Paper · 2014 · African Journal of Agricultural Research

Response of biofertilizers and homo-brassinolide on growth, yield and oil content of sunflower (Helianthus annuus L.)

A. K. Bera; K. Pramanik; Biswapati Mandal

6
claims
12
verbatim quotes
14
citations
3
research areas
✓
Open access

Abstract

Sunflower is an important oil crop in India. The present study aims to find out the response of biofertilizers and homo-brassinolide on growth, yield and oil content of sunflower (Helianthus annuus L.). The results showed that inoculation of biofertilizers significantly affected plant height, total chlorophyll content and also significantly increased yield attributes viz., thalamus diameter, weight of thalamus, filled seeds capitulum-1 and 1000 seed weight as well as seed yield, biological yield and oil content. The combined inoculation of Phosphate solubilizing bacteria (PSB) + Vesicular-arbuscular mycorrhizal (VAM) + Azotobacter recorded higher seed yield (3189 and 3263 kg ha-1) over Azotobacter (1866 and 2073 kg ha-1), PSB + Azotobacter (2269 and 2421 kg ha-1) and VAM + Azotobacter inoculation (2545 and 2752 kg ha-1) respectively, during the both years. Twice sprayings of homo-brassinolide at budding + flowering stages significantly recorded higher value of plant height, total chlorophyll content and yield parameters as compared to brassinolide spraying at budding stage alone. The maximum seed yield (2760 and 2917 kg ha-1) was obtained from crop receiving both spraying of homo-brassinolide at budding + flowering stages over only one spraying at budding stage (2171 and 2337 kg ha-1) respectively, during 2010-2011 and 2011-2012. Key words: Azotobacter, brassinolide, phosphate solubilizing bacteria (PSB), Sunflower, vesicular-arbuscular mycorrhizal (VAM).

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Claims 6

Intervention effectobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Biofertilizer inoculation significantly affected sunflower plant height and chlorophyll content.

Taxon
sunflowerHelianthus annuust0
Treatment
inoculation of biofertilizerse0
Outcome
plant height, total chlorophyll contente0
Direction
affectede0

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

“inoculation of biofertilizers significantly affected plant height, total chlorophyll content”

✓ located verbatim in the source · abstract, characters 227–319 · show in text ↑
t0

“sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · title, characters 85–117 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biofertilizer inoculation significantly increased sunflower yield attributes.

Taxon
sunflowerHelianthus annuust0
Treatment
inoculation of biofertilizerse0
Outcome
thalamus diameter, weight of thalamus, filled seeds capitulum-1 and 1000 seed weighte0
Direction
increasede0

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

“inoculation of biofertilizers significantly affected plant height, total chlorophyll content and also significantly increased yield attributes viz., thalamus diameter, weight of thalamus, filled seeds capitulum-1 and 1000 seed weight”

✓ located verbatim in the source · abstract, characters 227–460 · show in text ↑
t0

“sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · title, characters 85–117 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Biofertilizer inoculation significantly increased sunflower seed and biological yield and oil content.

Taxon
sunflowerHelianthus annuust0
Treatment
inoculation of biofertilizerse0
Outcome
seed yield, biological yield and oil contente0
Direction
increasede0

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

“inoculation of biofertilizers significantly affected plant height, total chlorophyll content and also significantly increased yield attributes viz., thalamus diameter, weight of thalamus, filled seeds capitulum-1 and 1000 seed weight as well as seed yield, biological yield and oil content”

✓ located verbatim in the source · abstract, characters 227–516 · show in text ↑
t0

“sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · title, characters 85–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Combined PSB, VAM and Azotobacter inoculation produced higher sunflower seed yield than the listed alternative inoculations in both years.

Taxon
sunflowerHelianthus annuust0
Treatment
combined inoculation of Phosphate solubilizing bacteria (PSB) + Vesicular-arbuscular mycorrhizal (VAM) + Azotobactere0
Outcome
seed yielde0
Direction
highere0
Value
3189 and 3263 kg ha-1e0
Comparator
Azotobactere0

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

“The combined inoculation of Phosphate solubilizing bacteria (PSB) + Vesicular-arbuscular mycorrhizal (VAM) + Azotobacter recorded higher seed yield (3189 and 3263 kg ha-1) over Azotobacter (1866 and 2073 kg ha-1), PSB + Azotobacter (2269 and 2421 kg ha-1) and VAM + Azotobacter inoculation (2545 and 2752 kg ha-1) respectively, during the both years.”

✓ located verbatim in the source · abstract, characters 518–868 · show in text ↑
t0

“sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · title, characters 85–117 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Twice spraying homo-brassinolide at budding and flowering significantly increased sunflower height, chlorophyll content and yield parameters against spraying at budding alone.

Taxon
sunflowerHelianthus annuust0
Treatment
Twice sprayings of homo-brassinolide at budding + flowering stagese0
Outcome
plant height, total chlorophyll content and yield parameterse0
Direction
highere0
Comparator
brassinolide spraying at budding stage alonee0

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

“Twice sprayings of homo-brassinolide at budding + flowering stages significantly recorded higher value of plant height, total chlorophyll content and yield parameters as compared to brassinolide spraying at budding stage alone.”

✓ located verbatim in the source · abstract, characters 869–1096 · show in text ↑
t0

“sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · title, characters 85–117 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Twice spraying homo-brassinolide yielded 2760 and 2917 kg ha-1 of sunflower seed compared with 2171 and 2337 kg ha-1 after one budding-stage spray.

Taxon
sunflowerHelianthus annuust0
Treatment
both spraying of homo-brassinolide at budding + flowering stagese0
Outcome
seed yielde0
Direction
maximume0
Value
2760 and 2917 kg ha-1e0
Qualifier
2171 and 2337 kg ha-1e0
Comparator
only one spraying at budding stagee0

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

“The maximum seed yield (2760 and 2917 kg ha-1) was obtained from crop receiving both spraying of homo-brassinolide at budding + flowering stages over only one spraying at budding stage (2171 and 2337 kg ha-1) respectively, during 2010-2011 and 2011-2012.”

✓ located verbatim in the source · abstract, characters 1097–1351 · show in text ↑
t0

“sunflower (Helianthus annuus L.)”

✓ located verbatim in the source · title, characters 85–117 · show in text ↑

Azotobacter · yield · Helianthus annuus (common sunflower)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

phosphorus · yield · Helianthus annuus (common sunflower)Results differ

81 papers: 79 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

77 papers more in this group

See all 81 papers →

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

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

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

stage · yield · Helianthus annuus (common sunflower)Positive and negative results

19 papers: 9 positive, 10 negative or no effect

8 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

15 papers more in this group

See all 19 papers →

inoculation · quality: oil · Helianthus annuus (common sunflower)Positive and negative results

19 papers: 18 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

15 papers more in this group

See all 19 papers →

application · 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. negative
  2. no effect
  3. positive

18 papers more in this group

See all 22 papers →

inoculation · yield · Helianthus annuus (common sunflower)Positive and negative results

55 papers: 48 positive, 7 negative or no effect

47 papers in the same direction as this paper · 5 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

51 papers more in this group

See all 55 papers →

application · yield · Helianthus annuus (common sunflower)Positive and negative results

158 papers: 152 positive, 6 negative or no effect

151 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

154 papers more in this group

See all 158 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.