Paper · 2004 · Journal of Plant Production

EFFECT OF SOME AGRICULTURAL TREATMENTS ON SEED PRODUCTION AND QUALITY OF COWPEA

F. EI-Assiouty,

19
claims
37
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by

Abstract

Tow field trials were conducted at Vegetable Research Farm of Horticultural Research Institute, Kaha, Kaluobia Governorate during two successive summer seasons of 2001 and 2002 to study the effect of plant spacing (10, 20 and 30 cm) and foliar application with potassium (0, 1, 2, 3 cm/l) on growth, seed yield and quality of cowpea cultivars i.e. Kafr EI-Sheikh (1) and Kaha (1). Obtained results could be summarized as follow: 1- Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv. in all measurement growth characters, i.e. plant height, number of branches and leaves, leaf area, fresh and dry weight of plants, also in seed yield and its components expressed as number and weight of pods, number of seeds per pod, 100-seed weight (seed index), seed yield per plant and per feddan, produced 35.2 and 39.6% seed yield more than the other cultivar in the two seasons, respectively and gave the highest values of germination (%), seedling length and protein (%) in dry seed. 2- All vegetative growth traits recorded higher values in wider spacing 20 or 30 cm except plant height which was maximum under closer spacing (10 ern). Also, all seed yield components characters were enhanced with increasing plant spacing except seed yieldlfeddan which was maximum under narrow spacing, as well as, seed quality characters except germination speed recorded higher values under wider spacing compared to closer spacing. 3- Spraying cowpea plants with potassium increased plant growth characters, seed yield and its components, germination percentage. seedling length and protein (%) in seed. Using potassium at (2 cm/l) was the most effective treatment for all studied characters. 4- Interaction effect of cultivars, plant spacing and potassium were differed for all studied characteristics. In general, it may be recommended to grow the used cultivars under closer spacing (10 ern) and spraying plants with foliar application of potassium at (2 cm/l) to obtain the highest seed yieldlfeddan as well as seed quality ..

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Claims 19

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) exceeded Kaha (1) for vegetative growth characters.

Material
Kafr EI-Sheikh (1)e0
Outcome
plant height, number of branches and leaves, leaf areae0
Direction
surpassede0
Comparator
Kaha (1)e0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv. in all measurement growth characters, i.e. plant height, number of branches and leaves, leaf area, fresh and dry weight of plants”

✓ located verbatim in the source · abstract, characters 432–607 · show in text ↑
e1

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) exceeded Kaha (1) in plant fresh and dry weight.

Material
Kafr EI-Sheikh (1)e0
Outcome
fresh and dry weight of plantse0
Direction
surpassede0
Comparator
Kaha (1)e0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv. in all measurement growth characters, i.e. plant height, number of branches and leaves, leaf area, fresh and dry weight of plants”

✓ located verbatim in the source · abstract, characters 432–607 · show in text ↑
e1

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) exceeded Kaha (1) in pod number, pod weight, and seeds per pod.

Material
Kafr EI-Sheikh (1)e0
Outcome
number and weight of pods, number of seeds per pode0
Direction
surpassede0
Comparator
Kaha (1)e0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv. in all measurement growth characters, i.e. plant height, number of branches and leaves, leaf area, fresh and dry weight of plants, also in seed yield and its components expressed as number and weight of pods, number of seeds per pod, 100-seed weight (seed index), seed yield per plant and per feddan”

✓ located verbatim in the source · abstract, characters 432–777 · show in text ↑
e1

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) exceeded Kaha (1) in 100-seed weight and seed yield per plant.

Material
Kafr EI-Sheikh (1)e0
Outcome
100-seed weight (seed index), seed yield per plante0
Direction
surpassede0
Comparator
Kaha (1)e0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv. in all measurement growth characters, i.e. plant height, number of branches and leaves, leaf area, fresh and dry weight of plants, also in seed yield and its components expressed as number and weight of pods, number of seeds per pod, 100-seed weight (seed index), seed yield per plant and per feddan”

✓ located verbatim in the source · abstract, characters 432–777 · show in text ↑
e1

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) produced 35.2% more seed yield than Kaha (1) in the first season.

Material
Kafr EI-Sheikh (1)e1
Outcome
seed yielde0
Direction
moree0
Value
35.2e0
Qualifier
two seasonse0
Comparator
Kaha (1)e1

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“produced 35.2 and 39.6% seed yield more than the other cultivar in the two seasons, respectively”

✓ located verbatim in the source · abstract, characters 779–875 · show in text ↑
e1

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv.”

✓ located verbatim in the source · abstract, characters 432–477 · show in text ↑
e2

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) produced 39.6% more seed yield than Kaha (1) in the second season.

Material
Kafr EI-Sheikh (1)e1
Outcome
seed yielde0
Direction
moree0
Value
39.6%e0
Comparator
Kaha (1)e1

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“produced 35.2 and 39.6% seed yield more than the other cultivar in the two seasons, respectively”

✓ located verbatim in the source · abstract, characters 779–875 · show in text ↑
e1

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv.”

✓ located verbatim in the source · abstract, characters 432–477 · show in text ↑
e2

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Kafr EI-Sheikh (1) had the highest germination, seedling length, and seed protein.

Material
Kafr EI-Sheikh (1)e1
Outcome
germination (%), seedling length and protein (%) in dry seede0
Direction
higheste0
Comparator
Kaha (1)e1

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“gave the highest values of germination (%), seedling length and protein (%) in dry seed”

✓ located verbatim in the source · abstract, characters 880–967 · show in text ↑
e1

“Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv.”

✓ located verbatim in the source · abstract, characters 432–477 · show in text ↑
e2

“cowpea cultivars”

✓ located verbatim in the source · abstract, characters 326–342 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wider spacing of 20 or 30 cm increased vegetative growth traits except height.

Treatment
wider spacing 20 or 30 cme0
Outcome
vegetative growth traitse0
Direction
highere0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“All vegetative growth traits recorded higher values in wider spacing 20 or 30 cm except plant height”

✓ located verbatim in the source · abstract, characters 972–1072 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The closest spacing gave maximum plant height.

Treatment
closer spacing (10 ern)e0
Outcome
plant heighte0
Direction
maximume0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“plant height which was maximum under closer spacing (10 ern)”

✓ located verbatim in the source · abstract, characters 1060–1120 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Increasing plant spacing enhanced seed yield components other than yield per feddan.

Treatment
increasing plant spacinge0
Outcome
seed yield components characterse0
Direction
enhancede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“all seed yield components characters were enhanced with increasing plant spacing except seed yieldlfeddan”

✓ located verbatim in the source · abstract, characters 1128–1233 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Narrow spacing gave maximum seed yield per feddan.

Treatment
narrow spacinge0
Outcome
seed yieldlfeddane0
Direction
maximume0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“seed yieldlfeddan which was maximum under narrow spacing”

✓ located verbatim in the source · abstract, characters 1216–1272 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wider spacing improved seed quality characters other than germination speed.

Treatment
wider spacinge0
Outcome
seed quality characters except germination speede0
Direction
highere0
Comparator
closer spacinge0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“seed quality characters except germination speed recorded higher values under wider spacing compared to closer spacing”

✓ located verbatim in the source · abstract, characters 1286–1404 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium increased cowpea plant growth characters.

Treatment
Spraying cowpea plants with potassiume0
Outcome
plant growth characterse0
Direction
increasede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spraying cowpea plants with potassium increased plant growth characters, seed yield and its components, germination percentage. seedling length and protein (%) in seed”

✓ located verbatim in the source · abstract, characters 1409–1576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium increased cowpea seed yield and components.

Treatment
Spraying cowpea plants with potassiume0
Outcome
seed yield and its componentse0
Direction
increasede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spraying cowpea plants with potassium increased plant growth characters, seed yield and its components, germination percentage. seedling length and protein (%) in seed”

✓ located verbatim in the source · abstract, characters 1409–1576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium increased cowpea germination percentage and seedling length.

Treatment
Spraying cowpea plants with potassiume0
Outcome
germination percentage. seedling lengthe0
Direction
increasede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spraying cowpea plants with potassium increased plant growth characters, seed yield and its components, germination percentage. seedling length and protein (%) in seed”

✓ located verbatim in the source · abstract, characters 1409–1576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium increased cowpea seed protein.

Treatment
Spraying cowpea plants with potassiume0
Outcome
protein (%) in seede0
Direction
increasede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Spraying cowpea plants with potassium increased plant growth characters, seed yield and its components, germination percentage. seedling length and protein (%) in seed”

✓ located verbatim in the source · abstract, characters 1409–1576 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Potassium at 2 cm/l was the most effective tested dose across characteristics.

Treatment
potassium at (2 cm/l)e0
Outcome
most effective treatmente0
Direction
most effectivee0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Using potassium at (2 cm/l) was the most effective treatment for all studied characters”

✓ located verbatim in the source · abstract, characters 1578–1665 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Cultivar, spacing, and potassium interacted differently across measured characteristics.

Treatment
plant spacing and potassiume0
Outcome
all studied characteristicse0
Direction
differede0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Interaction effect of cultivars, plant spacing and potassium were differed for all studied characteristics”

✓ located verbatim in the source · abstract, characters 1670–1776 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend 10 ern spacing with 2 cm/l foliar potassium for yield and seed quality.

Outcome
grow the used cultivars under closer spacing (10 ern) and spraying plants with foliar application of potassium at (2 cm/l)e0
Qualifier
highest seed yieldlfeddan as well as seed qualitye0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“it may be recommended to grow the used cultivars under closer spacing (10 ern) and spraying plants with foliar application of potassium at (2 cm/l) to obtain the highest seed yieldlfeddan as well as seed quality”

✓ located verbatim in the source · abstract, characters 1790–2001 · show in text ↑
e1

“cowpea plants”

✓ located verbatim in the source · abstract, characters 1418–1431 · show in text ↑

density · quality: grain · Vigna unguiculata (cowpea)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

2 in the opposite direction

  1. no effect
  2. no effect
See all 3 papers →

application · quality: protein · Vigna unguiculata (cowpea)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

density · growth · Vigna unguiculata (cowpea)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

potassium · growth · Vigna unguiculata (cowpea)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. negative
  2. positive
  3. positive

15 papers more in this group

See all 19 papers →

potassium · yield · Vigna unguiculata (cowpea)Positive and negative results

33 papers: 32 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

29 papers more in this group

See all 33 papers →

application · growth · Vigna unguiculata (cowpea)Positive and negative results

59 papers: 53 positive, 6 negative or no effect

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

  1. no effect
  2. no effect
  3. negative

55 papers more in this group

See all 59 papers →

density · yield · Vigna unguiculata (cowpea)Positive and negative results

63 papers: 50 positive, 13 negative or no effect

49 papers in the same direction as this paper · 13 in the opposite direction

  1. negative
  2. no effect
  3. negative

59 papers more in this group

See all 63 papers →

application · yield · Vigna unguiculata (cowpea)Positive and negative results

126 papers: 112 positive, 14 negative or no effect

111 papers in the same direction as this paper · 12 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

122 papers more in this group

See all 126 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.