Abstract
Abstract Pistacia atlantica Desf. is adapted to arid and semi-arid environments and is considered the best rootstock for Pistacia vera L. The physiological mechanisms responsible for the efficiency of P. atlantica as rootstock, compared to P. vera, are unknown. This study evaluated the effect of water stress and pistachio rootstock (Pistacia vera L. and Pistacia atlantica Desf.) on water status, highlighting the physiological aspects of the scion-rootstock interaction in Pistacia vera L. and Pistacia atlantica Desf. at the seedling stage under water stress. Individuals of Pistacia vera L. were grafted on Pistacia vera and Pistacia atlantica for 2 years, and subjected to two water regimes: irrigation and water stress for 7 weeks. Water status parameters (relative water content (RWC) and soil water content (SWC)), leaf gas exchange parameters (stomatal conductance, net photosynthesis, and transpiration rate), chlorophyll fluorescence transient (OJIP), maximum photosynthetic yield (Fv/Fm), and total chlorophyll content were measured weekly. The results revealed that although soil water content decreased significantly, both rootstocks maintained a high level of hydration, slightly reduced leaf gas exchange, and a stable maximum photosynthetic yield during the water stress, with no clear differences between them. These results suggest that Pistacia vera L. grafted on Pistacia vera L. and Pistacia atlantica Desf. tolerates water stress at the seedling stage in field conditions. These findings are very important in agriculture, and we recommend the investigation of drought stress effect at the tree stage and for a long duration of water stress.
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Claims 7
Claim · model-written summary
Soil water content decreased significantly under water stress.
- Taxon
- Pistacia vera L.
Pistacia verat0 - Treatment
- water stresst0
- Outcome
- soil water contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil water content decreased significantly”
t0“Water stress effect on grafted Pistacia vera L.”
Claim · model-written summary
Both rootstocks maintained high hydration during water stress.
- Taxon
- Pistacia vera L.Pistacia verat0
- Outcome
- high level of hydratione0
- Qualifier
- both rootstockse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both rootstocks maintained a high level of hydration”
t0“Pistacia vera L.”
Claim · model-written summary
Leaf gas exchange was slightly reduced during water stress.
- Taxon
- Pistacia vera L.Pistacia verat0
- Treatment
- Water stresst0
- Outcome
- leaf gas exchangee0
- Direction
- reducede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“slightly reduced leaf gas exchange”
t0“Water stress effect on grafted Pistacia vera L.”
Claim · model-written summary
Maximum photosynthetic yield remained stable during water stress.
- Taxon
- Pistacia vera L.Pistacia verat0
- Treatment
- water stresse0
- Outcome
- maximum photosynthetic yielde0
- Direction
- stablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a stable maximum photosynthetic yield during the water stress”
t0“Pistacia vera L.”
Claim · model-written summary
The two rootstocks showed no clear differences in their water-stress responses.
- Taxon
- Pistacia vera L.Pistacia verat0
- Outcome
- no clear differences between theme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with no clear differences between them”
t0“Pistacia vera L.”
Claim · model-written summary
The authors infer that both graft combinations tolerate water stress at the seedling stage in field conditions.
- Taxon
- Pistacia vera L.Pistacia verae0
- Organ / stage
- seedling stagee0
- Outcome
- tolerates water stresse0
- Setting
- field conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pistacia vera L. grafted on Pistacia vera L. and Pistacia atlantica Desf. tolerates water stress at the seedling stage in field conditions”
Claim · model-written summary
The authors recommend investigating longer drought exposure at the tree stage.
- Taxon
- Pistacia vera L.Pistacia verat0
- Outcome
- investigation of drought stress effect at the tree stage and for a long duration of water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we recommend the investigation of drought stress effect at the tree stage and for a long duration of water stress”
t0“Pistacia vera L.”
The same questions in other papers
drought · physiology: gas exchange · Pistacia vera (pistachio)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
drought · soil: physics · Pistacia vera (pistachio)Results agree
1 paper in the same direction as this paper
- negative
drought · physiology: photosynthesis · Pistacia vera (pistachio)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
See all 6 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.