Abstract
The effect of NaCl salinity (0, 85 and 170 mmol/L) during emergence of 25 genotypes of cowpea [ Vigna unguiculata (L.) Walp.] was studied under growth chamber conditions. Seed emergence percentage and rate, root:shoot ratio, and biomass per plant were affected by genotype, salinity and genotype salinity interaction; this interaction showed that salinity effects differed among genotypes. The criterion used to classify genotypes with respect to their salt tolerance was based on their germination percentages in both 85 and 170 mmol NaCl/L. One genotype was grouped into class ‘A’ (CB27) which had the highest salt tolerance at emergence, and was classified as salt tolerant. Another group consisting of Paceño, CB88, CB3, CB5, Tardón, Cuarenteño and CB46 was placed into class ‘B’; these genotypes showed total emergence percentages up to 75% in both 85 and 170 mmol NaCl/L. A third group of genotypes was placed into class ‘C’ which had the lowest emergence percentages in both 85 and 170 mmol NaCl/L. It was confirmed that salinity treatments affect the emergence of cowpea, delaying both emergence percentage and rate. We conclude that selection and classification for salt tolerance in cowpea genotypes can be successfully undertaken at early seedling stages, because the same genotypes were classified similarly during the germination stage in previous research.
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Claims 6
Claim · model-written summary
Genotype, salinity and their interaction affected emergence, biomass and root to shoot ratio.
- Taxon
- cowpea
Vigna unguiculatat0 - Material
- genotypee0
- Treatment
- salinitye0
- Outcome
- Seed emergence percentage and rate, root:shoot ratio, and biomass per plante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed emergence percentage and rate, root:shoot ratio, and biomass per plant were affected by genotype, salinity and genotype salinity interaction; this interaction showed that salinity effects differed among genotypes.”
t0“cowpea”
Claim · model-written summary
CB27 had the highest salt tolerance at emergence.
- Taxon
- cowpeaVigna unguiculatat0
- Material
- CB27e0
- Outcome
- salt tolerance at emergencee0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One genotype was grouped into class ‘A’ (CB27) which had the highest salt tolerance at emergence, and was classified as salt tolerant.”
t0“cowpea”
Claim · model-written summary
Class B genotypes reached up to 75% emergence at both salt levels.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- total emergence percentagese0
- Value
- 75%e0
- Qualifier
- both 85 and 170 mmol NaCl/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Paceño, CB88, CB3, CB5, Tardón, Cuarenteño and CB46 was placed into class ‘B’; these genotypes showed total emergence percentages up to 75% in both 85 and 170 mmol NaCl/L.”
t0“cowpea”
Claim · model-written summary
Class C genotypes had the lowest emergence under both salinity levels.
- Taxon
- cowpeaVigna unguiculatat0
- Outcome
- emergence percentagese0
- Direction
- loweste0
- Qualifier
- both 85 and 170 mmol NaCl/Le0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A third group of genotypes was placed into class ‘C’ which had the lowest emergence percentages in both 85 and 170 mmol NaCl/L.”
t0“cowpea”
Claim · model-written summary
Salt treatment delayed cowpea emergence percentage and rate.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- salinity treatmentse0
- Outcome
- emergence percentage and ratee0
- Direction
- delayinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity treatments affect the emergence of cowpea, delaying both emergence percentage and rate.”
Claim · model-written summary
Early seedling screening was judged suitable for classifying salt tolerance.
- Taxon
- cowpeaVigna unguiculatae0
- Organ / stage
- early seedling stagese0
- Outcome
- selection and classification for salt tolerance in cowpea genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“selection and classification for salt tolerance in cowpea genotypes can be successfully undertaken at early seedling stages”
The same questions in other papers
salinity · growth · Vigna unguiculata (cowpea)Results differ
56 papers in the same direction as this paper · 6 in the opposite direction
- positive
- positive
- positive
59 papers more in this group
See all 63 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.