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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Claims 9
Claim · model-written summary
Higher salinity significantly reduced plant height.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- increasing salinity levelse0
- Outcome
- plant heighte0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“cowpea”
e0“increasing salinity levels significantly decreased plant height”
Claim · model-written summary
Higher salinity significantly reduced leaf number.
- Taxon
- cowpea
Vigna unguiculatat0 - 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.

Verbatim
t0“cowpea”
e0“increasing salinity levels significantly decreased plant height, number of leaves”
Claim · model-written summary
Higher salinity significantly reduced nutrient uptake.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- increasing salinity levelse0
- Outcome
- nutrients uptakee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“cowpea”
e0“increasing salinity levels significantly decreased plant height, number of leaves, nutrients uptake”
Claim · model-written summary
Higher salinity significantly reduced cowpea protein yield.
- Taxon
- cowpea
Vigna unguiculatat0 - 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.

Verbatim
t0“cowpea”
e0“increasing salinity levels significantly decreased plant height, number of leaves, nutrients uptake, protein yield of cowpea”
Claim · model-written summary
Irrigation salinity above 3500 ppm reduced plant height by 38% in Khabat soil.
- Taxon
- cowpea
Vigna unguiculatat0 - 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.

Verbatim
t0“cowpea”
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.”
Claim · model-written summary
Irrigation salinity above 3500 ppm reduced leaf number by 66% in Khabat soil.
- Taxon
- cowpea
Vigna unguiculatat0 - 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.

Verbatim
t0“cowpea”
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.”
Claim · model-written summary
Soil ions accumulated significantly as irrigation salinity increased.
- Taxon
- cowpea
Vigna unguiculatat0 - 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.

Verbatim
t0“cowpea”
e0“the ions accumulated significantly in soil with increasing water salinity levels”
Claim · model-written summary
Soil chloride rose rapidly with increased irrigation salinity.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- increasing water salinity levelse0
- Outcome
- chloride concentratione0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“cowpea”
e0“A rapidly increase in chloride concentration was observed with increasing water salinity levels”
Claim · model-written summary
Other soil ions increased gradually with salinity in both soils.
- Taxon
- cowpea
Vigna unguiculatat0 - Outcome
- other ionse0
- Direction
- increasee0
- Setting
- both soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“cowpea”
e0“other ions gradually increase in both soils”
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