Abstract
Creating salt-tolerant genotypes is crucial for maximizing the productivity under salinized land. To evaluate genetic diversity for salt tolerance, 35 diverse cotton accessions were screened under 17 dS m−1 salt stress conditions using 20 agronomic and physiological traits relevant to salt tolerance. The general linear model analysis indicated significant salinity impacts across the studied accessions, and genotype × treatment effects were also significant for all parameters examined. Among all 35 studied accessions; the genotypes CCB-1, CCB-2, CCB-28, CCB-3, CCB-4, Ghauri-1, JSQ-70, and JSQ-71 showed considerably higher performance for plant height, boll per plant, boll weight, lint percentage, seed cotton yield and fiber quality traits under salt stress. Physiological traits, chlorophyll and carotenoid contents, total soluble proteins, K+, and K+/Na+ were reduced under saline conditions, while biochemical traits such as catalase, superoxide dismutase, peroxidase, H2O2 and MDA level increased. The genotypes CCB-17, CCB-18, CCB-19, CCB-20, CCB-21, CCB-22, Hatf-3, Badar-1, Eagle-2, Eagle-4, CCB-23, CCB-24, CCB-25, CCB-26 and CCB-28 exhibited lower values for agro-physiological and fiber quality character respectively, signifying their sensitivity to salt stress. Under salinity, these genotypes showed reduced antioxidant levels and increased values for K+/Na+, Na+, H2O2, and MDA contents. Whereas the genotypes CCB-5, CCB-6, CCB-7, CCB-8, CCB-9, CCB-10, CCB-11, CCB-12, CCB-13, CCB-14, CCB-15, and CCB-16 demonstrated moderate performance for these traits under salt stress conditions respectively. Utilizing multivariate analysis techniques (cluster and PCA), 35 genotypes have been categorized into three groups based on studied traits: tolerant (cluster-1), moderately tolerant (cluster-2), and susceptible (cluster-3) under saline conditions.
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Claims 10
Claim · model-written summary
Salinity had significant effects across cotton accessions.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- salinitye0
- Outcome
- salinity impactse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The general linear model analysis indicated significant salinity impacts across the studied accessions”
t0“cotton”
Claim · model-written summary
Genotype by treatment effects were significant for all examined parameters.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- treatmente0
- Outcome
- all parameters examinede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotype × treatment effects were also significant for all parameters examined”
t0“cotton”
Claim · model-written summary
Eight named genotypes performed better for growth, yield, and fiber traits under salt stress.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- plant height, boll per plant, boll weighte0
- Direction
- highere0
- Qualifier
- under salt stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the genotypes CCB-1, CCB-2, CCB-28, CCB-3, CCB-4, Ghauri-1, JSQ-70, and JSQ-71 showed considerably higher performance for plant height, boll per plant, boll weight, lint percentage, seed cotton yield and fiber quality traits under salt stress”
t0“cotton”
Claim · model-written summary
Chlorophyll, carotenoids, soluble protein, K+, and K+/Na+ declined under salinity.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- saline conditionse0
- Outcome
- chlorophyll and carotenoid contents, total soluble proteinse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“chlorophyll and carotenoid contents, total soluble proteins, K+, and K+/Na+ were reduced under saline conditions”
t0“cotton”
Claim · model-written summary
Antioxidant enzymes, H2O2, and MDA increased under salinity.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- catalase, superoxide dismutase, peroxidasee0
- Direction
- increasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“catalase, superoxide dismutase, peroxidase, H2O2 and MDA level increased”
t0“cotton”
Claim · model-written summary
A set of genotypes showed low agronomic, physiological, and fiber quality values and was classified as salt sensitive.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- agro-physiological and fiber quality charactere0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the genotypes CCB-17, CCB-18, CCB-19, CCB-20, CCB-21, CCB-22, Hatf-3, Badar-1, Eagle-2, Eagle-4, CCB-23, CCB-24, CCB-25, CCB-26 and CCB-28 exhibited lower values for agro-physiological and fiber quality character respectively, signifying their sensitivity to salt stress”
t0“cotton”
Claim · model-written summary
The sensitive genotypes had reduced antioxidant levels under salinity.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- antioxidant levelse0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under salinity, these genotypes showed reduced antioxidant levels”
t0“cotton”
Claim · model-written summary
The sensitive genotypes had increased K+/Na+, Na+, H2O2 and MDA under salinity.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- K+/Na+, Na+, H2O2e0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increased values for K+/Na+, Na+, H2O2, and MDA contents”
t0“cotton”
Claim · model-written summary
Twelve CCB genotypes had moderate performance under salinity.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- moderate performancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the genotypes CCB-5, CCB-6, CCB-7, CCB-8, CCB-9, CCB-10, CCB-11, CCB-12, CCB-13, CCB-14, CCB-15, and CCB-16 demonstrated moderate performance for these traits under salt stress conditions”
t0“cotton”
Claim · model-written summary
Multivariate analysis placed 35 genotypes into tolerant, moderately tolerant, and susceptible groups.
- Taxon
- cottonGossypium hirsutumt0
- Outcome
- three groupse0
- Value
- 35 genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“35 genotypes have been categorized into three groups based on studied traits: tolerant (cluster-1), moderately tolerant (cluster-2), and susceptible (cluster-3)”
t0“cotton”
The same questions in other papers
salinity · physiology: pigments · Gossypium hirsutum (cotton)Results differ
14 papers in the same direction as this paper · 1 in the opposite direction
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- negative
- negative
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