Abstract
In order to study the effect of salinity stress, silicium nourishment and foliar application of zinc on growth, antioxidant enzyme activity and fatty acid profile of sunflower an experiment was conducted under controlled conditions. The sunflower plants were grown in a hydroponical system and nourished with Hoagland’s solution. Silicium was added to Hoagland’s solution at three levels: 0, 1 and 2 mM. Furthermore, salinity stress was induced by NaCl solution at three levels: 0, 100 and 200 mM. Zinc foliar application was performed at two levels: 0 and 0.04%. The results demonstrated that salinity stress significantly increased antioxidant enzyme activity, proline accumulation and oleic and linoleic acid while decreased weight of plants, chlorophyll content and euresic acid percentage. Also, silicium application increased fresh and dry weight of plants, proline accumulation and oleic acid but decreased euresic acid percentage. Zinc foliar application increased fresh and dry weight, catalase, superoxide dismutase, glutathione s-transferase activity and proline accumulation. Finally, it can be suggested that silicium application is useful under conditions of salt stress, especially in hydroponical systems.
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Claims 11
Claim · model-written summary
Salinity increased antioxidant enzyme activity and proline accumulation.
- Taxon
- sunflower
Helianthus annuust0 - Treatment
- salinity stresse0
- Outcome
- antioxidant enzyme activity, proline accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress significantly increased antioxidant enzyme activity, proline accumulation and oleic and linoleic acid while decreased weight of plants, chlorophyll content and euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Salinity increased oleic and linoleic acid.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- salinity stresse0
- Outcome
- oleic and linoleic acide0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress significantly increased antioxidant enzyme activity, proline accumulation and oleic and linoleic acid while decreased weight of plants, chlorophyll content and euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Salinity decreased plant weight and chlorophyll content.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- salinity stresse0
- Outcome
- weight of plants, chlorophyll contente0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress significantly increased antioxidant enzyme activity, proline accumulation and oleic and linoleic acid while decreased weight of plants, chlorophyll content and euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Salinity decreased euresic acid percentage.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- salinity stresse0
- Outcome
- euresic acid percentagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress significantly increased antioxidant enzyme activity, proline accumulation and oleic and linoleic acid while decreased weight of plants, chlorophyll content and euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Silicium increased fresh and dry plant weight.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- silicium applicatione0
- Outcome
- fresh and dry weight of plantse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“silicium application increased fresh and dry weight of plants, proline accumulation and oleic acid but decreased euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Silicium increased proline accumulation and oleic acid.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- silicium applicatione0
- Outcome
- proline accumulation and oleic acide0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“silicium application increased fresh and dry weight of plants, proline accumulation and oleic acid but decreased euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Silicium decreased euresic acid percentage.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- silicium applicatione0
- Outcome
- euresic acid percentagee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“silicium application increased fresh and dry weight of plants, proline accumulation and oleic acid but decreased euresic acid percentage”
t0“sunflower”
Claim · model-written summary
Foliar zinc increased fresh and dry weight.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Zinc foliar applicatione0
- Outcome
- fresh and dry weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc foliar application increased fresh and dry weight, catalase, superoxide dismutase, glutathione s-transferase activity and proline accumulation”
t0“sunflower”
Claim · model-written summary
Foliar zinc increased catalase, superoxide dismutase and glutathione s-transferase activity.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Zinc foliar applicatione0
- Outcome
- catalase, superoxide dismutase, glutathione s-transferase activitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc foliar application increased fresh and dry weight, catalase, superoxide dismutase, glutathione s-transferase activity and proline accumulation”
t0“sunflower”
Claim · model-written summary
Foliar zinc increased proline accumulation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Zinc foliar applicatione0
- Outcome
- proline accumulatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zinc foliar application increased fresh and dry weight, catalase, superoxide dismutase, glutathione s-transferase activity and proline accumulation”
t0“sunflower”
Claim · model-written summary
The authors recommend silicium under salt stress, particularly in hydroponic systems.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- silicium application is useful under conditions of salt stresse0
- Setting
- hydroponical systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“silicium application is useful under conditions of salt stress, especially in hydroponical systems”
t0“sunflower”
The same questions in other papers
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See all 12 papers →zinc atom · growth · Helianthus annuus (common sunflower)Results differ
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2 papers in the same direction as this paper
- positive
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application · growth · Helianthus annuus (common sunflower)Positive and negative results
72 papers in the same direction as this paper · 8 in the opposite direction
- negative
- no effect
- no effect
77 papers more in this group
See all 81 papers →application · physiology: antioxidant enzymes · Helianthus annuus (common sunflower)Results agree
7 papers in the same direction as this paper
- positive
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See all 8 papers →salinity · physiology: pigments · Helianthus annuus (common sunflower)Results agree
8 papers in the same direction as this paper
- negative
- negative
- negative
5 papers more in this group
See all 9 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.