Abstract
Soil salinization limit crop yield and deteriorate product quality in arid and semi-arid agroecological regions. Under such conditions regulation of mineral nutrients may help to sustain crop productivity. Therefore, a pot experiment was carried out to identify optimal sulfur level and source for enhancing salt adaptability of sunflower (Helianthus annuus L.). A uniform salinity level of 100 mM NaCl was developed in each pot and then six S treatments viz. S0, control; S1, 20 mg sulfur kg -1 soil; S2, 40 mg sulfur kg -1 soil; S3, 60 mg sulfur kg -1 soil; S4, 80 mg sulfur kg -1 soil and S5, 100 mg sulfur kg -1 soil were applied by using elemental S and K2SO4 as sulfur source. Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower. Increasing sulfur levels in the form of K2SO4 depicted linear increase in plant growth and yield attributes up to 80 mg sulfur kg -1 soil beyond which there was decline in these growth characteristics suggesting that sulfur as K2SO4 at 80 mg sulfur kg -1 soil might be optimum in mitigating NaCl toxicity in sunflower.
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Claims 9
Claim · model-written summary
Sulfur supplementation reduced tissue sodium accumulation.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- Supplementation of sulfure0
- Outcome
- tissue Na + accumulatione0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower.”
Claim · model-written summary
Sulfur supplementation reduced electrolyte leakage.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Supplementation of sulfure0
- Outcome
- electrolyte leakagee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower.”
Claim · model-written summary
Sulfur supplementation increased tissue potassium.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Supplementation of sulfure0
- Outcome
- tissue K +e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower.”
Claim · model-written summary
Sulfur supplementation increased tissue calcium.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Supplementation of sulfure0
- Outcome
- Ca 2+e0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower.”
Claim · model-written summary
Sulfur supplementation increased sunflower relative water content.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Supplementation of sulfure0
- Outcome
- relative water contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower.”
Claim · model-written summary
Sulfur supplementation increased sunflower photosynthetic rate.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- Supplementation of sulfure0
- Outcome
- photosynthetic ratee0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Supplementation of sulfur caused reduction in tissue Na + accumulation and electrolyte leakage while increase in tissue K + and Ca 2+ with a subsequent increase in relative water content and photosynthetic rate of sunflower.”
Claim · model-written summary
Increasing K2SO4 supplied sulfur increased sunflower growth traits through 80 mg sulfur per kilogram soil, then traits declined.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- sulfur levels in the form of K2SO4e0
- Outcome
- plant growthe0
- Direction
- linear increasee0
- Qualifier
- beyond which there was decline in these growth characteristicse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing sulfur levels in the form of K2SO4 depicted linear increase in plant growth and yield attributes up to 80 mg sulfur kg -1 soil beyond which there was decline in these growth characteristics suggesting that sulfur as K2SO4 at 80 mg sulfur kg -1 soil might be optimum in mitigating NaCl toxicity in sunflower.”
Claim · model-written summary
Increasing K2SO4 supplied sulfur increased yield attributes through 80 mg sulfur per kilogram soil, then traits declined.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- sulfur levels in the form of K2SO4e0
- Outcome
- yield attributese0
- Direction
- linear increasee0
- Qualifier
- beyond which there was decline in these growth characteristicse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing sulfur levels in the form of K2SO4 depicted linear increase in plant growth and yield attributes up to 80 mg sulfur kg -1 soil beyond which there was decline in these growth characteristics suggesting that sulfur as K2SO4 at 80 mg sulfur kg -1 soil might be optimum in mitigating NaCl toxicity in sunflower.”
Claim · model-written summary
The authors suggest 80 mg sulfur per kilogram soil as K2SO4 may be optimal for reducing NaCl toxicity in sunflower.
- Taxon
- sunflowerHelianthus annuuse0
- Outcome
- sulfur as K2SO4 at 80 mg sulfur kg -1 soil might be optimum in mitigating NaCl toxicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sulfur as K2SO4 at 80 mg sulfur kg -1 soil might be optimum in mitigating NaCl toxicity in sunflower.”
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potassium sulfate · growth · Helianthus annuus (common sunflower)Results agree
2 papers in the same direction as this paper
- positive
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potassium sulfate · yield · Helianthus annuus (common sunflower)Results agree
4 papers in the same direction as this paper
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See all 5 papers →sulfur atom · nutrient: content · Helianthus annuus (common sunflower)Results agree
6 papers in the same direction as this paper
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See all 7 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.