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“dry weight decrease”

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plus 5 non-evaluative

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1950 ’60 ’70 ’80 ’90 2000 ’10 ’20

plus 8 earlier · 1900s–1940s

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1950s 18

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Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Adding coconut milk to Heller’s medium did not decrease leaf tissue culture dry weight percentage.

Taxon: SAFFLOWERCarthamus tinctoriust0
Treatment: addition to Heller's mediume0
Outcome: percentage of dry weight of the leaf tissue culturee1
Direction: no such effecte0

Not reportedComparator

Verbatim

e0
“whereas its addition to Heller's medium had no such effect”
✓ located verbatim in the source · abstract, characters 587–645

e1
“The addition of coconut milk to White's medium caused a decrease in percentage of dry weight of the leaf tissue culture”
✓ located verbatim in the source · abstract, characters 466–585

t0
“SAFFLOWER”
✓ located verbatim in the source · title, characters 0–9

Title

SAFFLOWER LEAF TISSUE CULTURES

Franziska L. M. Turel; Mary M. Howes Canadian Journal of Botany 1956. doi:10.1139/b56-064

Other claims from this paper (5)

Observation Leaf vein cells produced a tissue culture that was maintained through monthly transfers for two and one-half years.
Intervention effect Indole-3-acetic acid had no effect on leaf tissue growth.
Intervention effect Coconut milk greatly enhanced leaf tissue growth.
Intervention effect Heller’s medium plus coconut milk was best for leaf tissue growth.
Intervention effect Adding coconut milk to White’s medium decreased the percentage dry weight of the leaf tissue culture.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Adding coconut milk to White’s medium decreased the percentage dry weight of the leaf tissue culture.

Taxon: SAFFLOWERCarthamus tinctoriust0
Treatment: addition of coconut milk to White's mediume0
Outcome: percentage of dry weight of the leaf tissue culturee0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“The addition of coconut milk to White's medium caused a decrease in percentage of dry weight of the leaf tissue culture”
✓ located verbatim in the source · abstract, characters 466–585

t0
“SAFFLOWER”
✓ located verbatim in the source · title, characters 0–9

Title

SAFFLOWER LEAF TISSUE CULTURES

Franziska L. M. Turel; Mary M. Howes Canadian Journal of Botany 1956. doi:10.1139/b56-064

Other claims from this paper (5)

Observation Leaf vein cells produced a tissue culture that was maintained through monthly transfers for two and one-half years.
Intervention effect Indole-3-acetic acid had no effect on leaf tissue growth.
Intervention effect Coconut milk greatly enhanced leaf tissue growth.
Intervention effect Heller’s medium plus coconut milk was best for leaf tissue growth.
Intervention effect Adding coconut milk to Heller’s medium did not decrease leaf tissue culture dry weight percentage.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Virus infection decreased total dry weight mainly through tuber dry weight loss.

Taxon: potato plantsSolanum tuberosume0
Material: Craig's Defiancee0
Organ / stage: tuberse0
Treatment: infection with leaf‐roll viruse0
Interactor: leaf‐roll viruse0pathogen
Outcome: total dry weighte0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“decrease in total dry weight of potato plants (var. Craig's Defiance) caused by infection with leaf‐roll virus was almost entirely at the expense of the tubers”
✓ located verbatim in the source · abstract, characters 4–163

Title

AN ANALYSIS OF THE EFFECTS OF INFECTION WITH LEAF‐ROLL VIRUS ON THE GROWTH AND YIELD OF POTATO PLANTS, AND OF ITS INTERACTIONS WITH NUTRIENT SUPPLY AND SHADING

D. J. WATSON; J. H. WILSON Annals of Applied Biology 1956. doi:10.1111/j.1744-7348.1956.tb02134.x

Other claims from this paper (19)

Intervention effect Infection increased leaf and stem dry weight.
Intervention effect Infection slightly decreased root and stolon dry weight.
Intervention effect Nitrogenous fertilizer reduced virus-related tuber dry weight loss.
Intervention effect Phosphorus and potassium did not affect virus-related tuber loss.
Intervention effect Infection decreased net assimilation rate through early July.
Observation Infected plants had higher later net assimilation rate.
Intervention effect Infection decreased leaf area until early July.
Intervention effect Infection delayed leaf senescence and increased late leaf area.
Observation Mean infection-related net assimilation rate decrease was about 20%.
Observation Mean infection-related leaf area decrease was 4%.
Mechanism Older rolled leaves had diminished photosynthetic efficiency underlying lower net assimilation.
Observation Nutrient effects on net assimilation and interactions with infection were small and rarely significant.
Intervention effect Nitrogenous fertilizer increased leaf area throughout growth.
Intervention effect Phosphorus increased early leaf area.
Intervention effect Phosphorus hastened senescence and decreased August leaf area.
Intervention effect Potassium increased leaf area particularly later in growth.
Observation Infected plants had more leaves than healthy plants beyond early growth.
Intervention effect Shading decreased net assimilation rate and increased leaf area without affecting yield.
Observation Virus-related yield loss was smaller in Up-to-Date than Craig’s Defiance.

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“dry weight decrease”

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1950s 18