Abstract
In the years 2005 and 2006 the effect of site conditions, yellow and purple fleshed varieties and mineral fertilization on the content of total polyphenols (TP) in potato tubers was investigated. In both years significantly the highest TP content (by 5.7 to 56.3% higher than in other localities) was determined at the Stachy locality; we ascribe it to apparently lower temperatures in the vegetation period at this locality of higher altitude. In the purple flesh Valfi variety TP content higher by 74 to 141% was recorded in average of both years, in comparison to yellow flesh varieties. In the group of eight yellow flesh varieties the highest TP content was recorded in the Ditta variety; it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties. TP content was not significantly affected by fertilization with mineral fertilizers.
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Claims 6
Claim · model-written summary
Potato tubers at Stachy had the highest total polyphenol content, 5.7 to 56.3% above other localities.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- TP contente0
- Direction
- higheste0
- Value
- 5.7 to 56.3%e0
- Comparator
- other localitiese0
- Setting
- Stachy localitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In both years significantly the highest TP content (by 5.7 to 56.3% higher than in other localities) was determined at the Stachy locality”
t0“potatoes”
Claim · model-written summary
Purple-fleshed Valfi potato had 74 to 141% higher total polyphenol content than yellow-fleshed varieties.
- Taxon
- potatoesSolanum tuberosumt0
- Material
- Valfie0
- Outcome
- TP contente0
- Direction
- highere0
- Value
- 74 to 141%e0
- Comparator
- yellow flesh varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the purple flesh Valfi variety TP content higher by 74 to 141% was recorded in average of both years, in comparison to yellow flesh varieties”
t0“potatoes”
Claim · model-written summary
Ditta had the highest total polyphenol content among eight yellow-fleshed potato varieties, exceeding Saturna by 38%.
- Taxon
- potatoesSolanum tuberosumt0
- Material
- Dittae0
- Outcome
- TP contente0
- Direction
- highere0
- Value
- 38e0
- Comparator
- Saturnae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the group of eight yellow flesh varieties the highest TP content was recorded in the Ditta variety; it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties”
t0“potatoes”
Claim · model-written summary
Ditta potato had 29% higher total polyphenol content than Agria.
- Taxon
- potatoesSolanum tuberosumt0
- Material
- Dittae1
- Outcome
- TP contente1
- Direction
- highere0
- Value
- 29e0
- Comparator
- Agriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties”
e1“TP content was recorded in the Ditta variety”
t0“potatoes”
Claim · model-written summary
Ditta potato had 24% higher total polyphenol content than Asterix.
- Taxon
- potatoesSolanum tuberosumt0
- Material
- Dittae1
- Outcome
- TP contente1
- Direction
- highere0
- Value
- 24%e0
- Comparator
- Asterixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it was higher by 38, 29 and 24% in comparison with Saturna, Agria and Asterix varieties”
e1“TP content was recorded in the Ditta variety”
t0“potatoes”
Claim · model-written summary
Mineral fertilizer did not significantly alter potato total polyphenol content.
- Taxon
- potatoesSolanum tuberosumt0
- Treatment
- fertilization with mineral fertilizerse0
- Outcome
- TP contente0
- Direction
- not significantly affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TP content was not significantly affected by fertilization with mineral fertilizers”
t0“potatoes”
The same questions in other papers
fertilization · quality: phytochemicals · Solanum tuberosum (potato)Positive and negative results
4 papers in the same direction as this paper · 14 in the opposite direction
- positive
- positive
- positive
15 papers more in this group
See all 19 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.