Paper · 2013 · IOSR Journal of Agriculture and Veterinary Science

Effect of salinity level of irrigation water on cowpea (Vigna Unguiculata) growth

Hemn Othman Salih

9
claims
18
verbatim quotes
3
citations
2
research areas
✓
Open access

Abstract

A field experiment was carried out to study the effect of different levels of saline water on some cowpea characteristics by using randomized complete block design with three replicates. Plant growth, nutrient concentration and protein content were studied. In addition, some soil chemical properties were investigated. Three levels 0, 2500 and 3500 ppm of saline water (sodium chloride) were used for irrigation in two types of soil. Results indicated that increasing salinity levels significantly decreased plant height, number of leaves, nutrients uptake, protein yield of cowpea, and ions concentration in the soil after harvesting. Vegetative growth was affected by increasing salinity levels of irrigation water. Increase in salinity of irrigation water above 3500 ppm reduced plant height and number of leaves by 38% and 66% respectively in Khabat soil. On the other hand, the result shows that the ions accumulated significantly in soil with increasing water salinity levels. A rapidly increase in chloride concentration was observed with increasing water salinity levels but other ions gradually increase in both soils.

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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 9

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher salinity significantly reduced plant height.

Treatment
increasing salinity levelse0
Outcome
plant heighte0
Direction
decreasede0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“increasing salinity levels significantly decreased plant height”

✓ located verbatim in the source · abstract, characters 458–521 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher salinity significantly reduced leaf number.

Treatment
increasing salinity levelse0
Outcome
number of leavese0
Direction
decreasede0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“increasing salinity levels significantly decreased plant height, number of leaves”

✓ located verbatim in the source · abstract, characters 458–539 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher salinity significantly reduced nutrient uptake.

Treatment
increasing salinity levelse0
Outcome
nutrients uptakee0
Direction
decreasede0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“increasing salinity levels significantly decreased plant height, number of leaves, nutrients uptake”

✓ located verbatim in the source · abstract, characters 458–557 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Higher salinity significantly reduced cowpea protein yield.

Treatment
increasing salinity levelse0
Outcome
protein yield of cowpeae0
Direction
decreasede0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“increasing salinity levels significantly decreased plant height, number of leaves, nutrients uptake, protein yield of cowpea”

✓ located verbatim in the source · abstract, characters 458–582 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation salinity above 3500 ppm reduced plant height by 38% in Khabat soil.

Treatment
salinity of irrigation water above 3500 ppme0
Outcome
plant heighte0
Direction
reducede0
Value
38%e0
Setting
Khabat soile0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“Increase in salinity of irrigation water above 3500 ppm reduced plant height and number of leaves by 38% and 66% respectively in Khabat soil.”

✓ located verbatim in the source · abstract, characters 719–860 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation salinity above 3500 ppm reduced leaf number by 66% in Khabat soil.

Treatment
salinity of irrigation water above 3500 ppme0
Outcome
number of leavese0
Direction
reducede0
Value
66%e0
Setting
Khabat soile0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“Increase in salinity of irrigation water above 3500 ppm reduced plant height and number of leaves by 38% and 66% respectively in Khabat soil.”

✓ located verbatim in the source · abstract, characters 719–860 · show in text ↑
Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil ions accumulated significantly as irrigation salinity increased.

Treatment
increasing water salinity levelse0
Outcome
ions accumulated significantly in soile0
Direction
accumulatede0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“the ions accumulated significantly in soil with increasing water salinity levels”

✓ located verbatim in the source · abstract, characters 902–982 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Soil chloride rose rapidly with increased irrigation salinity.

Treatment
increasing water salinity levelse0
Outcome
chloride concentratione0
Direction
increasee0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“A rapidly increase in chloride concentration was observed with increasing water salinity levels”

✓ located verbatim in the source · abstract, characters 984–1079 · show in text ↑
Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Other soil ions increased gradually with salinity in both soils.

Outcome
other ionse0
Direction
increasee0
Setting
both soilse0

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

t0

“cowpea”

✓ located verbatim in the source · title, characters 48–54 · show in text ↑
e0

“other ions gradually increase in both soils”

✓ located verbatim in the source · abstract, characters 1084–1127 · show in text ↑

salinity · nutrient: content · Vigna unguiculata (cowpea)Results differ

15 papers: 1 positive, 14 negative or no effect

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

  1. positive
  2. negative
  3. negative

11 papers more in this group

See all 15 papers →

salinity · growth · Vigna unguiculata (cowpea)Results differ

63 papers: 6 positive, 57 negative or no effect

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

  1. positive
  2. positive
  3. positive

59 papers more in this group

See all 63 papers →

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

24 papers: 15 positive, 9 negative or no effect

8 papers in the same direction as this paper · 15 in the opposite direction

  1. positive
  2. positive
  3. positive

20 papers more in this group

See all 24 papers →

salinity · quality: protein · Vigna unguiculata (cowpea)Results agree

6 papers: 0 positive, 6 negative or no effect

5 papers in the same direction as this paper

  1. negative
  2. negative
  3. negative

2 papers more in this group

See all 6 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.