Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Maize yield decreased from generation 17 onward.

Taxon: Zea maysZea mayst0
Outcome: decrease in yielde0
Direction: decreasee0
Qualifier: from generation 17 onwardse0

Verbatim

e0
“decrease in yield from generation 17 onwards”
✓ located verbatim in the source · abstract, characters 133–177

t0
“Zea mays 'Hays Golden'”
✓ located verbatim in the source · abstract, characters 68–90

Title

Quantitative genetic studies and population improvement in maize and sorghum

C Gardner 1976

Other claims from this paper (6)

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

US maize yield was projected to decrease 13.5% under 2 °C warming.

Taxon: maizeZea mayse0
Outcome: maize yielde0
Direction: decreasee0
Value: 13.5%e0
Qualifier: 2 °C global warming scenario (by ∼2050 s)e0

Verbatim

e0
“US maize yield is projected to decrease by 13.5% under the 2 °C global warming scenario (by ∼2050 s)”
✓ located verbatim in the source · abstract, characters 1151–1251

Title

Predicting spatial and temporal variability in crop yields: an inter-comparison of machine learning, regression and process-based models

Guoyong Leng; Jim W Hall Environmental Research Letters 2020. doi:10.1088/1748-9326/ab7b24

Other claims from this paper (9)

Method / resource Regression and machine learning reproduced observed yield-average patterns.
Method / resource Process-based crop models had large bias in yield averages despite harmonized parameters.
Method / resource Machine learning had the best skill for yield distributions, followed by regression and process-based models.
Method / resource Machine learning explained 93% of observed yield variability.
Method / resource Regression explained 51% of observed yield variability.
Method / resource Process-based models explained 42% of observed yield variability.
Observation Baseline low-yield years were projected in 19% of years at 1.5 °C warming.
Observation Baseline low-yield years were projected in 25% of years at 2 °C warming.
Method / resource Machine learning and regression were computationally more efficient than process-based models.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

TS showed a smaller yield decrease under serious stress than non-transgenic sweet potato.

Taxon: sweet potatoIpomoea batatase0
Material: Transgenic sweet potatoe0
Treatment: serious stresse0
Outcome: decrease tendency of yield formatione0
Direction: smallere0
Comparator: non-transgenic sweet potatoe0

Verbatim

e0
“Transgenic sweet potato has a higher yield formation and a smaller decrease tendency of yield formation under serious stress compared with non-transgenic sweet potato”
✓ located verbatim in the source · abstract, characters 1386–1552

Title

Water use efficiency and physiological metabolism of vegetatively propagated transgenic sweet potato under drought stress

Cheng YuJie; Xiaobing Wu; Xiping Deng; et al. Xibei zhiwu xuebao 2012

Other claims from this paper (9)

Observation SOD and APX activities and soluble sugar content were higher in TS than NT.
Observation POD activity was lower in TS than NT.
Association APX activity, soluble sugar, photosynthesis and transpiration declined with increasing drought stress.
Observation Photosynthetic parameters declined between day 20 and day 70.
Observation Photosynthetic rates did not differ significantly between TS and NT.
Intervention effect Yield was highest under moderate stress and lowest under serious stress.
Observation TS had higher yield formation than non-transgenic sweet potato.
Observation TS had significantly lower stomatal conductance and transpiration than NT across three drought treatments.
Mechanism TS had higher water use efficiency than NT.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

MYMV susceptible progenies had a 32.2 to 78.6 percent decrease in grain yield per plant.

Taxon: mungbeanVigna radiatat1
Interactor: mungbean yellow mosaic virus (MYMV)Mungbean yellow mosaic virust0pathogen
Outcome: grain yield per plante0
Direction: decreasee0
Value: 32.2 to 78.6 percente0

Verbatim

t0
“mungbean yellow mosaic virus (MYMV)”
✓ located verbatim in the source · title, characters 10–45

t1
“mungbean (Vigna radiata (L.) wilczek)”
✓ located verbatim in the source · title, characters 79–116

e0
“32.2 to 78.6 percent decrease in grain yield per plant”
✓ located verbatim in the source · abstract, characters 440–494

Title

Effect of mungbean yellow mosaic virus (MYMV) on yield and yield components of mungbean (Vigna radiata (L.) wilczek).

Gul Sanat Shah Khattak; Muhammad Ahsan ul Haq; Sohel Rana; et al. Witthayasan Kasetsat Witthayasat 2000. doi:10.1016/j.eururo.2004.10.011

Other claims from this paper (8)

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

M1 and M2 retained ear weight and grain yield per plant without notable decrease.

Taxon: maizeZea mayst0
Material: M1 and M2e0
Outcome: ear weight and grain yield per plante0
Direction: did not notably decreasee0

Verbatim

e0
“The ear weight and grain yield per plant of M1 and M2 did not notably decrease”
✓ located verbatim in the source · abstract, characters 3196–3274

t0
“maize breeding”
✓ located verbatim in the source · title, characters 98–112

Title

CRISPR/Cas9‐mediated genomic editing of Brachytic2 creates semi‐dwarf mutant alleles for tailored maize breeding

Binbin Zhao; Zhanchao Xia; Changhe Sun; et al. Plant Biotechnology Journal 2025. doi:10.1111/pbi.14571

Other claims from this paper (19)

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Yield decrease at flower organ differentiation was hardly recognized.

Taxon: naked barleyt0
Organ / stage: flower organe1
Outcome: yield decreasee0
Direction: hardly recognizede0

Verbatim

e0
“But the yield decrease was hardly recognized, because of the few abnormality in ears and the good fertility in seeds.”
✓ located verbatim in the source · abstract, characters 452–569

t0
“naked barley "Hashirihadaka" caused by the unusual low temperature”
✓ located verbatim in the source · abstract, characters 39–105

e1
“Damages of plants at the differentiation stage of flower organ.”
✓ located verbatim in the source · abstract, characters 295–358

Title

Studies on Cold Injury in Different Growing Stage of Naked Barley.

Hiroyuki TAKAHASHI; Shunji HIGASHI; Satoru KAGOHASHI; et al. Japanese Journal of Crop Science 1959. doi:10.1626/jcs.27.393

Other claims from this paper (9)

Observation Cold injury at flower organ differentiation slightly delayed growth and injured some ears.
Observation Some pollen mother cells were injured, with irregular development, degeneration and corruption.
Observation Ears that had already headed showed partial sterility during booting to heading.
Observation At booting to heading, pollen abnormalities included fewer microspores, vacuolate pollen and empty anthers.
Observation Cold injury at heading to flowering made ears white.
Observation Almost all white ears were partly or fully sterile.
Observation Culm elongation was poor and stalk heights varied.
Observation Cold injury stopped pollen development and caused death and corruption.
Observation Abnormalities occurred in ovaries and anthers.

Observationauthor interpretationoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Grain yield might not decrease significantly when Zaoxian A is used as a parent.

Taxon: indica-japonica hybrid ricee1
Material: Zaoxian Ae0
Outcome: grain yielde0
Direction: might not decreasee0

Verbatim

e0
“Using male sterile line Zaoxian A with a dominant earnness gene as a parent could reduce growth period duration for about 17 days, while grain yield might not decrease significantly.”
✓ located verbatim in the source · abstract, characters 167–349

e1
“indica-japonica hybrid rice”
✓ located verbatim in the source · abstract, characters 30–57

Title

Studies on Earliness of Indica-Japonica Hybrid Rice

Cao Liyon Zhongguo shuidao kexue 1997

Other claims from this paper (1)

Observation Using Zaoxian A as a parent reduced hybrid rice growth period by about 17 days.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Yield decrease did not differ among varieties.

Taxon: japonica riceOryza sativa Japonica Groupt0
Outcome: rate of decreasee0
Direction: not observed differencee0

Verbatim

e0
“Therefore, rice yield, can be reduced in proportion to the shading density is apparent, the rate of decrease was not observed difference between varieties, when protected from light 70%, and decreased to less than 50%.”
✓ located verbatim in the source · abstract, characters 2053–2271

t0
“japonica rice”
✓ located verbatim in the source · title, characters 90–103

Title

Change of photosynthetic efficiency and yield by low light intensity on ripening stage in japonica rice

Min Hee Lee; Shin-Gu Kang; Wan-Gyu Sang; et al. Korean Journal of Agricultural Science 2014. doi:10.7744/cnujas.2014.41.4.327

Other claims from this paper (9)

Observation Fv/Fm and SPAD declined over time under full sunlight.
Intervention effect Shading did not change these photosynthetic indicators.
Observation No significant cultivar difference appeared for the photosynthetic indicators.
Intervention effect Shading delayed ripening rate compared with full sunlight.
Intervention effect Shading decreased rice quality compared with full sunlight.
Association Rice yield decreased as shading density increased.
Intervention effect Nitrogen level did not significantly mitigate low light effects on yield and yield components.
Intervention effect Shading increased white rice protein content, more at 70% than 50% shade.
Intervention effect Shading tended to decrease amylose content.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Alvand and Shahriar had the largest yield decrease and smallest proline increase under severe stress.

Taxon: wheatTriticum aestivumt0
Material: ‘Alvand’ and ‘Shahriar’e0
Outcome: major decrease in seed yield and the minimum increase in proline contente0

Verbatim

e0
“Under severe water stress conditions, the major decrease in seed yield and the minimum increase in proline content were documented in ‘Alvand’ and ‘Shahriar’.”
✓ located verbatim in the source · abstract, characters 1599–1757

t0
“wheat varieties”
✓ located verbatim in the source · title, characters 59–74

Title

Effects of water deficit stress and nitrogen fertilizer on wheat varieties

International Journal of Biosciences (IJB) 2014. doi:10.12692/ijb/4.9.183-189

Other claims from this paper (19)

Intervention effect Seed yield was maximal with 80 Kg ha -1 nitrogen fertilizer.
Intervention effect Proline content was maximal with 80 Kg ha -1 nitrogen fertilizer.
Association Year significantly affected seed yield.
Association Year did not significantly affect proline content.
Intervention effect Under severe water stress and 80 Kg ha-1 nitrogen, Alvand yield fell 72.17% in the first year versus normal conditions.
Intervention effect Under severe stress, Shahryar yield decreased 75.37% in the first year.
Intervention effect Under severe stress, PGS 01-60-335 yield decreased 54.18% in the first year.
Intervention effect Under severe stress, IDW 01-61-130 yield decreased 44.81% in the first year.
Intervention effect Alvand yield declined 72.03% in the second year under severe stress.
Intervention effect Shahryar yield declined 71.31% in the second year under severe stress.
Intervention effect PGS 01-60-335 yield declined 55.62% in the second year under severe stress.
Intervention effect IDW 01-61-130 yield declined 45.51% in the second year under severe stress.
Intervention effect Alvand flag leaf proline content increased 16.17 fold under severe stress.
Intervention effect Shahriar flag leaf proline content increased 15,76 fold.
Intervention effect PGS 01-60-335 flag leaf proline content increased 19.43 fold.
Intervention effect Durum 01-61-130 flag leaf proline content increased 20.39 fold.
Observation Under severe stress, IDW 01-61-130 had maximum yield and Shahriar minimum yield.
Observation PGS 01-60-335 and IDW 01-61-130 had the lowest yield decreases and greatest proline increases.
Observation Nitrogen fertilization had negligible potential to compensate for drought related yield damage.

Observationobservedoriginal resultnegativeprojected

Claim · model-written summary

Southern Finnish spring wheat faces a projected 30% probability of yield decrease owing to high temperature and drought.

Taxon: wheatTriticum aestivume0
Material: spring wheate0
Treatment: high temperature and droughte0
Outcome: yield decreasee0
Direction: decreasee0
Value: about 30%e0
Setting: southern Finlande0

Verbatim

e0
“in some areas of southern Finland, wheat production will face increasing risk of high temperature and drought, which can offset the benefits of climate change on wheat yield, resulting in an increase in yield variability and about 30% probability of yield decrease for spring wheat”
✓ located verbatim in the source · abstract, characters 914–1195

Title

Assessing climate effects on wheat yield and water use in Finland using a super-ensemble-based probabilistic approach

F Tao; RP Rötter; T Palosuo; et al. Climate Research 2015. doi:10.3354/cr01318

Other claims from this paper (5)

“yield decrease”

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