Abstract
Drought stress is a major constraint for crop production in arid and semiarid regions, such as Iran. In thisstudy, the possibility of enhancing drought stress tolerance of sweet basil plant (Ocimum basilicum L.) byexogenous application of Salicylic acid (SA) was investigated. The layout was factorial experiment inrandomized complete block design (RCBD) with 3 levels of drought stress including stress-freeconditions, mild stress and severe stress and 3 concentrations of SA (including 0, 0.75 and 1.5 mM) asmain factors and 3 replicate. The statistical analysis showed that drought stress and application of SA hadsignificant effects on the morphological, physiological and biochemical parameters of the plant such asplant height, fresh and dry weight, relative water content (RWC), chlorophyll (Chl), proline andelectrolyte leakage (EL). Result showed that drought stress imposed negative effects on plant growth andproductivity. In drought conditions, growth parameters, Chl content, RWC reduced, but proline contentand EL increased. SA application significantly caused increasing of plant growth characters, photosyntheticpigments, RWC and proline and decreased EL. In this experiment, SA application withincreasing growth rate and changing plant physiological process decreased adverse effects of droughtstress on sweet basil plants.
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Claims 5
Claim · model-written summary
Drought reduced growth, chlorophyll and relative water content.
- Taxon
- sweet basil
Ocimum basilicumt0 - Treatment
- drought conditionse0
- Outcome
- growth parameters, Chl content, RWCe0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In drought conditions, growth parameters, Chl content, RWC reduced”
t0“Sweet Basil”
Claim · model-written summary
Drought increased proline and electrolyte leakage.
- Taxon
- Sweet BasilOcimum basilicumt0
- Treatment
- drought conditionse0
- Outcome
- proline contentand ELe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In drought conditions, growth parameters, Chl content, RWC reduced, but proline contentand EL increased.”
t0“Sweet Basil”
Claim · model-written summary
Salicylic acid increased growth characters, photosynthetic pigments and relative water content.
- Taxon
- Sweet BasilOcimum basilicumt0
- Treatment
- SA applicatione0
- Outcome
- plant growth characters, photosyntheticpigments, RWCe0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA application significantly caused increasing of plant growth characters, photosyntheticpigments, RWC and proline and decreased EL.”
t0“Sweet Basil”
Claim · model-written summary
Salicylic acid increased proline.
- Taxon
- Sweet BasilOcimum basilicumt0
- Treatment
- SA applicatione0
- Outcome
- prolinee0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA application significantly caused increasing of plant growth characters, photosyntheticpigments, RWC and proline and decreased EL.”
t0“Sweet Basil”
Claim · model-written summary
Salicylic acid decreased electrolyte leakage.
- Taxon
- Sweet BasilOcimum basilicumt0
- Treatment
- SA applicatione0
- Outcome
- ELe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA application significantly caused increasing of plant growth characters, photosyntheticpigments, RWC and proline and decreased EL.”
t0“Sweet Basil”
The same questions in other papers
salicylic acid · physiology: osmolytes · Ocimum basilicum (basil)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
salicylic acid · physiology: water · Ocimum basilicum (basil)Results agree
2 papers in the same direction as this paper
- positive
- positive
drought · physiology: osmolytes · Ocimum basilicum (basil)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
1 paper more in this group
See all 5 papers →drought · physiology: water · Ocimum basilicum (basil)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 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.