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“dry weight decrease”

238 matches

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plus 90 non-evaluative

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plus 8 earlier · 1900s–1940s

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Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.

Taxon: lettuceLactuca sativae0
Organ / stage: leavese0
Treatment: Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3)e0
Outcome: freshe0
Direction: stimulatede0
Value: 39% to 75%e0
Qualifier: moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1e0
Comparator: plants at 16 mmol m-3 CO2 (350 mm3 dm-3)e0

Verbatim

e0
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e1
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Observation Relative growth rate increased only in the first days of exponential growth.
Intervention effect CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.
Intervention effect High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.
Intervention effect High PPF increased photosynthetic rate at enriched CO2.
Intervention effect High PPF decreased leaf area ratio.
Intervention effect At high PPF, supraoptimal CO2 increased leaf area and LAR.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.

Taxon: lettuceLactuca sativae2
Treatment: high PPF of 880-900 micromoles m-2 s-1e0
Outcome: growth, RGR, net assimilation rate (NAR)e0
Direction: increasese0
Qualifier: at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2e0

Not reportedComparator

Verbatim

e0
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e1
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.
Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Observation Relative growth rate increased only in the first days of exponential growth.
Intervention effect CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.
Intervention effect High PPF increased photosynthetic rate at enriched CO2.
Intervention effect High PPF decreased leaf area ratio.
Intervention effect At high PPF, supraoptimal CO2 increased leaf area and LAR.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The P-700 content was reduced in damaged spruce trees compared with control trees, about 50%.

Taxon: spruce (Picea abies)Picea abiese0
Organ / stage: spruce needlese0
Treatment: damaged treese2
Outcome: P-700e3
Direction: reducede3
Value: 50%e3
Comparator: control treese3
Setting: Hunsriick mountainse1

Verbatim

e0
“In order to obtain an insight into the damage of thylakoid membranes of spruce (Picea abies) trees with damage of varying intensity, investigations were performed on the content of Q в -protein, cytochrome f, and P-700 in chloroplasts of spruce needles from apparently healthy and from damaged trees”
✓ located verbatim in the source · abstract, characters 0–299

e1
“The investigations were carried out in 1986 on a 20 to 25-year-old spruce plantation in the Hunsriick mountains and on an 80-year-old spruce plantation in the Westerwald mountains”
✓ located verbatim in the source · abstract, characters 382–561

e2
“In damaged trees an unequivocal decrease in the content of Q в -protein, cytochrome f, and P-700 was found, even in needle groups that appear visibly green and healthy”
✓ located verbatim in the source · abstract, characters 563–730

e3
“The amount of cytochrome f decreased by 25% per dry weight (approximately to the same extent as chlorophyll); the content of Q в -protein and P-700, however, were more drastically reduced compared to the control trees (about 40% and 50%, respectively)”
✓ located verbatim in the source · abstract, characters 732–983

Title

Investigation on the Photosynthetic Membranes of Spruce Needles in Relation to the Occurrence of Novel Forest Decline II. The Content of QB-Protein, Cytochrome f, and P-700

Aloysius Wild; Ute Flammersfeld; Iris Moors; et al. Zeitschrift für Naturforschung C 1988. doi:10.1515/znc-1988-7-817

Other claims from this paper (3)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.

Taxon: lettuceLactuca sativae2
Treatment: Elevating CO2 above 46 mmol m-3e0
Outcome: benefite0
Direction: no further benefite0

Not reportedComparator

Verbatim

e0
“Elevating CO2 above 46 mmol m-3 at moderate PPF had no further benefit.”
✓ located verbatim in the source · abstract, characters 342–413

e1
“Elevating CO2 above 46 mmol m-3 at moderate PPF had no further benefit.”
✓ located verbatim in the source · abstract, characters 342–413

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.
Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Observation Relative growth rate increased only in the first days of exponential growth.
Intervention effect High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.
Intervention effect High PPF increased photosynthetic rate at enriched CO2.
Intervention effect High PPF decreased leaf area ratio.
Intervention effect At high PPF, supraoptimal CO2 increased leaf area and LAR.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Relative growth rate increased only in the first days of exponential growth.

Taxon: lettuceLactuca sativae2
Outcome: Relative growth rate (RGR)e0
Direction: stimulatede0
Qualifier: only during the first several days of exponential growthe0

Verbatim

e0
“Relative growth rate (RGR) was stimulated only during the first several days of exponential growth.”
✓ located verbatim in the source · abstract, characters 242–341

e1
“Relative growth rate (RGR) was stimulated only during the first several days of exponential growth.”
✓ located verbatim in the source · abstract, characters 242–341

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.
Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Intervention effect CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.
Intervention effect High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.
Intervention effect High PPF increased photosynthetic rate at enriched CO2.
Intervention effect High PPF decreased leaf area ratio.
Intervention effect At high PPF, supraoptimal CO2 increased leaf area and LAR.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The Q в -protein content was reduced in damaged spruce trees compared with control trees, about 40%.

Taxon: spruce (Picea abies)Picea abiese0
Organ / stage: spruce needlese0
Treatment: damaged treese2
Outcome: content of Q в -proteine3
Direction: reducede3
Value: about 40%e3
Qualifier: even in needle groups that appear visibly green and healthye2
Comparator: control treese3
Setting: Hunsriick mountainse1

Verbatim

e0
“In order to obtain an insight into the damage of thylakoid membranes of spruce (Picea abies) trees with damage of varying intensity, investigations were performed on the content of Q в -protein, cytochrome f, and P-700 in chloroplasts of spruce needles from apparently healthy and from damaged trees”
✓ located verbatim in the source · abstract, characters 0–299

e1
“The investigations were carried out in 1986 on a 20 to 25-year-old spruce plantation in the Hunsriick mountains and on an 80-year-old spruce plantation in the Westerwald mountains”
✓ located verbatim in the source · abstract, characters 382–561

e2
“In damaged trees an unequivocal decrease in the content of Q в -protein, cytochrome f, and P-700 was found, even in needle groups that appear visibly green and healthy”
✓ located verbatim in the source · abstract, characters 563–730

e3
“The amount of cytochrome f decreased by 25% per dry weight (approximately to the same extent as chlorophyll); the content of Q в -protein and P-700, however, were more drastically reduced compared to the control trees (about 40% and 50%, respectively)”
✓ located verbatim in the source · abstract, characters 732–983

Title

Investigation on the Photosynthetic Membranes of Spruce Needles in Relation to the Occurrence of Novel Forest Decline II. The Content of QB-Protein, Cytochrome f, and P-700

Aloysius Wild; Ute Flammersfeld; Iris Moors; et al. Zeitschrift für Naturforschung C 1988. doi:10.1515/znc-1988-7-817

Other claims from this paper (3)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High PPF increased photosynthetic rate at enriched CO2.

Taxon: lettuceLactuca sativae2
Treatment: high PPF of 880-900 micromoles m-2 s-1e0
Outcome: photosynthetic rate (Pn)e0
Direction: increasese0

Not reportedComparator

Verbatim

e0
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn)”
✓ located verbatim in the source · abstract, characters 423–570

e1
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn)”
✓ located verbatim in the source · abstract, characters 423–570

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.
Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Observation Relative growth rate increased only in the first days of exponential growth.
Intervention effect CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.
Intervention effect High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.
Intervention effect High PPF decreased leaf area ratio.
Intervention effect At high PPF, supraoptimal CO2 increased leaf area and LAR.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

At high PPF, supraoptimal CO2 increased leaf area and LAR.

Taxon: lettuceLactuca sativae2
Treatment: Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3)e0
Outcome: leaf area and LARe0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

e1
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

t0
“Effects of CO2and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green”
✓ located verbatim in the source · title, characters 0–120

e2
“Enrichment of CO2 to 46 mmol m-3 (1000 mm3 dm-3) at a moderate photosynthetic photon flux (PPF) of 450 micromoles m-2 s-1 stimulated fresh and dry weight gain of lettuce leaves 39% to 75% relative to plants at 16 mmol m-3 CO2 (350 mm3 dm-3).”
✓ located verbatim in the source · abstract, characters 0–241

e3
“high PPF of 880-900 micromoles m-2 s-1 gave further, substantial increases in growth, RGR, net assimilation rate (NAR) and photosynthetic rate (Pn), but a decrease in leaf area ratio (LAR), at 46 or 69 mmol m-3 (1000 or 1500 mm3 dm-3) CO2”
✓ located verbatim in the source · abstract, characters 423–661

e4
“Enrichment of CO2 to a supraoptimal level of 92 mmol m-3 (2000 mm3 dm-3) at high PPF increased leaf area and LAR”
✓ located verbatim in the source · abstract, characters 718–830

Title

Effects of CO₂and Photosynthetic Photon Flux on Yield, Gas Exchange and Growth Rate ofLactuca SativaL. ‘Waldmann’s Green'

SHARON L. KNIGHT; CARY A. MITCHELL Journal of Experimental Botany 1988. doi:10.1093/jxb/39.3.317

Other claims from this paper (9)

Intervention effect CO2 enrichment increased lettuce leaf fresh weight gain by 39–75% at moderate PPF.
Intervention effect CO2 enrichment increased lettuce leaf dry weight gain by 39–75% at moderate PPF.
Observation Relative growth rate increased only in the first days of exponential growth.
Intervention effect CO2 above 46 mmol m−3 gave no further growth benefit at moderate PPF.
Intervention effect High PPF increased growth, RGR and NAR at 46 or 69 mmol m−3 CO2.
Intervention effect High PPF increased photosynthetic rate at enriched CO2.
Intervention effect High PPF decreased leaf area ratio.
Intervention effect Supraoptimal CO2 decreased specific leaf weight, NAR and Pn.
Intervention effect Supraoptimal CO2 had no effect on organ dry weights or RGR compared with 69 mmol m−3 CO2.

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“dry weight decrease”

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