Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativenot significant (as stated)measured

Claim · model-written summary

Traffic on extremely compacted soil caused an additional yield decrease that was not significant in the first year.

Taxon: alfalfaMedicago sativae0
Treatment: harvest traffice0
Outcome: yielde0
Direction: decreasee0
Qualifier: extremely compacted soile0

Not reportedComparator

Verbatim

e0
“When harvest traffic was applied to alfalfa grown in extremely compacted soil there was an additional decrease in yield. It was not statistically significant the 1st yr”
✓ located verbatim in the source · abstract, characters 1290–1458

Title

Alfalfa Yield as Affected by Harvest Traffic and Soil Compaction in a Sandy Loam Soil

E. A. Rechel; B. D. Meek; W. R. DeTar; et al. jpa 1991. doi:10.2134/jpa1991.0241

Other claims from this paper (13)

Intervention effect A single post-swathing traffic event reduced first-year yield by 20% relative to no traffic.
Intervention effect The single traffic event reduced second-year yield by 16.5%.
Intervention effect The single traffic event reduced third-year yield by 14%.
Intervention effect Single-event traffic did not significantly differ from no traffic in fourth-year yield.
Intervention effect Typical grower traffic did not differ in first-year total yield from no traffic.
Intervention effect Typical grower traffic reduced total yield by 5 to 17% in the succeeding three years.
Intervention effect Moderate soil compaction reduced first-year seasonal yield by 12% relative to uncompacted soil.
Intervention effect Heavy soil compaction reduced first-year seasonal yield by 26% relative to uncompacted soil.
Intervention effect Third-year annual yield was the same across soil compaction degrees.
Intervention effect Traffic on extremely compacted soil reduced yield by 17.8% in 1987.
Intervention effect Traffic on extremely compacted soil reduced yield by 19.1% in 1988.
Recommendation The authors recommend tilling compacted soil before planting for optimal long-term alfalfa yield.
Recommendation The authors recommend operations that reduce traffic-exposed field area.

Mechanismobservedoriginal resultnegativemeasured

Claim · model-written summary

Lower seed yield in later fruit was mainly due to lower mean seed weight.

Organ / stage: later fruitse0
Outcome: seed yielde0
Direction: decreasee0
Qualifier: decrease in mean seed weighte0

Not reportedTaxon

Verbatim

e0
“the decrease in seed yield in later fruits was due mainly to a decrease in mean seed weight rather than a decrease in the number of seeds per fruit”
✓ located verbatim in the source · abstract, characters 817–964

Title

Fruit-set order affects seed yield and germinability in melon (Cucumis meloL.)

H. Nerson The Journal of Horticultural Science and Biotechnology 2004. doi:10.1080/14620316.2004.11511878

Other claims from this paper (9)

Association Fruit weight and seed yield per fruit declined with later fruit-set order.
Association Fruits of the same order usually did not differ significantly across plant fruit counts.
Association Fruit weight declined more than seed yield in later fruits.
Association Small, late fruits produced seeds more efficiently.
Association Fruit-set order significantly affected germination percentage.
Association Later set fruit had greater germination percentage.
Association The germination gain was stronger when fruit was harvested before or after maturity.
Association Fruit number and set order did not significantly affect mean days to germination.
Intervention effect Seed storage for up to five years improved germination rate.

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Potential soybean yield would decrease in most parts of China due to direct aerosol radiation effects.

Taxon: soybeanGlycine maxe1
Treatment: direct aerosol radiation effectse1
Outcome: potential yieldse1
Direction: decreasee1
Setting: most parts of Chinae1

Verbatim

e1
“the potential yields of soybean would decrease in most parts of China due to direct aerosol radiation effects”
✓ located verbatim in the source · abstract, characters 429–538

Title

Impacts of aerosol meteorological feedback on China's yield potential of soybean

Xinyan Wang; Linxiao Zhu; Yueting Hao; et al. Meteorological Applications 2024. doi:10.1002/met.2198

Other claims from this paper (4)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The yield reduction was associated with an approximately 25% decrease in individual fresh fruit weight.

Taxon: TomatoesSolanum lycopersicumt0
Outcome: individual fresh fruit weighte0
Direction: decreasee0
Value: approximately 25%e0

Verbatim

t0
“Tomatoes”
✓ located verbatim in the source · title, characters 86–94

e0
“This yield reduction was not caused by the fruit number, but by an approximately 25% decrease in individual fresh fruit weight.”
✓ located verbatim in the source · abstract, characters 789–916

Title

The Effect of Electrical Conductivity on Fruit Growth Pattern in Hydroponically Grown Tomatoes

Takafumi Watabe; Yuka Nakano; Dong-Hyuk Ahn Crops 2022. doi:10.3390/crops2030023

Other claims from this paper (8)

Intervention effect Increasing EC decreased tomato fruit yield by approximately 20% in both cultivars.
Intervention effect Increasing EC raised tomato fruit dry matter content by 0.5–1% in both cultivars.
Observation Fruit number did not account for the tomato yield reduction.
Intervention effect High EC decreased the decay rate of fruit dry matter content in the Japanese cultivar.
Observation Under low EC, the fruit water weight change rate increased around 585 °C-days after anthesis.
Observation Under low EC, the fruit dry weight change rate increased around 480 °C-days after anthesis.
Intervention effect High EC changed fruit water increase rates, with opposite shifts in the two cultivars.
Intervention effect EC treatment did not affect fruit dry weight increase.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Under limiting Zn, grain yield tended to decrease as young-tissue P concentration increased.

Taxon: cornZea mays subsp. mayst0
Outcome: grain yieldse0
Direction: decreasee0
Qualifier: increasing P concentrations in young plant tissuese0

Not reportedMaterialGeneInteractorInteractor roleTreatmentComparatorSettingValue

Verbatim

e0
“When Zn was limiting, grain yields tended to decrease with increasing P concentrations in young plant tissues.”
✓ located verbatim in the source · abstract, characters 1045–1155

t0
“Corn”
✓ located verbatim in the source · title, characters 83–87

Title

Effects of Ammonium Polyphosphates on Yield¹ and Chemical Composition of Irrigated Corn

D. C. Adriano; L. S. Murphy Agronomy Journal 1970. doi:10.2134/agronj1970.00021962006200050003x

Other claims from this paper (9)

Intervention effect Banded P at 40 kg/ha increased Zn deficiency severity.
Intervention effect ZnSO4 at 11.2 kg Zn/ha corrected deficiency in banded-P corn.
Intervention effect Banded APP tended to induce more severe Zn deficiency than MAP with inadequate Zn.
Intervention effect With adequate Zn, APP and MAP produced comparable growth and grain yields.
Association Yield depressions under banded APP without adequate Zn were associated with higher plant P content than MAP.
Association High plant P levels co-occurred with low plant Zn levels.
Intervention effect Banded P raised plant P concentrations relative to broadcast P.
Intervention effect Banded P caused more severe Zn deficiency than broadcast P.
Association With adequate Zn, young-tissue P concentration correlated positively with grain yield.

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

The projected maize yield decrease was greater under RCP8.5 than RCP4.5.

Taxon: maizeZea mayse0
Treatment: RCP8.5e0
Outcome: maize yielde0
Direction: greatere0
Comparator: RCP4.5e0

Verbatim

e0
“the decrease in maize yield under RCP8.5 was predicted to be greater than that under RCP4.5.”
✓ located verbatim in the source · abstract, characters 1490–1582

Title

Potential Impacts of Climate Change and Adaptation on Maize in Northeast China

Yumei Lin; Zhiming Feng; Wenxiang Wu; et al. Agronomy Journal 2017. doi:10.2134/agronj2016.05.0275

Other claims from this paper (6)

Observation Maize yield was projected to continue declining under both RCP scenarios.
Observation CO2 fertilization was projected to be too small to offset climate damage.
Intervention effect Changing planting dates could mitigate negative climate impacts.
Intervention effect Switching to later maturing cultivars could mitigate negative climate impacts.
Intervention effect Breeding high thermal time cultivars could mitigate negative climate impacts.
Observation Switching cultivars may have the strongest maize yield benefit.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Rice yield tended to decrease as continual direct sowing continued and soil nitrogen supply fell.

Taxon: riceOryza sativae0
Treatment: continuance of direct sowing culturee0
Outcome: rice yielde0
Direction: decreasee0
Qualifier: fall of nitrogen supplying potentiality of soile0

Verbatim

e0
“There was observed a tendency of rice yield decrease by the continuance of direct sowing culture accompanied with the fall of nitrogen supplying potentiality of soil”
✓ located verbatim in the source · abstract, characters 1438–1603

Title

Studies on the Causes of Rice Yield Decrease Resulting from Continual Direct Sowing Culture : III. In Relation to the nitrogen supplying potentiality of soil

Yoshimasa UEMURA; Akira MIYASAKA Japanese Journal of Crop Science 1974. doi:10.1626/jcs.43.174

Other claims from this paper (5)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Shading at all three stages caused a significant decrease in both yield and grain weight of winter wheat.

Taxon: Winter WheatTriticum aestivumt0
Treatment: Shading at all three stagese0
Outcome: yield and grain weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“Winter Wheat”
✓ located verbatim in the source · title, characters 100–112

e0
“Shading at all three stages caused a significant decrease in both yield and grain weight”
✓ located verbatim in the source · abstract, characters 604–692

Title

Effects of Weak Light at Grain Filling Stage on Photosynthetic Characteristics and Grain Filling of Winter Wheat

Zhenlin Wang Mailei zuowu xuebao 2011

Other claims from this paper (11)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Treatment with 150 mM NaCl led to a significant decrease in tomato yield.

Taxon: tomatoSolanum lycopersicumt0
Treatment: 150Mm NaCle0
Outcome: yielde0
Direction: decreasee0
Comparator: controle0

Verbatim

t0
“tomato”
✓ located verbatim in the source · title, characters 128–134

e0
“plants treated with 150Mm NaCl also produced much smaller fruits than control leading to significant decrease in yield”
✓ located verbatim in the source · abstract, characters 1041–1159

Title

Salt stress induces SFT expression to promote early flowering and inhibits floral organ development by disturbing cell cycle in tomato

Fengze Sun; Yahui Wang; Genzhong Liu; et al. Vegetable Research 2024. doi:10.48130/vegres-0024-0017

Other claims from this paper (9)

Intervention effect Salt stress significantly reduced tomato plant biomass compared with the control.
Intervention effect Tomato plants treated with 50-150 mM NaCl showed an early flowering phenotype relative to the control.
Intervention effect Tomato plants treated with 50-150 mM NaCl produced smaller flowers relative to the control.
Intervention effect The SFT gene was upregulated under salt stress in tomato, as shown by RT-qPCR.
Intervention effect Salt treatment decreased tomato seedling biomass, particularly in the floral organ.
Intervention effect Tomato plants treated with 150 mM NaCl produced much smaller fruits than the control.
Intervention effect Nuclear DNA ploidy analysis showed significant impacts of salt stress on intranuclear replication in tomato sepals and petals.
Mechanism The authors indicate that salt stress disrupts the cell cycle in floral organs, primarily by influencing transcription of CycA2;1 and CycB1;2.
Mechanism The authors conclude that salt stress promotes early flowering in tomato by inducing SFT expression.

Associationauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Grass cover crops not properly managed decrease crop yield

Taxon: grass-based cover cropst0
Treatment: not properly managede2
Outcome: crop yielde2
Direction: decreasee2
Qualifier: compete with cash crops, immobilize soil Ne2

Verbatim

t0
“grass-based cover crops”
✓ located verbatim in the source · title, characters 45–68

e2
“if not properly managed, grass cover crops can compete with cash crops, immobilize soil N, and decrease crop yield”
✓ located verbatim in the source · abstract, characters 1130–1244

Title

Ecosystem services and management options of grass-based cover crops in Mediterranean climates: a review

Aurelio Scavo; Francesca Calderone; Aurora Maio; et al. Agronomy for Sustainable Development 2026. doi:10.1007/s13593-026-01113-x

Other claims from this paper (6)

“yield decrease”

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