Abstract
Abstract Five cowpea genotypes, Gorom local (Go), KVX61‐1 (KV), Mouride (Mo), Bambey 21 (B21) and TN88‐63 (TN), differing in their susceptibility to water stress, were studied under glasshouse and field conditions, to determine their physiological, biochemical and agronomic responses to water deficit at flowering stage. Effect of water deficit on leaf water potential ( ψ l ), canopy temperature, gaseous exchange, leaf proline content, total protein and starch contents, maximal quantum yield ( ϕ p 0 ) and yield components was examined. Water deficit significantly increased the canopy temperature and the proline content of the five genotypes while ψ l , gaseous exchanges, ϕ p 0 and starch content decreased significantly. Yield components, with the exception of seed number per pod, of the five genotypes, were also significantly affected. Under glasshouse and field conditions, the results showed that stomatal closure is the common strategy used by the five genotypes to avoid dehydration. Go, Mo and TN tolerated water stress better than B21 and KV. Furthermore, Go and Mo recovered more rapidly after rewatering than B21 and KV. These latter genotypes are revealed to be sensitive with low recovery capacity. The results suggest that the maintenance of net photosynthesis and solute accumulation seem to be traits conferring water stress tolerance in Go, Mo and TN. These traits and recovery capacity could be valuable selection criteria for higher yields under water deficit conditions.
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 11
Claim · model-written summary
Water deficit significantly increased canopy temperature in five cowpea genotypes.
- Taxon
- cowpea
Vigna unguiculatat0 - Treatment
- Water deficite0
- Outcome
- canopy temperaturee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit significantly increased the canopy temperature and the proline content of the five genotypes”
t0“cowpea”
Claim · model-written summary
Water deficit significantly increased proline content in five cowpea genotypes.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- Water deficite0
- Outcome
- proline contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water deficit significantly increased the canopy temperature and the proline content of the five genotypes”
t0“cowpea”
Claim · model-written summary
Water deficit significantly decreased leaf water potential and gaseous exchange in five cowpea genotypes.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- water deficite1
- Outcome
- ψ l , gaseous exchangese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while ψ l , gaseous exchanges, ϕ p 0 and starch content decreased significantly.”
e1“Effect of water deficit on leaf water potential”
t0“cowpea”
Claim · model-written summary
Water deficit significantly decreased maximal quantum yield in five cowpea genotypes.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- water deficite1
- Outcome
- ϕ p 0e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while ψ l , gaseous exchanges, ϕ p 0 and starch content decreased significantly.”
e1“Effect of water deficit on leaf water potential”
t0“cowpea”
Claim · model-written summary
Water deficit significantly decreased starch content in five cowpea genotypes.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- water deficite1
- Outcome
- starch contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while ψ l , gaseous exchanges, ϕ p 0 and starch content decreased significantly.”
e1“Effect of water deficit on leaf water potential”
t0“cowpea”
Claim · model-written summary
Water deficit significantly affected cowpea yield components except seed number per pod.
- Taxon
- cowpeaVigna unguiculatat0
- Treatment
- water deficite1
- Outcome
- Yield componentse0
- Qualifier
- with the exception of seed number per pode0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield components, with the exception of seed number per pod, of the five genotypes, were also significantly affected.”
e1“Effect of water deficit on leaf water potential”
t0“cowpea”
Claim · model-written summary
Stomatal closure was a common dehydration avoidance strategy across five cowpea genotypes in glasshouse and field conditions.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- avoid dehydratione0
- Qualifier
- stomatal closuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“stomatal closure is the common strategy used by the five genotypes to avoid dehydration”
t0“cowpea”
Claim · model-written summary
Go, Mo and TN tolerated water stress better than B21 and KV.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Go, Mo and TNe0
- Outcome
- tolerated water stresse0
- Direction
- bettere0
- Comparator
- B21 and KVe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Go, Mo and TN tolerated water stress better than B21 and KV.”
t0“cowpea”
Claim · model-written summary
Go and Mo recovered more rapidly after rewatering than B21 and KV.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Go and Moe0
- Outcome
- recoverede0
- Direction
- more rapidlye0
- Comparator
- B21 and KVe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Go and Mo recovered more rapidly after rewatering than B21 and KV.”
t0“cowpea”
Claim · model-written summary
Maintenance of net photosynthesis and solute accumulation were proposed as water stress tolerance traits in Go, Mo and TN.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- Go, Mo and TNe0
- Outcome
- water stress tolerancee0
- Qualifier
- maintenance of net photosynthesis and solute accumulatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintenance of net photosynthesis and solute accumulation seem to be traits conferring water stress tolerance in Go, Mo and TN”
t0“cowpea”
Claim · model-written summary
The authors proposed these traits and recovery capacity as selection criteria for higher yields under water deficit.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- selection criteria for higher yields under water deficit conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These traits and recovery capacity could be valuable selection criteria for higher yields under water deficit conditions.”
t0“cowpea”
The same questions in other papers
drought · growth · Vigna unguiculata (cowpea)Results differ
42 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- positive
48 papers more in this group
See all 52 papers →drought · quality: sugar starch · Vigna unguiculata (cowpea)Results agree
6 papers in the same direction as this paper
- negative
- no effect
- negative
3 papers more in this group
See all 7 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.