Abstract
Abstract Cotton (Gossypium hirsutum L.) is extremely sensitive to Al toxicity. Increasing Si concentration in solution has been reported to alleviate AI toxicity. In this investigation the effects of varying Si concentrations (700, 1400, and 2800 μM Si) on reactive Al (defined as Al reactive with aluminon during 10‐s reaction time, without acidification and heating) was studied in solutions containing either 50, 100 or 200 μM Al during 50 d of aging. An increase in Si concentration had negligible effects on the reactive Al in solutions with 50 or 100 μM Al. However, in solutions with 200 μM Al the reactive Al decreased by 6 to 15% with an increase in Si concentration from 0 to 2800 μM. The effects of either 700, 1400 or 2800 μM Si on root growth of Coker 208, Coker 315, DPL 90, McNair 235, Stoneville 506 and Tifcot 56 cotton cultivars were investigated in solutions containing either 0, 10, 20 or 40 μM Al with 500 μM Ca at pH 4.5. In solutions containing no Al, addition of 700 μM Si improved root growth by 69–87% in Coker 315, DPL 90 and McNair 235 cultivars but not in the other cultivars. In solutions containing 10 μM Al, an increase in Si concentration from 0 to 2800 μM improved the root growth by 15–17% in DPL 90 and McNair 235 cultivars only. An increase in Si additions failed to improve root growth of any of the cultivars in solutions with 20 or 40 μM Al.
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Claims 9
Claim · model-written summary
Increasing Si had negligible effects on reactive Al at 50 or 100 μM Al.
- Treatment
- Si concentratione0
- Outcome
- reactive Ale0
- Direction
- negligible effectse0
- Qualifier
- 50 or 100 μM Ale0
Not reportedTaxonComparator
Verbatim
e0“An increase in Si concentration had negligible effects on the reactive Al in solutions with 50 or 100 μM Al”
Claim · model-written summary
Increasing Si decreased reactive Al by 6 to 15% at 200 μM Al.
- Treatment
- Si concentratione0
- Outcome
- reactive Ale0
- Direction
- decreasede0
- Value
- 6 to 15%e0
- Qualifier
- 200 μM Ale0
Not reportedTaxonComparator
Verbatim
e0“in solutions with 200 μM Al the reactive Al decreased by 6 to 15% with an increase in Si concentration from 0 to 2800 μM”
Claim · model-written summary
At zero Al, 700 μM Si improved root growth by 69–87% in Coker 315.
- Taxon
- cotton
Gossypium hirsutumt0 - Material
- Coker 315e0
- Treatment
- 700 μM Sie0
- Outcome
- root growthe0
- Direction
- improvede0
- Value
- 69–87%e0
- Qualifier
- no Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In solutions containing no Al, addition of 700 μM Si improved root growth by 69–87% in Coker 315, DPL 90 and McNair 235 cultivars but not in the other cultivars”
t0“cotton”
Claim · model-written summary
At zero Al, 700 μM Si improved root growth by 69–87% in DPL 90.
- Taxon
- cottonGossypium hirsutumt0
- Material
- DPL 90e0
- Treatment
- 700 μM Sie0
- Outcome
- root growthe0
- Direction
- improvede0
- Value
- 69–87%e0
- Qualifier
- no Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In solutions containing no Al, addition of 700 μM Si improved root growth by 69–87% in Coker 315, DPL 90 and McNair 235 cultivars but not in the other cultivars”
t0“cotton”
Claim · model-written summary
At zero Al, 700 μM Si improved root growth by 69–87% in McNair 235.
- Taxon
- cottonGossypium hirsutumt0
- Material
- McNair 235e0
- Treatment
- 700 μM Sie0
- Outcome
- root growthe0
- Direction
- improvede0
- Value
- 69–87%e0
- Qualifier
- no Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In solutions containing no Al, addition of 700 μM Si improved root growth by 69–87% in Coker 315, DPL 90 and McNair 235 cultivars but not in the other cultivars”
t0“cotton”
Claim · model-written summary
Other cultivars showed no root growth improvement with 700 μM Si at zero Al.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 700 μM Sie0
- Outcome
- root growthe0
- Direction
- note0
- Qualifier
- other cultivarse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In solutions containing no Al, addition of 700 μM Si improved root growth by 69–87% in Coker 315, DPL 90 and McNair 235 cultivars but not in the other cultivars”
t0“cotton”
Claim · model-written summary
At 10 μM Al, raising Si from 0 to 2800 μM improved root growth by 15–17% in DPL 90.
- Taxon
- cottonGossypium hirsutumt0
- Material
- DPL 90e0
- Treatment
- Si concentration from 0 to 2800 μMe0
- Outcome
- root growthe0
- Direction
- improvede0
- Value
- 15–17%e0
- Qualifier
- 10 μM Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In solutions containing 10 μM Al, an increase in Si concentration from 0 to 2800 μM improved the root growth by 15–17% in DPL 90 and McNair 235 cultivars only”
t0“cotton”
Claim · model-written summary
At 10 μM Al, raising Si from 0 to 2800 μM improved root growth by 15–17% in McNair 235.
- Taxon
- cottonGossypium hirsutumt0
- Material
- McNair 235e0
- Treatment
- Si concentration from 0 to 2800 μMe0
- Outcome
- root growthe0
- Direction
- improvede0
- Value
- 15–17%e0
- Qualifier
- 10 μM Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In solutions containing 10 μM Al, an increase in Si concentration from 0 to 2800 μM improved the root growth by 15–17% in DPL 90 and McNair 235 cultivars only”
t0“cotton”
Claim · model-written summary
Increasing Si did not improve root growth in any cultivar at 20 or 40 μM Al.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Si additionse0
- Outcome
- root growthe0
- Direction
- failed to improvee0
- Qualifier
- 20 or 40 μM Ale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An increase in Si additions failed to improve root growth of any of the cultivars in solutions with 20 or 40 μM Al”
t0“cotton”
The same questions in other papers
silicon atom · nutrient: content · Gossypium hirsutum (cotton)Positive and negative results
2 in the opposite direction
- positive
- positive
silicon atom · growth · Gossypium hirsutum (cotton)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 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.