Paper · 2019 · Applied Ecology and Environmental Research

GROWTH AND MARKETABLE POTATO (SOLANUM TUBEROSUM L.) TUBER YIELD IN RESPONSE TO FOLIAR APPLICATION OF SEAWEED EXTRACT AND HUMIC ACIDS

W WADAS

10
claims
19
verbatim quotes
18
citations
1
research areas
✓
Open access

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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extracts accelerated potato plant growth.

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.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The application of seaweed extracts resulted in a faster rate of plant growth”

✓ located verbatim in the source · abstract, characters 257–334 · show in text ↑
e1

“Bio-algeen S90 affected potato growth more than Kelpak SL”

✓ located verbatim in the source · abstract, characters 336–393 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bio-algeen S90 affected potato growth more than Kelpak SL.

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.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Bio-algeen S90 affected potato growth more than Kelpak SL”

✓ located verbatim in the source · abstract, characters 336–393 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extract treated plants grew taller and produced greater above-ground biomass.

Treatment
seaweed extractse1
Outcome
above-ground biomasse0
Direction
greatere0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
e0

“The plants grew taller and produced a greater above-ground biomass”

✓ located verbatim in the source · abstract, characters 395–461 · show in text ↑
e1

“The application of seaweed extracts resulted in a faster rate of plant growth”

✓ located verbatim in the source · abstract, characters 257–334 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

HumiPlant produced shorter stems than cultivation without biostimulant.

Treatment
HumiPlante0
Outcome
stemse0
Direction
shortere0
Comparator
cultivation without biostimulante0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
e0

“With the use of HumiPlant, stems were shorter but had a similar weight to plants in the cultivation without biostimulant”

✓ located verbatim in the source · abstract, characters 463–583 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

HumiPlant stems had similar weight to untreated cultivation.

Treatment
HumiPlante0
Outcome
weighte0
Direction
similare0
Comparator
cultivation without biostimulante0

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
e0

“With the use of HumiPlant, stems were shorter but had a similar weight to plants in the cultivation without biostimulant”

✓ located verbatim in the source · abstract, characters 463–583 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Biostimulants enlarged assimilation leaf area.

Treatment
Biostimulantse0
Outcome
assimilation leaf areae0
Direction
enlargemente0

Not reportedComparator

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
e0

“Biostimulants caused enlargement of the assimilation leaf area”

✓ located verbatim in the source · abstract, characters 585–647 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Biostimulants had no effect on leaf weight, LWR or LAR.

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.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
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)”

✓ located verbatim in the source · abstract, characters 585–740 · show in text ↑
Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

The biostimulant yield response depended on hydrothermal conditions.

Treatment
biostimulantse0
Outcome
yield-increasing effecte0
Qualifier
hydrothermal conditionse0

Not reportedDirection

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“yield-increasing effect of biostimulants depended on hydrothermal conditions during potato growth”

✓ located verbatim in the source · abstract, characters 746–843 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed extracts performed better in warm, very wet seasons.

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.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
e0

“Seaweed extracts produced better results in a warm and a very wet growing season”

✓ located verbatim in the source · abstract, characters 845–925 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Humic and fulvic acids performed better in cool drought affected tuber growth seasons.

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.

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

t0

“POTATO”

✓ located verbatim in the source · title, characters 22–28 · show in text ↑
e0

“humic and fulvic acids produced better results in a cool growing season with drought during the tuber growth period”

✓ located verbatim in the source · abstract, characters 935–1050 · show in text ↑

other · growth · Solanum tuberosum (potato)Positive and negative results

34 papers: 33 positive, 1 negative or no effect

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

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  2. positive
  3. negative

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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.