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“decrease in A”

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A 58% population decrease caused only a 12% soybean yield decrease.

Taxon: SoybeanGlycine maxe1
Treatment: 58% population decreasee0
Outcome: yielde0
Direction: decreasee0
Value: 12%e0
Comparator: 164 000 plants ha −le0

Verbatim

e0
“A 58% population decrease from 164 000 plants ha −l resulted in a yield decrease of only 12%”
✓ located verbatim in the source · abstract, characters 880–972

e1
“Soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 0–33

Title

Branch Yield Components Controlling Soybean Yield Stability across Plant Populations

A. C. Carpenter; J. E. Board Crop Science 1997. doi:10.2135/cropsci1997.0011183x003700030031x

Other claims from this paper (8)

Intervention effect A 43% population increase produced no significant soybean yield change.
Observation Branch dry matter averaged 14.0 g per plant at low population.
Observation Branch dry matter averaged 5.3 g per plant at medium population.
Observation Branch dry matter averaged 3.6 g per plant at high population.
Association Greater branch dry matter yielded more branch nodes, reproductive nodes and pods.
Association Pods per reproductive branch node affected yield in some cases.
Association Branch dry matter correlated strongly with yield at r squared 0.95.
Method / resource Branch dry matter was useful for identifying cultivars with low optimal population.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The decrease in LAR was attributed to a decrease in specific leaf area.

Taxon: soybeanGlycine maxe0
Outcome: decrease in LARe1
Qualifier: a decrease in specific leaf areae1

Verbatim

e0
“Growth response of soybean”
✓ located verbatim in the source · abstract, characters 9–35

e1
“The decrease in LAR was attributed to a decrease in specific leaf area”
✓ located verbatim in the source · abstract, characters 1684–1754

Title

Soybean growth response to water supply and atmospheric carbon dioxide enrichment

Stephen A. Prior; Hugo H. Rogers Journal of Plant Nutrition 1995. doi:10.1080/01904169509364927

Other claims from this paper (17)

Intervention effect CO2 enrichment increased total leaf area and dry weight during reproductive growth.
Intervention effect Water stress inhibited soybean growth at all CO2 levels.
Intervention effect The relative enhancement of growth by CO2 enrichment was greater under water-stressed conditions than under well-watered conditions.
Intervention effect Water-stressed plants grown under 946 CO2 were larger than well-watered plants grown under 349 CO2.
Intervention effect Reproductive yield increases under elevated CO2 came from increased seed number.
Intervention effect Reproductive yield increases under elevated CO2 did not come from larger seeds.
Intervention effect Water stress reduced soybean yield.
Intervention effect The relative increase in seed number under elevated CO2 was greater for water-stressed plants.
Mechanism A phosphorus deficiency may have restricted the seed dry weight response to elevated CO2.
Intervention effect Mean relative growth rate and mean net assimilation rate increased with CO2 concentration in the first interval (5 to 14 days after planting).
Intervention effect The increase of mean RGR and mean NAR with CO2 diminished with time after the first interval.
Mechanism The direct effect of NAR on growth at the second interval was offset by lower leaf area ratio.
Intervention effect Leaf area ratio was greater for water-stressed plants.
Intervention effect The response of RGR to CO2 was similar under both water treatments.
Intervention effect The RGR of water-stressed plants remained constant across CO2 treatments in the third interval.
Intervention effect Under well-watered conditions, RGR decreased under CO2-enriched conditions in the third interval.
Intervention effect Leaf weight ratio was unaffected by CO2.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The decrease in the load parameter L is primarily due to a disproportionate decrease in flexural rigidity EI.

Taxon: Psilotum nudumPsilotum nudumt0
Outcome: decrease in Le3
Qualifier: a disproportionate decrease in EIe3

Verbatim

t0
“Biomechanics of Psilotum nudum”
✓ located verbatim in the source · title, characters 0–30

e3
“However, the decrease in L is primarily due to a disproportionate decrease in EI”
✓ located verbatim in the source · abstract, characters 945–1025

Title

Biomechanics of Psilotum nudum and Some Early Paleozoic Vascular Sporophytes

Karl J. Niklas American Journal of Botany 1990. doi:10.2307/2444807

Other claims from this paper (7)

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1990s 6129