Search claims · PlantClaims

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The decline in top growth rate was attributed to fewer leaves reducing blade dry weight.

Taxon: OnionAllium cepat0
Outcome: decrease in the dry weight of the leaf bladese0
Qualifier: decrease in leaf numbere0

Verbatim

e0
“which was due to a decrease in the dry weight of the leaf blades caused by decrease in leaf number.”
✓ located verbatim in the source · abstract, characters 739–838

t0
“Onion”
✓ located verbatim in the source · title, characters 61–66

Title

The Pattern of Dry‐Matter Distribution during Development in Onion

D. N. Iortsuun; A. A. Khan Journal of Agronomy and Crop Science 1989. doi:10.1111/j.1439-037x.1989.tb00698.x

Other claims from this paper (10)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cyanamide decreased the accumulation of fresh and dry weight of onion roots.

Taxon: onionAllium cepae2
Treatment: cyanamidee2
Outcome: accumulation of fresh and dry weighte3
Direction: decreasee3

Not reportedComparator

Verbatim

e2
“Treatment of onion roots with cyanamide resulted in a decrease in root growth rate”
✓ located verbatim in the source · abstract, characters 269–351

e3
“accompanied by a decrease in accumulation of fresh and dry weight”
✓ located verbatim in the source · abstract, characters 352–417

Title

Cyanamide mode of action during inhibition of onion (Allium cepa L.) root growth involves disturbances in cell division and cytoskeleton formation

Dorota Soltys; Anna Rudzińska-Langwald; Wojciech Kurek; et al. Planta 2011. doi:10.1007/s00425-011-1429-5

Other claims from this paper (8)

Intervention effect Cyanamide restricted onion root growth in a dose-dependent manner.
Intervention effect Cyanamide decreased the root growth rate of onion.
Intervention effect Removal of cyanamide from the environment reversed its inhibitory effect on onion roots.
Observation Full recovery of onion roots was observed only after treatment with cyanamide at low concentration (2-6 mM).
Mechanism Disturbances in cell division may explain the allelopathic activity of cyanamide on onion.
Intervention effect Cyanamide reduced the number of mitotic cells in onion roots.
Intervention effect Cyanamide inhibited proliferation of meristematic cells and the cell cycle in onion roots.
Intervention effect Cyanamide modified the cytoskeleton arrangement in onion roots.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing irrigation salinity decreased onion dry weight, bulb weight and total yield.

Taxon: OnionAllium cepat0
Treatment: increasing levels of salinity of irrigation watere0
Outcome: dry weight, bulb weight, total yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“increasing levels of salinity of irrigation water caused a significant decrease in soil reaction degree, soil organic matter content, dry weight, bulb weight, total yield, and NPK absorbed by the plant”
✓ located verbatim in the source · abstract, characters 1169–1370

t0
“Onion”
✓ located verbatim in the source · title, characters 113–118

Title

Role of Conocarpus Lancifolius Residues on Some Soil Chemical Properties, NPK Concentration, Growth and Yield of Onion Under Different Water Salinity Levels

Hussam Y. Khodier; Kamal H. Al-Dulaimi; Bassam R. Sarheed IOP Conference Series Earth and Environmental Science 2025. doi:10.1088/1755-1315/1487/1/012074

Other claims from this paper (7)

Intervention effect Increasing Conocarpus residues increased soil organic matter.
Intervention effect Increasing Conocarpus residues increased onion dry weight, bulb weight and total yield.
Intervention effect Increasing Conocarpus residues increased plant NPK uptake.
Intervention effect Increasing Conocarpus residues decreased soil electrical conductivity and pH.
Intervention effect Increasing irrigation salinity decreased soil pH and organic matter.
Intervention effect Increasing irrigation salinity decreased onion NPK uptake.
Intervention effect Measured characteristics were lower at 30-15 cm than 0-15 cm.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

SB20/13 reduced onion bulb dry weight in experiment two.

Taxon: onionAllium cepat0
Treatment: SB20/13e0
Outcome: dry weighte0
Direction: decreasee0
Value: 1.3-1.7%e0
Comparator: controle0

Verbatim

e0
“Covering with nonwovens caused a decrease in dry weight (SB20/13 and SB21/13, by 1.3-1.7%, respectively) and L-ascorbic acid (all nonwovens, by 15.6% for SB21/13 up to 22% for SB20/13) in onion bulbs in comparison to the control.”
✓ located verbatim in the source · abstract, characters 1409–1638

t0
“overwintering onion”
✓ located verbatim in the source · title, characters 77–96

Title

Effect of biodegradable nonwoven covers on yield and chemical composition of overwintering onion

Andrzej Kalisz; Agnieszka Sękara; Andrzej Jurkow; et al. Italus Hortus 2020. doi:10.26353/j.itahort/2020.1.4154

Other claims from this paper (12)

Intervention effect SB21/13 increased marketable onion yield by 24% in experiment one.
Intervention effect SB21/13 increased onion harvest index by 3% in experiment one.
Intervention effect SB20/13 decreased mean onion bulb weight by 15.3% relative to control.
Intervention effect SB21/13 produced onion bulbs with 3.2-3.7% lower dry weight.
Intervention effect SB28/13 produced the lowest bulb L-ascorbic acid content, 6.3-10.3% below other treatments.
Intervention effect SB20/13 onion bulbs contained 10.6% more sugar than controls.
Intervention effect SB28/13 raised first-grade onion yield by 47% in experiment two.
Intervention effect SB21/13 had the highest mean bulb weight in experiment two.
Intervention effect SB21/13 reduced onion bulb dry weight in experiment two.
Intervention effect SB21/13 reduced bulb L-ascorbic acid by 15.6%.
Intervention effect SB20/13 reduced bulb L-ascorbic acid by 22%.
Recommendation The authors consider biodegradable nonwoven covers suitable for open-field winter onion cultivation because yield was not reduced relative to polypropylene.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

SB21/13 reduced onion bulb dry weight in experiment two.

Taxon: onionAllium cepat0
Treatment: SB21/13e0
Outcome: dry weighte0
Direction: decreasee0
Value: 1.3-1.7%e0
Comparator: controle0

Verbatim

e0
“Covering with nonwovens caused a decrease in dry weight (SB20/13 and SB21/13, by 1.3-1.7%, respectively) and L-ascorbic acid (all nonwovens, by 15.6% for SB21/13 up to 22% for SB20/13) in onion bulbs in comparison to the control.”
✓ located verbatim in the source · abstract, characters 1409–1638

t0
“overwintering onion”
✓ located verbatim in the source · title, characters 77–96

Title

Effect of biodegradable nonwoven covers on yield and chemical composition of overwintering onion

Andrzej Kalisz; Agnieszka Sękara; Andrzej Jurkow; et al. Italus Hortus 2020. doi:10.26353/j.itahort/2020.1.4154

Other claims from this paper (12)

Intervention effect SB21/13 increased marketable onion yield by 24% in experiment one.
Intervention effect SB21/13 increased onion harvest index by 3% in experiment one.
Intervention effect SB20/13 decreased mean onion bulb weight by 15.3% relative to control.
Intervention effect SB21/13 produced onion bulbs with 3.2-3.7% lower dry weight.
Intervention effect SB28/13 produced the lowest bulb L-ascorbic acid content, 6.3-10.3% below other treatments.
Intervention effect SB20/13 onion bulbs contained 10.6% more sugar than controls.
Intervention effect SB28/13 raised first-grade onion yield by 47% in experiment two.
Intervention effect SB21/13 had the highest mean bulb weight in experiment two.
Intervention effect SB20/13 reduced onion bulb dry weight in experiment two.
Intervention effect SB21/13 reduced bulb L-ascorbic acid by 15.6%.
Intervention effect SB20/13 reduced bulb L-ascorbic acid by 22%.
Recommendation The authors consider biodegradable nonwoven covers suitable for open-field winter onion cultivation because yield was not reduced relative to polypropylene.

Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Epicuticular wax per dry weight decreased significantly between late one-leaf and late two-leaf stages in both field and growth room.

Taxon: onionAllium cepae1
Organ / stage: late two-leaf stagese0
Outcome: epicuticular wax per unit dry weighte0
Direction: decreasee0
Comparator: late one-leafe0
Setting: field and growth room conditionse0

Verbatim

e0
“A significant decrease in epicuticular wax per unit dry weight between the late one-leaf and late two-leaf stages occurred under both field and growth room conditions”
✓ located verbatim in the source · abstract, characters 811–977

e1
“tolerance of onion seedlings to the herbicide”
✓ located verbatim in the source · abstract, characters 401–446

e2
“between the late one-leaf and late two-leaf stages”
✓ located verbatim in the source · abstract, characters 874–924

Title

RESPONSE OF ONION (Allium cepa) TO OXYFLUORFEN DURING EARLY SEEDLING DEVELOPMENT

W. C. AKEY; V. SOUZA MACHADO Canadian Journal of Plant Science 1985. doi:10.4141/cjps85-050

Other claims from this paper (6)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Epicuticular wax per unit dry weight increased as onion seedlings aged in general.

Taxon: onionAllium cepae1
Organ / stage: plant agee0
Outcome: epicuticular wax per unit dry weighte0
Direction: increasee0

Verbatim

e0
“there was a progressive decrease in spray retention and a corresponding increase in epicuticular wax per unit dry weight as plant age increased”
✓ located verbatim in the source · abstract, characters 460–603

e1
“tolerance of onion seedlings to the herbicide”
✓ located verbatim in the source · abstract, characters 401–446

e2
“between the late one-leaf and late two-leaf stages”
✓ located verbatim in the source · abstract, characters 874–924

Title

RESPONSE OF ONION (Allium cepa) TO OXYFLUORFEN DURING EARLY SEEDLING DEVELOPMENT

W. C. AKEY; V. SOUZA MACHADO Canadian Journal of Plant Science 1985. doi:10.4141/cjps85-050

Other claims from this paper (6)

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing Conocarpus residues increased onion dry weight, bulb weight and total yield.

Taxon: OnionAllium cepat0
Treatment: increasing levels of Conocarpus residues additione0
Outcome: dry weight, bulb weight, total yielde0
Direction: increasee0

Not reportedComparator

Verbatim

e0
“a significant increase in soil organic matter content, dry weight, bulb weight, total yield, and NPK absorbed by the plant as well as a significant decrease in electrical conductivity value and soil reaction degree (pH) coincides with increasing levels of Conocarpus residues addition”
✓ located verbatim in the source · abstract, characters 877–1161

t0
“Onion”
✓ located verbatim in the source · title, characters 113–118

Title

Role of Conocarpus Lancifolius Residues on Some Soil Chemical Properties, NPK Concentration, Growth and Yield of Onion Under Different Water Salinity Levels

Hussam Y. Khodier; Kamal H. Al-Dulaimi; Bassam R. Sarheed IOP Conference Series Earth and Environmental Science 2025. doi:10.1088/1755-1315/1487/1/012074

Other claims from this paper (7)

Intervention effect Increasing Conocarpus residues increased soil organic matter.
Intervention effect Increasing Conocarpus residues increased plant NPK uptake.
Intervention effect Increasing Conocarpus residues decreased soil electrical conductivity and pH.
Intervention effect Increasing irrigation salinity decreased soil pH and organic matter.
Intervention effect Increasing irrigation salinity decreased onion dry weight, bulb weight and total yield.
Intervention effect Increasing irrigation salinity decreased onion NPK uptake.
Intervention effect Measured characteristics were lower at 30-15 cm than 0-15 cm.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Reducing irrigation from 100% to 50% of the water supply decreased onion dry mass, leaf iron content and average bulb weight.

Taxon: onionAllium cepae2
Treatment: reducing irrigation levels from 100 to 50% of the water supplye1
Outcome: dry mass, iron content in the leaves, the average weight of bulbse1
Direction: decreasee1
Comparator: 100e1
Setting: Fallujah, Iraqe0

Verbatim

e0
“A field experiment was conducted in Fallujah, Iraq during the autumn season in 2019”
✓ located verbatim in the source · abstract, characters 89–172

e1
“The results show a significant decrease in plant height, number of bulbs, total chlorophyll content, dry mass, iron content in the leaves, the average weight of bulbs and total yield of bulbs by reducing irrigation levels from 100 to 50% of the water supply”
✓ located verbatim in the source · abstract, characters 571–828

e2
“yield of onion (Allium cepa L.)”
✓ located verbatim in the source · abstract, characters 277–308

Title

Response of onion growth and yield grown in soils of semi-arid regions to foliar application of iron under water stress conditions

Gar, Laith Farhan; Bader, Basem Rahem; Al-Esawi, Jabbar Shihab Eyada; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2021. doi:10.15159/jas.21.06

Other claims from this paper (6)

Intervention effect Reducing irrigation from 100% to 50% of the water supply decreased onion plant height, bulb number and total chlorophyll content.
Intervention effect Reducing irrigation from 100% to 50% of the water supply decreased total onion bulb yield.
Intervention effect Foliar spraying with iron significantly increased most of the measured onion traits.
Intervention effect The combination of 100% water supply and 100 mg L–1 iron gave the highest onion total yield, 4 332 Mg ha–1.
Intervention effect The combination of 75% of water supply and 100 mg L–1 iron gave the highest onion water use efficiency, 84.7%.
Intervention effect Iron and irrigation level interacted significantly for most measured onion traits.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined glyphosate, pendimethalin and oxyfluorfen produced weed dry weight of 12.7 g.

Taxon: OnionAllium cepat0
Treatment: combined application of glyphosate, pendimethalin and oxyfluorfene0
Interactor: weedse0weed
Outcome: total dry weight of weedse0
Direction: decreaseinferrede0
Value: 12.7ge0
Comparator: weedy checke0

Verbatim

e0
“the hand weeded treatment had the lowest total dry weight of weeds (10.3g) and total fresh weight of weeds (29.4g) followed by combined application of glyphosate, pendimethalin and oxyfluorfen treated plot (12.7g) and (24.5g) as compared to the weedy check (45.8g) and (159.0g) respectively.”
✓ located verbatim in the source · abstract, characters 1110–1401

t0
“Onion”
✓ located verbatim in the source · title, characters 55–60

Title

Performance of Different Herbicides on Weed Control in Onion (Allium cepa L.) and Its Effect on Economics

Sangeeta Kumari; Rajesh Kumar; S. N. Das; et al. Current Journal of Applied Science and Technology 2019. doi:10.9734/cjast/2019/v33i230058

Other claims from this paper (8)

Intervention effect Hand weeding gave the lowest weed dry weight, 10.3 g, compared with 45.8 g in the weedy check.
Intervention effect Hand weeding gave the lowest weed fresh weight, 29.4 g, compared with 159.0 g in the weedy check.
Intervention effect Combined glyphosate, pendimethalin and oxyfluorfen produced weed fresh weight of 24.5 g.
Intervention effect Hand weeding gave the maximum onion bulb size, 62.5 g.
Intervention effect Hand weeding gave the maximum onion yield, 281 q/ha.
Intervention effect The combined herbicides produced onion bulb size of 61.9 g.
Intervention effect The combined herbicides produced onion yield of 268 q/ha.
Intervention effect The three-herbicide combination had the highest cost benefit ratio because of low labour use.

“dry weight decrease”

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