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“dry weight decrease”

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Organism: Solanum tuberosum ✕

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Supplemental UV-B did not significantly decrease dry weight in potato.

Taxon: potatoSolanum tuberosume1
Treatment: supplemental enhancement of 32 mW m −2 effective UV-B radiatione0
Outcome: dry weightse0
Direction: not significantly decreasede0
Comparator: control plants that received only solar UV-B radiatione0

Verbatim

e0
“The dry weights of all 4 species and pea and wheat plant height were not significantly decreased by a supplemental enhancement of 32 mW m −2 effective UV-B radiation from cellulose acetate filtered FS-40 sunlamps for 6 hours each day, relative to control plants that received only solar UV-B radiation”
✓ located verbatim in the source · abstract, characters 837–1138

e1
“potato ( Solanum tuberosum L.)”
✓ located verbatim in the source · abstract, characters 117–147

Title

Effects of Deletion and Enhancement of Ultraviolet-B (280–315nm) Radiation on Plants Grown at 3000 m Elevation1

Michael R. Becwar; Frank D. Moore; Michael J. Burke Journal of the American Society for Horticultural Science 1982. doi:10.21273/jashs.107.5.771

Other claims from this paper (9)

Intervention effect UV-B transmitting films produced shorter wheat than UV-B excluding Mylar.
Intervention effect UV-B film treatments did not significantly differ in potato dry weight.
Intervention effect UV-B film treatments did not significantly differ in radish dry weight.
Intervention effect UV-B film treatments did not significantly differ in wheat dry weight.
Intervention effect Supplemental UV-B did not significantly decrease dry weight in pea.
Intervention effect Supplemental UV-B did not significantly decrease dry weight in radish.
Intervention effect Supplemental UV-B did not significantly decrease dry weight in wheat.
Intervention effect Supplemental UV-B did not significantly decrease pea height.
Intervention effect Supplemental UV-B did not significantly decrease wheat height.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Harvest index was an exception to the decrease under higher soil salinity.

Taxon: potatoSolanum tuberosume0
Treatment: soil salinitye0
Outcome: harvest indexe0

Not reportedComparatorDirection

Verbatim

e0
“The increase in soil salinity caused to decrease in all parameters (total fresh tuber yield, tuber number, tuber dry weight, weight of potato classified as Grade A, biomass and leaf area) except harvest index”
✓ located verbatim in the source · abstract, characters 1137–1345

Title

Photosynthetic Response of Potato Plants to Soil Salinity

Berkant Ödemiş; Mehmet Emin Çalışkan DergiPark (Istanbul University) 2014

Other claims from this paper (10)

Intervention effect Irrigation water requirement decreased 4.5%-18.9% as irrigation salinity increased.
Intervention effect Crop water use decreased 3%-16% as irrigation salinity increased.
Intervention effect Water use efficiency decreased 16.45-19.36% as irrigation salinity increased.
Intervention effect Higher soil salinity decreased potato tuber yield, tuber number and tuber dry weight.
Intervention effect Higher soil salinity decreased Grade A potato weight, biomass and leaf area.
Intervention effect Foliar proline did not significantly affect most potato yield parameters.
Intervention effect Stomatal conductance was the most affected photosynthetic parameter under salinity.
Intervention effect Photosynthesis, transpiration and stomatal conductance rose in T7 versus T3.5.
Intervention effect Irrigation salinity significantly affected tuber bulking I and II periods.
Intervention effect Proline significantly affected tuber initiation and tuber bulking II.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Shepody root dry weight did not respond to PsJN inoculation.

Taxon: potatoesSolanum tuberosume1
Material: Shepodye0
Treatment: Inoculatede0
Interactor: strain PsJNe1other
Outcome: root dry weighte0
Direction: no responsee0

Not reportedComparator

Verbatim

e0
“Inoculated plantlets of cultivars Norchip, Kennebec, Shepody, and Chaleur showed, in root dry weight, a five- to eight-fold increase, two- to three-fold increase, no response, and a decrease of 50%, respectively.”
✓ located verbatim in the source · abstract, characters 620–832

e1
“growth promotion of potatoes by strain PsJN was cultivar specific”
✓ located verbatim in the source · abstract, characters 553–618

Title

A gnotobiotic bioassay for studying interactions between potatoes and plant growth-promoting rhizobacteria

Kenneth L. Conn; George Lazarovits; Jerzy Nowak Canadian Journal of Microbiology 1997. doi:10.1139/m97-117

Other claims from this paper (10)

Method / resource The gnotobiotic potato bioassay was highly useful for testing growth promotion by PsJN.
Intervention effect PsJN increased root dry weight five- to eight-fold in Norchip.
Intervention effect PsJN increased root dry weight two- to three-fold in Kennebec.
Intervention effect PsJN reduced Chaleur root dry weight by 50%.
Method / resource Haulm dry weight followed root trends but was less consistent as an indicator.
Method / resource Minor medium, temperature and light changes did not materially change bioassay results.
Method / resource Screening eliminated 93% of transconjugates retaining growth-promotion activity.
Method / resource Seven retested isolates were confirmed to have lost growth-promoting ability.
Intervention effect Other bacterial genera did not increase potato plantlet growth.
Intervention effect Several other bacterial isolates inhibited potato root and haulm growth.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

On a fresh weight basis, cytochrome and alternative pathway capacities did not change appreciably with extra mannitol

Taxon: Solanum tuberosumSolanum tuberosume0
Treatment: transfer to medium with extra mannitole3
Outcome: cytochrome and alternative pathway capacitiese4
Direction: no_changeinferrede4
Qualifier: fresh weight basise3

Not reportedComparator

Verbatim

e0
“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
✓ located verbatim in the source · abstract, characters 0–190

e3
“Respiration increases upon transfer to medium with extra mannitol, especially when expressed on a fresh weight basis”
✓ located verbatim in the source · abstract, characters 507–623

e4
“On this basis cytochrome and alternative pathway capacities do not change appreciably”
✓ located verbatim in the source · abstract, characters 625–710

Title

Influence of osmotic stress on the respiration of potato tuber callus

Linus H. W. van der Plas; Marijke J. Wagner Physiologia Plantarum 1984. doi:10.1111/j.1399-3054.1984.tb04592.x

Other claims from this paper (14)

Intervention effect Potato callus fresh weight decreased upon transfer to mannitol medium
Intervention effect Potato callus dry weight increased upon transfer to mannitol medium
Intervention effect Osmolarity of the intracellular fluid of potato callus increased upon transfer to mannitol medium
Mechanism Mannitol is probably taken up from the medium until tissue osmolarity equals that of the medium
Intervention effect Respiration of potato callus increased upon transfer to medium with extra mannitol, especially per fresh weight
Intervention effect Participation of the alternative pathway in uninhibited respiration of potato callus rose from about 10% to 90% upon transfer
Association Increase in respiration is partly correlated with decrease in fresh weight upon transfer
Intervention effect Capacities of the cytochrome and alternative pathway declined per disc upon transfer
Intervention effect Total respiration per disc of potato callus significantly increased upon transfer
Mechanism Total respiration per disc increased due to increased participation of the alternative pathway
Intervention effect ATP production per disc was almost unchanged before and after transfer
Mechanism The alternative pathway may function as a reserve capacity in potato callus when cytochrome pathway ATP production is impaired
Intervention effect Growth of potato callus became negligible on medium with 0.5 M mannitol after osmotic adaptation
Observation Potato callus retained its viability after osmotic adaptation on 0.5 M mannitol

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

ATP production per disc was almost unchanged before and after transfer

Taxon: Solanum tuberosumSolanum tuberosume0
Treatment: transfere6
Outcome: ATP‐production per disce6
Direction: no_changeinferrede6

Not reportedComparator

Verbatim

e0
“Potato tuber ( Solanum tuberosum L. cv. Bintje) callus shows a decrease in fresh weight and an increase in dry weight upon transfer to nutrient medium supplemented with 0.3 or 0.5 M mannitol”
✓ located verbatim in the source · abstract, characters 0–190

e6
“This results in an almost equal ATP‐production per disc before and after transfer”
✓ located verbatim in the source · abstract, characters 1244–1325

Title

Influence of osmotic stress on the respiration of potato tuber callus

Linus H. W. van der Plas; Marijke J. Wagner Physiologia Plantarum 1984. doi:10.1111/j.1399-3054.1984.tb04592.x

Other claims from this paper (14)

Intervention effect Potato callus fresh weight decreased upon transfer to mannitol medium
Intervention effect Potato callus dry weight increased upon transfer to mannitol medium
Intervention effect Osmolarity of the intracellular fluid of potato callus increased upon transfer to mannitol medium
Mechanism Mannitol is probably taken up from the medium until tissue osmolarity equals that of the medium
Intervention effect Respiration of potato callus increased upon transfer to medium with extra mannitol, especially per fresh weight
Intervention effect On a fresh weight basis, cytochrome and alternative pathway capacities did not change appreciably with extra mannitol
Intervention effect Participation of the alternative pathway in uninhibited respiration of potato callus rose from about 10% to 90% upon transfer
Association Increase in respiration is partly correlated with decrease in fresh weight upon transfer
Intervention effect Capacities of the cytochrome and alternative pathway declined per disc upon transfer
Intervention effect Total respiration per disc of potato callus significantly increased upon transfer
Mechanism Total respiration per disc increased due to increased participation of the alternative pathway
Mechanism The alternative pathway may function as a reserve capacity in potato callus when cytochrome pathway ATP production is impaired
Intervention effect Growth of potato callus became negligible on medium with 0.5 M mannitol after osmotic adaptation
Observation Potato callus retained its viability after osmotic adaptation on 0.5 M mannitol

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