Abstract
ABSTRACT Salinity is prejudicial to plant development, causing different types of damage to species, or even between genotypes of the same species, with the effects being aggravated when combined with other types of stress, such as heat stress. The aim of this study was to evaluate the tolerance of cowpea genotypes (Vigna unguiculata L. Walp.) to salt stress at different temperatures. Seeds of the Pujante, Epace 10 and Marataoã genotypes were placed on paper rolls (Germitest®) moistened with different salt concentrations of 0.0 (control), 1.5, 3.0, 4.5 and 6.0 dS m-1, and placed in a germination chamber (BOD) at temperatures of 20, 25, 30 and 35°C. The experiment was conducted in a completely randomised design, in a 3 × 4 × 5 scheme of subdivided plots, with four replications per treatment. The variables under analysis were germination percentage, first germination count, shoot and root length, and total seedling dry weight. At temperatures of 30 and 35°C, increases in the salt concentration were more damaging to germination in the Epace 10 and Pujante genotypes, while for the Marataoã genotype, damage occurred at the temperature of 20°C. At 25°C, germination and vigour in the genotypes were higher, with the Pujante genotype proving to be more tolerant to salt stress, whereas Epace 10 and Marataoã were more tolerant to high temperatures. Germination in the cowpea genotypes was more sensitive to salt stress when subjected to heat stress caused by the low temperature of 20°C or high temperature of 35°C.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 8
Claim · model-written summary
At 30 and 35°C increasing salt damaged germination of Epace 10.
- Taxon
- COWPEA
Vigna unguiculatat0 - Material
- Epace 10e0
- Treatment
- increases in the salt concentratione0
- Outcome
- germinatione0
- Direction
- more damaginge0
- Qualifier
- 30 and 35°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At temperatures of 30 and 35°C, increases in the salt concentration were more damaging to germination in the Epace 10 and Pujante genotypes”
t0“COWPEA”
Claim · model-written summary
At 30 and 35°C increasing salt damaged germination of Pujante.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- Pujantee0
- Treatment
- increases in the salt concentratione0
- Outcome
- germinatione0
- Direction
- more damaginge0
- Qualifier
- 30 and 35°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At temperatures of 30 and 35°C, increases in the salt concentration were more damaging to germination in the Epace 10 and Pujante genotypes”
t0“COWPEA”
Claim · model-written summary
At 20°C salt damaged Marataoã germination.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- Marataoãe0
- Treatment
- salt concentratione1
- Outcome
- germinatione1
- Direction
- damage occurrede0
- Qualifier
- 20°Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for the Marataoã genotype, damage occurred at the temperature of 20°C”
e1“increases in the salt concentration were more damaging to germination”
t0“COWPEA”
Claim · model-written summary
At 25°C germination and vigour were higher across genotypes.
- Taxon
- COWPEAVigna unguiculatat0
- Outcome
- germination and vigoure0
- Direction
- highere0
- Qualifier
- 25°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At 25°C, germination and vigour in the genotypes were higher”
t0“COWPEA”
Claim · model-written summary
Pujante was more salt tolerant.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- Pujantee0
- Outcome
- more tolerant to salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the Pujante genotype proving to be more tolerant to salt stress”
t0“COWPEA”
Claim · model-written summary
Epace 10 was more tolerant to high temperatures.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- Epace 10e0
- Outcome
- more tolerant to high temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epace 10 and Marataoã were more tolerant to high temperatures”
t0“COWPEA”
Claim · model-written summary
Marataoã was more tolerant to high temperatures.
- Taxon
- COWPEAVigna unguiculatat0
- Material
- Marataoãe0
- Outcome
- more tolerant to high temperaturese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epace 10 and Marataoã were more tolerant to high temperatures”
t0“COWPEA”
Claim · model-written summary
Cowpea germination was more salt sensitive at 20°C and 35°C.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- salt stresse0
- Outcome
- Germinatione0
- Direction
- more sensitivee0
- Qualifier
- low temperature of 20°C or high temperature of 35°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Germination in the cowpea genotypes was more sensitive to salt stress when subjected to heat stress caused by the low temperature of 20°C or high temperature of 35°C”
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.