Abstract
The effect of foliar application of seaweed extracts Bio-algeen S90 (Ascophyllun nodosum) and Kelpak SL (Ecklonia maxina) and humic and fulvic acids from leonardite HumiPlant on plant growth and marketable tuber yield of early potato crop was investigated. The application of seaweed extracts resulted in a faster rate of plant growth. Bio-algeen S90 affected potato growth more than Kelpak SL. The plants grew taller and produced a greater above-ground biomass. With the use of HumiPlant, stems were shorter but had a similar weight to plants in the cultivation without biostimulant. Biostimulants caused enlargement of the assimilation leaf area, but had no effect on the weight of leaves, leaf weight ratio (LWR) or leaf area ratio (LAR). The yield-increasing effect of biostimulants depended on hydrothermal conditions during potato growth. Seaweed extracts produced better results in a warm and a very wet growing season, whereas humic and fulvic acids produced better results in a cool growing season with drought during the tuber growth period.
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Claims 10
Claim · model-written summary
Seaweed extracts accelerated potato plant growth.
- Taxon
- potato
Solanum tuberosume1 - Treatment
- seaweed extractse0
- Outcome
- rate of plant growthe0
- Direction
- fastere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The application of seaweed extracts resulted in a faster rate of plant growth”
e1“Bio-algeen S90 affected potato growth more than Kelpak SL”
Claim · model-written summary
Bio-algeen S90 affected potato growth more than Kelpak SL.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- Bio-algeen S90e0
- Outcome
- potato growthe0
- Direction
- moree0
- Comparator
- Kelpak SLe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Bio-algeen S90 affected potato growth more than Kelpak SL”
Claim · model-written summary
Seaweed extract treated plants grew taller and produced greater above-ground biomass.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- seaweed extractse1
- Outcome
- above-ground biomasse0
- Direction
- greatere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“The plants grew taller and produced a greater above-ground biomass”
e1“The application of seaweed extracts resulted in a faster rate of plant growth”
Claim · model-written summary
HumiPlant produced shorter stems than cultivation without biostimulant.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- HumiPlante0
- Outcome
- stemse0
- Direction
- shortere0
- Comparator
- cultivation without biostimulante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“With the use of HumiPlant, stems were shorter but had a similar weight to plants in the cultivation without biostimulant”
Claim · model-written summary
HumiPlant stems had similar weight to untreated cultivation.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- HumiPlante0
- Outcome
- weighte0
- Direction
- similare0
- Comparator
- cultivation without biostimulante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“With the use of HumiPlant, stems were shorter but had a similar weight to plants in the cultivation without biostimulant”
Claim · model-written summary
Biostimulants enlarged assimilation leaf area.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- Biostimulantse0
- Outcome
- assimilation leaf areae0
- Direction
- enlargemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“Biostimulants caused enlargement of the assimilation leaf area”
Claim · model-written summary
Biostimulants had no effect on leaf weight, LWR or LAR.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- Biostimulantse0
- Outcome
- weight of leaves, leaf weight ratio (LWR) or leaf area ratio (LAR)e0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“Biostimulants caused enlargement of the assimilation leaf area, but had no effect on the weight of leaves, leaf weight ratio (LWR) or leaf area ratio (LAR)”
Claim · model-written summary
The biostimulant yield response depended on hydrothermal conditions.
- Taxon
- potato
Solanum tuberosume0 - Treatment
- biostimulantse0
- Outcome
- yield-increasing effecte0
- Qualifier
- hydrothermal conditionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“yield-increasing effect of biostimulants depended on hydrothermal conditions during potato growth”
Claim · model-written summary
Seaweed extracts performed better in warm, very wet seasons.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- Seaweed extractse0
- Outcome
- better resultse0
- Direction
- bettere0
- Qualifier
- warm and a very wet growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“Seaweed extracts produced better results in a warm and a very wet growing season”
Claim · model-written summary
Humic and fulvic acids performed better in cool drought affected tuber growth seasons.
- Taxon
- POTATO
Solanum tuberosumt0 - Treatment
- humic and fulvic acidse0
- Outcome
- better resultse0
- Direction
- bettere0
- Qualifier
- cool growing season with drought during the tuber growth periode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“POTATO”
e0“humic and fulvic acids produced better results in a cool growing season with drought during the tuber growth period”
The same questions in other papers
other · growth · Solanum tuberosum (potato)Positive and negative results
32 papers in the same direction as this paper · 1 in the opposite direction
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See all 34 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.