Abstract
Due to the increased economic and social benefits of the strawberry crop yield in Egypt, more attention has been paid to control its pests and diseases. Leaf blight, caused by the fungus Phomopsis obscurans, is one of the important diseases of strawberry plants. Therefore, effect of silicon and potassium, sodium and calcium silicates, and a fungicide on Phomopsis leaf blight of strawberry under laboratory and field conditions was examined. Four concentrations, i.e., 0, 2, 4, and 6 g/l of silicon as well as potassium, sodium and calcium silicates could significantly reduce the linear growth of tested fungus in the laboratory test where complete inhibition of linear growth was obtained with 6 g/l. The other concentrations showed less but favorable effects. The highest reduction of disease severity was obtained with potassium silicate and calcium silicate separately applied as soil treatment combined with foliar spray which reduced the disease incidence by 83.3 and 86.7%, respectively. Other treatments showed significant (P ≤ 0.05) but less effect. The highest yield increase was obtained with potassium silicate and calcium silicate applied as soil treatment combined with foliar spray which increased fruit yield by 60 and 53.8%, respectively. All tested treatments increased (P ≤ 0.05) the activities of the peroxidase, polyphenol oxidase, and chitinase enzymes. All tested concentrations of silicon salts have suppressed the fungal growth and disease spread but with different degrees. The more the concentration, the better it suppresses the fungal growth and consequent effect on damaging strawberry plants. Potassium silicate and calcium silicate separately applied as soil treatment combined with foliar spray were the best in reducing the disease incidence and increasing crop yield. Potential implications of silicate salts on enhancing activities of the tested enzymes reflected their role in protection against such a plant disease.
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Claims 8
Claim · model-written summary
Silicon and three silicates significantly reduced fungal linear growth in laboratory tests.
- Taxon
- strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- silicon as well as potassium, sodium and calcium silicatese0
- Interactor
- Phomopsis obscuransParaphomopsis obscuranst0pathogen
- Outcome
- linear growth of tested funguse0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
e0“Four concentrations, i.e., 0, 2, 4, and 6 g/l of silicon as well as potassium, sodium and calcium silicates could significantly reduce the linear growth of tested fungus in the laboratory test”
t0“strawberry leaf blight disease caused by Phomopsis obscurans”
Claim · model-written summary
At 6 g/l, silicate treatment completely inhibited fungal linear growth.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- 6 g/le0
- Interactor
- Phomopsis obscuransParaphomopsis obscuranst0pathogen
- Outcome
- linear growthe0
- Direction
- complete inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“complete inhibition of linear growth was obtained with 6 g/l”
t0“strawberry leaf blight disease caused by Phomopsis obscurans”
Claim · model-written summary
Potassium silicate soil treatment plus foliar spray reduced strawberry disease incidence by 83.3%.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- potassium silicatee0
- Interactor
- Phomopsis obscuransParaphomopsis obscuranst0pathogen
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 83.3e0
- Qualifier
- soil treatment combined with foliar spraye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium silicate and calcium silicate separately applied as soil treatment combined with foliar spray which reduced the disease incidence by 83.3 and 86.7%, respectively”
t0“strawberry leaf blight disease caused by Phomopsis obscurans”
Claim · model-written summary
Calcium silicate soil treatment plus foliar spray reduced strawberry disease incidence by 86.7%.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- calcium silicatee0
- Interactor
- Phomopsis obscuransParaphomopsis obscuranst0pathogen
- Outcome
- disease incidencee0
- Direction
- reducede0
- Value
- 86.7%e0
- Qualifier
- soil treatment combined with foliar spraye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium silicate and calcium silicate separately applied as soil treatment combined with foliar spray which reduced the disease incidence by 83.3 and 86.7%, respectively”
t0“strawberry leaf blight disease caused by Phomopsis obscurans”
Claim · model-written summary
Potassium silicate soil treatment plus foliar spray increased strawberry fruit yield by 60%.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- potassium silicatee0
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 60e0
- Qualifier
- soil treatment combined with foliar spraye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium silicate and calcium silicate applied as soil treatment combined with foliar spray which increased fruit yield by 60 and 53.8%, respectively”
t0“strawberry leaf blight”
Claim · model-written summary
Calcium silicate soil treatment plus foliar spray increased strawberry fruit yield by 53.8%.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- calcium silicatee0
- Outcome
- fruit yielde0
- Direction
- increasede0
- Value
- 53.8%e0
- Qualifier
- soil treatment combined with foliar spraye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium silicate and calcium silicate applied as soil treatment combined with foliar spray which increased fruit yield by 60 and 53.8%, respectively”
t0“strawberry leaf blight”
Claim · model-written summary
All tested treatments increased strawberry peroxidase, polyphenol oxidase, and chitinase activities.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- All tested treatmentse0
- Gene
- peroxidase, polyphenol oxidase, and chitinase enzymese0
- Outcome
- activities of the peroxidase, polyphenol oxidase, and chitinase enzymese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All tested treatments increased (P ≤ 0.05) the activities of the peroxidase, polyphenol oxidase, and chitinase enzymes.”
t0“strawberry leaf blight”
Claim · model-written summary
Higher silicon salt concentration suppressed fungal growth more strongly.
- Taxon
- strawberryFragaria ×ananassat0
- Treatment
- concentratione0
- Interactor
- Phomopsis obscuransParaphomopsis obscuranst0pathogen
- Outcome
- fungal growthe0
- Direction
- suppressese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The more the concentration, the better it suppresses the fungal growth”
t0“strawberry leaf blight disease caused by Phomopsis obscurans”
The same questions in other papers
silicate(4-) · yield · Fragaria x ananassa (strawberry)Results agree
1 paper in the same direction as this paper
- positive
calcium silicate · yield · Fragaria x ananassa (strawberry)Results agree
1 paper in the same direction as this paper
- positive
potassium · yield · Fragaria x ananassa (strawberry)Positive and negative results
17 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- no effect
- no effect
22 papers more in this group
See all 26 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.