Paper · 2012

Influence of Cobalt and Mycorrhizae Mediated Phosphorus on Some Higher Plants Growth and Yield

Nadia Gad; Hala Kandil

9
claims
18
verbatim quotes
5
citations
3
research areas
—
Not open access

Abstract

Two pot experiments were conducted to assess the effect of cobalt and mycorrhizae (Gigaspora gigantean) mediated phosphorus on the growth and yield of corn as monocots and soybean as dicots. Experiments were carried out at Wire house in National Research Centre, Egypt. Plastic pots (40 cm diameter) filled with silty clay soil and inoculated with mycorrhizae fungi before seeds sowing and fertilized by calcium mono phosphate at 50, 100 and 200 mg P/Kg soil. The seedlings (at the third truly leaf) were irrigated with cobalt sulphate once, with 0, 4, 8, 10, 12, 16 and 20 ppm cobalt. The obtained results can be summarized as follows: The growth of both corn and soybean plants, inoculated with low phosphorus level were significantly increased compared other levels.  The mycorrhizae colonies decreased as P increased while cobalt is not significant.  Cobalt at 10 ppm with mycorhizae had a significant promotive effect on growth, yield minerals composition and chemical content of corn compared with mycorrhizae alone.  Cobalt at 12 ppm with mycorrhizae gave a similar effect of soybean.  Phosphorus content of plants was nearly doubled in mycorrhizae and cobalt compared with mycorrhizae alone. It can be concluded that the cobalt with mycorrhizae inoculation under low phosphorus level enhanced the growth, yield quantity and quality in both corn and soybean, but this positive impact was more significant in the dicot plants compared to monocot.

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Claims 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Low phosphorus increased growth of mycorrhiza-inoculated corn relative to other phosphorus levels.

Treatment
low phosphorus levele0
Interactor
Gigaspora giganteane1symbiont
Outcome
growthe0
Direction
increasede0
Comparator
other levelse0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The growth of both corn and soybean plants, inoculated with low phosphorus level were significantly increased compared other levels”

✓ located verbatim in the source · abstract, characters 638–769 · show in text ↑
e1

“mycorrhizae (Gigaspora gigantean)”

✓ located verbatim in the source · abstract, characters 70–103 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Low phosphorus increased growth of mycorrhiza-inoculated soybean relative to other phosphorus levels.

Taxon
soybeanGlycine maxe0
Treatment
low phosphorus levele0
Interactor
Gigaspora giganteane1symbiont
Outcome
growthe0
Direction
increasede0
Comparator
other levelse0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“The growth of both corn and soybean plants, inoculated with low phosphorus level were significantly increased compared other levels”

✓ located verbatim in the source · abstract, characters 638–769 · show in text ↑
e1

“mycorrhizae (Gigaspora gigantean)”

✓ located verbatim in the source · abstract, characters 70–103 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Mycorrhizal colonies decreased as phosphorus increased.

Treatment
Pe0
Outcome
mycorrhizae coloniese0
Direction
decreasede0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The mycorrhizae colonies decreased as P increased”

✓ located verbatim in the source · abstract, characters 773–822 · show in text ↑
e1

“The growth of both corn and soybean plants, inoculated with low phosphorus level were significantly increased compared other levels”

✓ located verbatim in the source · abstract, characters 638–769 · show in text ↑
Associationobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Cobalt had no significant association with mycorrhizal colonies.

Treatment
cobalte0
Outcome
mycorrhizae coloniese0

Not reportedDirection

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“mycorrhizae colonies decreased as P increased while cobalt is not significant”

✓ located verbatim in the source · abstract, characters 777–854 · show in text ↑
e1

“The growth of both corn and soybean plants, inoculated with low phosphorus level were significantly increased compared other levels”

✓ located verbatim in the source · abstract, characters 638–769 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At 10 ppm, cobalt with mycorrhizae promoted corn growth and yield relative to mycorrhizae alone.

Treatment
Cobalt at 10 ppm with mycorhizaee0
Interactor
Gigaspora giganteane1symbiont
Outcome
growth, yielde0
Direction
promotivee0
Comparator
mycorrhizae alonee0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Cobalt at 10 ppm with mycorhizae had a significant promotive effect on growth, yield minerals composition and chemical content of corn compared with mycorrhizae alone”

✓ located verbatim in the source · abstract, characters 858–1024 · show in text ↑
e1

“mycorrhizae (Gigaspora gigantean)”

✓ located verbatim in the source · abstract, characters 70–103 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At 10 ppm, cobalt with mycorrhizae promoted corn mineral composition and chemical content relative to mycorrhizae alone.

Treatment
Cobalt at 10 ppm with mycorhizaee0
Interactor
Gigaspora giganteane1symbiont
Outcome
minerals composition and chemical contente0
Direction
promotivee0
Comparator
mycorrhizae alonee0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Cobalt at 10 ppm with mycorhizae had a significant promotive effect on growth, yield minerals composition and chemical content of corn compared with mycorrhizae alone”

✓ located verbatim in the source · abstract, characters 858–1024 · show in text ↑
e1

“mycorrhizae (Gigaspora gigantean)”

✓ located verbatim in the source · abstract, characters 70–103 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 12 ppm, cobalt with mycorrhizae had a similar promotive effect on soybean.

Taxon
soybeanGlycine maxe0
Treatment
Cobalt at 12 ppm with mycorrhizaee0
Outcome
similar effecte0
Comparator
mycorrhizae alonee1

Not reportedDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Cobalt at 12 ppm with mycorrhizae gave a similar effect of soybean”

✓ located verbatim in the source · abstract, characters 1028–1094 · show in text ↑
e1

“Cobalt at 10 ppm with mycorhizae had a significant promotive effect on growth, yield minerals composition and chemical content of corn compared with mycorrhizae alone”

✓ located verbatim in the source · abstract, characters 858–1024 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Phosphorus content was nearly doubled with mycorrhizae and cobalt compared with mycorrhizae alone.

Treatment
mycorrhizae and cobalte0
Outcome
Phosphorus contente0
Direction
doublede0
Value
nearly doublede0
Comparator
mycorrhizae alonee0

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Phosphorus content of plants was nearly doubled in mycorrhizae and cobalt compared with mycorrhizae alone”

✓ located verbatim in the source · abstract, characters 1098–1203 · show in text ↑
e1

“growth and yield of corn as monocots and soybean as dicots”

✓ located verbatim in the source · abstract, characters 131–189 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The beneficial impact was more significant in soybean than corn.

Taxon
soybeanGlycine maxe1
Outcome
positive impacte0
Direction
more significante0
Comparator
monocote0

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“positive impact was more significant in the dicot plants compared to monocot”

✓ located verbatim in the source · abstract, characters 1380–1456 · show in text ↑
e1

“corn as monocots and soybean as dicots”

✓ located verbatim in the source · abstract, characters 151–189 · show in text ↑

cobalt atom · nutrient: content · Zea mays (maize)Positive and negative results

6 papers: 5 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

cobalt atom · yield · Zea mays (maize)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

mycorrhiza · nutrient: content · Zea mays (maize)Positive and negative results

122 papers: 116 positive, 6 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

118 papers more in this group

See all 122 papers →

phosphorus · growth · Glycine max (soybean)Positive and negative results

146 papers: 117 positive, 29 negative or no effect

116 papers in the same direction as this paper · 28 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

142 papers more in this group

See all 146 papers →

phosphorus · growth · Zea mays (maize)Positive and negative results

306 papers: 252 positive, 54 negative or no effect

251 papers in the same direction as this paper · 51 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

302 papers more in this group

See all 306 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.