Abstract
The effects of silicon (Si) supplied in the form of potassium silicate (PS) were evaluated on epidemic components of powdery mildew of melon under greenhouse conditions. The PS was applied to the roots or to leaves. In the first experiment, epidemic components were evaluated after inoculation with Podosphaera xanthii . In the second experiment, the disease progress rate was evaluated on plants subjected to natural infection. The area under the disease progress curve was reduced by 65% and 73% in the foliar and root treatments, respectively, compared to control plants, as a consequence of reductions in infection efficiency, colony expansion rate, colony area, conidial production and disease progress rate. However, root application of PS was more effective than foliar application in reducing most of the epidemic components, except for infection efficiency. This can be explained by the high Si concentration in leaf tissues with root application, in contrast to the foliar treatment where Si was only deposited on the external leaf surfaces. The effects of PS reported in this study demonstrated that powdery mildew of melon can be controlled, and that the best results can be achieved when PS is supplied to the roots.
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Claims 7
Claim · model-written summary
Foliar potassium silicate reduced disease progress area by 65%.
- Taxon
- melon
.jpg?width=60)
Cucumis melot0 - Treatment
- foliare0
- Outcome
- area under the disease progress curvee0
- Direction
- reducede0
- Value
- 65%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The area under the disease progress curve was reduced by 65% and 73% in the foliar and root treatments, respectively, compared to control plants”
t0“powdery mildew on melon”
Claim · model-written summary
Root potassium silicate reduced disease progress area by 73%.
- Taxon
- melonCucumis melot0
- Treatment
- root treatmentse0
- Outcome
- area under the disease progress curvee0
- Direction
- reducede0
- Value
- 73%e0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The area under the disease progress curve was reduced by 65% and 73% in the foliar and root treatments, respectively, compared to control plants”
t0“powdery mildew on melon”
Claim · model-written summary
Potassium silicate reduced infection efficiency, colony expansion and colony area.
- Taxon
- melonCucumis melot0
- Treatment
- potassium silicatee1
- Outcome
- infection efficiency, colony expansion rate, colony areae0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reductions in infection efficiency, colony expansion rate, colony area, conidial production and disease progress rate”
e1“The effects of silicon (Si) supplied in the form of potassium silicate (PS)”
t0“powdery mildew on melon”
Claim · model-written summary
Potassium silicate reduced conidial production and disease progress rate.
- Taxon
- melonCucumis melot0
- Treatment
- potassium silicatee1
- Outcome
- conidial production and disease progress ratee0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reductions in infection efficiency, colony expansion rate, colony area, conidial production and disease progress rate”
e1“The effects of silicon (Si) supplied in the form of potassium silicate (PS)”
t0“powdery mildew on melon”
Claim · model-written summary
Root application reduced most epidemic components more effectively than foliar application, except infection efficiency.
- Taxon
- melonCucumis melot0
- Treatment
- root application of PSe0
- Outcome
- epidemic componentse0
- Direction
- more effectivee0
- Qualifier
- except for infection efficiencye0
- Comparator
- foliar applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root application of PS was more effective than foliar application in reducing most of the epidemic components, except for infection efficiency.”
t0“powdery mildew on melon”
Claim · model-written summary
Root application gave higher leaf silicon concentration; foliar silicon remained on leaf surfaces.
- Taxon
- melonCucumis melot0
- Outcome
- Si concentration in leaf tissuese0
- Direction
- highe0
- Comparator
- foliar treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high Si concentration in leaf tissues with root application, in contrast to the foliar treatment where Si was only deposited on the external leaf surfaces.”
t0“powdery mildew on melon”
Claim · model-written summary
The authors recommended supplying potassium silicate to roots for best disease control.
- Taxon
- melonCucumis melot0
- Outcome
- PS is supplied to the rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best results can be achieved when PS is supplied to the roots.”
t0“powdery mildew on melon”
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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.