Abstract
Salt stress is the most significant abiotic stress that can severely limit crop growth and productivity. This problem gets worse in the context of climate change. The Knowledge of genetic pool behavior under such environmental constraints is imperative for growing and research. Here, we tested salt stress tolerance in six barley varieties (‘Amira’, ‘Oussama’, ‘Tamellalet’, ‘Adrar’, ‘Taffa’, and ‘Laanaceur’). To this end, a set of biochemical parameters (chlorophylls, proline, sodium, potassium levels and K+/Na+ ratio) were measured. Salt constraint significantly reduced chlorophyll content and K+/Na+ but resulted in high records of proline and Na+. Our outcomes show that treatment was the main variability since it explained more than 75% in data variability followed by variety effect. Wide variabilities were found among varieties for the measured parameters. Higher proline levels and K+/Na+ were found in ‘Adrar’, ‘Tamellalet’ and ‘Taffa’. These two later varieties also displayed a higher record of K+. Lower Na+ values were recorded in ‘Laanaceur’, ‘Taffa’, and ‘Tamellalet’, indicating their relative resistance against salt stress. In contrast, ‘Oussama’ and ‘Amira’ were relatively salt-sensitive due to their higher Na+ and lowered K+/Na+ and proline content. Resistant varieties could represent a good background for breeding for barley salt tolerance.
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Claims 11
Claim · model-written summary
Salt stress significantly reduced chlorophyll content and K+/Na+ ratio in barley.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Organ / stage
- Flag Leaft0
- Treatment
- Salt constrainte1
- Outcome
- chlorophyll content and K+/Na+e1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“six barley varieties”
e1“Salt constraint significantly reduced chlorophyll content and K+/Na+”
t0“Flag Leaf Tolerance Study”
Claim · model-written summary
Salt stress raised proline and Na+ levels in barley.
- Taxon
- barleyHordeum vulgaree0
- Organ / stage
- Flag Leaft0
- Treatment
- Salt constrainte1
- Outcome
- proline and Na+e1
- Direction
- increaseinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“Salt constraint significantly reduced chlorophyll content and K+/Na+ but resulted in high records of proline and Na+”
t0“Flag Leaf Tolerance Study”
Claim · model-written summary
Treatment (salt) was the main source of data variability, explaining more than 75%, followed by variety effect.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- treatmente1
- Outcome
- data variabilitye1
- Value
- more than 75%e1
- Qualifier
- followed by variety effecte1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“treatment was the main variability since it explained more than 75% in data variability followed by variety effect”
Claim · model-written summary
Wide variabilities were found among barley varieties for the measured parameters.
- Taxon
- barleyHordeum vulgaree0
- Outcome
- Wide variabilitiese1
- Qualifier
- among varieties for the measured parameterse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“Wide variabilities were found among varieties for the measured parameters”
Claim · model-written summary
Adrar, Tamellalet and Taffa had higher proline levels and K+/Na+ ratio.
- Taxon
- barleyHordeum vulgaree0
- Material
- ‘Adrar’, ‘Tamellalet’ and ‘Taffa’e1
- Outcome
- proline levels and K+/Na+e1
- Direction
- Highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“Higher proline levels and K+/Na+ were found in ‘Adrar’, ‘Tamellalet’ and ‘Taffa’”
Claim · model-written summary
Tamellalet and Taffa displayed higher K+.
- Taxon
- barleyHordeum vulgaree0
- Material
- ‘Tamellalet’ and ‘Taffa’e2
- Outcome
- K+e1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“These two later varieties also displayed a higher record of K+”
e2“‘Adrar’, ‘Tamellalet’ and ‘Taffa’”
Claim · model-written summary
Laanaceur, Taffa and Tamellalet had lower Na+ values, indicating relative salt resistance.
- Taxon
- barleyHordeum vulgaree0
- Material
- ‘Laanaceur’, ‘Taffa’, and ‘Tamellalet’e1
- Treatment
- salt stresse1
- Outcome
- Na+ valuese1
- Direction
- Lowere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“Lower Na+ values were recorded in ‘Laanaceur’, ‘Taffa’, and ‘Tamellalet’, indicating their relative resistance against salt stress”
Claim · model-written summary
Oussama and Amira were relatively salt-sensitive.
- Taxon
- barleyHordeum vulgaree0
- Material
- ‘Oussama’ and ‘Amira’e1
- Outcome
- relatively salt-sensitivee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“‘Oussama’ and ‘Amira’ were relatively salt-sensitive due to their higher Na+ and lowered K+/Na+ and proline content”
Claim · model-written summary
Oussama and Amira had higher Na+.
- Taxon
- barleyHordeum vulgaree0
- Material
- ‘Oussama’ and ‘Amira’e1
- Outcome
- Na+e1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“‘Oussama’ and ‘Amira’ were relatively salt-sensitive due to their higher Na+ and lowered K+/Na+ and proline content”
Claim · model-written summary
Oussama and Amira had lowered K+/Na+ ratio and proline content.
- Taxon
- barleyHordeum vulgaree0
- Material
- ‘Oussama’ and ‘Amira’e1
- Outcome
- K+/Na+ and proline contente1
- Direction
- lowerede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“six barley varieties”
e1“‘Oussama’ and ‘Amira’ were relatively salt-sensitive due to their higher Na+ and lowered K+/Na+ and proline content”
Claim · model-written summary
Resistant barley varieties could be a good background for breeding for salt tolerance.
- Taxon
- barleyHordeum vulgaree1
- Material
- Resistant varietiese1
- Outcome
- good background for breedinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Resistant varieties could represent a good background for breeding for barley salt tolerance”
The same questions in other papers
salinity · physiology: pigments · Hordeum vulgare (barley)Positive and negative results
15 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- positive
14 papers more in this group
See all 18 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.