Abstract
Brassica crops are rich is phytochemical compounds and frequent consumption of these vegetables has been associated with a lower risk in cancer, heart disease, hypertension and stroke. The effect of three commercial extracts of the brown seaweed, Ascophyllum nodosum, on phytochemical content and yield in cabbage plants was tested under field conditions in two consecutive crops. Total phenolic content was higher in all seaweed treated plants, with the highest increase recorded with AlgaeGreenTM (3.5 l ha-1) with a 2 fold increase relative to the control. The other commercial seaweed extract, XT achieved a lower increases of 1.3 fold (3.5 l ha-1). Similar increases were recorded in total flavonoid content. No statistically significant increases in yield were recorded with any of the seaweed extracts tested. The results suggest that seaweed extracts stimulated an increased accumulation of phytochemicals in cabbage but had no significant effect in yield under these experimental conditions.
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Claims 5
Claim · model-written summary
Seaweed-treated cabbage had higher total phenolic content.
- Taxon
- cabbage
Brassica oleracea var. capitatat0 - Treatment
- seaweed treatede0
- Outcome
- Total phenolic contente0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total phenolic content was higher in all seaweed treated plants”
t0“cabbage”
Claim · model-written summary
AlgaeGreenTM at 3.5 l ha-1 gave a twofold increase in cabbage phenolic content relative to control.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- AlgaeGreenTM (3.5 l ha-1)e0
- Outcome
- Total phenolic contente1
- Direction
- increasee0
- Value
- 2 folde0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest increase recorded with AlgaeGreenTM (3.5 l ha-1) with a 2 fold increase relative to the control”
e1“Total phenolic content was higher”
t0“cabbage”
Claim · model-written summary
XT at 3.5 l ha-1 gave a 1.3 fold increase in cabbage phenolic content.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- XTe0
- Outcome
- Total phenolic contente1
- Direction
- increasese0
- Value
- 1.3 folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“XT achieved a lower increases of 1.3 fold (3.5 l ha-1)”
e1“Total phenolic content was higher”
t0“cabbage”
Claim · model-written summary
Seaweed extracts similarly increased cabbage total flavonoid content.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- seaweed treatede1
- Outcome
- total flavonoid contente0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Similar increases were recorded in total flavonoid content”
e1“all seaweed treated plants”
t0“cabbage”
Claim · model-written summary
Seaweed extracts did not significantly increase cabbage yield.
- Taxon
- cabbageBrassica oleracea var. capitatat0
- Treatment
- seaweed extractse0
- Outcome
- yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No statistically significant increases in yield were recorded with any of the seaweed extracts tested”
t0“cabbage”
The same questions in other papers
other · yield · Brassica oleracea (wild cabbage)Results differ
3 papers in the same direction as this paper · 33 in the opposite direction
- no effect
- positive
- positive
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See all 37 papers →other · quality: phytochemicals · Brassica oleracea (wild cabbage)Results agree
13 papers in the same direction as this paper
- positive
- positive
- positive
10 papers more in this group
See all 14 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.