Abstract
A continuous-flow spouted-bed disinfestor developed at the Stored Grain Research Laboratory was tested for on-farm heat disinfestation of barley. About 30 t of barley naturally infested with mixed-age populations of Rhyzop- ertha dominica (F.) and Tribolium castaneum (Herbst) were passed through the unit. The incorporation of a draft tube helped to achieve a comparatively uniform grain temperature ( ± 2°C) and minimised heat loss. Four target grain tem- peratures (57, 58, 62.2 and 63.3°C) were achieved during these trials. After initial heating, the grain temperature was maintained at each temperature for 5, 3, 1 and 1 minutes, respectively. Previous studies suggested these treatments were likely to ensure complete disinfestation of R. dominica and indeed no live insects were found after heat treatment. The operational cost of the treatment was about $1.30/t. The heat treatment did affect germination because the grain was not actively cooled afterwards. Cooling was not considered necessary as the grain was being used for stockfeed.
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Claims 5
Claim · model-written summary
A draft tube made grain temperature comparatively uniform, within ± 2°C.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree1 - Treatment
- incorporation of a draft tubee0
- Outcome
- grain temperaturee0
- Direction
- comparatively uniforme0
- Value
- ± 2°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The incorporation of a draft tube helped to achieve a comparatively uniform grain temperature ( ± 2°C) and minimised heat loss.”
e1“disinfestation of barley.”
Claim · model-written summary
The draft tube minimized heat loss.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- incorporation of a draft tubee0
- Outcome
- heat losse0
- Direction
- minimisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The incorporation of a draft tube helped to achieve a comparatively uniform grain temperature ( ± 2°C) and minimised heat loss.”
e1“disinfestation of barley.”
Claim · model-written summary
No live insects were found after grain heat treatment.
- Taxon
- barleyHordeum vulgaree2
- Treatment
- heat treatmente0
- Interactor
- R. dominicae1pest
- Outcome
- no live insectse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no live insects were found after heat treatment.”
e1“R. dominica”
e2“disinfestation of barley.”
Claim · model-written summary
The heat treatment cost about $1.30/t.
Not reportedTaxon
Verbatim
e0“The operational cost of the treatment was about $1.30/t.”
Claim · model-written summary
Heat treatment affected germination when grain was not actively cooled afterwards.
- Taxon
- barleyHordeum vulgaree1
- Treatment
- heat treatmente0
- Outcome
- germinatione0
- Qualifier
- grain was not actively cooled afterwardse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The heat treatment did affect germination because the grain was not actively cooled afterwards.”
e1“disinfestation of barley.”
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See all 7 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.