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“decrease in density”

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Taxon: maize ✕

Taxon groups are the verbatim names found in the abstracts (case-insensitive), not normalised: maize, corn and Zea mays are separate groups here. The Organism view merges them through NCBI Taxonomy.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The mitochondrial pool decrease affected low- and intermediate-density mitochondria.

Taxon: maizeZea mayse1
Treatment: glucose-starvede1
Outcome: low- and intermediate-density mitochondriae0
Direction: decreasee0
Comparator: higher-density mitochondriae0

Verbatim

e0
“this decrease affected low- and intermediate-density mitochondria, but not higher-density mitochondria”
✓ located verbatim in the source · abstract, characters 1358–1460

e1
“preparations from glucose-starved maize root tips”
✓ located verbatim in the source · abstract, characters 1131–1180

Title

Effects of Glucose Starvation on Mitochondrial Subpopulations in the Meristematic and Submeristematic Regions of Maize Root

Ivan Couée; Murielle Jan; Jean-Pierre Carde; et al. PLANT PHYSIOLOGY 1992. doi:10.1104/pp.100.4.1891

Other claims from this paper (10)

Observation Maize root-tip mitochondria were heterogeneous on Percoll density gradients.
Observation The mitochondrial ultrastructure was consistent with different maturation stages during cell development.
Observation Higher-density mitochondria had many cristae and a dense matrix.
Observation Higher-density mitochondria had classic respiratory properties but low ADP/O ratios.
Observation Lower-density mitochondria had few cristae and a clear matrix.
Observation Lower-density mitochondria respired slowly with weak respiratory control.
Intervention effect Higher-density mitochondria retained ultrastructure and most respiratory properties during glucose starvation.
Intervention effect Lower- and intermediate-density mitochondria were absent after glucose starvation.
Intervention effect Total mitochondrial protein per root tip decreased during glucose starvation.
Observation A significant functional mitochondrial pool remained in maize root tips during early glucose starvation.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 45 cm spacing, maize yield tended to decrease with increasing density in 2014.

Taxon: maizeZea mayst0
Treatment: increasing plant densitiese0
Outcome: yielde0
Direction: decreasing tendencye0
Setting: 2014e0

Not reportedComparator

Verbatim

t0
“maize”
✓ located verbatim in the source · title, characters 43–48

e0
“in 2014, the yield showed decreasing tendency parallel to the increasing plant densities”
✓ located verbatim in the source · abstract, characters 1611–1699

Title

Effect of plant density and row spacing on maize grain yield on calcareous chernozem soil

Eszter Murányi Repository of the Academy's Library (Library of the Hungarian Academy of Sciences) 2015

Other claims from this paper (7)

Observation Maize hybrids differed significantly in yield in both study years.
Observation In 2013, hybrids yielded highly at 45 cm row spacing and 90 000 plants per ha.
Observation Maize yield in 2014 decreased significantly relative to 2013.
Intervention effect At 45 cm spacing, increasing plant density raised maize yield in 2013.
Observation At 45 cm spacing in 2014, densities of 50 000 and 65 000 plants ha -1 were more favorable.
Observation At 76 cm row spacing, maize hybrids reached maximum yield at 80 327 plants ha -1 in 2013.
Observation At 76 cm row spacing, maize hybrids reached maximum yield at 85 845 plants ha -1 in 2014.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher crop density decreased grains per row.

Taxon: maizeZea mayst0
Treatment: density increasee0
Outcome: grain number in a rowe0
Direction: decreasee0

Verbatim

t0
“maize plants”
✓ located verbatim in the source · title, characters 12–24

e0
“With density increase of the crops, occurs a decrease in grain number in a row”
✓ located verbatim in the source · abstract, characters 398–476

Title

Response of maize plants to seeding rates under conditions of typical black soil

E.A. Zakharchenko; S.V. Petrenko; S.I. Berdin; et al. Zenodo (CERN European Organization for Nuclear Research) 2023. doi:10.5281/zenodo.7966139

Other claims from this paper (6)

Association Cob row number and grains per row depended more on hybrid than seeding rate.
Association Weather significantly affected grain number.
Association Weather significantly affected maize grain yield.
Recommendation The authors recommend 90,000 seeds per hectare for Zorianyi.
Recommendation The authors recommend 80,000 seeds per hectare for Leleka.
Recommendation The authors recommend 70,000 seeds per hectare for Donor MV.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher density decreased yield and yield components per plant.

Taxon: MaizeZea mayse1
Treatment: increase in densitye0
Outcome: yield and yield components per plante0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“increase in density resulted in increase in yield per hectare and decrease in yield and yield components per plant”
✓ located verbatim in the source · abstract, characters 430–544

e1
“Maize (Zea mays)”
✓ located verbatim in the source · abstract, characters 126–142

Title

Evaluation of Plant Density and Nitrogen Fertilizer on Yield, Yield Components and Growth of Maize

Saeid Hokmalipour; Raouf Seyed Sharifi; Shahzad Jamaati-e-Somarin; et al. http://www.idosi.org/wasj/wasj8(9)/19.pdf 2010

Other claims from this paper (15)

Intervention effect Higher density increased yield per hectare.
Intervention effect Higher nitrogen increased yield and yield components.
Intervention effect Higher nitrogen increased leaf appearance rate.
Intervention effect Higher nitrogen decreased phyllochron.
Intervention effect Higher density increased phyllochron.
Intervention effect Higher density decreased leaf appearance rate.
Intervention effect The lowest density with highest nitrogen gave the highest leaf appearance rate.
Intervention effect The lowest density with highest nitrogen gave the shortest phyllochron.
Intervention effect Higher density extended the vegetative growth period.
Intervention effect Higher nitrogen extended the vegetative growth period.
Intervention effect Increasing density reduced time to pollen appearance.
Intervention effect At the highest density and nitrogen rate, time to pollen appearance exceeded other treatments.
Intervention effect Increasing density shortened flowering conformity period.
Intervention effect Nitrogen had no significant effect on flowering conformity period.
Intervention effect The longest flowering conformity period occurred at 7 plant m and 75 kg ha nitrogen.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Density above 60,000 plants per hectare decreased grain starch content.

Taxon: maizeZea mayst0
Treatment: increasing plant density above 60,000 plants /hae0
Outcome: starch contente0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“increasing plant density above 60,000 plants /ha led to decrease in starch content”
✓ located verbatim in the source · abstract, characters 627–709

t0
“Grain Quality of Maize”
✓ located verbatim in the source · title, characters 0–22

Title

Grain Quality of Maize Cultivar Giza 168 as Affected by Levels of Irrigation, Sowing Date, Plant Density and Macronutrients

Ola E. Zakaria; Mohamed M. El-Rouby; Mona M. Hemeid Alexandria Science Exchange Journal 2020. doi:10.21608/asejaiqjsae.2020.127606

Other claims from this paper (6)

Intervention effect Early May sowing increased grain starch and oil contents.
Association Greater density increased oil yield through increased grain yield.
Intervention effect Nitrogen fertilization increased grain oil and starch contents up to 258 kg N/ha.
Intervention effect Potassium fertilization increased grain oil and starch contents up to 136 kg K2O/ha.
Association Increasing studied factors other than phosphorus increased total sugars.
Association Phosphorus above 50 kg P2O5 per hectare had a negative relationship with total sugars.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Total ear florets, silking florets, and silking rates decreased slightly as density increased.

Taxon: maizeZea mayst0
Treatment: plant density increasinge0
Outcome: Total florets, silking florets, and silking rates of eare0
Direction: decreasee0

Verbatim

e0
“Total florets, silking florets, and silking rates of ear showed slightly decrease trends with the plant density increasing”
✓ located verbatim in the source · abstract, characters 973–1095

t0
“maize”
✓ located verbatim in the source · title, characters 26–31

Title

How plant density affects maize spike differentiation, kernel set, and grain yield formation in Northeast China?

Ming ZHANG; Tao CHEN; Hojatollah Latifmanesh; et al. Journal of Integrative Agriculture 2018. doi:10.1016/s2095-3119(17)61877-x

Other claims from this paper (12)

Intervention effect Plant density had no significant effect on initial tassel and ear differentiation time.
Intervention effect Higher density delayed tassel and ear development during floret differentiation and sexual organ formation.
Intervention effect ZD909 had a longer anthesis-silking interval at higher density than at D1.
Intervention effect JD209 had a longer anthesis-silking interval at higher density than at D1.
Intervention effect ND4 had a longer anthesis-silking interval at higher density than at D1.
Intervention effect ZD909 had fewer normal kernels at increased density than at D1.
Intervention effect JD209 had fewer normal kernels at increased density than at D1.
Intervention effect ND4 had fewer normal kernels at increased density than at D1.
Association ZD909 100-kernel weight declined less than JD209 and ND4 as density increased.
Observation ZD909 reached its highest grain yield at the stated planting density.
Observation JD209 reached its highest grain yield at the stated planting density.
Observation ND4 reached its highest grain yield at the stated planting density.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Increasing sowing density reduced maize cob length and diameter linearly.

Taxon: maizeZea mayse0
Treatment: sowing density from 6 to 10 plants m −2e0
Outcome: cob length and diametere0
Direction: decreasee0

Verbatim

e0
“Increasing maize sowing density from 6 to 10 plants m −2 resulted in a linear decrease in cob length and diameter”
✓ located verbatim in the source · abstract, characters 593–706

Title

Influence of different sowing density in two varieties of maize. Part II. Relation to agricultural morphological features

Piotr Szulc; Katarzyna Ambroży-Deręgowska Biometrical Letters 2021. doi:10.2478/bile-2021-0016

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Hundred-grain weight decreased as density increased.

Taxon: MAIZEZea mayst0
Treatment: plant densitye0
Outcome: 100-grain weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“ear length, ear diameter, number of rows/ear, number of kernels/row and 100-grain weight decrease as plant density increased.”
✓ located verbatim in the source · abstract, characters 1261–1386

t0
“MAIZE HYBRIDS”
✓ located verbatim in the source · title, characters 138–151

Title

PERFORMANCE AND PHENOTYPIC-GENOTYPIC STABILITY ESTIMATES OF GRAIN YIELD AND ITS A TIRIBUTES IN DIFFERENT ENVIRONMENTAL CO DITIONS OF SOME MAIZE HYBRIDS

Y. Katta,; M. Abd EI-Aty Journal of Plant Production 2002. doi:10.21608/jpp.2002.254797

Other claims from this paper (19)

Intervention effect Days to silking rose with planting density.
Intervention effect Plant and ear heights rose with planting density.
Intervention effect Ears per plant did not change significantly with density.
Intervention effect Ear length and diameter decreased as density increased.
Intervention effect Rows per ear and kernels per row decreased as density increased.
Intervention effect Grain yield was highest at the reported density of 25,000 thousand plant/fed.
Intervention effect Raising nitrogen from 80 to 160 kg N/fed. delayed silking.
Intervention effect Raising nitrogen increased plant and ear heights.
Intervention effect Raising nitrogen increased ear length and diameter.
Intervention effect Raising nitrogen increased rows per ear and kernels per row.
Intervention effect Raising nitrogen increased 100-grain weight.
Intervention effect Average grain yield was highest at 120 kg nitrogen per feddan.
Observation S.C. 10 had the highest hybrid grain yield at 34.94 ard.lfed.
Observation S.C. 124 yielded 33.69 ard.lfed.
Observation S.C. 122 yielded 31.61 ard.lfed.
Observation S.C. 123 was among the lowest yielders at 28.45 ard.lfed.
Observation T.W.C. 320 was among the lowest yielders at 27.94 ard.lfed.
Observation S.C.123, S.C.124 and TW.C. 321 reached silking earliest.
Observation Stability analyses gave conflicting results: regression characterized S.C. 122 and S.C. 124 as most stable, while Tai analysis found all varieties unstable, with S.C. 124 closest to average and T.W.C. 320 worst.

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Greater Xanthium density significantly reduced maize yield.

Taxon: maizeZea mayse0
Interactor: X. strumariumXanthium strumariume0weed
Outcome: maize yielde0
Direction: decreasee0

Verbatim

e0
“an increase in X. strumarium density causes a highly significant decrease in maize height, fresh weight, dry weight and leaf area at the 4-5 leaf growth stage, as well as maize yield”
✓ located verbatim in the source · abstract, characters 768–950

Title

Competition between maize and Xanthium strumarium L.

R. Nakova; Ganka Baeva; P. Nikolov Pesticidi I Fitomedicina 2004

Other claims from this paper (5)

Observation Xanthium strumarium was highly competitive with maize.
Association Greater Xanthium density significantly reduced maize height, fresh weight and dry weight.
Association Greater Xanthium density significantly reduced maize leaf area.
Observation The largest maize trait decrease occurred at 25 Xanthium plants per metre.
Method / resource The authors suggest regression models could predict maize yield damage from competition.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Under full irrigation, B1 significantly decreased root length density in year 2.

Taxon: MaizeZea mayst0
Treatment: B1e0
Outcome: root length densitye0
Direction: decreasee0
Qualifier: year 2e0

Not reportedComparator

Verbatim

e0
“under full irrigation was less clear, with significant decrease in root length density for B1 and B2 in year 2”
✓ located verbatim in the source · abstract, characters 1697–1807

t0
“Maize”
✓ located verbatim in the source · title, characters 98–103

Title

New Rootsnap Sensor Reveals the Ameliorating Effect of Biochar on In Situ Root Growth Dynamics of Maize in Sandy Soil

Fauziatu Ahmed; Emmanuel Arthur; Hui Liu; et al. Frontiers in Plant Science 2020. doi:10.3389/fpls.2020.00949

Other claims from this paper (6)

Intervention effect At 50 cm, first roots arrived 9 days earlier with B3 than B0, averaging 47 days after planting.
Mechanism Biochar may reduce subsoil mechanical impedance and speed root access to deep layers.
Method / resource Rootsnap and scanning root length density estimates had a regression r2 of 0.50.
Intervention effect Under drought, maize root diameter was reduced at 50-70 cm in the first year.
Intervention effect Under drought, maize root length density increased at 50-70 cm in the second year.
Intervention effect Under full irrigation, B2 significantly decreased root length density in year 2.

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“decrease in density”

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