Abstract
Drought stress causes physiological disorders and growth restriction, leading to a decrease in crop productivity in the field.Foliar spray of salicylic acid may reduce the adverse effects of this stress on plant performance.Thus, this experiment was laid out as split plot with RCB design in three replicates to assess changes in morpho-physiological traits and essential oil production of dill (Anethum graveolens L.) seeds in response to irrigation intervals (water supply after 70, 100, 130, 160 mm evaporation) and foliar spray of water (control) and salicylic acid (0.6, 1.2 mM).The results showed that, plant height, plant biomass, seeds per umbel and plant were diminished due to water deficit, leading to a decline in seed yield.1000-seed weight was slightly increased under stress, indicating the extent of drought tolerance of dill plants.Application of salicylic acid improved plant height, branches per plant, leaves per plant, umbels per plant, 1000-seed weight, plant biomass and finally seed yield under different irrigation intervals, especially under water limitation.Essential oil content and yield of seeds were increased with decreasing water supply up to moderate stress.The percentage and yield of essential oil were enhanced up to 54 days after flowering, and thereafter were slightly reduced.In general, application of 1.2 mM salicylic acid on non-stressed and drought-stressed plants was the superior treatment to improve field performance and essential oil production of dill.Therefore, drought tolerance and performance of plants can be promoted by salicylic acid treatment.
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Claims 9
Claim · model-written summary
Water deficit diminished dill height, biomass and seeds per umbel and plant.
- Taxon
- dill
Anethum graveolense1 - Treatment
- water deficite0
- Outcome
- plant height, plant biomass, seeds per umbel and plante0
- Direction
- diminishede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height, plant biomass, seeds per umbel and plant were diminished due to water deficit”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Water deficit decreased dill seed yield.
- Taxon
- dillAnethum graveolense1
- Treatment
- water deficite0
- Outcome
- seed yielde0
- Direction
- declinee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“water deficit, leading to a decline in seed yield”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Stress slightly increased 1000-seed weight.
- Taxon
- dillAnethum graveolense1
- Treatment
- stresse0
- Outcome
- 1000-seed weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“1000-seed weight was slightly increased under stress”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Salicylic acid improved dill height, branches, leaves and umbels across irrigation intervals.
- Taxon
- dillAnethum graveolense1
- Treatment
- salicylic acide0
- Outcome
- plant height, branches per plant, leaves per plant, umbels per plante0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of salicylic acid improved plant height, branches per plant, leaves per plant, umbels per plant, 1000-seed weight, plant biomass and finally seed yield under different irrigation intervals”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Salicylic acid improved 1000-seed weight, biomass and seed yield.
- Taxon
- dillAnethum graveolense1
- Treatment
- salicylic acide0
- Outcome
- 1000-seed weight, plant biomass and finally seed yielde0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of salicylic acid improved plant height, branches per plant, leaves per plant, umbels per plant, 1000-seed weight, plant biomass and finally seed yield under different irrigation intervals”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Moderate reduction in water supply increased seed essential oil content and yield.
- Taxon
- dillAnethum graveolense1
- Treatment
- decreasing water supplye0
- Outcome
- Essential oil content and yield of seedse0
- Direction
- increasede0
- Qualifier
- up to moderate stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Essential oil content and yield of seeds were increased with decreasing water supply up to moderate stress”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Essential oil percentage and yield increased up to 54 days after flowering.
- Taxon
- dillAnethum graveolense1
- Outcome
- percentage and yield of essential oile0
- Direction
- enhancede0
- Qualifier
- up to 54 days after floweringe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The percentage and yield of essential oil were enhanced up to 54 days after flowering”
e1“dill (Anethum graveolens L.)”
Claim · model-written summary
Essential oil percentage and yield declined slightly after 54 days after flowering.
- Taxon
- dillAnethum graveolense2
- Outcome
- percentage and yield of essential oile1
- Direction
- reducede0
- Qualifier
- thereaftere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“up to 54 days after flowering, and thereafter were slightly reduced”
e1“The percentage and yield of essential oil”
e2“dill (Anethum graveolens L.)”
Claim · model-written summary
The authors identified 1.2 mM salicylic acid as the superior treatment for field performance and essential oil production.
- Taxon
- dillAnethum graveolense0
- Treatment
- 1.2 mM salicylic acide0
- Outcome
- application of 1.2 mM salicylic acide0
- Qualifier
- non-stressed and drought-stressed plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of 1.2 mM salicylic acid on non-stressed and drought-stressed plants was the superior treatment to improve field performance and essential oil production of dill”
The same questions in other papers
salicylic acid · growth · Anethum graveolens (dill)Results agree
1 paper in the same direction as this paper
- positive
salicylic acid · yield · Anethum graveolens (dill)Results agree
1 paper in the same direction as this paper
- positive
drought · yield · Anethum graveolens (dill)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- negative
irrigation · quality: oil · Anethum graveolens (dill)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
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.