Abstract
Losses of onion are caused by spoilage from microbial infection, sprouting and mass loss. Pre-harvest factors such as cultivar, climate and growing conditions, as well as harvesting, curing, storage duration, temperature and relative humidity during storage, influence losses. The optimal storage conditions for onions are 0°C and 65-75% relative humidity (RH); however, it is costly to store onions at this low temperature for long periods. It can also be challenging to maintain low RH at low storage temperature. The aims of the present study were: 1) to test the applicability of a HortiSens® sensor to monitor temperature and RH under experimental conditions and to evaluate the effects of 2) conventional and pulse cooling, and 3) low and high RH during storage on the quality of conventionally and organically grown onions. We found that online microclimate monitoring using the novel wireless HortiSens® sensor gave similar results as data from other sensors. Onions had higher basal root sprouting with pulse cooling and after storage in high RH. There was a higher incidence of disease at high RH, but lower mass losses. Organically grown onions had higher incidence of root sprouting and diseases than conventionally grown onions, especially during storage at high RH.
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Claims 7
Claim · model-written summary
The HortiSens® sensor gave microclimate monitoring results similar to other sensors.
- Taxon
- onions
Allium cepat0 - Outcome
- microclimate monitoringe0
- Direction
- similare0
- Comparator
- other sensorse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onions”
e0“online microclimate monitoring using the novel wireless HortiSens® sensor gave similar results as data from other sensors”
Claim · model-written summary
Pulse cooling increased basal root sprouting in stored onions.
- Taxon
- onionsAllium cepat0
- Organ / stage
- basal roote0
- Treatment
- pulse coolinge0
- Outcome
- basal root sproutinge0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onions”
e0“Onions had higher basal root sprouting with pulse cooling and after storage in high RH.”
Claim · model-written summary
Storage at high relative humidity increased basal root sprouting in onions.
- Taxon
- onionsAllium cepat0
- Organ / stage
- basal roote0
- Treatment
- high RHe0
- Outcome
- basal root sproutinge0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onions”
e0“Onions had higher basal root sprouting with pulse cooling and after storage in high RH.”
Claim · model-written summary
High relative humidity increased disease incidence during onion storage.
- Taxon
- onionsAllium cepat0
- Treatment
- high RHe0
- Outcome
- incidence of diseasee0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onions”
e0“There was a higher incidence of disease at high RH, but lower mass losses.”
Claim · model-written summary
High relative humidity lowered onion mass losses during storage.
- Taxon
- onionsAllium cepat0
- Treatment
- high RHe0
- Outcome
- mass lossese0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“onions”
e0“There was a higher incidence of disease at high RH, but lower mass losses.”
Claim · model-written summary
Organically grown onions had more root sprouting than conventionally grown onions, especially at high storage humidity.
- Taxon
- onionsAllium cepae0
- Material
- Organically grown onionse0
- Outcome
- root sproutinge0
- Direction
- highere0
- Qualifier
- especially during storage at high RHe0
- Comparator
- conventionally grown onionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organically grown onions had higher incidence of root sprouting and diseases than conventionally grown onions, especially during storage at high RH.”
Claim · model-written summary
Organically grown onions had more disease than conventionally grown onions, especially at high storage humidity.
- Taxon
- onionsAllium cepae0
- Material
- Organically grown onionse0
- Outcome
- diseasese0
- Direction
- highere0
- Qualifier
- especially during storage at high RHe0
- Comparator
- conventionally grown onionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organically grown onions had higher incidence of root sprouting and diseases than conventionally grown onions, especially during storage at high RH.”
The same questions in other papers
humidity · quality: postharvest · Allium cepa (onion)Positive and negative results
2 in the opposite direction
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humidity · disease · Allium cepa (onion)Positive and negative results
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8 papers in the same direction as this paper · 6 in the opposite direction
- positive
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11 papers more in this group
See all 15 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.