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“yield decrease”

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Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Goodness of fit of relative yield decrease with mean CWSI was r 2 = 0.78 for the combined plantings.

Taxon: Spring WheatTriticum aestivumt0
Outcome: relative Y decrease with mean CWSIe5
Value: r 2 = 0.78e5

Verbatim

t0
“Spring Wheat”
✓ located verbatim in the source · title, characters 43–55

e5
“for relative Y decrease with mean CWSI, r 2 = 0.78”
✓ located verbatim in the source · abstract, characters 1417–1467

Title

Evapotranspiration and Yield Estimation of Spring Wheat from Canopy Temperature¹

R. A. Diaz; A. D. Matthias; R. J. Hanks Agronomy Journal 1983. doi:10.2134/agronj1983.00021962007500050018x

Other claims from this paper (8)

Method / resource Goodness of fit of ET versus the temperature-stress-day index was large (r 2 at least 0.93).
Method / resource Goodness of fit of ET versus the stress-degree-day index was large (r 2 at least 0.86).
Method / resource Large r 2 values were obtained for yield versus the temperature-stress-day and stress-degree-day indices.
Method / resource For combined data from all plantings, r 2 for ET versus the stress-degree-day index was 0.90.
Method / resource For combined data from all plantings, r 2 for yield versus the temperature-stress-day index was 0.21.
Observation Slopes and intercepts of the individual regression lines were significantly different.
Method / resource Goodness of fit of relative ET deficit with mean CWSI was r 2 = 0.86 for the combined plantings.
Recommendation The authors recommend the stress-degree-day index as most suitable for wheat yield assessment and water management in northern Utah.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

NaN03-soluble soil nickel better predicted lettuce yield decrease than total or CaCl2-soluble soil nickel.

Taxon: lettuceLactuca sativae0
Treatment: NaN03‐soluble soil Nie0
Outcome: decrease in yielde0
Direction: better suitede0
Qualifier: irrespective of soil typee0
Comparator: total soil Ni (Added+ Native) and CaCl2 soluble soil Nie0

Verbatim

e0
“NaN03‐soluble soil Ni, irrespective of soil type, is better suited to predict the decrease in yield and increase in Ni‐concentration of lettuce leaves as compared to total soil Ni (Added+ Native) and CaCl2 soluble soil Ni.”
✓ located verbatim in the source · abstract, characters 489–711

Title

The effect of graded doses of nickel on the yield, the nickel content of lettuce and the soil respiration

S.K. Gupta; H. Hani; E. Santschi; et al. Toxicological & Environmental Chemistry Reviews 1987. doi:10.1080/02772248709357189

Other claims from this paper (4)

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

The variability response index quantitatively expressed yield decline from soil potassium variability.

Outcome: Decrease in yield due to spatial variability of soil Ke0
Direction: Decreasee0
Comparator: relatively uniform distribution of soil Ke0

Not reportedTaxon

Verbatim

e0
“Decrease in yield due to spatial variability of soil K was quantitatively expressed by the variability response index (VRI), i.e., the product of the variance of soil K and the second derivative of yield with respect to exchangeable K obtained under a relatively uniform distribution of soil K”
✓ located verbatim in the source · abstract, characters 509–802

Title

CORN RESPONSE TO SPATIAL VARIABILITY OF RESIDUAL POTASSIUM

J. P. NDIAYE; R. S. YOST Soil Science 1989. doi:10.1097/00010694-198907000-00001

Other claims from this paper (4)

Method / resourceobservedoriginal resultmeasured

Claim · model-written summary

Regression analyses described the ozone and yield relationship.

Taxon: cottonGossypium hirsutume2
Outcome: models describing this relationshipe0

Not reportedComparator

Verbatim

e0
“regression analyses provided models describing this relationship”
✓ located verbatim in the source · abstract, characters 1007–1071

e1
“Stoneville 213 was sensitive to O 3 ‐induced yield decrease”
✓ located verbatim in the source · abstract, characters 943–1002

e2
“cotton ( Gossypium hirsutum L.)”
✓ located verbatim in the source · abstract, characters 368–399

Title

Injury and Yield Response of Cotton to Chronic Doses of Ozone and Sulfur Dioxide

Allen S. Heagle; W. W. Heck; V. M. Lesser; et al. Journal of Environmental Quality 1986. doi:10.2134/jeq1986.00472425001500040011x

Other claims from this paper (4)

Intervention effect Stoneville 213 yield decreased under ozone exposure.
Intervention effect Cotton yield was 11% lower at 1982 Raleigh ozone levels than in filtered air chambers.
Intervention effect Sulfur dioxide doses above regional levels had no significant effect on cotton.
Intervention effect Sulfur dioxide did not significantly alter cotton response to ozone.

Method / resourceobservedoriginal resultpositivemeasured

Claim · model-written summary

NaN03-soluble soil nickel better predicted increases in lettuce leaf nickel concentration than total or CaCl2-soluble soil nickel.

Taxon: lettuceLactuca sativae0
Treatment: NaN03‐soluble soil Nie0
Outcome: increase in Ni‐concentration of lettuce leavese0
Direction: better suitede0
Qualifier: irrespective of soil typee0
Comparator: total soil Ni (Added+ Native) and CaCl2 soluble soil Nie0

Verbatim

e0
“NaN03‐soluble soil Ni, irrespective of soil type, is better suited to predict the decrease in yield and increase in Ni‐concentration of lettuce leaves as compared to total soil Ni (Added+ Native) and CaCl2 soluble soil Ni.”
✓ located verbatim in the source · abstract, characters 489–711

Title

The effect of graded doses of nickel on the yield, the nickel content of lettuce and the soil respiration

S.K. Gupta; H. Hani; E. Santschi; et al. Toxicological & Environmental Chemistry Reviews 1987. doi:10.1080/02772248709357189

Other claims from this paper (4)

Association Lettuce nickel uptake percentage was lower in neutral to alkaline soils than acid sandy soils.
Method / resource NaN03-soluble soil nickel better predicted lettuce yield decrease than total or CaCl2-soluble soil nickel.
Intervention effect Carbon mineralisation fell to 20% at 90 mg total soil nickel per kg dry acid sandy loam soil.
Observation The nickel no-effect level was 27 mg total soil nickel per kg dry soil.

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