Abstract
In precise field trials in the CR in the years 2004 and 2005 the effect of site conditions, yellow- and purple-fleshed varieties and fertilization on the content of total polyphenols (TP) in potato tubers was investigated. Comparing four localities, significantly highest TP content (by 5.7 to 13.4% higher than in other localities) was determined in the locality Stachy in both years, which we ascribe to apparently lower temperatures in the vegetation period in this locality of high altitude. In comparison to yellow flesh varieties, in the case of purple flesh Valfi variety TP content higher by 52 to 153% was recorded as the average of both years. As for the group of eight yellow flesh varieties, Karin variety had the highest TP content and showed a significant increase in comparison to Agria, Saturna and Asterix varieties by 67, 60 and 37%, respectively. TP content was not demonstrably affected by fertilization with mineral fertilizers, but we recorded a tendency to lesser TP content (by 3 to 9.9%) in the variant with higher potassium and magnesium fertilization (166 kg K/ha and 60 kg Mg/ha).
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Claims 8
Claim · model-written summary
Stachy potatoes had 5.7 to 13.4% higher tuber TP than other sites.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- TP contente0
- Direction
- highere0
- Value
- 5.7 to 13.4%e0
- Qualifier
- in both yearse0
- Comparator
- other localitiese0
- Setting
- Stachye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly highest TP content (by 5.7 to 13.4% higher than in other localities) was determined in the locality Stachy in both years”
t0“potato tubers”
Claim · model-written summary
Purple-fleshed Valfi potatoes had 52 to 153% more TP than yellow-fleshed varieties.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Valfie0
- Outcome
- TP contente0
- Direction
- highere0
- Value
- 52 to 153%e0
- Comparator
- yellow flesh varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In comparison to yellow flesh varieties, in the case of purple flesh Valfi variety TP content higher by 52 to 153% was recorded as the average of both years.”
t0“potato tubers”
Claim · model-written summary
Karin had the highest TP among eight yellow-fleshed potato varieties.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Karine0
- Outcome
- TP contente0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As for the group of eight yellow flesh varieties, Karin variety had the highest TP content”
t0“potato tubers”
Claim · model-written summary
Karin potato TP exceeded Agria by 67%.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Karine0
- Outcome
- TP contente0
- Direction
- increasee0
- Value
- 67e0
- Comparator
- Agriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Karin variety had the highest TP content and showed a significant increase in comparison to Agria, Saturna and Asterix varieties by 67, 60 and 37%, respectively.”
t0“potato tubers”
Claim · model-written summary
Karin potato TP exceeded Saturna by 60%.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Karine0
- Outcome
- TP contente0
- Direction
- increasee0
- Value
- 60e0
- Comparator
- Saturnae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Karin variety had the highest TP content and showed a significant increase in comparison to Agria, Saturna and Asterix varieties by 67, 60 and 37%, respectively.”
t0“potato tubers”
Claim · model-written summary
Karin potato TP exceeded Asterix by 37%.
- Taxon
- potatoSolanum tuberosumt0
- Material
- Karine0
- Outcome
- TP contente0
- Direction
- increasee0
- Value
- 37%e0
- Comparator
- Asterixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Karin variety had the highest TP content and showed a significant increase in comparison to Agria, Saturna and Asterix varieties by 67, 60 and 37%, respectively.”
t0“potato tubers”
Claim · model-written summary
Mineral fertilization did not demonstrably affect potato TP.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- fertilization with mineral fertilizerse0
- Outcome
- TP contente0
- Direction
- not demonstrably affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TP content was not demonstrably affected by fertilization with mineral fertilizers”
t0“potato tubers”
Claim · model-written summary
Higher potassium and magnesium fertilization tended to reduce potato TP by 3 to 9.9%.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- higher potassium and magnesium fertilization (166 kg K/ha and 60 kg Mg/ha)e0
- Outcome
- TP contente0
- Direction
- lessere0
- Value
- 3 to 9.9%e0
- Qualifier
- a tendencye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a tendency to lesser TP content (by 3 to 9.9%) in the variant with higher potassium and magnesium fertilization (166 kg K/ha and 60 kg Mg/ha).”
t0“potato tubers”
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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.