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“yield decrease”

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paper W2053185367 ✕

2000s 13

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Associationauthor interpretationoriginal resultnegativeprojected

Claim · model-written summary

Seed yield of peanut is projected to decrease under future warmer climates.

Taxon: peanutArachis hypogaeae6
Treatment: future warmer climatese6
Outcome: seed yielde6
Direction: decreasee6

Verbatim

e6
“We conclude that there are no beneficial interactions between elevated CO 2 and temperature, and that seed yield of peanut will decrease under future warmer climates, particularly in regions where present temperatures are near or above optimum”
✓ located verbatim in the source · abstract, characters 1502–1745

Title

Super‐optimal temperatures are detrimental to peanut (Arachis hypogaea L.) reproductive processes and yield at both ambient and elevated carbon dioxide

P. V. Vara Prasad; Kenneth J. Boote; L. Hartwell Allen; et al. Global Change Biology 2003. doi:10.1046/j.1365-2486.2003.00708.x

Other claims from this paper (12)

Intervention effect Doubling CO2 increased leaf photosynthesis of peanut relative to ambient CO2.
Intervention effect Doubling CO2 increased seed yield of peanut relative to ambient CO2.
Intervention effect Elevated CO2 had no effect on pollen viability, seed-set or seed number per pod of peanut.
Intervention effect Elevated CO2 had no effect on seed size, harvest index or shelling percentage of peanut.
Intervention effect At ambient CO2, seed yield of peanut decreased by 14% as temperature rose from 32/22 to 36/26°C.
Intervention effect At ambient CO2, seed yield of peanut decreased by 59% as temperature rose from 32/22 to 40/30°C.
Intervention effect At ambient CO2, seed yield of peanut decreased by 90% as temperature rose from 32/22 to 44/34°C.
Intervention effect Seed yield of peanut decreased by similar percentages at temperatures above 32/22 under elevated CO2, despite greater photosynthesis and vegetative growth.
Mechanism Decreased seed yield of peanut at high temperature resulted from lower seed-set due to poor pollen viability.
Mechanism Smaller seed size of peanut at high temperature resulted from decreased seed growth rates and decreased shelling percentages.
Intervention effect Seed harvest index of peanut decreased from 0.41 to 0.05 as temperature increased from 32/22 to 44/34°C under both ambient and elevated CO2.
Association There are no beneficial interactions between elevated CO2 and temperature for peanut seed yield.

Associationauthor interpretationoriginal resultno effectbasis n/a

Claim · model-written summary

There are no beneficial interactions between elevated CO2 and temperature for peanut seed yield.

Taxon: peanutArachis hypogaeae6
Treatment: elevated CO 2 and temperaturee6
Outcome: seed yielde6
Direction: no_changeinferrede6

Verbatim

e6
“We conclude that there are no beneficial interactions between elevated CO 2 and temperature, and that seed yield of peanut will decrease under future warmer climates, particularly in regions where present temperatures are near or above optimum”
✓ located verbatim in the source · abstract, characters 1502–1745

Title

Super‐optimal temperatures are detrimental to peanut (Arachis hypogaea L.) reproductive processes and yield at both ambient and elevated carbon dioxide

P. V. Vara Prasad; Kenneth J. Boote; L. Hartwell Allen; et al. Global Change Biology 2003. doi:10.1046/j.1365-2486.2003.00708.x

Other claims from this paper (12)

Intervention effect Doubling CO2 increased leaf photosynthesis of peanut relative to ambient CO2.
Intervention effect Doubling CO2 increased seed yield of peanut relative to ambient CO2.
Intervention effect Elevated CO2 had no effect on pollen viability, seed-set or seed number per pod of peanut.
Intervention effect Elevated CO2 had no effect on seed size, harvest index or shelling percentage of peanut.
Intervention effect At ambient CO2, seed yield of peanut decreased by 14% as temperature rose from 32/22 to 36/26°C.
Intervention effect At ambient CO2, seed yield of peanut decreased by 59% as temperature rose from 32/22 to 40/30°C.
Intervention effect At ambient CO2, seed yield of peanut decreased by 90% as temperature rose from 32/22 to 44/34°C.
Intervention effect Seed yield of peanut decreased by similar percentages at temperatures above 32/22 under elevated CO2, despite greater photosynthesis and vegetative growth.
Mechanism Decreased seed yield of peanut at high temperature resulted from lower seed-set due to poor pollen viability.
Mechanism Smaller seed size of peanut at high temperature resulted from decreased seed growth rates and decreased shelling percentages.
Intervention effect Seed harvest index of peanut decreased from 0.41 to 0.05 as temperature increased from 32/22 to 44/34°C under both ambient and elevated CO2.
Association Seed yield of peanut is projected to decrease under future warmer climates.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At ambient CO2, seed yield of peanut decreased by 14% as temperature rose from 32/22 to 36/26°C.

Taxon: peanutArachis hypogaeae6
Treatment: 36/26e2
Outcome: seed yielde2
Direction: decreasede2
Value: 14%e2
Qualifier: At ambient CO 2e2
Comparator: 32/22e2

Verbatim

e2
“At ambient CO 2 , seed yield decreased progressively by 14%, 59% and 90% as temperature increased from 32/22 to 36/26, 40/30 and 44/34°C, respectively”
✓ located verbatim in the source · abstract, characters 867–1017

e6
“We conclude that there are no beneficial interactions between elevated CO 2 and temperature, and that seed yield of peanut will decrease under future warmer climates, particularly in regions where present temperatures are near or above optimum”
✓ located verbatim in the source · abstract, characters 1502–1745

Title

Super‐optimal temperatures are detrimental to peanut (Arachis hypogaea L.) reproductive processes and yield at both ambient and elevated carbon dioxide

P. V. Vara Prasad; Kenneth J. Boote; L. Hartwell Allen; et al. Global Change Biology 2003. doi:10.1046/j.1365-2486.2003.00708.x

Other claims from this paper (12)

Intervention effect Doubling CO2 increased leaf photosynthesis of peanut relative to ambient CO2.
Intervention effect Doubling CO2 increased seed yield of peanut relative to ambient CO2.
Intervention effect Elevated CO2 had no effect on pollen viability, seed-set or seed number per pod of peanut.
Intervention effect Elevated CO2 had no effect on seed size, harvest index or shelling percentage of peanut.
Intervention effect At ambient CO2, seed yield of peanut decreased by 59% as temperature rose from 32/22 to 40/30°C.
Intervention effect At ambient CO2, seed yield of peanut decreased by 90% as temperature rose from 32/22 to 44/34°C.
Intervention effect Seed yield of peanut decreased by similar percentages at temperatures above 32/22 under elevated CO2, despite greater photosynthesis and vegetative growth.
Mechanism Decreased seed yield of peanut at high temperature resulted from lower seed-set due to poor pollen viability.
Mechanism Smaller seed size of peanut at high temperature resulted from decreased seed growth rates and decreased shelling percentages.
Intervention effect Seed harvest index of peanut decreased from 0.41 to 0.05 as temperature increased from 32/22 to 44/34°C under both ambient and elevated CO2.
Association There are no beneficial interactions between elevated CO2 and temperature for peanut seed yield.
Association Seed yield of peanut is projected to decrease under future warmer climates.

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“yield decrease”

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2000s 13