Abstract
The surface modification of barley seeds with micro additives of silica sol based on hydrolyzed tetraethoxysilane containing various amounts (0.001–10 000 mg/L) of maghemite (γ-Fe2O3)–magnetite (Fe3O4) magnetic nanoparticles affects the interaction between the seeds and aqueous medium. The increase in seed weight (water absorption) depends nonlinearly on the amount of added γ-Fe2O3–Fe3O4 (the maximum increase being observed at its content of about 0.1 mg/L in the silica sol), which contributes to a more pronounced trend towards better seed germination. Furthermore, the seeds are found to have a stabilizing (buffer) effect on the acid–base properties of the aqueous medium within 5 min after they were dipped into water: they cause a certain increase in water pH in the case when the initial pH is < 7 and a decrease in water pH when the initial pH is > 7.
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Claims 5
Claim · model-written summary
Seed weight (water absorption) of barley seeds increases nonlinearly with the amount of added magnetic nanoparticles, with the maximum increase at about 0.1 mg/L in the silica sol.
- Taxon
- barley seeds
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- the amount of addede1
- Outcome
- seed weight (water absorption)e1
- Direction
- increasee1
- Qualifier
- about 0.1 mg/L in the silica sole2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The surface modification of barley seeds”
e1“The increase in seed weight (water absorption) depends nonlinearly on the amount of added”
e2“the maximum increase being observed at its content of about 0.1 mg/L in the silica sol”
Claim · model-written summary
Silica sol with magnetic nanoparticles shows a more pronounced trend towards better barley seed germination.
- Taxon
- barley seedsHordeum vulgaree0
- Treatment
- silica sole2
- Outcome
- seed germinatione3
- Direction
- bettere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The surface modification of barley seeds”
e2“the maximum increase being observed at its content of about 0.1 mg/L in the silica sol”
e3“which contributes to a more pronounced trend towards better seed germination”
Claim · model-written summary
Barley seeds increase water pH when the initial pH is below 7.
- Taxon
- barley seedsHordeum vulgaree0
- Outcome
- water pHe4
- Direction
- increasee4
- Qualifier
- the initial pH is < 7e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The surface modification of barley seeds”
e4“they cause a certain increase in water pH in the case when the initial pH is < 7”
Claim · model-written summary
Barley seeds decrease water pH when the initial pH is above 7.
- Taxon
- barley seedsHordeum vulgaree0
- Outcome
- water pHe5
- Direction
- decreasee5
- Qualifier
- the initial pH is > 7e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The surface modification of barley seeds”
e5“a decrease in water pH when the initial pH is > 7”
Claim · model-written summary
Barley seeds have a stabilizing (buffer) effect on the acid-base properties of the aqueous medium within 5 min of immersion.
- Taxon
- barley seedsHordeum vulgaree0
- Outcome
- stabilizing (buffer) effecte6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The surface modification of barley seeds”
e6“the seeds are found to have a stabilizing (buffer) effect on the acid”
The same questions in other papers
silicon dioxide · growth · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- positive
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.