Abstract
A pot experiment was conducted on a Mollisol from Nainital tarai to investigate the effect of selenium and sulphur application on dry matter yield, their content and ratios in sunflower plant parts. All possible combinations of four levels of selenium (0, 0.5, 1.0 and 2.0ppm) with three levels of sulphur (0, 40 and 80 ppm) were applied. The degree of chlorosis, cupping and stunting (plant injury) progressively increased, whereas dry matter yield and S: Se ratio decreased at budding stage with successive increase in selenium levels. A gradual improvement in plant health was observed with successive increase in sulphur levels. The maximum dry matter yield was observed with 1500: 1 ratio of S to Se in shoot at budding stage.
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Claims 5
Claim · model-written summary
Increasing selenium progressively increased sunflower chlorosis, cupping, and stunting.
- Taxon
- Sunflower
Helianthus annuust0 - Treatment
- selenium levelse0
- Outcome
- chlorosis, cupping and stuntinge0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The degree of chlorosis, cupping and stunting (plant injury) progressively increased, whereas dry matter yield and S: Se ratio decreased at budding stage with successive increase in selenium levels”
t0“Sunflower”
Claim · model-written summary
Increasing selenium decreased sunflower dry matter yield at budding.
- Taxon
- SunflowerHelianthus annuust0
- Organ / stage
- budding stagee0
- Treatment
- selenium levelse0
- Outcome
- dry matter yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry matter yield and S: Se ratio decreased at budding stage with successive increase in selenium levels”
t0“Sunflower”
Claim · model-written summary
Increasing selenium decreased sunflower S:Se ratio at budding.
- Taxon
- SunflowerHelianthus annuust0
- Organ / stage
- budding stagee0
- Treatment
- selenium levelse0
- Outcome
- S: Se ratioe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry matter yield and S: Se ratio decreased at budding stage with successive increase in selenium levels”
t0“Sunflower”
Claim · model-written summary
Increasing sulphur improved plant health.
- Taxon
- SunflowerHelianthus annuust0
- Treatment
- sulphur levelse0
- Outcome
- plant healthe0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A gradual improvement in plant health was observed with successive increase in sulphur levels”
t0“Sunflower”
Claim · model-written summary
Dry matter yield was maximal at a shoot S:Se ratio of 1500:1 at budding.
- Taxon
- SunflowerHelianthus annuust0
- Organ / stage
- shoot at budding stagee0
- Outcome
- maximum dry matter yielde0
- Direction
- maximume0
- Value
- 1500: 1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum dry matter yield was observed with 1500: 1 ratio of S to Se in shoot at budding stage”
t0“Sunflower”
The same questions in other papers
selenium atom · physiology: pigments · Helianthus annuus (common sunflower)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
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selenium atom · yield · Helianthus annuus (common sunflower)Positive and negative results
2 in the opposite direction
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selenium atom · nutrient: content · Helianthus annuus (common sunflower)Positive and negative results
4 in the opposite direction
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- positive
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1 paper more in this group
See all 5 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.