Abstract
Plants’ tolerance to salt stress is different among species, nevertheless, mineral nutrition might also affect it. A greenhouse experiment was conducted to evaluate the effect of Zinc (Zn) on salinity tolerance using a sigmoid response model in two wheat (Triticum aestivum L.) genotypes ‘Falat’ and ‘Bam’ with different salinity tolerances. The treatments consisted of three Zn rates (0, 5 and 10 mg Zn kg−1) and five levels of soil salinity (1.1, 6.5, 12.3, 18.7 and 25.1 dS m−1). The results showed that dry weight of straw and grain decreased, as salinity increased in both genotypes although this decrease in ‘Falat’ genotype was higher than that of ‘Bam’ genotype. Application of 10 mg kg−1 Zn increased the dry weight by 25% (straw) and 32% (grain) in ‘Falat’ but 67% (straw) and 60% (grain) in ‘Bam’ as compared with the absence of added Zn. According to the fitted function, in the absence of Zn, grain production began to decline at ECe-values of 4.7 dS m−1 in ‘Falat’ genotype, and 7.5 dS m−1 in ‘Bam’ genotype. Application of Zn led to a decrease of salinity tolerance in ‘Falat’ genotype, but an increase in ‘Bam’ genotype. The study found that Zn application under saline conditions, depending on genetic differences of wheat genotypes, would have different effects on their tolerance to salinity.
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Claims 9
Claim · model-written summary
Increasing salinity reduced straw and grain dry weight in both genotypes, more strongly in Falat.
- Taxon
- wheat
Triticum aestivumt0 - Material
- ‘Falat’ genotypee0
- Treatment
- salinitye0
- Outcome
- dry weight of straw and graine0
- Direction
- decreasede0
- Comparator
- ‘Bam’ genotypee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry weight of straw and grain decreased, as salinity increased in both genotypes although this decrease in ‘Falat’ genotype was higher than that of ‘Bam’ genotype”
t0“wheat”
Claim · model-written summary
Ten mg kg−1 Zn increased Falat straw dry weight by 25% versus no added Zn.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Falat’e0
- Organ / stage
- strawe0
- Treatment
- 10 mg kg−1 Zne0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 25%e0
- Comparator
- absence of added Zne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 10 mg kg−1 Zn increased the dry weight by 25% (straw) and 32% (grain) in ‘Falat’ but 67% (straw) and 60% (grain) in ‘Bam’ as compared with the absence of added Zn.”
t0“wheat”
Claim · model-written summary
Ten mg kg−1 Zn increased Falat grain dry weight by 32% versus no added Zn.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Falat’e0
- Organ / stage
- graine0
- Treatment
- 10 mg kg−1 Zne0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 32%e0
- Comparator
- absence of added Zne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 10 mg kg−1 Zn increased the dry weight by 25% (straw) and 32% (grain) in ‘Falat’ but 67% (straw) and 60% (grain) in ‘Bam’ as compared with the absence of added Zn.”
t0“wheat”
Claim · model-written summary
Ten mg kg−1 Zn increased Bam straw dry weight by 67% versus no added Zn.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Bam’e0
- Organ / stage
- strawe0
- Treatment
- 10 mg kg−1 Zne0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 67%e0
- Comparator
- absence of added Zne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 10 mg kg−1 Zn increased the dry weight by 25% (straw) and 32% (grain) in ‘Falat’ but 67% (straw) and 60% (grain) in ‘Bam’ as compared with the absence of added Zn.”
t0“wheat”
Claim · model-written summary
Ten mg kg−1 Zn increased Bam grain dry weight by 60% versus no added Zn.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Bam’e0
- Organ / stage
- graine0
- Treatment
- 10 mg kg−1 Zne0
- Outcome
- dry weighte0
- Direction
- increasede0
- Value
- 60%e0
- Comparator
- absence of added Zne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 10 mg kg−1 Zn increased the dry weight by 25% (straw) and 32% (grain) in ‘Falat’ but 67% (straw) and 60% (grain) in ‘Bam’ as compared with the absence of added Zn.”
t0“wheat”
Claim · model-written summary
Without zinc, fitted grain production began declining at 4.7 dS m−1 in Falat.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Falat’e0
- Treatment
- absence of Zne0
- Outcome
- grain productione0
- Direction
- declinee0
- Value
- 4.7 dS m−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the absence of Zn, grain production began to decline at ECe-values of 4.7 dS m−1 in ‘Falat’ genotype”
t0“wheat”
Claim · model-written summary
Without zinc, fitted grain production began declining at 7.5 dS m−1 in Bam.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Bam’e0
- Treatment
- absence of Zne0
- Outcome
- grain productione0
- Direction
- declinee0
- Value
- 7.5 dS m−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the absence of Zn, grain production began to decline at ECe-values of 4.7 dS m−1 in ‘Falat’ genotype, and 7.5 dS m−1 in ‘Bam’ genotype”
t0“wheat”
Claim · model-written summary
Zinc decreased salinity tolerance in Falat.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Falat’e0
- Treatment
- Zne0
- Outcome
- salinity tolerancee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Zn led to a decrease of salinity tolerance in ‘Falat’ genotype”
t0“wheat”
Claim · model-written summary
Zinc increased salinity tolerance in Bam.
- Taxon
- wheatTriticum aestivumt0
- Material
- ‘Bam’e0
- Treatment
- Zne0
- Outcome
- salinity tolerancee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Zn led to a decrease of salinity tolerance in ‘Falat’ genotype, but an increase in ‘Bam’ genotype”
t0“wheat”
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See all 7 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.