Paper · 2018 · European Journal of Horticultural Science

Effects of soil properties and fertilization on quality and biological activity of Swiss chard

A. Topalović; M. Knežević; S. Trifunović; et al.

8
claims
17
verbatim quotes
8
citations
2
research areas
✓
Open access

Abstract

Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable highly consumed in many parts of the world as a very popular ingredient of different diets. The purpose of this study was to evaluate effects of soil properties and fertilization on yield, mineral composition, total phenolics, antioxidant and biological activity of Swiss chard. The mineral composition of Swiss chard was generally affected by soil properties. The fertilization at 50% of recommended level (110 kg ha -1 N, 90 kg ha -1 P 2 O 5 and 100 kg ha -1 K 2 O per season) affected negatively yield and on the other hand affected positively antioxidant activity, while fertilization at 150% of recommended level had a contrary effect. The available K in soil affected the yield positively. Total phenolics were in negative correlation with the yield. The positive relationship of total phenolics and content of Mn in chard was noticed. The greatest efficacy in human colorectal carcinoma cell lines was obtained by Swiss chard extract from plants fertilized at 150% of recommended level.

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Claims 8

Associationobservedoriginal resultmeasured

Claim · model-written summary

Mineral composition of Swiss chard was generally affected by soil properties.

Treatment
soil propertiese1
Outcome
mineral compositione1

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e1

“The mineral composition of Swiss chard was generally affected by soil properties”

✓ located verbatim in the source · abstract, characters 342–422 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Fertilization at 50% of the recommended level reduced yield of Swiss chard.

Treatment
fertilization at 50% of recommended levele2
Outcome
yielde2
Direction
negativelye2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e2

“The fertilization at 50% of recommended level (110 kg ha -1 N, 90 kg ha -1 P 2 O 5 and 100 kg ha -1 K 2 O per season) affected negatively yield”

✓ located verbatim in the source · abstract, characters 424–567 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Fertilization at 50% of the recommended level increased antioxidant activity of Swiss chard.

Treatment
fertilization at 50% of recommended levele2
Outcome
antioxidant activitye3
Direction
positivelye3

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e2

“The fertilization at 50% of recommended level (110 kg ha -1 N, 90 kg ha -1 P 2 O 5 and 100 kg ha -1 K 2 O per season) affected negatively yield”

✓ located verbatim in the source · abstract, characters 424–567 · show in text ↑
e3

“affected positively antioxidant activity”

✓ located verbatim in the source · abstract, characters 590–630 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Fertilization at 150% of the recommended level had an effect on yield of Swiss chard contrary to the 50% level.

Treatment
fertilization at 150% of recommended levele4
Outcome
yielde2
Qualifier
had a contrary effecte4
Comparator
fertilization at 50% of recommended levele2

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e2

“The fertilization at 50% of recommended level (110 kg ha -1 N, 90 kg ha -1 P 2 O 5 and 100 kg ha -1 K 2 O per season) affected negatively yield”

✓ located verbatim in the source · abstract, characters 424–567 · show in text ↑
e4

“fertilization at 150% of recommended level had a contrary effect”

✓ located verbatim in the source · abstract, characters 638–702 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Available K in soil increased yield of Swiss chard.

Treatment
available K in soile5
Outcome
yielde5
Direction
positivelye5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e5

“The available K in soil affected the yield positively”

✓ located verbatim in the source · abstract, characters 704–757 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Total phenolics were negatively correlated with yield of Swiss chard.

Compound
Total phenolicse6
Outcome
yielde6
Direction
negativee6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e6

“Total phenolics were in negative correlation with the yield”

✓ located verbatim in the source · abstract, characters 759–818 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Total phenolics were positively related to the Mn content of chard.

Taxon
charde7
Compound
total phenolicse7
Outcome
content of Mne7
Direction
positivee7

Verbatim

e7

“The positive relationship of total phenolics and content of Mn in chard was noticed”

✓ located verbatim in the source · abstract, characters 820–903 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Swiss chard extract from plants fertilized at 150% of the recommended level showed the greatest efficacy in human colorectal carcinoma cell lines.

Treatment
fertilized at 150% of recommended levele7
Outcome
efficacy in human colorectal carcinoma cell linese7
Direction
greateste7

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Beta vulgaris subsp. vulgaris
Beta vulgaris subsp. vulgaris · TaxonQuadell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Swiss chard (Beta vulgaris L. var. cicla) is a leafy vegetable”

✓ located verbatim in the source · abstract, characters 0–62 · show in text ↑
e7

“The greatest efficacy in human colorectal carcinoma cell lines was obtained by Swiss chard extract from plants fertilized at 150% of recommended level”

✓ located verbatim in the source · abstract, characters 905–1055 · show in text ↑

fertilization · quality: phytochemicals · Beta vulgaris (beet)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

fertilization · yield · Beta vulgaris (beet)Positive and negative results

267 papers: 237 positive, 30 negative or no effect

29 papers in the same direction as this paper · 237 in the opposite direction

  1. negative
  2. positive
  3. positive

263 papers more in this group

See all 267 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.