Abstract
Most of the researches on Salicylic acid (SA) have focused on postharvest application or acquiring stress resistance, while studies on its effect on plant growth, secondary metabolites and fruit quality are limited. SA as foliar application (0, 150, 300 and 450 mg/L) at different plant growth stages on fruit yield, secondary metabolites and quality features of tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions were evaluated. The highest fruit yield per plant (about 1.3-fold greater than control) was obtained from 300 mg/L SA when applied three weeks after fruit set. Comparing to control plants, the highest fruit firmness, 10 days prolonged storability, highest total phenolics (22.6 mg gallic acid equivalent per 100 g fw); and highest antioxidant activity (65.11) were observed when 450 mg/L SA applied at fruiting stage and 3 weeks later. An increasing pattern in ascorbic acid content was observed with increasing SA concentration irrespective to application time. The same concentration effect was observed in flavonoid content when plants treated at 3 weeks after fruiting. The highest effect of flavonoids on antioxidant activity was calculated using Pearson correlation (r=0.82). SA concentrations greater than 450 mg/L showed significant adverse effects on all measured traits. The effect of exogenous SA on tomato plant depends on the developmental stage and SA concentrations tested. Improved fruit quality factors may happen in a certain concentration range, while over that may have negative or adverse effect.
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Claims 9
Claim · model-written summary
Foliar salicylic acid at 300 mg/L applied three weeks after fruit set gave about 1.3-fold greater fruit yield per plant than control.
- Taxon
- tomato
Solanum lycopersicume0 - Material
- Kardelene0
- Treatment
- 300 mg/L SA when applied three weeks after fruit sete1
- Outcome
- fruit yield per plante1
- Direction
- greatere1
- Value
- about 1.3-folde1
- Comparator
- controle1
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e1“The highest fruit yield per plant (about 1.3-fold greater than control) was obtained from 300 mg/L SA when applied three weeks after fruit set”
Claim · model-written summary
Foliar salicylic acid at 450 mg/L applied at fruiting stage and three weeks later gave the highest tomato fruit firmness relative to control plants.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Kardelene0
- Treatment
- 450 mg/L SA applied at fruiting stage and 3 weeks latere6
- Outcome
- fruit firmnesse2
- Direction
- higheste2
- Comparator
- control plantse2
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e2“Comparing to control plants, the highest fruit firmness”
e6“450 mg/L SA applied at fruiting stage and 3 weeks later”
Claim · model-written summary
Foliar salicylic acid at 450 mg/L applied at fruiting stage and three weeks later prolonged tomato storability by 10 days relative to control plants.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Kardelene0
- Treatment
- 450 mg/L SA applied at fruiting stage and 3 weeks latere6
- Outcome
- storabilitye3
- Direction
- prolongede3
- Value
- 10 dayse3
- Comparator
- control plantse2
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e2“Comparing to control plants”
e3“10 days prolonged storability”
e6“450 mg/L SA applied at fruiting stage and 3 weeks later”
Claim · model-written summary
Foliar salicylic acid at 450 mg/L applied at fruiting stage and three weeks later gave the highest total phenolics, 22.6 mg gallic acid equivalent per 100 g fresh weight, relative to control plants.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Kardelene0
- Treatment
- 450 mg/L SA applied at fruiting stage and 3 weeks latere6
- Outcome
- total phenolicse4
- Direction
- higheste4
- Value
- 22.6 mg gallic acid equivalent per 100 g fwe4
- Comparator
- control plantse2
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e2“Comparing to control plants”
e4“highest total phenolics (22.6 mg gallic acid equivalent per 100 g fw)”
e6“450 mg/L SA applied at fruiting stage and 3 weeks later”
Claim · model-written summary
Foliar salicylic acid at 450 mg/L applied at fruiting stage and three weeks later gave the highest antioxidant activity, 65.11, relative to control plants.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Kardelene0
- Treatment
- 450 mg/L SA applied at fruiting stage and 3 weeks latere6
- Outcome
- antioxidant activitye5
- Direction
- higheste5
- Value
- 65.11e5
- Comparator
- control plantse2
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e2“Comparing to control plants”
e5“highest antioxidant activity (65.11)”
e6“450 mg/L SA applied at fruiting stage and 3 weeks later”
Claim · model-written summary
Ascorbic acid content of tomato increased with increasing salicylic acid concentration, irrespective of application time.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- increasing SA concentratione7
- Outcome
- ascorbic acid contente7
- Direction
- increasinge7
- Qualifier
- irrespective to application timee7
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e7“An increasing pattern in ascorbic acid content was observed with increasing SA concentration irrespective to application time”
Claim · model-written summary
Flavonoid content of tomato increased with salicylic acid concentration when plants were treated three weeks after fruiting.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- treated at 3 weeks after fruitinge1
- Outcome
- flavonoid contente1
- Direction
- increaseinferrede1
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tomato (Solanum lycopersicum L. cv. Kardelen) under greenhouse conditions”
e1“The same concentration effect was observed in flavonoid content when plants treated at 3 weeks after fruiting”
Claim · model-written summary
Flavonoids were positively correlated with antioxidant activity in tomato (Pearson r = 0.82).
- Taxon
- tomatoSolanum lycopersicumt0
- Compound
- flavonoidse1
- Outcome
- antioxidant activitye1
- Direction
- increaseinferrede1
- Value
- r=0.82e1
- Qualifier
- Pearson correlatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The highest effect of flavonoids on antioxidant activity was calculated using Pearson correlation (r=0.82)”
t0“greenhouse tomato”
Claim · model-written summary
Salicylic acid concentrations above 450 mg/L had significant adverse effects on all measured tomato traits.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- SA concentrations greater than 450 mg/Le1
- Outcome
- all measured traitse1
- Direction
- adversee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“SA concentrations greater than 450 mg/L showed significant adverse effects on all measured traits”
t0“greenhouse tomato”
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