Abstract
The aim of the study was to evaluate the effect of selected agronomic factors (nitrogen fertilization, chemical protection, the application of a biostimulant, hydrogel, and supplementary irrigation) on the content of bioactive compounds and the antioxidant capacity of table potato tubers. The research hypothesis assumed that the applied agronomic treatments significantly modify the health-promoting potential of potato tubers. The research was carried out in 2020–21 on two edible potato varieties: Gardena and Denar. The results indicate that the factor differentiating polyphenol content is genotype. Of the tested varieties, in Gardena the content of these compounds was on average 23.8% higher. The effect of mineral nitrogen fertilization, chemical protection, the use of biostimulant and intervention irrigation on the tested parameters was also found to be statistically significant. The content of polyphenols was highest after fertilization at a dose of 150 kg N ha ˗1 (Gardena − 3.105 g kg −1 f. m., Denar − 2.357 g kg −1 f. m.) and after full chemical protection combined with dressing tubers using a preparation containing silver nanoparticles (Huwa San TR 50) (Gardena − 2.888 g kg −1 f. m., Denar − 2.480 g kg −1 f. m). Moreover, the combined use of intervention irrigation and the Bioalgen S90 biostimulant was associated with a high content of polyphenolic compounds (Gardena − 3.038 g kg −1 f. m., Denar − 2.400 g kg −1 f. m.) and antioxidant capacity (Gardena − 7.99 mmol Fe 2+ kg −1 f. m., Denar − 7.09 mmol Fe 2+ kg −1 f. m). This study provides a comprehensive assessment of the effects of integrated cultivation technology, including the use of a biostimulant, hydrogel, interventional irrigation, and optimized fertilization and protection methods, on the concentration of health-promoting compounds in Gardena potatoes. The results indicate that Gardena is a Polish-bred, medium-early variety with exceptional agronomic potential for European cultivation.
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Claims 11
Claim · model-written summary
Gardena had 23.8% higher polyphenol content than Denar.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Gardenae0
- Outcome
- content of these compoundse0
- Direction
- highere0
- Value
- 23.8%e0
- Comparator
- Denare1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Of the tested varieties, in Gardena the content of these compounds was on average 23.8% higher.”
e1“Gardena and Denar”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
Nitrogen fertilization, protection, biostimulant and irrigation significantly affected the measured parameters.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- mineral nitrogen fertilization, chemical protection, the use of biostimulant and intervention irrigatione0
- Outcome
- tested parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The effect of mineral nitrogen fertilization, chemical protection, the use of biostimulant and intervention irrigation on the tested parameters was also found to be statistically significant.”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
At 150 kg N ha ˗1, Gardena polyphenols reached 3.105 g kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Gardenae0
- Treatment
- fertilization at a dose of 150 kg N ha ˗1e0
- Outcome
- content of polyphenolse0
- Direction
- higheste0
- Value
- 3.105 g kg −1 f. m.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The content of polyphenols was highest after fertilization at a dose of 150 kg N ha ˗1 (Gardena − 3.105 g kg −1 f. m., Denar − 2.357 g kg −1 f. m.)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
At 150 kg N ha ˗1, Denar polyphenols reached 2.357 g kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Denare0
- Treatment
- fertilization at a dose of 150 kg N ha ˗1e0
- Outcome
- content of polyphenolse0
- Direction
- higheste0
- Value
- 2.357 g kg −1 f. m.e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The content of polyphenols was highest after fertilization at a dose of 150 kg N ha ˗1 (Gardena − 3.105 g kg −1 f. m., Denar − 2.357 g kg −1 f. m.)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
Full chemical protection with silver nanoparticle dressing yielded Gardena polyphenols of 2.888 g kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Gardenae0
- Treatment
- full chemical protection combined with dressing tubers using a preparation containing silver nanoparticles (Huwa San TR 50)e0
- Outcome
- polyphenolse1
- Value
- 2.888 g kg −1 f. m.e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“after full chemical protection combined with dressing tubers using a preparation containing silver nanoparticles (Huwa San TR 50) (Gardena − 2.888 g kg −1 f. m., Denar − 2.480 g kg −1 f. m)”
t0“potato tubers (Solanum tuberosum L.)”
e1“The content of polyphenols was highest”
Claim · model-written summary
The same protection yielded Denar polyphenols of 2.480 g kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Denare0
- Treatment
- full chemical protection combined with dressing tubers using a preparation containing silver nanoparticles (Huwa San TR 50)e0
- Outcome
- polyphenolse1
- Value
- 2.480 g kg −1 f. me0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“after full chemical protection combined with dressing tubers using a preparation containing silver nanoparticles (Huwa San TR 50) (Gardena − 2.888 g kg −1 f. m., Denar − 2.480 g kg −1 f. m)”
t0“potato tubers (Solanum tuberosum L.)”
e1“The content of polyphenols was highest”
Claim · model-written summary
Irrigation with Bioalgen S90 yielded Gardena polyphenols of 3.038 g kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Gardenae0
- Treatment
- combined use of intervention irrigation and the Bioalgen S90 biostimulante0
- Outcome
- content of polyphenolic compoundse0
- Direction
- highe0
- Value
- 3.038 g kg −1 f. m.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combined use of intervention irrigation and the Bioalgen S90 biostimulant was associated with a high content of polyphenolic compounds (Gardena − 3.038 g kg −1 f. m., Denar − 2.400 g kg −1 f. m.)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
Irrigation with Bioalgen S90 yielded Denar polyphenols of 2.400 g kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Denare0
- Treatment
- combined use of intervention irrigation and the Bioalgen S90 biostimulante0
- Outcome
- content of polyphenolic compoundse0
- Direction
- highe0
- Value
- 2.400 g kg −1 f. m.e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the combined use of intervention irrigation and the Bioalgen S90 biostimulant was associated with a high content of polyphenolic compounds (Gardena − 3.038 g kg −1 f. m., Denar − 2.400 g kg −1 f. m.)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
Irrigation with Bioalgen S90 was associated with Gardena antioxidant capacity of 7.99 mmol Fe 2+ kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Gardenae0
- Treatment
- intervention irrigation and the Bioalgen S90 biostimulante1
- Outcome
- antioxidant capacitye0
- Value
- 7.99 mmol Fe 2+ kg −1 f. m.e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“and antioxidant capacity (Gardena − 7.99 mmol Fe 2+ kg −1 f. m., Denar − 7.09 mmol Fe 2+ kg −1 f. m)”
t0“potato tubers (Solanum tuberosum L.)”
e1“the combined use of intervention irrigation and the Bioalgen S90 biostimulant”
Claim · model-written summary
Irrigation with Bioalgen S90 was associated with Denar antioxidant capacity of 7.09 mmol Fe 2+ kg −1 f. m.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Denare0
- Outcome
- antioxidant capacitye0
- Value
- 7.09 mmol Fe 2+ kg −1 f. me0
Not reportedTreatmentDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“and antioxidant capacity (Gardena − 7.99 mmol Fe 2+ kg −1 f. m., Denar − 7.09 mmol Fe 2+ kg −1 f. m)”
t0“potato tubers (Solanum tuberosum L.)”
Claim · model-written summary
Gardena was judged a Polish bred medium early variety with exceptional European cultivation potential.
- Taxon
- potato
Solanum tuberosumt0 - Material
- Gardenae0
- Outcome
- exceptional agronomic potential for European cultivatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Gardena is a Polish-bred, medium-early variety with exceptional agronomic potential for European cultivation.”
t0“potato tubers (Solanum tuberosum L.)”
The same questions in other papers
nitrogen · quality: phytochemicals · Solanum tuberosum (potato)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
1 paper more in this group
See all 5 papers →fertilization · quality: phytochemicals · Solanum tuberosum (potato)Positive and negative results
13 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- negative
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.