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“yield decrease”

10,311 matches

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1950 ’60 ’70 ’80 ’90 2000 ’10 ’20

plus 14 earlier · 1910s–1940s

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Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The seed yield decrease in pinto beans was comparable to reductions in leaf and stem biomass.

Taxon: pinto beanst0
Outcome: decrease in seed yielde0
Direction: decreasee0
Comparator: reductions in biomass of leaves and stemse0

Verbatim

e0
“the decrease in seed yield was comparable to reductions in biomass of leaves and stems”
✓ located verbatim in the source · abstract, characters 579–665

t0
“pinto beans”
✓ located verbatim in the source · title, characters 67–78

Title

Effects of simulated acid rain on growth and yield of soybeans and pinto beans

Levi Evans; Keith F. Lewin OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) 1979

Other claims from this paper (7)

Intervention effect Rain at pH 3.1 and below decreased seed, leaf and stem dry mass in pinto beans.
Mechanism The reduced yield of pinto beans was attributed to fewer pods per plant.
Mechanism The reduced yield of pinto beans was attributed to fewer seeds per pod.
Intervention effect Simulated acid rain decreased soybean stem and leaf dry mass.
Intervention effect Rain at pH 2.5 decreased soybean seed yield.
Intervention effect Rain at pH 3.1 increased soybean seed yield.
Mechanism Greater dry mass per seed accounted for the greater soybean seed mass per plant.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Further decrease in plant spacing in broccoli caused an abrupt reduction in yield.

Taxon: broccoliBrassica oleracea var. italicat0
Treatment: Further decrease in the space between plantse4
Outcome: yielde4
Direction: abrupt reductione4

Not reportedComparator

Verbatim

t0
“Plant spacing in broccoli”
✓ located verbatim in the source · title, characters 0–25

e4
“Further decrease in the space between plants results in an abrupt reduction in yield”
✓ located verbatim in the source · abstract, characters 442–526

Title

Plant spacing in broccoli: —Affects yield, head size, earliness

T. S. Aldrich; M Snyder; Thomas M. Little DOAJ (DOAJ: Directory of Open Access Journals) 1961

Other claims from this paper (2)

Association Closer plant spacing in broccoli produced smaller heads.
Intervention effect Total yield of broccoli increased to a maximum when spacing was reduced to 8 or 11 inches.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salt stress caused a linear decrease in biological yield.

Taxon: RiceOryza sativat0
Treatment: Salt stresse0
Outcome: biologicale0
Direction: decreasee0

Not reportedComparator

Verbatim

t0
“Rice (Oryza sativa L.) Cultivars”
✓ located verbatim in the source · title, characters 78–110

e0
“Salt stress induced a linear decrease in biological and paddy yield and total plant biomass”
✓ located verbatim in the source · abstract, characters 597–688

Title

Consequence of Salinity on Biological Yield, Grain Yield and Harvest Index in Rice (Oryza sativa L.) Cultivars

Yogesh Mishra; D. K. Dwivedi; Pramila Pandey Environment and Ecology 2014

Other claims from this paper (14)

Intervention effect Salinity did not affect tiller number in rice.
Intervention effect Salinity significantly affected flag leaf area during grain filling.
Association Grain yield per plant had a highly significant positive genotypic correlation with biological yield.
Association Grain yield per plant had a highly significant positive genotypic correlation with harvest index.
Association Grain yield per plant had a highly significant positive phenotypic correlation with harvest index.
Association Grain yield per plant had a highly significant positive phenotypic correlation with biological yield.
Intervention effect Salt stress caused a linear decrease in paddy yield.
Intervention effect Salt stress caused a linear decrease in total plant biomass.
Association Harvest index followed a second degree equation under salt stress.
Association Harvest index had the highest positive direct phenotypic effect on grain yield per plant.
Association Grains per panicle had the highest positive direct genotypic effect on grain yield per plant.
Observation Rice showed moderate resistance to salinity.
Observation Rice showed a great degree of genotypic variation for salinity response.
Recommendation The authors consider development of varieties with enhanced salt tolerance possible with appropriate strategies and advanced techniques.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Tree canopy cover within fields tended to decrease crop yield.

Outcome: crop yielde0
Direction: decreasee0
Setting: inside the fieldse0

Not reportedTaxonTreatment

Verbatim

e0
“tree canopy cover and tree density inside the fields tended to decrease crop yield”
✓ located verbatim in the source · abstract, characters 654–736

Title

Exploring the landscape scale influences of tree cover on crop yield in an agroforestry parkland using satellite data and spatial statistics

Martin Karlson; David Bolin; Hugues Roméo Bazié; et al. Journal of Arid Environments 2023. doi:10.1016/j.jaridenv.2023.105051

Other claims from this paper (6)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The average yield decrease rate was -13.9% in the 1980s.

Taxon: potatoSolanum tuberosumt0
Outcome: average yield decrease ratee0
Direction: decreasee0
Value: -13.9%e0
Qualifier: 1980se0

Verbatim

e0
“The average yield decrease rate in the 1980s, 1990s, 2000s, and 2010s was -13.9%, -15.4%, -9.1%, and -7.3%, respectively”
✓ located verbatim in the source · abstract, characters 1220–1340

t0
“potato”
✓ located verbatim in the source · title, characters 37–43

Title

Dynamic assessment and prediction of potato disaster loss risk in Gansu Province, China

Feng Fang; Jing Wang; Jianying Jia; et al. Ecological Indicators 2024. doi:10.1016/j.ecolind.2024.112626

Other claims from this paper (14)

Observation Potato disaster loss decreased considerably since 2000.
Observation The average yield decrease rate was -15.4% in the 1990s.
Observation The average yield decrease rate was -9.1% in the 2000s.
Observation The average yield decrease rate was -7.3% in the 2010s.
Observation The share of counties susceptible to severe yield loss was 26.1% in the 1980s.
Observation The share of counties susceptible to severe yield loss was 39.1% in the 1990s.
Observation The share of counties susceptible to severe yield loss was 22.9% in the 2000s.
Observation The share of counties susceptible to severe yield loss was 12.9% in the 2010s.
Observation Most counties were in medium-low or low potato production risk regions.
Observation Eastern and southern Gansu were particularly vulnerable to catastrophic calamities.
Observation High-risk counties clustered in Qingyang and Longnan.
Observation Low-risk counties concentrated in Wuwei and Gannan.
Observation The comprehensive risk shifted southeast-west-north over a short distance.
Method / resource The Interpolation-EMD-SVM scheme increased disaster loss risk prediction accuracy.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The average yield decrease rate was -15.4% in the 1990s.

Taxon: potatoSolanum tuberosumt0
Outcome: average yield decrease ratee0
Direction: decreasee0
Value: -15.4%e0
Qualifier: 1990se0

Verbatim

e0
“The average yield decrease rate in the 1980s, 1990s, 2000s, and 2010s was -13.9%, -15.4%, -9.1%, and -7.3%, respectively”
✓ located verbatim in the source · abstract, characters 1220–1340

t0
“potato”
✓ located verbatim in the source · title, characters 37–43

Title

Dynamic assessment and prediction of potato disaster loss risk in Gansu Province, China

Feng Fang; Jing Wang; Jianying Jia; et al. Ecological Indicators 2024. doi:10.1016/j.ecolind.2024.112626

Other claims from this paper (14)

Observation Potato disaster loss decreased considerably since 2000.
Observation The average yield decrease rate was -13.9% in the 1980s.
Observation The average yield decrease rate was -9.1% in the 2000s.
Observation The average yield decrease rate was -7.3% in the 2010s.
Observation The share of counties susceptible to severe yield loss was 26.1% in the 1980s.
Observation The share of counties susceptible to severe yield loss was 39.1% in the 1990s.
Observation The share of counties susceptible to severe yield loss was 22.9% in the 2000s.
Observation The share of counties susceptible to severe yield loss was 12.9% in the 2010s.
Observation Most counties were in medium-low or low potato production risk regions.
Observation Eastern and southern Gansu were particularly vulnerable to catastrophic calamities.
Observation High-risk counties clustered in Qingyang and Longnan.
Observation Low-risk counties concentrated in Wuwei and Gannan.
Observation The comprehensive risk shifted southeast-west-north over a short distance.
Method / resource The Interpolation-EMD-SVM scheme increased disaster loss risk prediction accuracy.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The average yield decrease rate was -9.1% in the 2000s.

Taxon: potatoSolanum tuberosumt0
Outcome: average yield decrease ratee0
Direction: decreasee0
Value: -9.1%e0
Qualifier: 2000se0

Verbatim

e0
“The average yield decrease rate in the 1980s, 1990s, 2000s, and 2010s was -13.9%, -15.4%, -9.1%, and -7.3%, respectively”
✓ located verbatim in the source · abstract, characters 1220–1340

t0
“potato”
✓ located verbatim in the source · title, characters 37–43

Title

Dynamic assessment and prediction of potato disaster loss risk in Gansu Province, China

Feng Fang; Jing Wang; Jianying Jia; et al. Ecological Indicators 2024. doi:10.1016/j.ecolind.2024.112626

Other claims from this paper (14)

Observation Potato disaster loss decreased considerably since 2000.
Observation The average yield decrease rate was -13.9% in the 1980s.
Observation The average yield decrease rate was -15.4% in the 1990s.
Observation The average yield decrease rate was -7.3% in the 2010s.
Observation The share of counties susceptible to severe yield loss was 26.1% in the 1980s.
Observation The share of counties susceptible to severe yield loss was 39.1% in the 1990s.
Observation The share of counties susceptible to severe yield loss was 22.9% in the 2000s.
Observation The share of counties susceptible to severe yield loss was 12.9% in the 2010s.
Observation Most counties were in medium-low or low potato production risk regions.
Observation Eastern and southern Gansu were particularly vulnerable to catastrophic calamities.
Observation High-risk counties clustered in Qingyang and Longnan.
Observation Low-risk counties concentrated in Wuwei and Gannan.
Observation The comprehensive risk shifted southeast-west-north over a short distance.
Method / resource The Interpolation-EMD-SVM scheme increased disaster loss risk prediction accuracy.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The average yield decrease rate was -7.3% in the 2010s.

Taxon: potatoSolanum tuberosumt0
Outcome: average yield decrease ratee0
Direction: decreasee0
Value: -7.3%e0
Qualifier: 2010se0

Verbatim

e0
“The average yield decrease rate in the 1980s, 1990s, 2000s, and 2010s was -13.9%, -15.4%, -9.1%, and -7.3%, respectively”
✓ located verbatim in the source · abstract, characters 1220–1340

t0
“potato”
✓ located verbatim in the source · title, characters 37–43

Title

Dynamic assessment and prediction of potato disaster loss risk in Gansu Province, China

Feng Fang; Jing Wang; Jianying Jia; et al. Ecological Indicators 2024. doi:10.1016/j.ecolind.2024.112626

Other claims from this paper (14)

Observation Potato disaster loss decreased considerably since 2000.
Observation The average yield decrease rate was -13.9% in the 1980s.
Observation The average yield decrease rate was -15.4% in the 1990s.
Observation The average yield decrease rate was -9.1% in the 2000s.
Observation The share of counties susceptible to severe yield loss was 26.1% in the 1980s.
Observation The share of counties susceptible to severe yield loss was 39.1% in the 1990s.
Observation The share of counties susceptible to severe yield loss was 22.9% in the 2000s.
Observation The share of counties susceptible to severe yield loss was 12.9% in the 2010s.
Observation Most counties were in medium-low or low potato production risk regions.
Observation Eastern and southern Gansu were particularly vulnerable to catastrophic calamities.
Observation High-risk counties clustered in Qingyang and Longnan.
Observation Low-risk counties concentrated in Wuwei and Gannan.
Observation The comprehensive risk shifted southeast-west-north over a short distance.
Method / resource The Interpolation-EMD-SVM scheme increased disaster loss risk prediction accuracy.

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Disease progress curve area was significantly correlated with sugar beet yield decrease.

Taxon: sugar beetBeta vulgaris subsp. vulgarist0
Outcome: yield decreasee0
Direction: decreasee0
Qualifier: area under the disease progress curve values (AUDPC)e0
Setting: disease progress curvee0

Verbatim

e0
“The area under the disease progress curve values (AUDPC) was significantly correlated with yield decrease”
✓ located verbatim in the source · abstract, characters 1244–1349

t0
“sugar beet”
✓ located verbatim in the source · title, characters 71–81

Title

A picolinamide fungicide for controlling Cercospora-leaf spot (CLS) of sugar beet

Akos F. Biró; Andy J. Leader; Andrea Hufnagl; et al. BIO Web of Conferences 2024. doi:10.1051/bioconf/202412501007

Other claims from this paper (5)

Intervention effect Florylpicoxamid controlled Cercospora leaf spot effectively relative to untreated plots.
Intervention effect Florylpicoxamid controlled Cercospora leaf spot effectively relative to difenoconazole.
Intervention effect Florylpicoxamid controlled Cercospora leaf spot effectively relative to epoxiconazole.
Observation All tested florylpicoxamid dose rates effectively controlled Cercospora leaf spot.
Association Disease progress curve area was not correlated with sugar content of sugar beet roots.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Barley monoculture yield decrease was usually minor on fertile soils in Denmark.

Taxon: barleyHordeum vulgaree0
Outcome: decreasee0
Direction: decreasee0
Qualifier: fertile soilse0
Setting: Denmarke0

Verbatim

e0
“In barley, which is dominating in Denmark, the decrease on fertile soils is usually of minor importance.”
✓ located verbatim in the source · abstract, characters 1358–1462

Title

Danish Experiences with Cereals in Monoculture¹

A. Jensen EPPO Bulletin 1975. doi:10.1111/j.1365-2338.1975.tb02477.x

Other claims from this paper (19)

Intervention effect Cereal monoculture led to yield depletion.
Mechanism take‐all was a main factor in cereal yield loss.
Mechanism eyespot was a main factor in cereal yield loss.
Observation New barley varieties were highly resistant to the cereal cyst nematode.
Mechanism The named parasites did not explain all yield losses.
Observation Barley monoculture yield declining the first 2–4 years.
Observation Barley monoculture yield remains stable after that.
Observation Barley monoculture take‐all declines after that.
Intervention effect Adding straw to the soil had little effect on barley yield or disease.
Intervention effect burning it had little effect on barley yield or disease.
Intervention effect Postharvest soil treatments had little effect.
Observation The largest barley monoculture yield decrease occurred in years three to five.
Intervention effect Postharvest soil treatment had little effect on disease and yield except on heavily weed infested land.
Observation The cereal root nematode remained a threat to oat and spring wheat.
Intervention effect Monocultures of different host plants reduced nematode populations.
Intervention effect Benomyl successfully controlled eyespot in winter wheat.
Intervention effect Benomyl successfully controlled eyespot in winter rye.
Observation Field chemical control of take-all appeared infeasible despite good laboratory tests.
Observation Breeding for take-all resistance was judged difficult and of doubtful economic value.

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“yield decrease”

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