Abstract
To evaluate the effect of salicylic acid and ascorbic acid foliar application on a number of agronomic and antioxidant activities of sunflower, an experiment was conducted at research farm of Mahabad city, locted in the south of West Azerbaijan Province, Iran during 2016-2018 cropping seasons. The experiment was laid out as a split-plot design based on a completely randomized block design with three replications. Irrigation regimes (irrigation after 60 mm and irrigation after 120 mm evaporation from class A pan respectively) were established as main plots and the foliar applications of ascorbic acid (control, 50 and 100 ppm) and salicylic acid (control, 100 and 200 ppm) were the sub-plots. In the present study, the highest amount of proline content and activity of antioxidant enzymes was recorded under water deficit conditions and foliar application of 100 ppm salicylic acid. Applying salicylic acid increased grain yield under both normal irrigation and water deficit conditions. Also, the highest proline content and activity of antioxidant enzymes were under the treatment of water deficit and application of 50 ppm ascorbic acid. The results showed no significant difference between the combined foliar application of salicylic acid and ascorbic acid in terms of grain yield and oil percentage with their separate application. Therefore, simultaneous use of these two substances under normal irrigation and water deficit conditions was not economical and not recommended.
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Claims 6
Claim · model-written summary
Under water deficit, 100 ppm salicylic acid gave the highest proline content and antioxidant enzyme activity.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- foliar application of 100 ppm salicylic acide0
- Outcome
- proline content and activity of antioxidant enzymese0
- Direction
- higheste0
- Qualifier
- water deficit conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest amount of proline content and activity of antioxidant enzymes was recorded under water deficit conditions and foliar application of 100 ppm salicylic acid.”
t0“Sunflower”
Claim · model-written summary
Salicylic acid increased sunflower grain yield under normal irrigation and water deficit.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- salicylic acide0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- both normal irrigation and water deficit conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applying salicylic acid increased grain yield under both normal irrigation and water deficit conditions.”
t0“Sunflower”
Claim · model-written summary
Under water deficit, 50 ppm ascorbic acid gave the highest proline content and antioxidant enzyme activity.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- application of 50 ppm ascorbic acide0
- Outcome
- proline content and activity of antioxidant enzymese0
- Direction
- higheste0
- Qualifier
- water deficite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest proline content and activity of antioxidant enzymes were under the treatment of water deficit and application of 50 ppm ascorbic acid.”
t0“Sunflower”
Claim · model-written summary
Combined salicylic and ascorbic acid application did not differ significantly from separate application for grain yield.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- combined foliar application of salicylic acid and ascorbic acide0
- Outcome
- grain yielde0
- Direction
- no significant differencee0
- Comparator
- their separate applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed no significant difference between the combined foliar application of salicylic acid and ascorbic acid in terms of grain yield and oil percentage with their separate application.”
t0“Sunflower”
Claim · model-written summary
Combined acid application did not differ significantly from separate application for oil percentage.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- combined foliar application of salicylic acid and ascorbic acide0
- Outcome
- oil percentagee0
- Direction
- no significant differencee0
- Comparator
- their separate applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed no significant difference between the combined foliar application of salicylic acid and ascorbic acid in terms of grain yield and oil percentage with their separate application.”
t0“Sunflower”
Claim · model-written summary
The authors do not recommend simultaneous salicylic and ascorbic acid use because it was uneconomical.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- simultaneous use of these two substancese0
- Qualifier
- not economical and not recommendede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Therefore, simultaneous use of these two substances under normal irrigation and water deficit conditions was not economical and not recommended.”
t0“Sunflower”
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See all 158 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.