Paper · 2014 · International Journal of Farm Sciences

Effect of seaweed extract on growth and yield of onion

BS Dogra; Rakesh K. Mandradia

6
claims
12
verbatim quotes
28
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted during the Rabi season of 2009 to study the effects of soil applications of different concentrations of seaweed extract (prepared from Ascophyllum nodosum) on growth, yield and downy mildew severity of onion. The seaweed granules were applied as the basal dose (1.5, 2.0, 2.5, 3.0 and 3.5 g/m2). The soil application of seaweed extract significantly enhanced plant growth and yield. The highest yield was recorded with application of 2.5g/m2 followed by 3.0g/m2 that resulted in 120.8 per cent and 102.5 per cent increases respectively compared to control. The maximum increase in shoot height and number of shoots per plant and lowest disease severity were achieved with 2.5 g/m2 seaweed extract application. Thus, under sub–tropical, low hill conditions of Himachal Pradesh, soil application of seaweed extract could be a promising option for yield enhancement in onion.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 6

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Seaweed extract significantly enhanced growth and yield.

Taxon
onionAllium cepat0
Treatment
soil application of seaweed extracte0
Outcome
plant growth and yielde0
Direction
enhancede0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The soil application of seaweed extract significantly enhanced plant growth and yield.”

✓ located verbatim in the source · abstract, characters 329–415 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 2.5g/m2 application increased yield 120.8 per cent versus control.

Taxon
onionAllium cepat0
Treatment
2.5g/m2e0
Outcome
increasese0
Direction
increasese0
Value
120.8 per cente0
Comparator
controle0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of 2.5g/m2 followed by 3.0g/m2 that resulted in 120.8 per cent and 102.5 per cent increases respectively compared to control.”

✓ located verbatim in the source · abstract, characters 452–589 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 3.0g/m2 application increased yield 102.5 per cent versus control.

Taxon
onionAllium cepat0
Treatment
3.0g/m2e0
Outcome
increasese0
Direction
increasese0
Value
102.5 per cente0
Comparator
controle0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of 2.5g/m2 followed by 3.0g/m2 that resulted in 120.8 per cent and 102.5 per cent increases respectively compared to control.”

✓ located verbatim in the source · abstract, characters 452–589 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2.5 g/m2 application produced maximum gains in shoot height and shoots per plant.

Taxon
onionAllium cepat0
Treatment
2.5 g/m2 seaweed extract applicatione0
Outcome
shoot height and number of shoots per plante0
Direction
maximum increasee0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum increase in shoot height and number of shoots per plant and lowest disease severity were achieved with 2.5 g/m2 seaweed extract application.”

✓ located verbatim in the source · abstract, characters 590–742 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 2.5 g/m2 application produced the lowest disease severity.

Taxon
onionAllium cepat0
Treatment
2.5 g/m2 seaweed extract applicatione0
Interactor
downy mildewPeronosporaceaee1pathogen
Outcome
disease severitye0
Direction
loweste0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The maximum increase in shoot height and number of shoots per plant and lowest disease severity were achieved with 2.5 g/m2 seaweed extract application.”

✓ located verbatim in the source · abstract, characters 590–742 · show in text ↑
e1

“downy mildew severity of onion”

✓ located verbatim in the source · abstract, characters 210–240 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 49–54 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The authors propose soil-applied seaweed extract to enhance onion yield in Himachal Pradesh.

Taxon
onionAllium cepae0
Outcome
soil application of seaweed extracte0
Setting
Himachal Pradeshe0

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Thus, under sub–tropical, low hill conditions of Himachal Pradesh, soil application of seaweed extract could be a promising option for yield enhancement in onion.”

✓ located verbatim in the source · abstract, characters 743–905 · show in text ↑

other · growth · Allium cepa (onion)Positive and negative results

38 papers: 33 positive, 5 negative or no effect

32 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

34 papers more in this group

See all 38 papers →

other · yield · Allium cepa (onion)Positive and negative results

48 papers: 44 positive, 4 negative or no effect

43 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. no effect

44 papers more in this group

See all 48 papers →

application · yield · Allium cepa (onion)Positive and negative results

131 papers: 121 positive, 10 negative or no effect

120 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. no effect
  3. negative
    Foliar boron decreased yields in onions.

    The Contribution of Foliar Exposure to Boron Toxicity · 2007 · compared with without a component of foliar contact

    Opposite direction

127 papers more in this group

See all 131 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.