Abstract
9Cardinal9, 9Queen9 and 9Emperor9 grapes were used in export chests to determine the relation of sawdust moisture content, distribution of NaHSO3 in sawdust, distribution of dibromotetrachloroethane (DBTCE) in sawdust, and DBTCE-impregnated pads to the spread of Botrytis decay and incidence of bleaching injury of the fruit. Moisture content was directly related to decay and bleaching. Mixing of either fungistat with sawdust just prior to application to the fruit reduced overall decay and bleaching compared to top-application to the sawdust-filled chest. Vibration was not effective in distributing top-applied NaHSO3 to the bottom of the pack, but did have some effect in distributing DBTCE. Top and bottom pads impregnated with DBTCE controlled decay to some extent in sawdust-packed grapes, but were significantly poorer than either NaHSO3 or DBTCE powder mixed with the sawdust. DBTCE was superior to NaHSO3 as a fungistat with respect to longevity of effectiveness and non-injury to the fruit, its pungency and lachrymatory effect made it disagreeable to handle. It was emphasized that DBTCE could not be recommended for use since the chemical has not been cleared by the Federal Food and Drug Administration for use on grapes.
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Claims 10
Claim · model-written summary
Higher sawdust moisture was directly related to grape decay.
Not reportedDirection
Verbatim
e0“Moisture content was directly related to decay and bleaching”
e1“grapes were used in export chests”
Claim · model-written summary
Higher sawdust moisture was directly related to bleaching.
Not reportedDirection
Verbatim
e0“Moisture content was directly related to decay and bleaching”
e1“grapes were used in export chests”
Claim · model-written summary
Mixing either fungistat into sawdust before fruit application reduced decay compared with top application.
Verbatim
e0“Mixing of either fungistat with sawdust just prior to application to the fruit reduced overall decay and bleaching compared to top-application to the sawdust-filled chest”
e1“grapes were used in export chests”
Claim · model-written summary
Mixing either fungistat into sawdust before fruit application reduced bleaching compared with top application.
Verbatim
e0“Mixing of either fungistat with sawdust just prior to application to the fruit reduced overall decay and bleaching compared to top-application to the sawdust-filled chest”
e1“grapes were used in export chests”
Claim · model-written summary
Vibration did not distribute top-applied NaHSO3 to the bottom of the pack.
- Taxon
- grapese1
- Treatment
- Vibratione0
- Outcome
- distributing top-applied NaHSO3 to the bottom of the packe0
- Direction
- not effectivee0
Not reportedComparator
Verbatim
e0“Vibration was not effective in distributing top-applied NaHSO3 to the bottom of the pack”
e1“grapes were used in export chests”
Claim · model-written summary
Vibration had some effect on DBTCE distribution.
Not reportedTreatmentComparatorDirection
Verbatim
e0“but did have some effect in distributing DBTCE”
e1“grapes were used in export chests”
Claim · model-written summary
DBTCE pads controlled some decay but performed significantly worse than powders mixed into sawdust.
Verbatim
e0“Top and bottom pads impregnated with DBTCE controlled decay to some extent in sawdust-packed grapes, but were significantly poorer than either NaHSO3 or DBTCE powder mixed with the sawdust”
Claim · model-written summary
DBTCE had longer effective life than NaHSO3.
Verbatim
e0“DBTCE was superior to NaHSO3 as a fungistat with respect to longevity of effectiveness and non-injury to the fruit”
e1“grapes were used in export chests”
Claim · model-written summary
DBTCE caused less fruit injury than NaHSO3.
Verbatim
e0“DBTCE was superior to NaHSO3 as a fungistat with respect to longevity of effectiveness and non-injury to the fruit”
e1“grapes were used in export chests”
Claim · model-written summary
The authors advised against using DBTCE on grapes because it lacked regulatory clearance.
Verbatim
e0“DBTCE could not be recommended for use since the chemical has not been cleared by the Federal Food and Drug Administration for use on grapes”
The same questions in other papers
growing medium · crop injury · VitisPositive and negative results
1 in the opposite direction
- no effect
growing medium · disease · VitisResults agree
2 papers in the same direction as this paper
- positive
- positive
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.