Abstract
In this study, 7‐month‐old UCB‐1, Badami, Ghazvini and Kale‐Ghouchi pistachio rootstocks were exposed to control, drought, salinity and drought + salinity environments for 60 d. Total chlorophyll and total carotenoid contents decreased in all cultivars under drought, salinity and drought + salinity stresses. Under drought and salinity stresses, alone or in combination, Na + and Cl − ions increased in all four pistachio rootstocks, while K + ion decreased only in Ghazvini and Kaleh‐Ghouchi cultivars. The enzyme activities of ascorbate peroxidase, polyphenol oxidase, catalase and guaiacol peroxidase increased in all cultivars when subjected to all three stresses with the exception of the ascorbate peroxidase activity in Kale‐Ghouchi cultivar during drought stress. Oxidative stress parameters including electrolyte leakage, malondialdehyde, other aldehydes and hydrogen peroxide increased under all three stress conditions in all genotypes. The content of proline, total free amino acids and total soluble carbohydrates were enhanced under drought, salinity and drought + salinity stresses, whereas the protein content decreased in all pistachio rootstocks. In all evaluated traits, except for the K + ion content and APX activity, the highest impacts was seen for drought + salinity > salinity > drought stresses, respectively. For the first time, we have proven that K + ion content has a positive correlation with the ascorbate peroxidase, polyphenol oxidase, catalase and guaiacol peroxidase enzymes activities under drought + salinity stress. Finally, based on the bi‐plot and cluster analyses, we have selected the UCB‐1 > Badami > Ghazvini > Kale‐Ghouchi cultivars as the most tolerant pistachio rootstocks under drought + salinity stress, respectively.
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Claims 10
Claim · model-written summary
Drought and salinity reduced chlorophyll and carotenoid content in all cultivars.
- Taxon
- pistachio
Pistacia verat0 - Treatment
- drought, salinity and drought + salinity stressese0
- Outcome
- Total chlorophyll and total carotenoid contentse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total chlorophyll and total carotenoid contents decreased in all cultivars under drought, salinity and drought + salinity stresses.”
t0“pistachio rootstocks”
Claim · model-written summary
Drought and salinity raised sodium and chloride in all four rootstocks.
- Taxon
- pistachioPistacia verae0
- Outcome
- Na + and Cl − ionse0
- Direction
- increasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Na + and Cl − ions increased in all four pistachio rootstocks”
Claim · model-written summary
Potassium fell only in Ghazvini and Kaleh‐Ghouchi cultivars.
- Taxon
- pistachioPistacia verat0
- Material
- Ghazvini and Kaleh‐Ghouchi cultivarse0
- Outcome
- K + ione0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K + ion decreased only in Ghazvini and Kaleh‐Ghouchi cultivars”
t0“pistachio rootstocks”
Claim · model-written summary
The four antioxidant enzyme activities rose under the stresses, except ascorbate peroxidase in Kale‐Ghouchi during drought.
- Taxon
- pistachioPistacia verat0
- Treatment
- all three stressese0
- Outcome
- enzyme activities of ascorbate peroxidase, polyphenol oxidase, catalase and guaiacol peroxidasee0
- Direction
- increasede0
- Qualifier
- exception of the ascorbate peroxidase activity in Kale‐Ghouchi cultivar during drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enzyme activities of ascorbate peroxidase, polyphenol oxidase, catalase and guaiacol peroxidase increased in all cultivars when subjected to all three stresses with the exception of the ascorbate peroxidase activity in Kale‐Ghouchi cultivar during drought stress.”
t0“pistachio rootstocks”
Claim · model-written summary
Oxidative stress parameters increased under each stress in all genotypes.
- Taxon
- pistachioPistacia verat0
- Treatment
- all three stress conditionse0
- Outcome
- Oxidative stress parameters including electrolyte leakage, malondialdehyde, other aldehydes and hydrogen peroxidee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oxidative stress parameters including electrolyte leakage, malondialdehyde, other aldehydes and hydrogen peroxide increased under all three stress conditions in all genotypes.”
t0“pistachio rootstocks”
Claim · model-written summary
Proline, free amino acids and soluble carbohydrates increased under all stresses.
- Taxon
- pistachioPistacia verat0
- Treatment
- drought, salinity and drought + salinity stressese0
- Outcome
- content of proline, total free amino acids and total soluble carbohydratese0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The content of proline, total free amino acids and total soluble carbohydrates were enhanced under drought, salinity and drought + salinity stresses”
t0“pistachio rootstocks”
Claim · model-written summary
Protein content decreased in all rootstocks.
- Taxon
- pistachioPistacia verae0
- Outcome
- protein contente0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the protein content decreased in all pistachio rootstocks”
Claim · model-written summary
Combined drought and salinity had the largest impact, followed by salinity and drought, apart from potassium and APX activity.
- Taxon
- pistachioPistacia verat0
- Outcome
- highest impactse0
- Qualifier
- except for the K + ion content and APX activitye0
- Comparator
- salinity > drought stressese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“except for the K + ion content and APX activity, the highest impacts was seen for drought + salinity > salinity > drought stresses”
t0“pistachio rootstocks”
Claim · model-written summary
Potassium content positively correlated with four antioxidant enzyme activities under combined stress.
- Taxon
- pistachioPistacia verat0
- Treatment
- drought + salinity stresse0
- Compound
- K + ione0
- Outcome
- ascorbate peroxidase, polyphenol oxidase, catalase and guaiacol peroxidase enzymes activitiese0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K + ion content has a positive correlation with the ascorbate peroxidase, polyphenol oxidase, catalase and guaiacol peroxidase enzymes activities under drought + salinity stress”
t0“pistachio rootstocks”
Claim · model-written summary
Tolerance ranked UCB‐1, Badami, Ghazvini, then Kale‐Ghouchi under combined stress.
- Taxon
- pistachioPistacia verae0
- Material
- UCB‐1 > Badami > Ghazvini > Kale‐Ghouchi cultivarse0
- Outcome
- most tolerant pistachio rootstockse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UCB‐1 > Badami > Ghazvini > Kale‐Ghouchi cultivars as the most tolerant pistachio rootstocks under drought + salinity stress”
The same questions in other papers
drought · physiology: pigments · Pistacia vera (pistachio)Results agree
1 paper in the same direction as this paper
- negative
salinity · physiology: pigments · Pistacia vera (pistachio)Results agree
7 papers in the same direction as this paper
- negative
- negative
- negative
4 papers more in this group
See all 8 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.