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“yield decrease”

12,432 matches

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plus 1,248 non-evaluative

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1950 ’60 ’70 ’80 ’90 2000 ’10 ’20

plus 13 earlier · 1920s–1940s

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reducing effective soil depth reduced sorghum grain protein content by 16.51% in calcareous soil.

Taxon: SORGHUMSorghumt0
Treatment: reducing effective soil depths from deep to shallow water tablee0
Outcome: grain proteincontente0
Direction: decreasee0
Value: 16.51e0
Comparator: deepe0
Setting: calcareous soile0

Verbatim

e0
“reducing effective soil depths from deep to shallow water table led todecrease plant height, panicle length, weight of 1000 grain, grain proteincontent and yield by 32.48, 24.13, 11.64, 11.78, and 86.55% in the Nilealluvial soil vs 34.2, 18.19, 11.97, 16.51 and 86.18% in the calcareous soil,respectively”
✓ located verbatim in the source · abstract, characters 1292–1596

t0
“SORGHUM”
✓ located verbatim in the source · title, characters 54–61

Title

IMPACT OF SALINITY LEVELS AND EFFECTIVE SOIL DEPTH ON SORGHUM PLANTS GROWN IN SOME NILE ALLUVIAL AND CALCAREOUS SOILS UNDER EL FAYOUM CONDITIONS

Abdel Aty M. Ibrahim; Ibrahim M. El-Samnoudi; Taia A. Abdel Mageed Fayoum Journal of Agricultural Research and Development /Fayoum Journal of Agricultural Research and Development 2006. doi:10.21608/fjard.2006.197570

Other claims from this paper (19)

Intervention effect Increasing salinity from normal to saline soil reduced sorghum plant height by 36.98% in Nile alluvial soil.
Intervention effect Increasing salinity reduced sorghum panicle length by 32.27% in Nile alluvial soil.
Intervention effect Increasing salinity reduced sorghum 1000-grain weight by 20.45% in Nile alluvial soil.
Intervention effect Increasing salinity reduced sorghum grain protein content by 29.95% in Nile alluvial soil.
Intervention effect Increasing salinity reduced sorghum grain yield by 57.46% in Nile alluvial soil.
Intervention effect Increasing salinity reduced sorghum plant height by 36.76% in calcareous soil.
Intervention effect Increasing salinity reduced sorghum panicle length by 33.31% in calcareous soil.
Intervention effect Increasing salinity reduced sorghum 1000-grain weight by 24.05% in calcareous soil.
Intervention effect Increasing salinity reduced sorghum grain protein content by 33.75% in calcareous soil.
Intervention effect Increasing salinity reduced sorghum grain yield by 59.14% in calcareous soil.
Intervention effect Reducing effective soil depth reduced sorghum plant height by 32.48% in Nile alluvial soil.
Intervention effect Reducing effective soil depth reduced sorghum panicle length by 24.13% in Nile alluvial soil.
Intervention effect Reducing effective soil depth reduced sorghum 1000-grain weight by 11.64% in Nile alluvial soil.
Intervention effect Reducing effective soil depth reduced sorghum grain protein content by 11.78% in Nile alluvial soil.
Intervention effect Reducing effective soil depth reduced sorghum yield by 86.55% in Nile alluvial soil.
Intervention effect Reducing effective soil depth reduced sorghum plant height by 34.2% in calcareous soil.
Intervention effect Reducing effective soil depth reduced sorghum panicle length by 18.19% in calcareous soil.
Intervention effect Reducing effective soil depth reduced sorghum 1000-grain weight by 11.97% in calcareous soil.
Intervention effect Reducing effective soil depth reduced sorghum yield by 86.18% in calcareous soil.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

IWM increased net returns above irrigation costs from $25.03 to $39.18/acre across stated pumping and diesel-cost ranges.

Taxon: cornZea mays subsp. mayse0
Treatment: IWMe0
Outcome: net returns above irrigation costse0
Direction: increasinge0
Value: $25.03 to $39.18/acree0
Qualifier: pumping depths ranging from 18 to 400 ft and diesel costs ranging from $1.60/gal to $3.70/gale0
Comparator: CONVe0

Verbatim

e0
“Relative to CONV, IWM decreased total water applied by 39.5% (P = 0.002) while increasing corn grain yield by 6.5 bu/acre (P = 0.0137), irrigation water use efficiency by 51.3% (P = 0.0062), and net returns above irrigation costs from $25.03 to $39.18/acre for pumping depths ranging from 18 to 400 ft and diesel costs ranging from $1.60/gal to $3.70/gal (P = 0.0115)”
✓ located verbatim in the source · abstract, characters 1393–1760

Title

Irrigation Water Management Technologies for Furrow-Irrigated Corn that Decrease Water Use and Improve Yield and On-Farm Profitability

G. D. Spencer; L. J. Krutz; L. L. Falconer; et al. Crop Forage & Turfgrass Management 2019. doi:10.2134/cftm2018.12.0100

Other claims from this paper (3)

Intervention effect IWM reduced total water applied by 39.5% relative to conventional irrigation.
Intervention effect IWM increased corn grain yield by 6.5 bu/acre relative to conventional irrigation.
Intervention effect IWM increased irrigation-water-use efficiency by 51.3% relative to conventional irrigation.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Three-year-average wheat grain yields were 4.79, 4.79, 4.29, 3.70, 3.20 and 2.40 Mg ha-1 dry weight for grain-only and the 1 February, 6 March, 17 March, 31 March and 13 April grazing termination dates, respectively.

Taxon: WheatTriticum aestivumt0
Treatment: grazing termination datese1
Outcome: grain yieldse0
Direction: decreaseinferrede0
Value: 4.79,4.79,4.29,3.70,3.20, and 2.40 Mg hae0
Comparator: ungrazede2

Verbatim

t0
“Wheat”
✓ located verbatim in the source · title, characters 28–33

e0
“grain yields were 4.79,4.79,4.29,3.70,3.20, and 2.40 Mg ha”
✓ located verbatim in the source · abstract, characters 928–986

e1
“1 February, 6 March, 17 March, 31 March, and 13 April grazing termination dates, respectively”
✓ located verbatim in the source · abstract, characters 1017–1110

e2
“An ungrazed”
✓ located verbatim in the source · abstract, characters 488–499

Title

Grazing Duration Effects on Wheat Growth and Grain Yield¹

S. R. Winter; E. K. Thompson Agronomy Journal 1987. doi:10.2134/agronj1987.00021962007900010023x

Other claims from this paper (14)

Intervention effect Wheat grazed until 1 February had reduced leaf area index, biomass and mean tiller weight compared with grain-only wheat.
Intervention effect Wheat grazed until 1 February had reduced height and single-seed weight compared with grain-only wheat.
Intervention effect Grain yield, tiller density at heading and harvest index of wheat grazed until 1 February were not reduced compared with grain-only wheat.
Intervention effect Grazing until 6 March or later progressively reduced wheat LAI, biomass and tiller weight.
Intervention effect Grazing until 6 March or later progressively reduced wheat height and single-seed weight.
Intervention effect Heading of wheat was delayed by late grazing.
Intervention effect Wheat tiller density was not reduced unless grazing continued past 31 March.
Intervention effect Wheat harvest index was not reduced unless grazing continued past 17 March.
Mechanism Grazing until 6 March or later appeared to reduce wheat grain yield by limiting leaf area index and biomass in the spring.
Mechanism Removal of spikes by grazing cattle cannot be a primary cause of the loss in wheat grain yield.
Intervention effect Grazing past the period of initial elongation of the first internode delayed internode elongation in wheat.
Observation Growth and grain yield responses of wheat to grazing duration were basically the same across growing seasons.
Observation The grazed wheat did not reach Feekes stage 6 until about 1 April.
Recommendation The delay in reproductive development caused by continued grazing should be considered when grazing termination decisions are based on stage of development.

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

The associated application of EBR and TFA could enhance the photosynthetic capacity and stress resistance of P. ternata.

Taxon: P. ternataPinellia ternatae1
Treatment: their associated applicatione3
Outcome: photosynthetic capacity and stress resistancee3
Direction: enhancee3

Not reportedComparator

Verbatim

e1
“The results show that soaking the seeds with EBR or coating the seeds with TFA could effectively enhance the plant height, leaf area, and stem diameter of CC P. ternata, promote its emergence seedling ratio, and decrease its inverted seedling ratio, and their associated application was found to be more efficient”
✓ located verbatim in the source · abstract, characters 772–1085

e3
“Meanwhile, their associated application could reliably enhance the photosynthetic capacity and stress resistance, and effectively improve the bulb quality and yield”
✓ located verbatim in the source · abstract, characters 1378–1542

Title

Impacts of Epihomobrassinolide and Thiamethoxam·Flutolanil·Azoxystrobin on the Continuous Cropping Stress of Pinellia ternata

Bing Tian; Chenglin Tang; Jiaqi Liu; et al. Horticulturae 2024. doi:10.3390/horticulturae10070696

Other claims from this paper (13)

Intervention effect Soaking seeds with EBR could enhance plant height, leaf area and stem diameter of continuously cropped P. ternata.
Intervention effect Coating seeds with TFA could enhance plant height, leaf area and stem diameter of continuously cropped P. ternata.
Intervention effect Soaking seeds with EBR promoted the emergence seedling ratio of P. ternata.
Intervention effect Coating seeds with TFA promoted the emergence seedling ratio of P. ternata.
Intervention effect Soaking seeds with EBR decreased the inverted seedling ratio of P. ternata.
Intervention effect Coating seeds with TFA decreased the inverted seedling ratio of P. ternata.
Intervention effect The combined application of EBR and TFA was more efficient than the individual treatments.
Intervention effect The associated application of EBR and TFA enhanced the intrinsic capacitance of P. ternata.
Intervention effect The associated application of EBR and TFA enhanced intracellular water metabolism, nutrient transport and metabolic activity of P. ternata.
Intervention effect The associated application of EBR and TFA decreased the intrinsic resistance, impedance and capacitive reactance of P. ternata.
Intervention effect The associated application of EBR and TFA decreased the inductive reactance of P. ternata.
Intervention effect The associated application of EBR and TFA improved the bulb quality and yield of P. ternata.
Recommendation The associated application of seeds soaked with EBR and seeds coated with TFA is recommended as a practicable technology for alleviating the continuous cropping stress of P. ternata.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The mutant matjan gamma 20 did not show an increase in behenic acid content compared with its parent.

Taxon: groundnutArachis hypogaeae0
Material: matjan gamma 20e0
Treatment: gamma radiatione0
Outcome: behenic acid contente1
Direction: without increasinge1
Comparator: parente1

Verbatim

e0
“The oil and protein compositions of a groundnut (Arachis hypogeae l.) mutant matjan gamma 20 induced by gamma radiation as well as the parent and three other genotypes were investigated”
✓ located verbatim in the source · abstract, characters 0–185

e1
“The mutant expressed several important improvements, over it parent including an increase in the oleic:linoleic ratio without increasing the behenic acid content, an increase on oil yield per kernel and an increase in tryptophan content without any decrease in protein content”
✓ located verbatim in the source · abstract, characters 187–463

Title

Oil and protein compositions of a groundnut (Arachis hypogaea l.) mutant matjan gamma 20

Caleb Cheah; N.H. Tan; H. T. Khor Universiti Putra Malaysia Institutional Repository (Universiti Putra Malaysia) 1990

Other claims from this paper (4)

Intervention effect The mutant matjan gamma 20 showed an increase in the oleic:linoleic ratio compared with its parent.
Intervention effect The mutant matjan gamma 20 showed an increase in oil yield per kernel compared with its parent.
Intervention effect The mutant matjan gamma 20 showed an increase in tryptophan content compared with its parent.
Intervention effect The mutant matjan gamma 20 showed no decrease in protein content compared with its parent.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Half the total amount of fertilizer (297 and 396 g per plant) is used with half the nutrient concentration compared with the complete nutrient solution.

Taxon: pepper plantse0
Treatment: half the concentration of nutrientse3
Outcome: total amount of fertilizere1
Direction: decreaseinferrede1
Value: 297 and 396 g per plante1
Comparator: complete nutrient solutione2

Verbatim

e0
“soilless-greenhouse-grown pepper plants were irrigated with five irrigation schedules”
✓ located verbatim in the source · abstract, characters 26–111

e1
“half the total amount of fertilizer (297 and 396 g per plant, respectively)”
✓ located verbatim in the source · abstract, characters 640–715

e2
“and water (214 and 282 L/plant, respectively) than those delivered with a complete nutrient solution”
✓ located verbatim in the source · abstract, characters 716–816

e3
“With half the concentration of nutrients and 74 mL per irrigation event at 12 and 16 events per day”
✓ located verbatim in the source · abstract, characters 491–590

Title

REDUCED FERTIGATION OF SOILLESS GREENHOUSE PEPPERS IMPROVES FRUIT YIELD AND QUALITY

E. Jovicich; D.J. Cantliffe; P.J. Stoffella; et al. Acta Horticulturae 2003. doi:10.17660/actahortic.2003.609.26

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The Double Cut Alternative tapping system does not alter the competition between trunk radial growth and rubber production.

Taxon: rubbere0
Treatment: DCA tapping systeme4
Outcome: competitive relationship between, trunk radial growth and rubber productione4
Direction: does not altere4
Comparator: ½ S d/2 7d/7e1

Verbatim

e0
“Continuous decrease of the size of Thai rubber smallholdings”
✓ located verbatim in the source · abstract, characters 0–60

e1
“A new tapping system ("Double Cut Alternative" or DCA, 2x ½ S d/4 (t,t) 7d/7) is studied in comparison with ½ S d/2 7d/7 control”
✓ located verbatim in the source · abstract, characters 533–661

e4
“The DCA tapping system does not alter the competitive relationship between, trunk radial growth and rubber production”
✓ located verbatim in the source · abstract, characters 1447–1564

Title

"Double cut alternative" tapping system (DCA) : Towards improvement of yield and labour productivity of Thailand rubber smallholdings

Éric Gohet; Pisamai Chantuma Agritrop (Cirad) 2003

Other claims from this paper (5)

Intervention effect The Double Cut Alternative tapping system significantly increased rubber production (+25-30%) compared with the conventional system.
Intervention effect The Double Cut Alternative tapping system increased latex sucrose and inorganic phosphorus.
Intervention effect The Double Cut Alternative tapping system reduced latex thiols.
Intervention effect The DCA system increased output per tapper compared with reduced tapping frequencies.
Recommendation The DCA tapping system appears very promising for small-size rubber holdings.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Selection decreased lodging by 3.5% per cycle at 80 kg N ha-1.

Taxon: maizeZea mayst0
Treatment: selectione1
Outcome: lodginge1
Direction: decreaseinferrede0
Value: -3.5%e0
Qualifier: 80 kg N ha-1e0

Not reportedComparator

Verbatim

t0
“maize”
✓ located verbatim in the source · title, characters 36–41

e0
“2.1, -0.8, -1.5, -3.5% at 80 kg N ha-1”
✓ located verbatim in the source · abstract, characters 1345–1383

e1
“Least square estimates of progress per cycle of selection for grain yield, days to mid-silk, plant height, and lodging were 1.6, -0.6, -1.5, -1.1% at zero fertilizer N; 2.1, -0.8, -1.5, -3.5% at 80 kg N ha-1 and 1.8, -0.7, -1.4, -2.8% at 160 kg N ha-1, respectively”
✓ located verbatim in the source · abstract, characters 1176–1441

Title

Progress from selection in la posta maize population evaluated underthree nitrogen fertilizer levels

TSpace 1998

Other claims from this paper (19)

Intervention effect Mean grain yield rose across the three nitrogen rates from 3.0 to 4.7 to 5.2 Mg ha-1.
Intervention effect As nitrogen increased, grain yield, plant height and lodging increased.
Intervention effect Ear rating increased with fertilizer nitrogen.
Intervention effect Days to mid-silk decreased with increasing fertilizer nitrogen.
Intervention effect Grain moisture and ears per plant did not change as fertilizer nitrogen increased.
Observation The greatest response to applied nitrogen across traits was at 80 kg N ha-1.
Observation Nitrogen response patterns were similar across selection cycles.
Intervention effect Selection increased grain yield per cycle by 1.6% without nitrogen fertilizer.
Intervention effect Selection advanced mid-silk by 0.6% per cycle without nitrogen fertilizer.
Intervention effect Selection reduced plant height by 1.5% per cycle without nitrogen fertilizer.
Intervention effect Selection reduced lodging by 1.1% per cycle without nitrogen fertilizer.
Intervention effect Selection increased grain yield by 2.1% per cycle at 80 kg N ha-1.
Intervention effect Selection decreased days to mid-silk by 0.8% per cycle at 80 kg N ha-1.
Intervention effect Selection decreased plant height by 1.5% per cycle at 80 kg N ha-1.
Intervention effect At 160 kg N ha-1, selection increased grain yield by 1.8% per cycle.
Intervention effect At 160 kg N ha-1, selection decreased days to mid-silk by 0.7% per cycle.
Intervention effect At 160 kg N ha-1, selection decreased plant height by 1.4% per cycle.
Intervention effect At 160 kg N ha-1, selection decreased lodging by 2.8% per cycle.
Observation Recurrent selection had little effect on the population’s nitrogen fertilizer response.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 160 kg N ha-1, selection decreased lodging by 2.8% per cycle.

Taxon: maizeZea mayst0
Treatment: selectione1
Outcome: lodginge1
Direction: decreaseinferrede0
Value: -2.8%e0
Qualifier: 160 kg N ha-1e0

Not reportedComparator

Verbatim

t0
“maize”
✓ located verbatim in the source · title, characters 36–41

e0
“1.8, -0.7, -1.4, -2.8% at 160 kg N ha-1”
✓ located verbatim in the source · abstract, characters 1388–1427

e1
“Least square estimates of progress per cycle of selection for grain yield, days to mid-silk, plant height, and lodging were 1.6, -0.6, -1.5, -1.1% at zero fertilizer N; 2.1, -0.8, -1.5, -3.5% at 80 kg N ha-1 and 1.8, -0.7, -1.4, -2.8% at 160 kg N ha-1, respectively”
✓ located verbatim in the source · abstract, characters 1176–1441

Title

Progress from selection in la posta maize population evaluated underthree nitrogen fertilizer levels

TSpace 1998

Other claims from this paper (19)

Intervention effect Mean grain yield rose across the three nitrogen rates from 3.0 to 4.7 to 5.2 Mg ha-1.
Intervention effect As nitrogen increased, grain yield, plant height and lodging increased.
Intervention effect Ear rating increased with fertilizer nitrogen.
Intervention effect Days to mid-silk decreased with increasing fertilizer nitrogen.
Intervention effect Grain moisture and ears per plant did not change as fertilizer nitrogen increased.
Observation The greatest response to applied nitrogen across traits was at 80 kg N ha-1.
Observation Nitrogen response patterns were similar across selection cycles.
Intervention effect Selection increased grain yield per cycle by 1.6% without nitrogen fertilizer.
Intervention effect Selection advanced mid-silk by 0.6% per cycle without nitrogen fertilizer.
Intervention effect Selection reduced plant height by 1.5% per cycle without nitrogen fertilizer.
Intervention effect Selection reduced lodging by 1.1% per cycle without nitrogen fertilizer.
Intervention effect Selection increased grain yield by 2.1% per cycle at 80 kg N ha-1.
Intervention effect Selection decreased days to mid-silk by 0.8% per cycle at 80 kg N ha-1.
Intervention effect Selection decreased plant height by 1.5% per cycle at 80 kg N ha-1.
Intervention effect Selection decreased lodging by 3.5% per cycle at 80 kg N ha-1.
Intervention effect At 160 kg N ha-1, selection increased grain yield by 1.8% per cycle.
Intervention effect At 160 kg N ha-1, selection decreased days to mid-silk by 0.7% per cycle.
Intervention effect At 160 kg N ha-1, selection decreased plant height by 1.4% per cycle.
Observation Recurrent selection had little effect on the population’s nitrogen fertilizer response.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Diminishing water supply increased activities of six antioxidant enzymes in strawberry leaves.

Taxon: strawberryFragaria ×ananassae0
Treatment: diminishing water supplye0
Outcome: glutathione reductase (GR), glutathione S-transferase (GST), catalase (CAT), peroxidase (POD), superoxide dismutase (SOD) and ascorbate peroxidase (APX)e0
Direction: increasinge0

Not reportedComparator

Verbatim

e0
“The diminishing water supply caused a gradual decrease in the plant growth, chlorophyll content and berry yield, accompanied by increasing activities of drought stress markers such as total phenolics content (TPC), trolox equivalent antioxidant capacity (TEAC), malondialdehyde (MDA) content, hydrogen peroxide (H 2 O 2 ), glutathione reductase (GR), glutathione S-transferase (GST), catalase (CAT), peroxidase (POD), su…” Show full quote
✓ located verbatim in the source · abstract, characters 347–851

Title

Role of inoculation with multi-trait rhizobacteria on strawberries under water deficit stress

Ümmügülsüm Erdogan; Ramazan Çakmakçi; Atafeh Varmazyari; et al. Zemdirbyste-Agriculture 2016. doi:10.13080/z-a.2016.103.009

Other claims from this paper (9)

Intervention effect Diminishing water supply decreased strawberry growth, chlorophyll content and berry yield.
Intervention effect Diminishing water supply increased strawberry leaf TPC and TEAC.
Intervention effect Diminishing water supply increased strawberry leaf MDA and hydrogen peroxide content.
Intervention effect Multi-trait bacteria increased strawberry plant growth and yield.
Intervention effect Multi-trait bacteria increased strawberry TPC and TEAC.
Intervention effect Multi-trait bacteria increased antioxidant enzyme activity in strawberry.
Intervention effect Multi-trait bacteria increased strawberry phytohormones GA, SA and IAA.
Intervention effect Multi-trait bacteria increased strawberry N, P, K, Ca, Fe, Mn, Zn and Cu contents.
Intervention effect Multi-trait bacteria decreased strawberry MDA and hydrogen peroxide content.

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“yield decrease”

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