Abstract
Linseed (Linum usitatissimum) is a versatile crop cultivated for its seeds, which are valuable source of ω-3 fatty acids. It adversely affected by soil salinity, as high salt levels can hinder their growth and reduce yields. To assess the potential for mitigating the adverse effects of high salinity concentrations, enhancing the resilience of three genotypes (Shekhar, Sheela, and Kartika) of linseed plants, this research aimed to find out the impact of Gibberellic acid (GA3) and Calcium (Ca) on various aspects of root morphology, osmotic potential of linseed, under varying levels of Cl- dominated salinity. The study employed three salinity levels (0, 5, and 10 dSm-1) and exogenous application of 10−6 M GA3 and/or 10 mg CaCl2 kg-1 in potted plants.The findings indicated that increasing salinity stress significantly (p≤0.05) affected root parameters, including total surface area(43.45%), average diameter(42.06%), total projected area(44.45%), length per volume (66.23%), root length, total root volume (73.23%), tips, forks,fine roots, and osmotic potential(66.67%). Correlations among linseed genotypes were observed between various root morphology and osmotic potential parameters. The application of GA3 and Ca effectively ameliorated the impact of salinity stress at its highest level (10 dSm-1), resulting in increased root parameters while decreasing the osmotic potential (Ψs). Both GA3 and Ca treatments significantly influenced root architecture and maintained optimal osmotic potential. The chloride-dominated salinity exerted inhibitory effects on all three genotypes’ (Shekhar, Sheela, and Kartika) root growth parameters while applying GA3 and Ca successfully mitigated these effects, enhancing root growth.
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Claims 11
Claim · model-written summary
Increasing salinity significantly affected root surface area by 43.45%.
Not reportedComparatorDirection
Verbatim
e0“increasing salinity stress significantly (p≤0.05) affected root parameters, including total surface area(43.45%)”
t0“linseed (Linum usitatissimum L.)”
Claim · model-written summary
Increasing salinity significantly affected average root diameter by 42.06%.
Not reportedComparatorDirection
Verbatim
e0“average diameter(42.06%)”
t0“linseed (Linum usitatissimum L.) under chloride-dominated salinity”
Claim · model-written summary
Increasing salinity significantly affected total projected root area by 44.45%.
Not reportedComparatorDirection
Verbatim
e0“total projected area(44.45%)”
t0“linseed (Linum usitatissimum L.) under chloride-dominated salinity”
Claim · model-written summary
Increasing salinity significantly affected root length per volume by 66.23%.
Not reportedComparatorDirection
Verbatim
e0“length per volume (66.23%)”
t0“linseed (Linum usitatissimum L.) under chloride-dominated salinity”
Claim · model-written summary
Increasing salinity significantly affected total root volume by 73.23%.
Not reportedComparatorDirection
Verbatim
e0“total root volume (73.23%)”
t0“linseed (Linum usitatissimum L.) under chloride-dominated salinity”
Claim · model-written summary
Increasing salinity significantly affected osmotic potential by 66.67%.
Not reportedComparatorDirection
Verbatim
e0“osmotic potential(66.67%)”
t0“linseed (Linum usitatissimum L.) under chloride-dominated salinity”
Claim · model-written summary
Salinity affected root length, tips, forks and fine roots.
Not reportedComparatorDirection
Verbatim
e0“root length, total root volume (73.23%), tips, forks,fine roots”
t0“linseed (Linum usitatissimum L.) under chloride-dominated salinity”
Claim · model-written summary
Root morphology and osmotic potential were correlated among genotypes.
Not reportedDirection
Verbatim
e0“Correlations among linseed genotypes were observed between various root morphology and osmotic potential parameters”
Claim · model-written summary
GA3 and Ca increased root parameters under highest salinity.
Not reportedComparator
Verbatim
e0“The application of GA3 and Ca effectively ameliorated the impact of salinity stress at its highest level (10 dSm-1), resulting in increased root parameters”
t0“linseed (Linum usitatissimum L.)”
Claim · model-written summary
GA3 and Ca decreased osmotic potential under highest salinity.
Not reportedComparator
Verbatim
e0“decreasing the osmotic potential (Ψs)”
t0“GA3 (gibberellic acid) and Ca(calcium) on root trait variation and osmotic potential of linseed (Linum usitatissimum L.)”
Claim · model-written summary
Chloride-dominated salinity inhibited root growth in all three genotypes.
- Taxon
- linseedt0
- Material
- Shekhar, Sheela, and Kartikae0
- Treatment
- chloride-dominated salinitye0
- Outcome
- root growth parameterse0
- Direction
- inhibitorye0
Not reportedComparator
Verbatim
e0“The chloride-dominated salinity exerted inhibitory effects on all three genotypes’ (Shekhar, Sheela, and Kartika) root growth parameters”
t0“linseed (Linum usitatissimum L.)”
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salinity · growth · Linum usitatissimum (flax)Results differ
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