Abstract
The present investigation was conducted during 2014 and 2015 growing seasons in order to study the effects different drought stress levels in particular; 100%, 50% and 25% of the soil field capacity (FC) as well as the effects of arbuscular mycorrhizal (AM) inoculation on morphological and physiological performance and drought resistance of pomegranate seedlings. Drought stress decreased arbuscular mycorrhizal (AM) colonization. In both the AM and non AM, growth rate, leaf area, trunk cross sectional area and total dry weight decreased with increasing drought stress levels. AM colonization significantly stimulated plant growth indices and biomass production regardless of water status. Increasing drought stress levels tended to increase the proline accumulation, while the chlorophyll content, leaf total carbohydrates, and catalase activity (CAT) decreased. By contrast, AM colonization increased chlorophyll content, proline, total carbohydrates and CAT activity. A gradual decrease in leaf water potential (Ψ) and relative water content was evident with increasing drought stress levels. However, the seedlings inoculated with AM fungus had significantly higher leaf water potential (- 1.5MPa) compared to the non-inoculated seedlings (- 2.0MPa).
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Claims 8
Claim · model-written summary
Drought reduced AM colonization.
- Taxon
- POMEGRANATE SEEDLINGS
Punica granatumt0 - Treatment
- Drought stresse0
- Interactor
- arbuscular mycorrhizal (AM)e0symbiont
- Outcome
- arbuscular mycorrhizal (AM) colonizatione0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“Drought stress decreased arbuscular mycorrhizal (AM) colonization.”
Claim · model-written summary
Growth and biomass declined as drought increased.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Treatment
- drought stresse0
- Outcome
- growth rate, leaf area, trunk cross sectional area and total dry weighte0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“growth rate, leaf area, trunk cross sectional area and total dry weight decreased with increasing drought stress levels”
Claim · model-written summary
AM colonization stimulated growth and biomass.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Interactor
- AMe0symbiont
- Outcome
- plant growth indices and biomass productione0
- Direction
- stimulatede0
- Qualifier
- regardless of water statuse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“AM colonization significantly stimulated plant growth indices and biomass production regardless of water status.”
Claim · model-written summary
Proline increased with drought.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Treatment
- drought stresse0
- Outcome
- proline accumulatione0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“Increasing drought stress levels tended to increase the proline accumulation”
Claim · model-written summary
Chlorophyll, carbohydrates and catalase activity decreased with drought.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Organ / stage
- leafe0
- Outcome
- chlorophyll content, leaf total carbohydrates, and catalase activity (CAT)e0
- Direction
- decreasede0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“chlorophyll content, leaf total carbohydrates, and catalase activity (CAT) decreased”
Claim · model-written summary
AM colonization increased chlorophyll, proline and carbohydrates.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Interactor
- AMe0symbiont
- Outcome
- chlorophyll content, proline, total carbohydrates and CAT activitye0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“AM colonization increased chlorophyll content, proline, total carbohydrates and CAT activity.”
Claim · model-written summary
Leaf water potential and relative water content fell with drought.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Treatment
- drought stresse0
- Outcome
- leaf water potential (Ψ) and relative water contente0
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“A gradual decrease in leaf water potential (Ψ) and relative water content was evident with increasing drought stress levels.”
Claim · model-written summary
AM-inoculated seedlings had higher leaf water potential.
- Taxon
- POMEGRANATE SEEDLINGSPunica granatumt0
- Treatment
- inoculated with AM funguse0
- Interactor
- AM funguse0symbiont
- Outcome
- leaf water potentiale0
- Direction
- highere0
- Value
- - 1.5MPae0
- Qualifier
- - 2.0MPae0
- Comparator
- non-inoculated seedlingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“POMEGRANATE SEEDLINGS”
e0“seedlings inoculated with AM fungus had significantly higher leaf water potential (- 1.5MPa) compared to the non-inoculated seedlings (- 2.0MPa)”
The same questions in other papers
inoculation · physiology: water · Punica granatum (pomegranate)Results agree
1 paper in the same direction as this paper
- positive
mycorrhiza · physiology: water · Punica granatum (pomegranate)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.