Abstract
Two experiments with Emperor and one with Thompson Seedless grapes were made to test the relation of decay and bleaching injury to storage air velocity and relative humidity and to the initial and storage doses of SO2. Air velocities from 12 to 160 feet per minute had no significant effect on either rate of spread of decay or amount of bleaching injury. Storage relative humidities (RH) of 75, 85, and 95% had no significant effect on the decay of Emperor grapes if the dose of SO2 was adjusted to provide the same sustained concentration around the grapes at each RH level. This adjustment, to compensate for absorption, necessitated increasing the dose for each SO2 concentration by about 19% for each 10% increase in RH. At the same time the dose of SO2 at each RH needed to be increased by about 80% to raise the concentration from 0.025% concentration to 0.05% concentration, by about 65% from 0.05% to 0.1% concentration, and by about 50% from 0.1 to 0.2% concentration of SO2. Decay in Thompson Seedless grapes increased significantly with RH, indicating that the SO2 dose adjustment used for Emperor grapes was not adequate for Thompson Seedless. Concentrations of 0.5 and 0.25% SO2 used in the initial treatment and 0.2 to 0.025% in weekly storage treatments had a highly significant effect on the rate of spread of decay and amount of bleaching injury of Emperor grapes, and on decay of Thompson Seedless grapes.
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Claims 10
Claim · model-written summary
Storage air velocities of 12 to 160 feet per minute had no significant effect on decay spread or bleaching injury in table grapes.
- Taxon
- Table Grapest0
- Treatment
- Air velocities from 12 to 160 feet per minutee1
- Outcome
- rate of spread of decay or amount of bleaching injurye1
- Direction
- no significant effecte1
Not reportedComparator
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e1“Air velocities from 12 to 160 feet per minute had no significant effect on either rate of spread of decay or amount of bleaching injury”
Claim · model-written summary
Storage relative humidity of 75, 85 or 95% had no significant effect on decay of Emperor grapes when SO2 dose was adjusted for absorption.
- Taxon
- Table Grapest0
- Material
- Emperore0
- Treatment
- Storage relative humidities (RH) of 75, 85, and 95%e2
- Outcome
- decaye2
- Direction
- no significant effecte2
- Qualifier
- if the dose of SO2 was adjusted to provide the same sustained concentration around the grapes at each RH levele2
Not reportedComparator
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e0“Two experiments with Emperor and one with Thompson Seedless grapes”
e2“Storage relative humidities (RH) of 75, 85, and 95% had no significant effect on the decay of Emperor grapes if the dose of SO2 was adjusted to provide the same sustained concentration around the grapes at each RH level”
Claim · model-written summary
Initial and weekly SO2 concentrations had a highly significant effect on decay spread and bleaching injury of Emperor grapes; the direction is not stated.
- Taxon
- Table Grapest0
- Material
- Emperore3
- Treatment
- Concentrations of 0.5 and 0.25% SO2 used in the initial treatment and 0.2 to 0.025% in weekly storage treatmentse3
- Outcome
- rate of spread of decay and amount of bleaching injurye3
Not reportedComparatorDirection
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e3“Concentrations of 0.5 and 0.25% SO2 used in the initial treatment and 0.2 to 0.025% in weekly storage treatments had a highly significant effect on the rate of spread of decay and amount of bleaching injury of Emperor grapes, and on decay of Thompson Seedless grapes”
Claim · model-written summary
The SO2 dose had to increase by about 19% for each 10% rise in relative humidity to hold the sustained concentration.
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e4“This adjustment, to compensate for absorption, necessitated increasing the dose for each SO2 concentration by about 19% for each 10% increase in RH”
Claim · model-written summary
Raising SO2 concentration from 0.025% to 0.05% required about an 80% increase in dose at each relative humidity.
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e5“the dose of SO2 at each RH needed to be increased by about 80% to raise the concentration from 0.025% concentration to 0.05% concentration, by about 65% from 0.05% to 0.1% concentration, and by about 50% from 0.1 to 0.2% concentration of SO2”
Claim · model-written summary
Raising SO2 concentration from 0.05% to 0.1% required about a 65% increase in dose at each relative humidity.
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e5“the dose of SO2 at each RH needed to be increased by about 80% to raise the concentration from 0.025% concentration to 0.05% concentration, by about 65% from 0.05% to 0.1% concentration, and by about 50% from 0.1 to 0.2% concentration of SO2”
Claim · model-written summary
Raising SO2 concentration from 0.1% to 0.2% required about a 50% increase in dose at each relative humidity.
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e5“the dose of SO2 at each RH needed to be increased by about 80% to raise the concentration from 0.025% concentration to 0.05% concentration, by about 65% from 0.05% to 0.1% concentration, and by about 50% from 0.1 to 0.2% concentration of SO2”
Claim · model-written summary
Decay in Thompson Seedless grapes increased significantly with relative humidity.
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e0“Two experiments with Emperor and one with Thompson Seedless grapes”
e6“Decay in Thompson Seedless grapes increased significantly with RH”
Claim · model-written summary
The SO2 dose adjustment used for Emperor grapes was not adequate for Thompson Seedless grapes.
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e7“indicating that the SO2 dose adjustment used for Emperor grapes was not adequate for Thompson Seedless”
Claim · model-written summary
Initial and weekly SO2 concentrations had a highly significant effect on decay of Thompson Seedless grapes; the direction is not stated.
- Taxon
- Table Grapest0
- Material
- Thompson Seedlesse3
- Treatment
- Concentrations of 0.5 and 0.25% SO2 used in the initial treatment and 0.2 to 0.025% in weekly storage treatmentse3
- Outcome
- decaye3
Not reportedComparatorDirection
Verbatim
t0“Decay and Bleaching Injury of Table Grapes”
e3“Concentrations of 0.5 and 0.25% SO2 used in the initial treatment and 0.2 to 0.025% in weekly storage treatments had a highly significant effect on the rate of spread of decay and amount of bleaching injury of Emperor grapes, and on decay of Thompson Seedless grapes”
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See all 21 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.