Paper · 2010 · Oriental Journal Of Chemistry

The potential of seaweed liquid fertilizer on the growth and antioxidant enhancement of Helianthus annuus L.

N. Akila; T. Jeyadoss

8
claims
19
verbatim quotes
23
citations
2
research areas
—
Not open access

Abstract

A field experiment was carried out during the chithiraipattam (April-May) in India in 2010 to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L. to explore the possibilities of reducing or avoiding chemical fertilizers and to obtain the highest growth and productive parameters. The foliar spray was given twice in 15days interval at two concentrations (2.5%, 5.0%) of SLF. The aqueous extract of Sargassum wightii was found to promote almost all the parameters such as shoot length, root length, leaf length, leaf breadth, fresh weight, dry weight and number of leaves. The biochemical contents such as chlorophyll a, b, total chlorophyll, carotenoids, carbohydrate, total phenols and antioxidant enzymes such as catalase, peroxidase and glutathione peroxidase (GPX) were also found to be higher in the leaves. Among the two concentrations 2.5% was found to produce better results in almost all the parameters. The results revealed that foliar application of seaweed extract could be a promising option for pollution free non toxic growth enhancement of Helianthus annuus L.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed liquid fertilizer promoted shoot length, root length and leaf length of sunflower.

Taxon
Helianthus annuus L.Helianthus annuuse1
Treatment
seaweed liquid fertilizer (SLF) of Sargassum wightiie1
Outcome
shoot length, root length, leaf lengthe2
Direction
promotee2
Setting
field experimente0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“A field experiment was carried out during the chithiraipattam (April-May) in India in 2010”

✓ located verbatim in the source · abstract, characters 0–90 · show in text ↑
e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e2

“The aqueous extract of Sargassum wightii was found to promote almost all the parameters such as shoot length, root length, leaf length, leaf breadth, fresh weight, dry weight and number of leaves”

✓ located verbatim in the source · abstract, characters 532–727 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed liquid fertilizer promoted leaf breadth, fresh weight and dry weight of sunflower.

Taxon
Helianthus annuus L.Helianthus annuuse1
Treatment
seaweed liquid fertilizer (SLF) of Sargassum wightiie1
Outcome
leaf breadth, fresh weight, dry weighte2
Direction
promotee2
Setting
field experimente0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“A field experiment was carried out during the chithiraipattam (April-May) in India in 2010”

✓ located verbatim in the source · abstract, characters 0–90 · show in text ↑
e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e2

“The aqueous extract of Sargassum wightii was found to promote almost all the parameters such as shoot length, root length, leaf length, leaf breadth, fresh weight, dry weight and number of leaves”

✓ located verbatim in the source · abstract, characters 532–727 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seaweed liquid fertilizer promoted the number of leaves of sunflower.

Taxon
Helianthus annuus L.Helianthus annuuse1
Treatment
seaweed liquid fertilizer (SLF) of Sargassum wightiie1
Outcome
number of leavese2
Direction
promotee2
Setting
field experimente0

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e0

“A field experiment was carried out during the chithiraipattam (April-May) in India in 2010”

✓ located verbatim in the source · abstract, characters 0–90 · show in text ↑
e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e2

“The aqueous extract of Sargassum wightii was found to promote almost all the parameters such as shoot length, root length, leaf length, leaf breadth, fresh weight, dry weight and number of leaves”

✓ located verbatim in the source · abstract, characters 532–727 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chlorophyll a, chlorophyll b and total chlorophyll were higher in the leaves of sunflower under seaweed liquid fertilizer.

Taxon
Helianthus annuus L.Helianthus annuuse1
Organ / stage
leavese3
Treatment
seaweed liquid fertilizer (SLF) of Sargassum wightiie1
Outcome
chlorophyll a, b, total chlorophylle3
Direction
highere3

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e3

“The biochemical contents such as chlorophyll a, b, total chlorophyll, carotenoids, carbohydrate, total phenols and antioxidant enzymes such as catalase, peroxidase and glutathione peroxidase (GPX) were also found to be higher in the leaves”

✓ located verbatim in the source · abstract, characters 729–968 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Carotenoids, carbohydrate and total phenols were higher in the leaves of sunflower under seaweed liquid fertilizer.

Taxon
Helianthus annuus L.Helianthus annuuse1
Organ / stage
leavese3
Treatment
seaweed liquid fertilizer (SLF) of Sargassum wightiie1
Outcome
carotenoids, carbohydrate, total phenolse3
Direction
highere3

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e3

“The biochemical contents such as chlorophyll a, b, total chlorophyll, carotenoids, carbohydrate, total phenols and antioxidant enzymes such as catalase, peroxidase and glutathione peroxidase (GPX) were also found to be higher in the leaves”

✓ located verbatim in the source · abstract, characters 729–968 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Catalase, peroxidase and glutathione peroxidase activities were higher in the leaves of sunflower under seaweed liquid fertilizer.

Taxon
Helianthus annuus L.Helianthus annuuse1
Organ / stage
leavese3
Treatment
seaweed liquid fertilizer (SLF) of Sargassum wightiie1
Outcome
catalase, peroxidase and glutathione peroxidase (GPX)e3
Direction
highere3

Not reportedComparator

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e3

“The biochemical contents such as chlorophyll a, b, total chlorophyll, carotenoids, carbohydrate, total phenols and antioxidant enzymes such as catalase, peroxidase and glutathione peroxidase (GPX) were also found to be higher in the leaves”

✓ located verbatim in the source · abstract, characters 729–968 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sunflower at 2.5% seaweed liquid fertilizer gave better results than at 5.0% in almost all parameters.

Taxon
Helianthus annuus L.Helianthus annuuse1
Treatment
2.5%e4
Outcome
almost all the parameterse4
Direction
bettere4
Comparator
5.0%e5

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e1

“to study the effects of foliar applications of different concentrations of seaweed liquid fertilizer (SLF) of Sargassum wightii on growth, biochemical constituents and antioxidant enzymes of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 91–302 · show in text ↑
e4

“Among the two concentrations 2.5% was found to produce better results in almost all the parameters”

✓ located verbatim in the source · abstract, characters 970–1068 · show in text ↑
e5

“The foliar spray was given twice in 15days interval at two concentrations (2.5%, 5.0%) of SLF”

✓ located verbatim in the source · abstract, characters 437–530 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Foliar application of seaweed extract could be a promising option for growth enhancement of sunflower.

Taxon
Helianthus annuus L.Helianthus annuuse6
Treatment
foliar application of seaweed extracte6
Outcome
growth enhancemente6

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

Helianthus annuus
Helianthus annuus · TaxonJon Sullivan · Public domain · Wikimedia Commons ↗

Verbatim

e6

“The results revealed that foliar application of seaweed extract could be a promising option for pollution free non toxic growth enhancement of Helianthus annuus L.”

✓ located verbatim in the source · abstract, characters 1070–1233 · show in text ↑

other · growth · Helianthus annuus (common sunflower)Positive and negative results

20 papers: 17 positive, 3 negative or no effect

16 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. negative

16 papers more in this group

See all 20 papers →

fertilization · physiology: pigments · Helianthus annuus (common sunflower)Positive and negative results

22 papers: 20 positive, 2 negative or no effect

19 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

18 papers more in this group

See all 22 papers →

fertilization · growth · Helianthus annuus (common sunflower)Positive and negative results

146 papers: 134 positive, 12 negative or no effect

133 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

142 papers more in this group

See all 146 papers →

other · physiology: antioxidant enzymes · Helianthus annuus (common sunflower)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

fertilization · physiology: antioxidant enzymes · Helianthus annuus (common sunflower)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

other · physiology: pigments · Helianthus annuus (common sunflower)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 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.