Abstract
Increasing soil salinity threatens almond production globally, driving the need for the development of salt-tolerant cultivars. This study investigated the salt tolerance mechanisms of four self-rooted almond genotypes (Vialfas, Guara, Penta, and Avijor) under controlled conditions. Young plants were exposed to four salinity levels (0, 25, 50, and 75 mM NaCl) for 5 months. Growth parameters (trunk diameter, shoot length, fresh and dry weights), physiological responses (chlorophyll fluorescence, gas exchange, Soil–Plant Analysis Development (SPAD)), and mineral content were analyzed. Results show significant genotype-specific responses at the critical salinity threshold of 50 mM NaCl. Under these conditions, Guara and Vialfas maintained higher stem fresh weights (31.4 g and 37 g, respectively), while Avijor showed significant declines. Trunk diameter measurements revealed Vialfas’ superior performance (7 mm) compared to Guara and Penta (both around 6 mm), while Avijor exhibited the most significant reduction (5 mm). Chlorophyll fluorescence parameters indicated stress impact, with Fv/Fm values decreasing to 0.84 compared to control values of 0.87. Guara maintained higher K+/Na+ ratios in leaves (3.05) compared to Avijor (1.95), while Penta showed better Na+ exclusion ability with the lowest leaf Na+ content (0.57%). Cl− accumulation patterns also differed among genotypes, with Avijor and Vialfas showing higher leaf Cl− concentrations (0.74% and 0.73%, respectively) compared to Penta (0.44%). Genotype responses across all salinity levels revealed distinct tolerance patterns: Guara maintained growth and physiological functions across treatments, while Penta showed remarkable stability under high salinity. Vialfas exhibited vigor at low salinity but declined sharply at 75 mM NaCl. Avijor demonstrated the highest salt sensitivity. These findings highlight the genetic variability in salt tolerance among almond cultivars and identify potential sources of salt-tolerant traits for breeding programs. The study also provides insights for optimizing genotype selection and management strategies in salt-affected orchards, contributing to more sustainable almond production in challenging environments.
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Claims 14
Claim · model-written summary
Guara maintained a 31.4 g stem fresh weight at 50 mM NaCl.
- Taxon
- almond
Prunus dulcist0 - Material
- Guarae0
- Treatment
- 50 mM NaCle1
- Outcome
- stem fresh weightse0
- Direction
- highere0
- Value
- 31.4 ge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Guara and Vialfas maintained higher stem fresh weights (31.4 g and 37 g, respectively)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
e1“Results show significant genotype-specific responses at the critical salinity threshold of 50 mM NaCl.”
Claim · model-written summary
Vialfas maintained a 37 g stem fresh weight at 50 mM NaCl.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Guara and Vialfas maintained higher stem fresh weights (31.4 g and 37 g, respectively)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Avijor stem fresh weight declined significantly at the threshold.
- Taxon
- almondPrunus dulcist0
- Material
- Avijore0
- Outcome
- declinese0
- Direction
- declinese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while Avijor showed significant declines.”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Vialfas had superior trunk diameter of 7 mm.
- Taxon
- almondPrunus dulcist0
- Material
- Vialfase0
- Outcome
- Trunk diametere1
- Direction
- superiore0
- Value
- 7 mme0
- Qualifier
- around 6 mme0
- Comparator
- Guara and Pentae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vialfas’ superior performance (7 mm) compared to Guara and Penta (both around 6 mm)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
e1“Trunk diameter measurements revealed”
Claim · model-written summary
Avijor trunk diameter was reduced to 5 mm.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avijor exhibited the most significant reduction (5 mm)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
e1“Trunk diameter measurements revealed”
Claim · model-written summary
Fv/Fm decreased to 0.84 from control 0.87.
- Taxon
- almondPrunus dulcist0
- Treatment
- salinitye1
- Outcome
- Fv/Fme0
- Direction
- decreasinge0
- Value
- 0.84e0
- Qualifier
- 0.87e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fv/Fm values decreasing to 0.84 compared to control values of 0.87”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
e1“Young plants were exposed to four salinity levels (0, 25, 50, and 75 mM NaCl) for 5 months.”
Claim · model-written summary
Guara leaf K+/Na+ ratio of 3.05 exceeded Avijor at 1.95.
- Taxon
- almondPrunus dulcist0
- Material
- Guarae0
- Organ / stage
- leavese0
- Outcome
- K+/Na+ ratiose0
- Direction
- highere0
- Value
- 3.05e0
- Qualifier
- 1.95e0
- Comparator
- Avijore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Guara maintained higher K+/Na+ ratios in leaves (3.05) compared to Avijor (1.95)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Penta had the lowest leaf Na+ content, 0.57%.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Penta showed better Na+ exclusion ability with the lowest leaf Na+ content (0.57%)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Avijor leaf Cl− concentration was higher at 0.74%.
- Taxon
- almondPrunus dulcist0
- Material
- Avijore0
- Outcome
- leaf Cl− concentrationse0
- Direction
- highere0
- Value
- 0.74%e0
- Qualifier
- 0.44%e0
- Comparator
- Pentae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avijor and Vialfas showing higher leaf Cl− concentrations (0.74% and 0.73%, respectively) compared to Penta (0.44%)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Vialfas leaf Cl− concentration was higher at 0.73%.
- Taxon
- almondPrunus dulcist0
- Material
- Vialfase0
- Outcome
- leaf Cl− concentrationse0
- Direction
- highere0
- Value
- 0.73%e0
- Qualifier
- 0.44%e0
- Comparator
- Pentae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avijor and Vialfas showing higher leaf Cl− concentrations (0.74% and 0.73%, respectively) compared to Penta (0.44%)”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Guara maintained growth and physiology across treatments.
- Taxon
- almondPrunus dulcist0
- Material
- Guarae0
- Outcome
- growth and physiological functionse0
- Qualifier
- across treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Guara maintained growth and physiological functions across treatments”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Penta remained stable at high salinity.
- Taxon
- almondPrunus dulcist0
- Material
- Pentae0
- Outcome
- stabilitye0
- Qualifier
- high salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Penta showed remarkable stability under high salinity”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Vialfas vigor declined sharply at 75 mM NaCl after low-salinity vigor.
- Taxon
- almondPrunus dulcist0
- Material
- Vialfase0
- Outcome
- vigore0
- Direction
- declined sharplye0
- Qualifier
- 75 mM NaCle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vialfas exhibited vigor at low salinity but declined sharply at 75 mM NaCl.”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
Claim · model-written summary
Avijor was the most salt-sensitive genotype.
- Taxon
- almondPrunus dulcist0
- Material
- Avijore0
- Outcome
- salt sensitivitye0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Avijor demonstrated the highest salt sensitivity.”
t0“Evaluation of Salt Tolerance in Four Self-Rooted Almond Genotypes for Super-High-Density Orchards Under Varying Salinity Levels”
The same questions in other papers
salinity · physiology: photosynthesis · Prunus dulcis (almond)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.