Abstract
Onions and other Allium crops contain high levels of dietary phenolics and, unlike many other crops, accumulate the beneficial mineral selenium. Selenium-enhanced Allium crops are of interest both from a public good perspective and as a market positioning strategy for growers. Field trials were carried out to i) identify onion and scallion varieties that contain high levels of health-promoting phenolic and flavonoid compounds as potential targets for selenium supplementation and ii) investigate selenium supplementation in the widely-grown commercial onion variety ‘Hyskin’ at different application rates of nitrogen fertilizer. Levels of selenium in onion bulbs were significantly increased from 0.5–5.9 µg/g dry weight (DW) to 40.6–70.0 µg/g DW.
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Claims 1
Claim · model-written summary
Selenium supplementation significantly increased selenium levels in onion bulbs from 0.5–5.9 to 40.6–70.0 µg/g DW in field trials.
- Taxon
- onion
Allium cepae3 - Material
- Hyskine1
- Organ / stage
- bulbse3
- Treatment
- selenium supplementatione1
- Outcome
- Levels of selenium in onion bulbse3
- Direction
- increasede3
- Value
- 40.6–70.0 µg/g DWe3
- Qualifier
- from 0.5–5.9 µg/g dry weight (DW)e3
- Setting
- Field trialse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“investigate selenium supplementation in the widely-grown commercial onion variety ‘Hyskin’ at different application rates of nitrogen fertilizer”
e2“Field trials were carried out”
e3“Levels of selenium in onion bulbs were significantly increased from 0.5–5.9 µg/g dry weight (DW) to 40.6–70.0 µg/g DW”
The same questions in other papers
selenium atom · nutrient: content · Allium cepa (onion)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
2 papers more in this group
See all 6 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.