Abstract
An organic agricultural system based on natural methods and means of production is an alternative to intensive agriculture. The available research suggests that organic crops, in comparison to the conventional ones, are richer in phenolics and other antioxidants while containing less undesirable pesticide residues and nitrates. The aim of this study was to determine concentrations of polyphenols, lutein, vitamin C, and nitrates in eight potato cultivars (Mazur, Justa, Lawenda, Lech, Tacja, Laskana, Otolia, Magnolia) grown organically and conventionally in a controlled field experiment in Poland. Significant differences between potato tubers of the tested cultivars coming from organic and conventional production were identified for the majority of parameters. Higher concentrations of nitrates and lutein were found in conventional compared to the organic tubers, while organic potatoes were, on average, richer in phenolic compounds. Among the tested cultivars, Magnolia, Otolia, and Laskara were richest in vitamin C and phenolics. Otolia and Laskara also accumulated the highest levels of nitrates. If further confirmed, these observations might be of importance for the producers and consumers, who increasingly search for foods from sustainable and well-controlled agricultural systems.
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Claims 6
Claim · model-written summary
Potato tubers from organic and conventional production differed significantly for the majority of measured parameters
- Taxon
- potato
Solanum tuberosume1 - Organ / stage
- potato tuberse1
- Treatment
- organice1
- Outcome
- majority of parameterse1
- Comparator
- conventionale1
- Setting
- controlled field experiment in Polande6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Significant differences between potato tubers of the tested cultivars coming from organic and conventional production were identified for the majority of parameters”
e6“in a controlled field experiment in Poland”
Claim · model-written summary
Conventional production gave higher nitrate concentrations in potato tubers than organic production
- Taxon
- potato
Solanum tuberosume1 - Organ / stage
- tuberse2
- Treatment
- conventionale2
- Outcome
- concentrations of nitratese2
- Direction
- Highere2
- Comparator
- organice2
- Setting
- controlled field experiment in Polande6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Significant differences between potato tubers of the tested cultivars coming from organic and conventional production were identified for the majority of parameters”
e2“Higher concentrations of nitrates and lutein were found in conventional compared to the organic tubers”
e6“in a controlled field experiment in Poland”
Claim · model-written summary
Conventional production gave higher lutein concentrations in potato tubers than organic production
- Taxon
- potato
Solanum tuberosume1 - Organ / stage
- tuberse2
- Treatment
- conventionale2
- Outcome
- luteine2
- Direction
- Highere2
- Comparator
- organice2
- Setting
- controlled field experiment in Polande6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Significant differences between potato tubers of the tested cultivars coming from organic and conventional production were identified for the majority of parameters”
e2“Higher concentrations of nitrates and lutein were found in conventional compared to the organic tubers”
e6“in a controlled field experiment in Poland”
Claim · model-written summary
Organic potato tubers were on average richer in phenolic compounds
- Taxon
- potato
Solanum tuberosume3 - Treatment
- organice3
- Outcome
- phenolic compoundse3
- Direction
- richere3
- Qualifier
- on averagee3
- Setting
- controlled field experiment in Polande6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e3“organic potatoes were, on average, richer in phenolic compounds”
e6“in a controlled field experiment in Poland”
Claim · model-written summary
Magnolia, Otolia and Laskara were the richest potato cultivars in vitamin C and phenolics
- Taxon
- potato
Solanum tuberosume1 - Material
- Magnolia, Otolia, and Laskarae4
- Outcome
- vitamin C and phenolicse4
- Direction
- richeste4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Significant differences between potato tubers of the tested cultivars coming from organic and conventional production were identified for the majority of parameters”
e4“Among the tested cultivars, Magnolia, Otolia, and Laskara were richest in vitamin C and phenolics”
Claim · model-written summary
Otolia and Laskara potato tubers accumulated the highest nitrate levels
- Taxon
- potato
Solanum tuberosume1 - Material
- Otolia and Laskarae5
- Outcome
- levels of nitratese5
- Direction
- higheste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“Significant differences between potato tubers of the tested cultivars coming from organic and conventional production were identified for the majority of parameters”
e5“Otolia and Laskara also accumulated the highest levels of nitrates”
The same questions in other papers
cultivation system · quality: phytochemicals · Solanum tuberosum (potato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- 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.