Abstract
SummarySalicylic acid (SA) is a common, plant-produced signal molecule that is responsible for inducing tolerance to a number of biotic and abiotic stresses. An experiment was therefore conducted to test whether the application of SA at various concentrations (0, 0.25, 0.50, 0.75, or 1.00 mM) by seed soaking, or as a foliar spray would protect cucumber (Cucumis sativus L.) seedlings subjected to drought stress. Thirty-six-day-old seedlings (n = 12 seedlings per treatment) were exposed to drought stress for 14 d. Pretreatment with SA improved the majority of the physiological (e.g., relative chlorophyll content and chlorophyll fluorescence ratio) and morphological parameters (e.g., shoot and root fresh and dry weights) measured in cucumber seedlings subjected to drought stress. SA ameliorated the injuries caused by drought stress by increasing shoot tissue proline contents and preventing an increase in leaf electrolyte leakage. SA was more effective at increasing the drought tolerance of cucumber seedlings when applied using the seed-soaking method, rather than as a foliar spray. The best drought protection appeared to be obtained when seeds were soaked in 0.50 mM SA.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 6
Claim · model-written summary
Salicylic acid pretreatment improved relative chlorophyll content and chlorophyll fluorescence ratio under drought.
- Taxon
- cucumber
Cucumis sativuse0 - Organ / stage
- seedlingse0
- Treatment
- Pretreatment with SAe0
- Outcome
- relative chlorophyll content and chlorophyll fluorescence ratioe0
- Direction
- improvede0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment with SA improved the majority of the physiological (e.g., relative chlorophyll content and chlorophyll fluorescence ratio) and morphological parameters (e.g., shoot and root fresh and dry weights) measured in cucumber seedlings subjected to drought stress.”
Claim · model-written summary
Salicylic acid pretreatment improved shoot and root fresh and dry weights under drought.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- shoot and roote0
- Treatment
- Pretreatment with SAe0
- Outcome
- shoot and root fresh and dry weightse0
- Direction
- improvede0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretreatment with SA improved the majority of the physiological (e.g., relative chlorophyll content and chlorophyll fluorescence ratio) and morphological parameters (e.g., shoot and root fresh and dry weights) measured in cucumber seedlings subjected to drought stress.”
Claim · model-written summary
Salicylic acid increased shoot tissue proline content in drought-stressed cucumber.
- Taxon
- cucumberCucumis sativuse1
- Organ / stage
- shoot tissuee0
- Treatment
- SAe0
- Outcome
- shoot tissue proline contentse0
- Direction
- increasinge0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA ameliorated the injuries caused by drought stress by increasing shoot tissue proline contents and preventing an increase in leaf electrolyte leakage.”
e1“cucumber (Cucumis sativus L.) seedlings”
Claim · model-written summary
Salicylic acid prevented an increase in leaf electrolyte leakage under drought.
- Taxon
- cucumberCucumis sativuse1
- Organ / stage
- leafe0
- Treatment
- SAe0
- Outcome
- leaf electrolyte leakagee0
- Direction
- preventing an increasee0
- Qualifier
- drought stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA ameliorated the injuries caused by drought stress by increasing shoot tissue proline contents and preventing an increase in leaf electrolyte leakage.”
e1“cucumber (Cucumis sativus L.) seedlings”
Claim · model-written summary
Seed soaking with salicylic acid gave better drought tolerance than foliar spray.
- Taxon
- cucumberCucumis sativuse0
- Organ / stage
- seedlingse0
- Treatment
- seed-soaking methode0
- Outcome
- drought tolerancee0
- Direction
- more effective at increasinge0
- Comparator
- foliar spraye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SA was more effective at increasing the drought tolerance of cucumber seedlings when applied using the seed-soaking method, rather than as a foliar spray.”
Claim · model-written summary
The best drought protection appeared after soaking seeds in 0.50 mM salicylic acid.
- Taxon
- cucumberCucumis sativuse1
- Organ / stage
- seedse0
- Treatment
- soaked in 0.50 mM SAe0
- Outcome
- drought protectione0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The best drought protection appeared to be obtained when seeds were soaked in 0.50 mM SA.”
e1“cucumber (Cucumis sativus L.) seedlings”
The same questions in other papers
salicylic acid · physiology: osmolytes · Cucumis sativus (cucumber)Results differ
11 papers in the same direction as this paper
- positive
- positive
- positive
8 papers more in this group
See all 12 papers →salicylic acid · growth · Cucumis sativus (cucumber)Results differ
27 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
25 papers more in this group
See all 29 papers →salicylic acid · physiology: oxidative · Cucumis sativus (cucumber)Results differ
27 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
25 papers more in this group
See all 29 papers →salicylic acid · control · Cucumis sativus (cucumber)Results agree
2 papers in the same direction as this paper
- positive
- positive
salicylic acid · physiology: photosynthesis · Cucumis sativus (cucumber)Results agree
12 papers in the same direction as this paper
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →application · control · Cucumis sativus (cucumber)Positive and negative results
9 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
9 papers more in this group
See all 13 papers →seed treatment · tolerance: abiotic · Cucumis sativus (cucumber)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
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.