Search claims · PlantClaims

Associationobservedoriginal resultmeasured

Claim · model-written summary

Dominance variance decreased after recurrent selection for all traits except grain yield.

Taxon: MaizeZea mayst0
Treatment: recurrent selectione0
Outcome: dominance variance componente0
Direction: decreasee0
Qualifier: Except for grain yielde0

Verbatim

e0
“Except for grain yield, all traits exhibited a decrease in estimates of the dominance variance component after recurrent selection”
✓ located verbatim in the source · abstract, characters 1340–1470

t0
“Maize”
✓ located verbatim in the source · title, characters 72–77

Title

Characterization of Interpopulation Genetic Variability in Three Hybrid Maize Populations

F. J. Betran; A. R. Hallauer Journal of Heredity 1996. doi:10.1093/oxfordjournals.jhered.a023006

Other claims from this paper (15)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Alternate-furrow irrigation reduced corn grain yield by 17 bu/acre in 1993.

Taxon: cornZea mays subsp. mayst0
Treatment: Alternate furrow irrigatione0
Outcome: grain yielde0
Direction: decreasee0
Value: 17 (1993) bu/acree0

Not reportedComparator

Verbatim

e0
“Alternate furrow irrigation led to a 22 (1991), 6 (1992), and 17 (1993) bu/acre decrease in grain yield.”
✓ located verbatim in the source · abstract, characters 2597–2701

t0
“Corn”
✓ located verbatim in the source · title, characters 0–4

Title

Corn Production Using Alternate Furrow Nitrogen Fertilization and Irrigation

S. G. Hefner; P. W. Tracy jpa 1995. doi:10.2134/jpa1995.0066

Other claims from this paper (9)

Intervention effect Every-furrow irrigation increased corn grain yield in each study year.
Intervention effect Alternate-furrow irrigation reduced corn grain yield by 22 bu/acre in 1991.
Intervention effect Alternate-furrow irrigation reduced corn grain yield by 6 bu/acre in 1992.
Intervention effect Alternate-furrow irrigation caused moisture stress during anthesis.
Intervention effect Alternate-furrow nitrogen placement yielded as much grain as every-furrow placement in 1991 and 1992.
Intervention effect Alternate-furrow nitrogen placement significantly increased grain yield by 8.4 bu/acre in 1993.
Intervention effect Every-furrow nitrogen placement enhanced early-season corn growth.
Recommendation The authors advise against alternate-furrow irrigation for corn in southeast Missouri.
Recommendation The authors recommend nitrogen fertilizer placement in alternate furrows for corn production.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 25 lb P/acre, flooded field grain yield was 32 bu/acre lower than nonflooded field yield.

Taxon: plantsViridiplantaee1
Treatment: flooded fielde0
Outcome: yielde0
Direction: decreasee0
Value: 32 bu/acree0
Comparator: nonflooded fielde0

Verbatim

e0
“32 bu/acre yield decrease in the flooded field, compared with the nonflooded field”
✓ located verbatim in the source · abstract, characters 7306–7388

e1
“plants with the lowest rate of 25 lb P/acre”
✓ located verbatim in the source · abstract, characters 7219–7262

Title

Post Flood Syndrome and Vesicular‐Arbuscular Mycorrhizal Fungi

J. R. Ellis jpa 1998. doi:10.2134/jpa1998.0200

Other claims from this paper (18)

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

Y/M selection substantially decreased grain moisture.

Taxon: maizeZea mayst0
Outcome: grain moisturee0
Direction: decreasee0
Comparator: Y/Me1

Not reportedValue

Verbatim

e0
“had a large decrease in grain moisture”
✓ located verbatim in the source · abstract, characters 1416–1454

e1
“The Y/M selection differential for yield was only 64% of that of yield”
✓ located verbatim in the source · abstract, characters 1340–1410

t0
“Selection Criteria for Grain Yield and Moisture in Maize Yield Trials”
✓ located verbatim in the source · title, characters 0–69

Title

Selection Criteria for Grain Yield and Moisture in Maize Yield Trials

J. T. Eta‐Ndu; S. J. Openshaw Crop Science 1992. doi:10.2135/cropsci1992.0011183x003200020010x

Other claims from this paper (12)

Association Grain yield and moisture were positively correlated.
Observation Yield means departed from normality in 18% of experiments.
Observation Moisture departed from normality in 32% of experiments.
Observation Regression of yield on moisture varied substantially, averaging 12.5 kg ha −1 yield per g kg −1 moisture.
Method / resource REG yield selection differential was 92% of direct selection.
Method / resource BSE yield selection differential was 91% of direct selection.
Method / resource DSG yield selection differential was 89% of direct selection.
Method / resource REG, BSE and DSG changed moisture less than selection on yield.
Method / resource Y/M yield selection differential was only 64% of direct selection.
Association Index success was not associated with nonnormality.
Recommendation The authors recommend BSE or REG to identify high-yielding hybrids within maturity groups.
Recommendation The authors advise evaluating selection indices against breeder circumstances and objectives.

Intervention effectobservedoriginal resultbasis n/a

Claim · model-written summary

Sugar beet yield decreases about 8% with a 4°C temperature increase.

Taxon: sugar beetBeta vulgaris subsp. vulgarise0
Treatment: 4°C increasee0
Outcome: yieldse0
Direction: decreasee0
Value: about 8%e0

Not reportedComparator

Verbatim

e0
“Wheat and rice yields decrease about 25% for a 4°C increase and sugar beet about 8%”
✓ located verbatim in the source · abstract, characters 1335–1418

Title

Response of Crops to Environmental Change Conditions

David W. Lawlor Journal of Agricultural Meteorology 1997. doi:10.2480/agrmet.52.769

Other claims from this paper (11)

Observation C3 plants respond positively to elevated CO2.
Observation C4 crops respond less to elevated CO2 than C3 plants.
Intervention effect Wheat yield increases approximately 25% with CO2 doubling.
Intervention effect Rice yield increases approximately 25% with CO2 doubling.
Intervention effect Root crops show larger yield increases under CO2 doubling.
Observation Increasing temperature probably decreases production of most crops except where cool conditions limit it.
Intervention effect Wheat yield decreases about 25% with a 4°C temperature increase.
Intervention effect Rice yield decreases about 25% with a 4°C temperature increase.
Association Acclimation is related to assimilate production and sink strength.
Observation Adequate water and nutrition are essential for increased production.
Observation Broad production gains under elevated CO2 may be modest and offset under resource limitation.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

A decrease in percentage budbreak reduced kiwifruit orchard efficiency.

Taxon: Actinidia deliciosaActinidia deliciosae0
Treatment: the percentage budbreake2
Outcome: orchard efficiencye2
Direction: a decreasee2

Verbatim

e0
“Kiwifruit [Actinidia deliciosa (A. Chev.) C.F. Liang et A.R. Ferguson] crop response”
✓ located verbatim in the source · abstract, characters 0–84

e2
“Both the reduction in the mean fruit mass as well as the percentage budbreak caused a decrease in orchard efficiency”
✓ located verbatim in the source · abstract, characters 661–777

Title

Kiwifruit Yield Efficiency, Plant Density, and Bud Number per Surface Unit

Raffaele Testolin Journal of the American Society for Horticultural Science 1990. doi:10.21273/jashs.115.5.704

Other claims from this paper (4)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen application tended to decrease soil pH, organic carbon, available phosphorus.

Treatment: N applicatione0
Outcome: soil pH, organic carbon, available phosphoruse0
Direction: decreasee0

Not reportedTaxonComparator

Verbatim

e0
“N application tended to decrease soil pH, organic carbon, available phosphorus and exchangeable calcium and magnesium cations and increased exchangeable aluminium”
✓ located verbatim in the source · abstract, characters 1030–1192

Title

Effect of nitrogen levels on yield, root biomass distribution, nitrogen recovery by forage grasses and changes in soil properties of acid Inceptisol

Kaushlendra Singh The Indian Journal of Agricultural Sciences 1999

Other claims from this paper (15)

Intervention effect Dallis grass had its highest dry matter at 150 kgN/ha.
Intervention effect 'BN 82048' hybrid pearlmillet had its highest dry matter at 150 kgN/ha.
Intervention effect para grass had its highest dry matter at 50 kg N/ha.
Association The nitrogen response declined as the grasses aged.
Intervention effect dry-matter produced produced /kg of N increased with increasing nitrogen level, subject to the stated para grass exception.
Intervention effect crude protein cOntein decreased with increasing nitrogen level, subject to the stated para grass exception.
Intervention effect N recovery decreased with increasing nitrogen level, subject to the stated para grass exception.
Intervention effect Root biomass was greatest at 50 kg N/ha.
Intervention effect Nitrogen application increased root distribution at 0-20 cm soil depth.
Intervention effect Nitrogen application decrease root distribution at 20--6O cm soil depth.
Observation Over five years, Soil pH, organic carbon, available phosphorus increased.
Observation Over five years, potassium increased.
Observation Over five years, exchangeable aluminium, calcium and magnesium cations decreased.
Intervention effect Nitrogen application tended to decrease exchangeable calcium and magnesium cations.
Intervention effect Nitrogen application tended to increased exchangeable aluminium.

Mechanismauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

The authors inferred that ozone induced lower stomatal conductance followed the decrease in light saturated assimilation.

Taxon: watermelonCitrullus lanatust0
Outcome: decline in g se0
Direction: declinee0
Qualifier: the result, and not the cause, of the decrease in A sate0

Verbatim

e0
“the decline in g s induced by the pollutant in both field and laboratory was the result, and not the cause, of the decrease in A sat”
✓ located verbatim in the source · abstract, characters 2588–2720

t0
“watermelon yield and physiology at a rural site in Eastern Spain”
✓ located verbatim in the source · title, characters 36–100

Title

Adverse effects of ambient ozone on watermelon yield and physiology at a rural site in Eastern Spain

BENJAMIN S. GIMENO; VICTORIA BERMEJO; RICHARD A. REINERT; et al. New Phytologist 1999. doi:10.1046/j.1469-8137.1999.00509.x

Other claims from this paper (16)

Associationobservedoriginal resultmeasured

Claim · model-written summary

The conversion of violaxanthin to antheraxanthin and zeaxanthin was correlated with a decrease in the quantum yield of photosystem II photochemistry in tobacco

Taxon: tobaccoNicotiana tabacume0
Compound: antheraxanthin and zeaxanthine4
Outcome: quantum yield of photosystem II photochemistrye4
Direction: decreasee4
Qualifier: correlatede4

Verbatim

e0
“Transgenic tobacco (Nicotiana tabacum), with a reduced chlorophyll content of up to less than 10% of the wild-type level due to a different expression of antisense RNA coding for glutamate 1-semialdehyde aminotransferase”
✓ located verbatim in the source · abstract, characters 0–220

e4
“Concurrently to the higher pool sizes a higher extent of violaxanthin was converted into antheraxanthin and zeaxanthin and this was found to be correlated with a decrease in the quantum yield of photosystem II photochemistry”
✓ located verbatim in the source · abstract, characters 894–1118

Title

Consequences of chlorophyll deficiency for leaf carotenoid composition in tobacco synthesizing glutamate 1-semialdehyde aminotransferase antisense RNA: dependency on developmental age and growth light

H Hartel Journal of Experimental Botany 1998. doi:10.1093/jexbot/49.320.535

Other claims from this paper (10)

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

At 100 mg Ni/kg soil and above, onion yield decreased significantly.

Taxon: onionAllium cepae0
Treatment: 100 mg Ni/kg soil and abovee1
Outcome: yielde1
Direction: decreasee1

Not reportedComparator

Verbatim

e0
“of onion and fenugreek”
✓ located verbatim in the source · title, characters 63–85

e1
“at 100 mg Ni/kg soil and above yield decrease was significant”
✓ located verbatim in the source · abstract, characters 508–569

Title

Effect of Cd, Ni, Pb and Zn on growth and chemical composition of onion and fenugreek

Y.P. Dang; R. Chhabra; K.S. Verma Communications in Soil Science and Plant Analysis 1990. doi:10.1080/00103629009368265

Other claims from this paper (19)

Intervention effect Cd at 50 mg/kg soil drastically reduced onion fresh and dry weight, with further decreases at higher levels.
Intervention effect Cd at 50 mg/kg soil drastically reduced fenugreek fresh and dry weight, with further decreases at higher levels.
Intervention effect Ni at 50 mg/kg soil slightly decreased onion yield, and 100 mg/kg or higher significantly decreased it.
Intervention effect Ni at 50 mg/kg soil slightly decreased fenugreek yield.
Intervention effect At 100 mg Ni/kg soil and above, fenugreek yield decreased significantly.
Intervention effect No onion growth occurred at 400 mg Ni/kg soil.
Intervention effect No fenugreek growth occurred at 400 mg Ni/kg soil.
Intervention effect Zn at 50 mg/kg soil slightly increased onion yield, while higher levels reduced yield.
Intervention effect Zn at 50 mg/kg soil slightly increased fenugreek yield.
Intervention effect Higher Zn levels reduced onion yield.
Intervention effect Higher Zn levels reduced fenugreek yield more than onion yield.
Association Onion bulb concentrations of applied elements increased linearly with dose.
Association Fenugreek root and leaf concentrations of applied elements increased linearly with dose.
Observation Zn uptake was highest, followed by Cd, Ni, then Pb.
Observation Roots accumulated more of the elements than leaves.
Observation Onion tissue Cd at ten percent yield reduction was 6 ppm.
Observation Fenugreek tissue Cd at ten percent yield reduction was 1.5 ppm.
Observation Overall phytotoxicity ranked Cd above Ni above Pb above Zn.
Association DTPA-extractable soil elements rose as applied-element levels rose after crop harvest.

“yield decrease”

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