Abstract
Lucerne (Medicago sativa L.) is the world's most important and ancient legume forage crop. It is moderately tolerant to salinity, but crop productivity is hampered. Salinity affects plant development, starting from seed germination to the reproductive stage. ISSR markers were employed to assess the genetic diversity among India's ten most common lucerne genotypes; the nine ISSR primers showed 83.50% polymorphism. The dendrogram revealed lower bootstrap support for group I; genotypes from group II were genetically distinct. Seed germination performance among the genotypes was studied at 0 (control), 85.55, 171, 256, and 342 mM NaCl concentrations. Higher germination was observed under control conditions. At a salt concentration of 85.55 mM NaCl, the genotypes under study showed less variation for germination and seedling characters. All germination indices and seedling parameters decrease with an increase in salt concentrations. Among the ten genotypes, Alamdar-51 showed high germination indices and seedling parameters under a high salinity level of 256 mM NaCl, indicating its ability for germination and initial growth under high saline conditions. At salinity concentrations of 342 mM NaCl, seed germination of all genotypes was severely affected. RL-88 and Kutchi selection showed the highest recovery of seed germination when seeds were transferred from a saline concentration to distilled water. These two genotypes demonstrated resistance to prolonged exposure to unfavorable salinized environments. This evaluation approach was found to be effective in identifying genotypes based on seed germination and early seedling growth stage under salinity stress.
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Claims 11
Claim · model-written summary
Nine ISSR primers detected 83.50% polymorphism among lucerne genotypes.
- Taxon
- lucerne
Medicago sativat0 - Outcome
- polymorphisme0
- Value
- 83.50%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nine ISSR primers showed 83.50% polymorphism”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
Group I had lower bootstrap support.
- Taxon
- lucerneMedicago sativat0
- Material
- group Ie0
- Outcome
- bootstrap supporte0
- Direction
- lowere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dendrogram revealed lower bootstrap support for group I”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
Group II genotypes were genetically distinct.
- Taxon
- lucerneMedicago sativat0
- Material
- group IIe0
- Outcome
- genetically distincte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotypes from group II were genetically distinct”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
Germination was higher under control conditions.
- Taxon
- lucerneMedicago sativat0
- Treatment
- control conditionse0
- Outcome
- germinatione0
- Direction
- Highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher germination was observed under control conditions.”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
At 85.55 mM NaCl, germination and seedling characters varied less among genotypes.
- Taxon
- lucerneMedicago sativat0
- Treatment
- 85.55 mM NaCle0
- Outcome
- variation for germination and seedling characterse0
- Direction
- lesse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At a salt concentration of 85.55 mM NaCl, the genotypes under study showed less variation for germination and seedling characters.”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
Germination indices and seedling parameters declined as salt concentration increased.
- Taxon
- lucerneMedicago sativat0
- Treatment
- salt concentrationse0
- Outcome
- germination indices and seedling parameterse0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All germination indices and seedling parameters decrease with an increase in salt concentrations.”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
Alamdar-51 retained high germination and seedling performance at 256 mM NaCl.
- Taxon
- lucerneMedicago sativat0
- Material
- Alamdar-51e0
- Treatment
- 256 mM NaCle0
- Outcome
- germination indices and seedling parameterse0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alamdar-51 showed high germination indices and seedling parameters under a high salinity level of 256 mM NaCl”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
At 342 mM NaCl, all genotypes had severely affected germination.
- Taxon
- lucerneMedicago sativat0
- Treatment
- 342 mM NaCle0
- Outcome
- seed germinatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At salinity concentrations of 342 mM NaCl, seed germination of all genotypes was severely affected.”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
RL-88 had the highest germination recovery after transfer to distilled water.
- Taxon
- lucerneMedicago sativat0
- Material
- RL-88e0
- Treatment
- transferred from a saline concentration to distilled watere0
- Outcome
- recovery of seed germinatione0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RL-88 and Kutchi selection showed the highest recovery of seed germination when seeds were transferred from a saline concentration to distilled water.”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
Kutchi selection had the highest germination recovery after transfer to distilled water.
- Taxon
- lucerneMedicago sativat0
- Material
- Kutchi selectione0
- Treatment
- transferred from a saline concentration to distilled watere0
- Outcome
- recovery of seed germinatione0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“RL-88 and Kutchi selection showed the highest recovery of seed germination when seeds were transferred from a saline concentration to distilled water.”
t0“lucerne (Medicago sativa L.)”
Claim · model-written summary
The evaluation approach identified genotypes using seed germination and early growth under salinity.
- Taxon
- lucerneMedicago sativat0
- Outcome
- effective in identifying genotypese0
- Qualifier
- under salinity stresse0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This evaluation approach was found to be effective in identifying genotypes based on seed germination and early seedling growth stage under salinity stress.”
t0“lucerne (Medicago sativa L.)”
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