Abstract
The effects of low temperatures on the break of dormancy of onion bulbs and changes in oligosaccharides, phenolics and peroxidase activity were examined. Cold treatment at 9°C was more effective on break of dormancy than at 0°C, but in both cases cold temperatures caused a rapid break of dormancy. Changes in oligosaccharides and glucose were linked to sprouting stages, with higher concentrations at the onset of sprouting for cold treatments of 9°C for 3 weeks and 0°C for 2 weeks; for the other treatments (9°C for 2 weeks and 0°C for 3 weeks) the high concentrations were reached after sprouting. There was an inverse relation between sprouting on the one hand, and phenolics and peroxidase activity on the other hand. These results emphasized a positive effect of low temperature on breaking dormancy of onion bulbs and the negative role of phenolics and peroxidase on inner bud development.
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Claims 6
Claim · model-written summary
Cold treatment at 9°C was more effective than 0°C in breaking onion bulb dormancy.
- Taxon
- Onion
Allium cepat0 - Treatment
- Cold treatment at 9°Ce1
- Outcome
- break of dormancye1
- Direction
- more effectivee1
- Comparator
- 0°Ce1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inner Bud of Onion (Allium cepaL.)”
e1“Cold treatment at 9°C was more effective on break of dormancy than at 0°C”
Claim · model-written summary
Cold temperatures caused a rapid break of dormancy in onion in both cases.
- Taxon
- OnionAllium cepat0
- Treatment
- cold temperaturese2
- Outcome
- break of dormancye2
- Direction
- increaseinferrede2
- Qualifier
- rapide2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inner Bud of Onion (Allium cepaL.)”
e2“but in both cases cold temperatures caused a rapid break of dormancy”
Claim · model-written summary
Oligosaccharide and glucose concentrations were higher at sprouting onset after 9°C for 3 weeks and 0°C for 2 weeks.
- Taxon
- OnionAllium cepat0
- Treatment
- cold treatments of 9°C for 3 weeks and 0°C for 2 weekse3
- Outcome
- oligosaccharides and glucosee3
- Direction
- highere3
- Qualifier
- at the onset of sproutinge3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inner Bud of Onion (Allium cepaL.)”
e3“Changes in oligosaccharides and glucose were linked to sprouting stages, with higher concentrations at the onset of sprouting for cold treatments of 9°C for 3 weeks and 0°C for 2 weeks”
Claim · model-written summary
Phenolics and peroxidase activity were inversely related to sprouting in onion.
- Taxon
- OnionAllium cepat0
- Treatment
- sproutinge5
- Outcome
- phenolics and peroxidase activitye5
- Direction
- decreaseinferrede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inner Bud of Onion (Allium cepaL.)”
e5“There was an inverse relation between sprouting on the one hand, and phenolics and peroxidase activity on the other hand”
Claim · model-written summary
High oligosaccharide and glucose concentrations were reached after sprouting for 9°C for 2 weeks and 0°C for 3 weeks.
- Taxon
- OnionAllium cepat0
- Treatment
- 9°C for 2 weeks and 0°C for 3 weekse4
- Outcome
- high concentrationse4
- Direction
- higherinferrede4
- Qualifier
- reached after sproutinge4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inner Bud of Onion (Allium cepaL.)”
e4“for the other treatments (9°C for 2 weeks and 0°C for 3 weeks) the high concentrations were reached after sprouting”
Claim · model-written summary
Phenolics and peroxidase have a negative role in onion inner bud development.
- Taxon
- OnionAllium cepat0
- Gene
- peroxidasee6
- Compound
- phenolicse6
- Outcome
- inner bud developmente6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Inner Bud of Onion (Allium cepaL.)”
e6“the negative role of phenolics and peroxidase on inner bud development”
The same questions in other papers
cold · growth · Allium cepa (onion)Positive and negative results
9 papers in the same direction as this paper · 4 in the opposite direction
- negative
- no effect
- negative
10 papers more in this group
See all 14 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.