Search claims · PlantClaims

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Halving insect visits caused little decrease in sunflower yield.

Taxon: sunflowerHelianthus annuuse1
Treatment: insect visits were reduced by 50%e0
Outcome: yielde0
Direction: little decreasee0
Value: 50%e0

Not reportedComparator

Verbatim

e0
“little decrease in yield when insect visits were reduced by 50%”
✓ located verbatim in the source · abstract, characters 630–693

e1
“in sunflower”
✓ located verbatim in the source · abstract, characters 208–220

Title

Supplementary material from "Pollination benefits are maximized at intermediate nutrient levels"

Tamburini, Giovanni; Lami, Francesco; Marini, Lorenzo Figshare 2017. doi:10.6084/m9.figshare.c.3827959.v2

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Halving insect visits caused little sunflower yield decrease.

Taxon: sunflowerHelianthus annuust0
Treatment: insect visits were reduced by 50%e0
Outcome: yielde0
Direction: little decreasee0

Not reportedComparator

Verbatim

e0
“little decrease in yield when insect visits were reduced by 50%”
✓ located verbatim in the source · abstract, characters 632–695

t0
“in sunflower, combining a gradient in insect pollination”
✓ located verbatim in the source · abstract, characters 208–264

Title

Pollination benefits are maximized at intermediate nutrient levels

Giovanni Tamburini; Francesco Lami; Lorenzo Marini Proceedings of the Royal Society B Biological Sciences 2017. doi:10.1098/rspb.2017.0729

Other claims from this paper (4)

Association Pollination benefits to sunflower yield peaked at intermediate N supply.
Intervention effect Pollination increased sunflower yield about 25% versus complete pollinator exclusion.
Association The authors found a nonlinear pollination by nutrient interaction in seed production.
Recommendation Optimal pollination could compensate for lower nitrogen applications.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The 25-30 mm lower water reserve under antierosive tillage did not decrease the yield of sunflower hybrid Zaporozhskiy 9.

Taxon: sunflowerHelianthus annuuse2
Material: Zaporozhskiy 9e2
Treatment: antierosive tillagee1
Outcome: yielde2
Direction: did not decreasee2
Qualifier: 25-30 mme2
Comparator: conventional plowinge1

Verbatim

e1
“after antierosive tillage, the black steppe soil accumulates less water reserve than after conventional plowing”
✓ located verbatim in the source · abstract, characters 314–425

e2
“the difference which amounted to 25-30 mm, did not decrease the yield of the sunflower hybrid Zaporozhskiy 9”
✓ located verbatim in the source · abstract, characters 436–544

Title

Yield of sunflower on black steppe soil of Ukraine

Igor Aksyonov Helia 2003. doi:10.2298/hel0339161a

Other claims from this paper (2)

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

The decrease in chloroplast quantum yield could not be attributed to differences in respiration rates, chlorophyll content or absorption spectrum.

Taxon: sunflowerHelianthus annuuse0
Outcome: The decreasee5
Qualifier: could not be attributed to differences in rates of respiration by the leaves or the chlorophyll content or absorption spectrume5

Verbatim

e0
“Quantum yields were measured for CO(2) fixation by sunflower (Helianthus annuus L.) leaves having various water potentials”
✓ located verbatim in the source · abstract, characters 0–122

e5
“The decrease could not be attributed to differences in rates of respiration by the leaves or the chlorophyll content or absorption spectrum of the leaves and chloroplasts”
✓ located verbatim in the source · abstract, characters 810–980

Title

Chloroplast Response to Low Leaf Water Potentials

Prasanna Mohanty; John S. Boyer PLANT PHYSIOLOGY 1976. doi:10.1104/pp.57.5.704

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Mixed cover crops did not significantly increase yield.

Taxon: sunflowerHelianthus annuuse1
Treatment: Mixtures of Brassicaceae and Fabaceaee0
Outcome: yieldse0
Direction: did not significantly decrease SVW or increasee0
Comparator: bare soile0

Verbatim

e0
“Mixtures of Brassicaceae and Fabaceae sowed at these densities resulted in an intermediate SMN level between those in sole crops and the bare soil and they did not significantly decrease SVW or increase yields.”
✓ located verbatim in the source · abstract, characters 1775–1985

e1
“sunflower yields after cover crops”
✓ located verbatim in the source · abstract, characters 1614–1648

Title

Ecosystem Services Provided by Cover Crops and Biofumigation in Sunflower Cultivation

Neila Ait Kaci Ahmed; Benoit Galaup; Jérémy Desplanques; et al. Agronomy 2022. doi:10.3390/agronomy12010120

Other claims from this paper (6)

Intervention effect Purple vetch increased soil mineral nitrogen before sunflower sowing in 2019.
Intervention effect Fodder radish reduced sunflower wilt severity overall at 80 days except in 2019.
Intervention effect Purple vetch reduced sunflower wilt severity in 2017 and 2020.
Intervention effect Sunflower yield after purple vetch was higher than after bare soil in 2020 by 0.77 t ha−1.
Intervention effect Mixed cover crops produced intermediate soil mineral nitrogen.
Intervention effect Mixed cover crops did not significantly reduce sunflower wilt.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Boron fertilization did not increase sunflower yield.

Taxon: SunflowerHelianthus annuust0
Treatment: boron fertilizinge0
Outcome: yielde0
Direction: did not provide an increasee0

Not reportedComparator

Verbatim

e0
“The results obtained indicate that boron fertilizing did not provide an increase in yield, and in some cases led to its decrease.”
✓ located verbatim in the source · abstract, characters 469–598

t0
“Sunflower”
✓ located verbatim in the source · title, characters 58–67

Title

Influence of Foliar Application of Water-Soluble Boron on Sunflower Productivity

Oleksandr Dobrenkyi Journal of Water Research 2025. doi:10.33140/jwr.03.03.04

Other claims from this paper (2)

Intervention effect Boron fertilization decreased sunflower yield in some cases.
Intervention effect Boron applied at R1-R2 at 1.5 l/ha produced the smallest yield decrease, nearly the Check level.

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Seed yield did not increase significantly after the third foliar feeding.

Taxon: sunflowerHelianthus annuuse1
Treatment: third foliar feedinge2
Outcome: yielde2
Direction: did not increasee2

Verbatim

e1
“crops high oil sunflower hybrid Aurora AM”
✓ located verbatim in the source · abstract, characters 405–446

e2
“This trend is associated with a decrease in the oil content in the seeds after the third foliar feeding, while the yield did not increase significantly”
✓ located verbatim in the source · abstract, characters 2429–2580

Title

THE YIELD AND QUALITY OF SUNFLOWER SEEDS DEPEND ON THE PRE-SOWING TREATMENT OF THE SEEDS AND EXTRA-ROOT NUTRIENTS

Artur Rozhkov; Oleksandr Kalinov The Scientific and Technical Bulletin of the Institute of Animal Science NAAS of Ukraine 2024. doi:10.32900/2312-8402-2024-131-187-201

Other claims from this paper (18)

Intervention effect Pre-sowing seed treatment had a significant positive effect on sunflower yield.
Intervention effect The mixture pre-sowing treatment gave the highest sunflower seed yield, 2.66 tons/hectare.
Intervention effect The mixture pre-sowing treatment raised sunflower seed yield by 0.3 tons/hectare (12.7 %) over the control version.
Observation Sunflower seed yield of the mixture pre-sowing variant was 2.37 and 2.94 tons/hectare in 2022 and 2023.
Intervention effect In 2022 and 2023 the mixture pre-sowing variant yielded 0.27 and 0.32 tons/hectare more than the NIR05 control.
Intervention effect Optimized pre-sowing seed treatment and foliar fertilization increased two-year average sunflower seed yield by 0.45 tons/hectare or almost 20.0%.
Recommendation The authors recommend more attention to pre-sowing seed treatment and foliar feeding for sunflower.
Intervention effect The largest oil collection, 1,417 tons/hectare on a two-year average, came from the pre-sowing mixture with two foliar fertilizings.
Intervention effect Compared with the control, oil collection from 1 hectare increased by 0.271 tons/hectare or almost 24.0% with the two-foliar-fertilizing variant.
Intervention effect Three foliar top dressings gave lower sunflower oil collection than two top dressings.
Association Oil content in sunflower seeds decreased after the third foliar feeding.
Intervention effect The all-drug pre-sowing mixture gave the highest sunflower seed yield.
Intervention effect The all-drug pre-sowing mixture gave the highest oil content in sunflower seeds.
Intervention effect The all-drug pre-sowing variant increased oil yield from 1 hectare by 16.2% over the control.
Intervention effect The all-drug pre-sowing variant increased sunflower seed yield by 12.7% on average over the years and foliar fertilization.
Association Weather conditions changed sunflower seed yield by a range of 24.0% across the two years.
Association Weather conditions changed oil yield from 1 hectare by 19, 7% across the two years.
Mechanism The smaller weather effect on oil collection is associated with the lower oil content of the seeds in 2023.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 81 DAP, capitulum dry mass did not differ between control and TE-treated plants.

Taxon: sunflowerHelianthus annuust0
Treatment: TE-treated plantse0
Outcome: dry mass of capitulume0
Direction: did not differe0
Comparator: controle0

Verbatim

t0
“sunflower”
✓ located verbatim in the source · title, characters 81–90

e0
“At 81 DAP, dry mass of capitulum did not differ among control and TE-treated plants”
✓ located verbatim in the source · abstract, characters 735–818

Title

Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower?

Marcia Eugenia Amaral Carvalho; Paulo Roberto de Camargo e Castro; Marcos Vinicius de Castro Ferraz Junior; et al. Comunicata Scientiae 2016. doi:10.14295/cs.v7i1.1286

Other claims from this paper (7)

Intervention effect Trinexapac-ethyl (TE) decreased sunflower plant height by 16.9%.
Intervention effect Maleic hydrazide (MH) decreased sunflower plant height by 35.9%.
Intervention effect Only TE positively influenced capitulum diameter, by 46.7% compared with control at 60 days after planting.
Intervention effect Only TE positively influenced capitulum dry mass, by 311% compared with control at 60 days after planting.
Intervention effect MH impaired capitulum diameter by 92.9%.
Intervention effect MH impaired capitulum dry mass by 74.7%.
Recommendation The authors conclude that TE application is a potential strategy to decrease lodging probability without affecting sunflower yield.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Phenological timing was similar across treatments.

Taxon: SunflowerHelianthus annuust0
Treatment: treatmente0
Outcome: time to phenological stagese0
Direction: similare0

Not reportedComparator

Verbatim

t0
“Sunflower”
✓ located verbatim in the source · title, characters 36–45

e0
“The time to phenological stages was similar between treatment. The N and in minor degree the P increased grain yield (GY) and oil yield (OY) by increases in the grains number (GN), capitulum area (CA), canopy dry matter (CDM) and radical area (RA). In contrast, the P increase RDM but decrease the CDM/RDM relation. The effect of the interaction N * P on GY, OY indicates it is necessary to seek the best combination of …” Show full quote
✓ located verbatim in the source · abstract, characters 580–1215

Title

Root System, Phenology and Yield of Sunflower in Relation to Nitrogen and Phosphorus

José Alberto Salvador Escalante Estrada; María Teresa Rodríguez González; Yolanda Isabel Escalante Estrada Helia 2015. doi:10.1515/helia-2014-0025

Other claims from this paper (15)

Intervention effect N increased sunflower grain yield (GY).
Intervention effect N increased sunflower oil yield (OY).
Intervention effect P increased sunflower grain yield (GY).
Intervention effect P increased sunflower oil yield (OY).
Intervention effect N increases sunflower grains number (GN).
Intervention effect N increases sunflower capitulum area (CA).
Intervention effect N increases sunflower canopy dry matter (CDM).
Intervention effect N increases sunflower radical area (RA).
Intervention effect P increase sunflower RDM.
Intervention effect P decrease sunflower CDM/RDM relation.
Intervention effect Grain size did not change with N and P.
Intervention effect Grain oil content did not change with N and P.
Observation The sunflower growth cycle lasted 122 days.
Observation Seasonal sunflower ETc was 207 mm.
Observation Seasonal heat units were 1,369°C d.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Grain size did not change with N and P.

Taxon: SunflowerHelianthus annuust0
Treatment: N and Pe0
Outcome: size graine0
Direction: did not changee0

Not reportedComparator

Verbatim

t0
“Sunflower”
✓ located verbatim in the source · title, characters 36–45

e0
“The time to phenological stages was similar between treatment. The N and in minor degree the P increased grain yield (GY) and oil yield (OY) by increases in the grains number (GN), capitulum area (CA), canopy dry matter (CDM) and radical area (RA). In contrast, the P increase RDM but decrease the CDM/RDM relation. The effect of the interaction N * P on GY, OY indicates it is necessary to seek the best combination of …” Show full quote
✓ located verbatim in the source · abstract, characters 580–1215

Title

Root System, Phenology and Yield of Sunflower in Relation to Nitrogen and Phosphorus

José Alberto Salvador Escalante Estrada; María Teresa Rodríguez González; Yolanda Isabel Escalante Estrada Helia 2015. doi:10.1515/helia-2014-0025

Other claims from this paper (15)

Intervention effect N increased sunflower grain yield (GY).
Intervention effect N increased sunflower oil yield (OY).
Intervention effect P increased sunflower grain yield (GY).
Intervention effect P increased sunflower oil yield (OY).
Intervention effect N increases sunflower grains number (GN).
Intervention effect N increases sunflower capitulum area (CA).
Intervention effect N increases sunflower canopy dry matter (CDM).
Intervention effect N increases sunflower radical area (RA).
Intervention effect P increase sunflower RDM.
Intervention effect P decrease sunflower CDM/RDM relation.
Intervention effect Phenological timing was similar across treatments.
Intervention effect Grain oil content did not change with N and P.
Observation The sunflower growth cycle lasted 122 days.
Observation Seasonal sunflower ETc was 207 mm.
Observation Seasonal heat units were 1,369°C d.

“yield decrease”

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