Paper · 1976 · Peanut Science

Effect of Calcium and Irrigation Treatments on Peanut Yield, Grade and Seed Quality1

F. R. Cox; G. A. Sullivan; C. K. Martin

12
claims
30
verbatim quotes
41
citations
2
research areas
✓
Open access

Abstract

Abstract The effect of irrigation and/or Ca (calcium) application on yield, grade and seed quality was studied using Florigiant peanuts planted on three dates. Calcium application resulted in a small, but consistent, yield increase at all planting dates. Irrigation resulted in a large yield response on early planted peanuts and no response on late planted ones. Grade, specifically sound mature kernel percentage, was improved by both Ca and irrigation treatments but the effects were only slightly additive. Similar interaction effects were noted as these treatments increased the germination percentage of the seed produced and decreased the percentage of kernels with the form of damage termed dark plumule. Both treatments also decreased the amount of watery hypocotyl damage and increased the Ca concentration in the seed. Germination was 89 to 94% when the seed Ca level was greater than 420 ppm, but fell linearly to 52% when the seed Ca decreased from 420 to 200 ppm.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗

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 12

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium application slightly but consistently increased yield at all planting dates.

Treatment
Calcium applicatione0t0
Outcome
yielde0t0
Direction
increasee0t0
Qualifier
at all planting datese0t0

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

“Calcium application resulted in a small, but consistent, yield increase at all planting dates.”

✓ located verbatim in the source · abstract, characters 160–254 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation produced a large yield response in early planted peanuts.

Treatment
Irrigatione0t0
Outcome
yield responsee0t0
Direction
largee0t0
Qualifier
early planted peanutse0t0

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

“Irrigation resulted in a large yield response on early planted peanuts”

✓ located verbatim in the source · abstract, characters 255–325 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Irrigation produced no yield response in late planted peanuts.

Treatment
Irrigatione0e1t0
Outcome
yield responsee0e1t0
Direction
no responsee0e1t0
Qualifier
late planted onese0e1t0

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

“no response on late planted ones”

✓ located verbatim in the source · abstract, characters 330–362 · show in text ↑
e1

“Irrigation resulted in a large yield response on early planted peanuts and no response on late planted ones.”

✓ located verbatim in the source · abstract, characters 255–363 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium improved sound mature kernel percentage.

Treatment
Cae0t0
Outcome
sound mature kernel percentagee0t0
Direction
improvede0t0

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

“Grade, specifically sound mature kernel percentage, was improved by both Ca and irrigation treatments”

✓ located verbatim in the source · abstract, characters 364–465 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation improved sound mature kernel percentage.

Treatment
irrigation treatmentse0t0
Outcome
sound mature kernel percentagee0t0
Direction
improvede0t0

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

“Grade, specifically sound mature kernel percentage, was improved by both Ca and irrigation treatments”

✓ located verbatim in the source · abstract, characters 364–465 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The effects of calcium and irrigation on grade were only slightly additive.

Outcome
effects were only slightly additivee0t0

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

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

Verbatim

e0

“the effects were only slightly additive”

✓ located verbatim in the source · abstract, characters 470–509 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium and irrigation increased seed germination percentage.

Treatment
both Ca and irrigation treatmentse0e1t0
Outcome
germination percentage of the seed producede0e1t0
Direction
increasede0e1t0

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

“these treatments increased the germination percentage of the seed produced”

✓ located verbatim in the source · abstract, characters 553–627 · show in text ↑
e1

“both Ca and irrigation treatments”

✓ located verbatim in the source · abstract, characters 432–465 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium and irrigation decreased dark plumule damage.

Treatment
both Ca and irrigation treatmentse0e1t0
Outcome
percentage of kernels with the form of damage termed dark plumulee0e1t0
Direction
decreasede0e1t0

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

“decreased the percentage of kernels with the form of damage termed dark plumule”

✓ located verbatim in the source · abstract, characters 632–711 · show in text ↑
e1

“both Ca and irrigation treatments”

✓ located verbatim in the source · abstract, characters 432–465 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Both treatments decreased watery hypocotyl damage.

Treatment
both Ca and irrigation treatmentse0e1t0
Outcome
amount of watery hypocotyl damagee0e1t0
Direction
decreasede0e1t0

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

“Both treatments also decreased the amount of watery hypocotyl damage”

✓ located verbatim in the source · abstract, characters 713–781 · show in text ↑
e1

“both Ca and irrigation treatments”

✓ located verbatim in the source · abstract, characters 432–465 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Both treatments increased seed calcium concentration.

Treatment
both Ca and irrigation treatmentse0e1t0
Outcome
Ca concentration in the seede0e1t0
Direction
increasede0e1t0

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

“Both treatments also decreased the amount of watery hypocotyl damage and increased the Ca concentration in the seed”

✓ located verbatim in the source · abstract, characters 713–828 · show in text ↑
e1

“both Ca and irrigation treatments”

✓ located verbatim in the source · abstract, characters 432–465 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Seed germination was 89 to 94% above a seed calcium level of 420 ppm.

Compound
Cae0t0
Outcome
Germinatione0t0
Value
89 to 94%e0t0
Qualifier
greater than 420 ppme0t0

Not reportedDirection

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

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

Verbatim

e0

“Germination was 89 to 94% when the seed Ca level was greater than 420 ppm”

✓ located verbatim in the source · abstract, characters 830–903 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Germination fell linearly to 52% as seed calcium fell from 420 to 200 ppm.

Compound
Cae0e1t0
Outcome
Germinatione0e1t0
Direction
felle0e1t0
Value
52%e0e1t0
Qualifier
420 to 200 ppme0e1t0

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

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

Verbatim

e0

“fell linearly to 52% when the seed Ca decreased from 420 to 200 ppm”

✓ located verbatim in the source · abstract, characters 909–976 · show in text ↑
e1

“Germination was 89 to 94% when the seed Ca level was greater than 420 ppm, but fell linearly to 52% when the seed Ca decreased from 420 to 200 ppm.”

✓ located verbatim in the source · abstract, characters 830–977 · show in text ↑
t0

“Peanut”

✓ located verbatim in the source · title, characters 47–53 · show in text ↑

calcium atom · yield · Arachis hypogaea (peanut)Results differ

74 papers: 68 positive, 6 negative or no effect

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

  1. no effect
  2. negative
  3. negative

70 papers more in this group

See all 74 papers →

calcium atom · pest · Arachis hypogaea (peanut)Positive and negative results

4 papers: 3 positive, 1 negative or no effect

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

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

calcium atom · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

28 papers: 25 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. no effect

24 papers more in this group

See all 28 papers →

calcium atom · growth · Arachis hypogaea (peanut)Positive and negative results

39 papers: 29 positive, 10 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

35 papers more in this group

See all 39 papers →

irrigation · pest · Arachis hypogaea (peanut)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 →

irrigation · nutrient: content · Arachis hypogaea (peanut)Positive and negative results

17 papers: 13 positive, 4 negative or no effect

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

  1. no effect
  2. negative
  3. negative

13 papers more in this group

See all 17 papers →

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

40 papers: 29 positive, 11 negative or no effect

28 papers in the same direction as this paper · 11 in the opposite direction

  1. negative
  2. negative
  3. negative

36 papers more in this group

See all 40 papers →

irrigation · yield · Arachis hypogaea (peanut)Positive and negative results

191 papers: 168 positive, 23 negative or no effect

167 papers in the same direction as this paper · 22 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

187 papers more in this group

See all 191 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.