Paper · 1987 · Journal of Plant Nutrition

Micronutrients

A. Shiv Raj

10
claims
16
verbatim quotes
20
citations
3
research areas
—
Not open access

Abstract

Abstract Treatment of pigeonpea seed with cobalt nitrate (500 tug kg‐1 seed) increased plant height, number of branches, leaves, total dry matter, and yield. The chlorophyll content, crop growth rate, relative growth rate, and net assimilation rate also increased significantly. Peanut seed treatment with cobalt nitrate (500 mg kg‐1 seed) followed by two foliar sprays before and after flowering (500 mg L‐1 water) increased plant height, leaf number and total dry matter. Pod yield, shelling percentage, test weight and harvest index increased significantly. In both crops nodule number and leghaemoglobin content also increased. Seed inoculation with rhizobium alone was not sufficient to reach maximum yield in both crops grown on the soil tested. Cobalt apparently improves nitrogen fixation by rhizobium, resulting in higher yield.

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Claims 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cobalt nitrate increased pigeonpea height, branches, leaves and dry matter.

Taxon
pigeonpeaCajanus cajane0
Treatment
cobalt nitrate (500 tug kg‐1 seed)e0
Outcome
plant height, number of branches, leaves, total dry mattere0
Direction
increasede0

Not reportedComparator

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

Cajanus cajan
Cajanus cajan · TaxonFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment of pigeonpea seed with cobalt nitrate (500 tug kg‐1 seed) increased plant height, number of branches, leaves, total dry matter, and yield”

✓ located verbatim in the source · abstract, characters 9–156 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cobalt nitrate increased pigeonpea yield.

Taxon
pigeonpeaCajanus cajane0
Treatment
cobalt nitrate (500 tug kg‐1 seed)e0
Outcome
yielde0
Direction
increasede0

Not reportedComparator

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

Cajanus cajan
Cajanus cajan · TaxonFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment of pigeonpea seed with cobalt nitrate (500 tug kg‐1 seed) increased plant height, number of branches, leaves, total dry matter, and yield”

✓ located verbatim in the source · abstract, characters 9–156 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Pigeonpea chlorophyll content, crop growth, relative growth and assimilation rates increased significantly.

Taxon
pigeonpeaCajanus cajane0
Treatment
cobalt nitrate (500 tug kg‐1 seed)e0
Outcome
chlorophyll content, crop growth rate, relative growth rate, and net assimilation ratee0
Direction
increasede0

Not reportedComparator

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

Cajanus cajan
Cajanus cajan · TaxonFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Treatment of pigeonpea seed with cobalt nitrate (500 tug kg‐1 seed) increased plant height, number of branches, leaves, total dry matter, and yield. The chlorophyll content, crop growth rate, relative growth rate, and net assimilation rate also increased significantly”

✓ located verbatim in the source · abstract, characters 9–277 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cobalt treatment increased peanut height, leaf number and dry matter.

Treatment
cobalt nitrate (500 mg kg‐1 seed) followed by two foliar sprays before and after flowering (500 mg L‐1 water)e0
Outcome
plant height, leaf number and total dry mattere0
Direction
increasede0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut seed treatment with cobalt nitrate (500 mg kg‐1 seed) followed by two foliar sprays before and after flowering (500 mg L‐1 water) increased plant height, leaf number and total dry matter”

✓ located verbatim in the source · abstract, characters 279–472 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Peanut pod yield, shelling percentage, test weight and harvest index increased significantly.

Treatment
cobalt nitrate (500 mg kg‐1 seed) followed by two foliar sprays before and after flowering (500 mg L‐1 water)e0
Outcome
Pod yield, shelling percentage, test weight and harvest indexe0
Direction
increasede0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“Peanut seed treatment with cobalt nitrate (500 mg kg‐1 seed) followed by two foliar sprays before and after flowering (500 mg L‐1 water) increased plant height, leaf number and total dry matter. Pod yield, shelling percentage, test weight and harvest index increased significantly”

✓ located verbatim in the source · abstract, characters 279–559 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pigeonpea nodule number and leghaemoglobin content increased.

Taxon
pigeonpeaCajanus cajane1
Treatment
cobalt nitrate (500 tug kg‐1 seed)e1
Outcome
nodule number and leghaemoglobin contente0
Direction
increasede0

Not reportedComparator

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

Cajanus cajan
Cajanus cajan · TaxonFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In both crops nodule number and leghaemoglobin content also increased”

✓ located verbatim in the source · abstract, characters 561–630 · show in text ↑
e1

“Treatment of pigeonpea seed with cobalt nitrate (500 tug kg‐1 seed)”

✓ located verbatim in the source · abstract, characters 9–76 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Peanut nodule number and leghaemoglobin content increased.

Treatment
cobalt nitrate (500 mg kg‐1 seed)e1
Outcome
nodule number and leghaemoglobin contente0
Direction
increasede0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗

Verbatim

e0

“In both crops nodule number and leghaemoglobin content also increased”

✓ located verbatim in the source · abstract, characters 561–630 · show in text ↑
e1

“Peanut seed treatment with cobalt nitrate (500 mg kg‐1 seed)”

✓ located verbatim in the source · abstract, characters 279–339 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Rhizobium inoculation alone did not attain maximum yield in pigeonpea.

Taxon
pigeonpeaCajanus cajane1
Treatment
Seed inoculation with rhizobium alonee0
Interactor
rhizobiumRhizobiume0symbiont
Outcome
maximum yielde0
Direction
not sufficient to reache0

Not reportedComparator

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

Cajanus cajan
Cajanus cajan · TaxonFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed inoculation with rhizobium alone was not sufficient to reach maximum yield in both crops grown on the soil tested”

✓ located verbatim in the source · abstract, characters 632–750 · show in text ↑
e1

“Treatment of pigeonpea seed”

✓ located verbatim in the source · abstract, characters 9–36 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Rhizobium inoculation alone did not attain maximum yield in peanut.

Treatment
Seed inoculation with rhizobium alonee0
Interactor
rhizobiumRhizobiume0symbiont
Outcome
maximum yielde0
Direction
not sufficient to reache0

Not reportedComparator

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

Arachis hypogaea
Arachis hypogaea · Taxon葉子 · CC0 · iNaturalist ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Seed inoculation with rhizobium alone was not sufficient to reach maximum yield in both crops grown on the soil tested”

✓ located verbatim in the source · abstract, characters 632–750 · show in text ↑
e1

“Peanut seed treatment”

✓ located verbatim in the source · abstract, characters 279–300 · show in text ↑
Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Cobalt apparently improved rhizobial nitrogen fixation and yield in both crops.

Taxon
pigeonpeaCajanus cajane1
Treatment
Cobalte0
Interactor
rhizobiumRhizobiume0symbiont
Outcome
higher yielde0
Direction
highere0
Qualifier
nitrogen fixatione0

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

Cajanus cajan
Cajanus cajan · TaxonFilo gèn' · CC BY-SA 4.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Cobalt apparently improves nitrogen fixation by rhizobium, resulting in higher yield”

✓ located verbatim in the source · abstract, characters 752–836 · show in text ↑
e1

“Treatment of pigeonpea seed”

✓ located verbatim in the source · abstract, characters 9–36 · show in text ↑
e2

“Peanut seed treatment”

✓ located verbatim in the source · abstract, characters 279–300 · show in text ↑

inoculation · Rhizobium · Arachis hypogaea (peanut)Results differ

27 papers: 21 positive, 6 negative or no effect

5 papers in the same direction as this paper · 21 in the opposite direction

  1. positive
  2. positive
  3. positive

23 papers more in this group

See all 27 papers →

inoculation · Rhizobium · Cajanus cajan (pigeon pea)Positive and negative results

9 papers: 5 positive, 4 negative or no effect

3 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

stage · growth · Arachis hypogaea (peanut)Positive and negative results

9 papers: 7 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

5 papers more in this group

See all 9 papers →

application · quality: grain · Arachis hypogaea (peanut)Positive and negative results

12 papers: 11 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

application · growth · Arachis hypogaea (peanut)Positive and negative results

68 papers: 62 positive, 6 negative or no effect

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

  1. negative
  2. negative
  3. negative

64 papers more in this group

See all 68 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.