed for artificial infestation of field corn that simulates natural oviposition by Ostrinia nubilalis (Hübner).”
✓ located verbatim in the source · abstract, characters 0–201

Title

European Corn Borer: Yield Losses and Damage Resulting from a Simulated Natural Infestation123

R. E. Lynch; J. F. Robinson; E. C. Berry Journal of Economic Entomology 1980. doi:10.1093/jee/73.1.141

Other claims from this paper (8)

Method / resource The Poisson egg mass distribution simulated natural corn borer oviposition on field corn.
Intervention effect Yield losses were greater with stage 5 than stage 2 infestation.
Intervention effect damage were greater with stage 5 than stage 2 infestation.
Association shelled weight correlated with ear weight (r=0.986).
Association shelled weight correlated with total cavities (r=-0.323).
Association shelled weight correlated with total cavities (r=-0.112).
Association shelled weight correlated with entrance holes (r=-0.075).
Association entrance holes correlated with total cavities (r=0.906).

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Plant density significantly affected dry weight, kernel and row counts, fresh weight and ear length.

Taxon: CornZea mays subsp. mayst0
Treatment: plant densitye0
Outcome: total dry weight, number of kernel per ear, number of row per year, total fresh weight, ear lengthe0

Not reportedComparatorDirection

Verbatim

e0
“plant density had a significant effect on total dry weight, number of kernel per ear, number of row per year, total fresh weight, ear length at 0.01 probability level and with an increase in plant density amount of biomass increased”
✓ located verbatim in the source · abstract, characters 741–973

t0
“Silage Corn”
✓ located verbatim in the source · title, characters 75–86

Title

Study and Determination of the Best Plant Density and Planting Patterns of Silage Corn (Zea mays L.), H.S.C. 704 Cultivar

Alireza Saberi International Journal of Genomics and Data Mining 2018. doi:10.29011/2577-0616.000120

Other claims from this paper (4)

Intervention effect Double rows increased total dry matter, kernel counts and ear length over single rows.
Association Biomass increased as plant density increased.
Intervention effect The 95000 density and double rows produced the highest forage yield of 93.31-ton ha-1.
Recommendation Authors suggest double rows may reduce interplant competition and increase yield.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The first sowing date produced higher leaf area index and ear, tassel and total dry weight.

Taxon: cornZea mays subsp. mayst0
Treatment: first sowing datee0
Outcome: leaf area index and dry weight (ear, tassel and total)e0
Direction: highere0

Not reportedComparator

Verbatim

e0
“The first sowing date outcome had a significantly higher leaf area index and dry weight (ear, tassel and total)”
✓ located verbatim in the source · abstract, characters 935–1046

t0
“Corn”
✓ located verbatim in the source · title, characters 91–95

Title

Effect of Different Rates of Nitrogen and Irrigation on Dry Matter and Nitrogen Content of Corn at Different Growth Stages During Two Sowing Dates

MOHAMED KIWAN; SAMIR AL-SOLAIMANI Journal of King Abdulaziz University-Meteorology Environment and Arid Land Agriculture Sciences 2003. doi:10.4197/met.14-1.2

Other claims from this paper (14)

Intervention effect The first sowing date had higher stem, ear and total plant nitrogen percentage.
Intervention effect Tassel nitrogen percentage was higher in the second sowing date.
Observation Dry matter variables other than tassel dry weight peaked at maturation.
Intervention effect N 3 gave the highest ear dry weight, 3202.9 kg/ha.
Intervention effect N 3 gave higher tassel dry weight, 232.3 kg/ha.
Intervention effect N 3 gave higher total dry weight, 6438.2 kg/ha.
Intervention effect N 3 gave higher leaf and stem nitrogen percentage of 1.98 gm/kg.
Intervention effect N 2 gave higher total nitrogen content, 2.9 gm/kg.
Intervention effect N 2 gave higher leaf nitrogen content, 2.84 gm/kg.
Intervention effect N 2 gave higher stem nitrogen content, 1.97 gm/kg.
Intervention effect N 2 gave a reported tassel nitrogen content of 1.67 gm/kg.
Intervention effect N 2 gave reported tassel nitrogen content of 1.56 gm/kg.
Intervention effect Irrigation regimes showed no significant effect on studied plant variables.
Intervention effect Nitrogen by irrigation interactions showed no significant effect on studied plant variables.

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