Abstract
Abstract Salicylic acid (SA) has been considered to attenuate the effects of abiotic stresses on plants, including water deficit that intensely affects the growth and production of plants. The goal of this work was to evaluate the role of SA in the alleviation of water stress in watermelon seedlings on a morphophysiological and biochemical level. The experiment consisted of application of SA at concentrations of 0, 0.25, 0.50, 0.75 and 1.0 μmol L −1 to leaves of watermelon seedlings grown in three levels of water retention (100%, 75% and 50% WRL). To evaluate the effect on morphophysiological and biochemical aspects, the plant height, leaf area, shoot and root dry weight, chlorophyll index, relative water content, electrolyte leakage, protein content, amino acids, proline, carbohydrates, sucrose and starch concentration variables were determined. All variables were influenced by the SA concentrations and WRL, with statistically significant interaction between these factors for all except root dry weight. SA promotes increases in the concentration of organic solutes and reduces the rate of electrolyte leakage in watermelon seedlings, thus, supporting metabolism and growth of plants under stress conditions resulting from water deficit.
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Claims 5
Claim · model-written summary
SA concentration and water retention level influenced the measured morphological and biochemical variables.
- Taxon
- watermelon seedlings
Citrullus lanatuse0 - Treatment
- SA concentrations and WRLe3
- Outcome
- All variablese3
- Qualifier
- plant height, leaf area, shoot and root dry weight, chlorophyll index, relative water content, electrolyte leakage, protein content, amino acids, proline, carbohydrates, sucrose and starch concentration variablese4
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in watermelon seedlings on a morphophysiological and biochemical level”
e1“application of SA at concentrations of 0, 0.25, 0.50, 0.75 and 1.0 μmol L −1”
e2“three levels of water retention (100%, 75% and 50% WRL)”
e3“All variables were influenced by the SA concentrations and WRL”
e4“plant height, leaf area, shoot and root dry weight, chlorophyll index, relative water content, electrolyte leakage, protein content, amino acids, proline, carbohydrates, sucrose and starch concentration variables”
Claim · model-written summary
SA and water retention interacted significantly for the measured variables except root dry weight.
- Taxon
- watermelon seedlingsCitrullus lanatuse0
- Treatment
- SA concentrations and WRLe2
- Outcome
- interaction between these factorse1
- Qualifier
- except root dry weighte1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in watermelon seedlings on a morphophysiological and biochemical level”
e1“statistically significant interaction between these factors for all except root dry weight”
e2“SA concentrations and WRL”
Claim · model-written summary
SA increased organic solute concentrations in water-stressed watermelon seedlings.
- Taxon
- watermelon seedlingsCitrullus lanatuse0e1
- Treatment
- SAe1
- Outcome
- concentration of organic solutese1
- Direction
- increasese1
- Qualifier
- water deficite1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in watermelon seedlings, thus, supporting metabolism”
e1“SA promotes increases in the concentration of organic solutes and reduces the rate of electrolyte leakage in watermelon seedlings, thus, supporting metabolism and growth of plants under stress conditions resulting from water deficit.”
Claim · model-written summary
SA reduced electrolyte leakage in water-stressed watermelon seedlings.
- Taxon
- watermelon seedlingsCitrullus lanatuse0e1
- Treatment
- SAe1
- Outcome
- rate of electrolyte leakagee1
- Direction
- reducese1
- Qualifier
- water deficite1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in watermelon seedlings, thus, supporting metabolism”
e1“SA promotes increases in the concentration of organic solutes and reduces the rate of electrolyte leakage in watermelon seedlings, thus, supporting metabolism and growth of plants under stress conditions resulting from water deficit.”
Claim · model-written summary
The authors inferred that SA supports watermelon metabolism and growth under water deficit.
- Taxon
- watermelon seedlingsCitrullus lanatuse0
- Treatment
- SAe2
- Outcome
- metabolism and growthe1
- Direction
- supportinge1
- Qualifier
- water deficite1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in watermelon seedlings, thus, supporting metabolism”
e1“thus, supporting metabolism and growth of plants under stress conditions resulting from water deficit.”
e2“SA promotes increases”
The same questions in other papers
salicylic acid · physiology: oxidative · Citrullus lanatus (watermelon)Results agree
3 papers in the same direction as this paper
- positive
- 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.