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“decrease in dry weight”

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1950 ’60 ’70 ’80 ’90 2000 ’10 ’20

plus 5 earlier · 1920s–1940s

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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.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium deficiency considerably decreased photosynthesis per unit dry weight.

Taxon: Chrysanthemum coronarium var. spatiosumGlebionis coronariat0
Treatment: Calcium deficiencye7
Outcome: photosynthesis per unit dry weighte7
Direction: decreasee7

Not reportedComparator

Verbatim

t0
“Chrysanthemum coronarium var. spatiosum”
✓ located verbatim in the source · title, characters 92–131

e7
“Calcium deficiency seems to give no such effect on photosynthesis per unit leaf area, but brings about a considerable decrease of photosynthesis per unit dry weight”
✓ located verbatim in the source · abstract, characters 776–940

Title

The Effects of Phosphorus and Calcium Deficiency on the Growth and Dry Matter Production in Chrysanthemum coronarium var. spatiosum in Water Culture

Yasuhiko TEZUKA Shokubutsugaku Zasshi 1959. doi:10.15281/jplantres1887.72.101

Other claims from this paper (8)

Intervention effect Phosphorus deficiency increased chlorophyll content in leaves, causing dark greening.
Intervention effect Calcium deficiency caused necrosis of apical buds.
Intervention effect Calcium deficiency retarded the development of each leaf.
Intervention effect Phosphorus deficiency markedly reduced photosynthetic activity per unit leaf area.
Intervention effect Phosphorus deficiency decreased respiratory activity of each organ.
Intervention effect Calcium deficiency had no such effect on photosynthesis per unit leaf area.
Mechanism The decrease in growth caused by phosphorus deficiency is explained by dry matter production.
Observation Phosphate and calcium ion effects on plant growth depend on the whole amount available to the plant rather than on concentration.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The acid decreased final dry weight of seeds produced by 22%.

Taxon: snap-beane0
Treatment: Application of the acide4
Outcome: final dry weight of seeds producede4
Direction: decreasee4
Value: 22%e4

Not reportedComparator

Verbatim

e0
“4-Chlorophenoxyacetic acid (4-Cl) was applied as a spray or a dip treatment to attached snap-bean fruits”
✓ located verbatim in the source · abstract, characters 3–107

e4
“Application of the acid brought about a decrease of 22% in final dry weight of seeds produced”
✓ located verbatim in the source · abstract, characters 586–679

Title

Effect of Growth-Regulating Substances on the Water-Retaining Capacity of Bean Plants

John W. Mitchell; Paul C. Marth Botanical Gazette 1950. doi:10.1086/335627

Other claims from this paper (15)

Intervention effect One thousand ppm 4-Cl retarded maturation of attached snap-bean fruits.
Intervention effect Fresh weight of treated snap-bean fruits was 11.2% greater than untreated fruit when harvested 1 week after treatment.
Intervention effect Fresh weight of treated snap-bean fruits was 10.1% greater than untreated fruit when harvested 2 weeks after treatment.
Intervention effect Fresh weight of treated snap-bean fruits was 11.4% greater than untreated fruit when harvested 3 weeks after treatment.
Intervention effect Treated snap-bean fruits contained 2.3% more moisture than untreated fruit when harvested 1 week after treatment.
Intervention effect Treated snap-bean fruits contained 8.7% more moisture than untreated fruit when harvested 2 weeks after treatment.
Intervention effect Treated snap-bean fruits contained 14.0% more moisture than untreated fruit when harvested 3 weeks after treatment.
Intervention effect Treated snap-bean pods were 14% heavier in dry weight than untreated pods at maturity.
Intervention effect Sprays of 4-Cl at 250 to 1000 p.p.m. reduced the final yield of fresh snap-bean fruit.
Intervention effect The most concentrated spray (1000 p.p.m. 4-Cl) reduced the final yield of fresh snap-bean fruit by 44%.
Intervention effect A 50 p.p.m. spray did not significantly reduce snap-bean yield under the conditions used.
Intervention effect Sprays of 4-Cl at 50 to 1000 p.p.m. increased the water-retaining capacity of snap-bean fruit when harvested and stored.
Intervention effect The acid retarded the rate of colour change in harvested and stored snap-bean fruit.
Intervention effect Applying 4-Cl in a wax emulsion was more effective than an equal concentration in aqueous spray in retarding moisture evaporation from harvested snap-bean fruit.
Intervention effect Fruit sprayed with the wax-growth-regulator mixture lost about 25% less moisture than unsprayed fruit during the first week of storage.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low water temperature decreased dry weight of the top less in Rikuu-132 than in kamenoo.

Taxon: rice plantOryza sativae0
Material: Rikuu-132e3
Treatment: low water temperaturee3
Outcome: dry weight of the tope3
Direction: Decreasee3
Comparator: kamenooe3

Verbatim

e0
“the nutrition and metabolism of the rice plant”
✓ located verbatim in the source · abstract, characters 64–110

e3
“Decrease in dry weight of the top and reduction in the absorption of nutrients and water due to low water temperature were less remarkable with Rikuu-132, a variety resistant to cool-weather, than with kamenoo, one susceptible to cool-weather”
✓ located verbatim in the source · abstract, characters 774–1016

Title

Nutrrients absorption by rice varieties and nitrogen-and carbohydrate-metabolism in the plant as affected by water temperature

I. BABA; Y. TAKAHASHI; I. IWATA Journal of Agricultural Meteorology 1955. doi:10.2480/agrmet.11.61

Other claims from this paper (11)

Intervention effect Water temperature higher or lower than optimum reduced nutrient absorption.
Intervention effect Low temperature reduced water absorption.
Intervention effect Low temperature decreased the moisture content of the top.
Intervention effect Low water temperature reduced nutrient and water absorption less in Rikuu-132 than in kamenoo.
Intervention effect Water temperature higher or lower than optimum increased the percentage content of NH3-N, amide-N and soluble-N.
Intervention effect Water temperature higher or lower than optimum decreased the percentage content of protein-N.
Intervention effect Water temperature higher or lower than optimum markedly increased the soluble-N/protein-N ratio.
Intervention effect Soluble-N and the soluble-N/protein-N ratio were lower in Rikuu-132 than in kamenoo.
Intervention effect High and low water temperatures decreased the percentage content of reducing and non-reducing sugars in the top.
Intervention effect Decreasing water temperature increased the starch content of the top.
Intervention effect High and low water temperatures reduced silicification of epidermal cells of the leaf blade.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cobalt up to 0·01 p.p.m. increased dry weight at 5 p.p.m. manganese.

Taxon: Tomato PlantSolanum lycopersicumt0
Treatment: cobalt up to 0·01 p.p.m.e0
Outcome: dry weighte0
Direction: increasee0

Not reportedComparator

Verbatim

e0
“the addition of cobalt up to 0·01 p.p.m. brought about a gradual decrease in the chlorosis of the top leaves and an increase in dry weight”
✓ located verbatim in the source · abstract, characters 515–653

t0
“Tomato Plant”
✓ located verbatim in the source · title, characters 53–65

Title

The Relative Toxicity of Manganese and Cobalt to the Tomato Plant

M. BAKR AHMED; E. S. TWYMAN Journal of Experimental Botany 1953. doi:10.1093/jxb/4.2.164

Other claims from this paper (7)

Intervention effect At equivalent concentrations, cobalt induced more chlorosis and necrosis than manganese.
Observation Chlorotic plants with cobalt or manganese toxicity contained at least as much iron as normal plants.
Intervention effect Chlorotic leaves responded positively to ferrous sulphate painting.
Intervention effect At 5 p.p.m. manganese, lower leaves were injured regardless of cobalt supply.
Intervention effect Cobalt up to 0·01 p.p.m. gradually decreased top-leaf chlorosis at 5 p.p.m. manganese.
Intervention effect Cobalt at 0·1 p.p.m. caused severe chlorosis, necrosis, and stunted growth.
Intervention effect Raising manganese to 5·0 p.p.m. substantially antidoted cobalt toxicity.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Potassium deficiency reduced transpiration less than dry matter production and lowered transpiration efficiency.

Taxon: Ricinus communis and Gossypium Nankingt0
Treatment: potassium deficiente0
Outcome: efficiency of transpiratione0
Direction: diminutione0

Not reportedComparator

Verbatim

e0
“In potassium deficient plants decrease in the amount of transpired water (Tr) was less pronounced than decrease in the amount of dry matter production (total volume of tissue-powder of whole plant, V), and consequently diminution in the efficiency of transpiration (V/Tr)”
✓ located verbatim in the source · abstract, characters 1822–2093

t0
“Ricinus communis and Gossypium Nanking”
✓ located verbatim in the source · abstract, characters 1633–1671

Title

Relation between the amount of potassium supplied and the specific weight and hygroscopic water absorption of tissue-powder, grade of transpiration, water requirement and water content of plants

Tomoji YAMASHITA Shokubutsugaku Zasshi 1951. doi:10.15281/jplantres1887.64.18

Other claims from this paper (5)

Intervention effectauthor interpretationoriginal resultno effectmeasured

Claim · model-written summary

Calcium deficiency had no such effect on photosynthesis per unit leaf area.

Taxon: Chrysanthemum coronarium var. spatiosumGlebionis coronariat0
Treatment: Calcium deficiencye7
Outcome: photosynthesis per unit leaf areae7
Direction: no_changeinferrede7

Not reportedComparator

Verbatim

t0
“Chrysanthemum coronarium var. spatiosum”
✓ located verbatim in the source · title, characters 92–131

e7
“Calcium deficiency seems to give no such effect on photosynthesis per unit leaf area, but brings about a considerable decrease of photosynthesis per unit dry weight”
✓ located verbatim in the source · abstract, characters 776–940

Title

The Effects of Phosphorus and Calcium Deficiency on the Growth and Dry Matter Production in Chrysanthemum coronarium var. spatiosum in Water Culture

Yasuhiko TEZUKA Shokubutsugaku Zasshi 1959. doi:10.15281/jplantres1887.72.101

Other claims from this paper (8)

Intervention effect Phosphorus deficiency increased chlorophyll content in leaves, causing dark greening.
Intervention effect Calcium deficiency caused necrosis of apical buds.
Intervention effect Calcium deficiency retarded the development of each leaf.
Intervention effect Phosphorus deficiency markedly reduced photosynthetic activity per unit leaf area.
Intervention effect Phosphorus deficiency decreased respiratory activity of each organ.
Intervention effect Calcium deficiency considerably decreased photosynthesis per unit dry weight.
Mechanism The decrease in growth caused by phosphorus deficiency is explained by dry matter production.
Observation Phosphate and calcium ion effects on plant growth depend on the whole amount available to the plant rather than on concentration.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low water temperature reduced nutrient and water absorption less in Rikuu-132 than in kamenoo.

Taxon: rice plantOryza sativae0
Material: Rikuu-132e3
Treatment: low water temperaturee3
Outcome: absorption of nutrients and watere3
Direction: less remarkablee3
Comparator: kamenooe3

Verbatim

e0
“the nutrition and metabolism of the rice plant”
✓ located verbatim in the source · abstract, characters 64–110

e3
“Decrease in dry weight of the top and reduction in the absorption of nutrients and water due to low water temperature were less remarkable with Rikuu-132, a variety resistant to cool-weather, than with kamenoo, one susceptible to cool-weather”
✓ located verbatim in the source · abstract, characters 774–1016

Title

Nutrrients absorption by rice varieties and nitrogen-and carbohydrate-metabolism in the plant as affected by water temperature

I. BABA; Y. TAKAHASHI; I. IWATA Journal of Agricultural Meteorology 1955. doi:10.2480/agrmet.11.61

Other claims from this paper (11)

Intervention effect Water temperature higher or lower than optimum reduced nutrient absorption.
Intervention effect Low temperature reduced water absorption.
Intervention effect Low temperature decreased the moisture content of the top.
Intervention effect Low water temperature decreased dry weight of the top less in Rikuu-132 than in kamenoo.
Intervention effect Water temperature higher or lower than optimum increased the percentage content of NH3-N, amide-N and soluble-N.
Intervention effect Water temperature higher or lower than optimum decreased the percentage content of protein-N.
Intervention effect Water temperature higher or lower than optimum markedly increased the soluble-N/protein-N ratio.
Intervention effect Soluble-N and the soluble-N/protein-N ratio were lower in Rikuu-132 than in kamenoo.
Intervention effect High and low water temperatures decreased the percentage content of reducing and non-reducing sugars in the top.
Intervention effect Decreasing water temperature increased the starch content of the top.
Intervention effect High and low water temperatures reduced silicification of epidermal cells of the leaf blade.

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“decrease in dry weight”

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