Abstract
Blast-resistant, partially resistant, and susceptible cultivars of rice were planted in soil amended with Si at 0, 500, or 1,000 kg/ha at two locations in eastern Colombia to assess differential responses to leaf blast, neck blast, and leaf scald, and to examine the quantity and quality of grains harvested. Leaf and neck blast on partially resistant and susceptible cultivars were reduced by Si as the rate of Si was increased. Depending on the location, the level of severity of leaf and neck blast on partially resistant cultivars, when fertilized with Si at 500 or 1,000 kg/ha, was lowered to that of resistant cultivars without Si. At both locations, yields were increased by as much as 42%, depending on the cultivar, by Si applied at 1,000 kg/ha. In general, high rates of Si reduced the number of broken grains harvested. Grain discoloration, regardless of cultivar or location, was reduced by as much as 70% at the high rate of Si. The application of Si to complement host resistance to blast and scald appears to be an effective strategy for disease management in rice and provides the added benefit of improving the quantity and quality of rice yields.
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Claims 8
Claim · model-written summary
Silicon reduced leaf blast on partially resistant and susceptible rice cultivars as its rate increased.
- Taxon
- Rice
Oryza sativat0 - Material
- partially resistant and susceptible cultivarse0
- Treatment
- Sie0
- Outcome
- leaf blaste1
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Leaf and neck blast on partially resistant and susceptible cultivars were reduced by Si as the rate of Si was increased.”
e1“leaf blast, neck blast”
Claim · model-written summary
Silicon reduced neck blast on partially resistant and susceptible cultivars as its rate increased.
- Taxon
- RiceOryza sativat0
- Material
- partially resistant and susceptible cultivarse0
- Treatment
- Sie0
- Outcome
- neck blaste0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Leaf and neck blast on partially resistant and susceptible cultivars were reduced by Si as the rate of Si was increased.”
Claim · model-written summary
At some locations, silicon at 500 or 1,000 kg/ha lowered leaf blast severity in partially resistant cultivars to that of resistant cultivars without silicon.
- Taxon
- RiceOryza sativat0
- Material
- partially resistant cultivarse0
- Treatment
- Si at 500 or 1,000 kg/hae0
- Outcome
- leaf blaste1
- Direction
- lowerede0
- Comparator
- resistant cultivars without Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Depending on the location, the level of severity of leaf and neck blast on partially resistant cultivars, when fertilized with Si at 500 or 1,000 kg/ha, was lowered to that of resistant cultivars without Si.”
e1“leaf blast, neck blast”
Claim · model-written summary
At some locations, silicon at 500 or 1,000 kg/ha lowered neck blast severity in partially resistant cultivars to that of resistant cultivars without silicon.
- Taxon
- RiceOryza sativat0
- Material
- partially resistant cultivarse0
- Treatment
- Si at 500 or 1,000 kg/hae0
- Outcome
- neck blaste0
- Direction
- lowerede0
- Comparator
- resistant cultivars without Sie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Depending on the location, the level of severity of leaf and neck blast on partially resistant cultivars, when fertilized with Si at 500 or 1,000 kg/ha, was lowered to that of resistant cultivars without Si.”
Claim · model-written summary
Silicon at 1,000 kg/ha increased rice yield by up to 42%, depending on cultivar.
- Taxon
- RiceOryza sativat0
- Treatment
- Si applied at 1,000 kg/hae0
- Outcome
- yieldse0
- Direction
- increasede0
- Value
- 42%e0
- Qualifier
- depending on the cultivare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“At both locations, yields were increased by as much as 42%, depending on the cultivar, by Si applied at 1,000 kg/ha.”
Claim · model-written summary
High silicon rates reduced broken grains.
- Taxon
- RiceOryza sativat0
- Treatment
- high rates of Sie0
- Outcome
- number of broken grains harvestede0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“In general, high rates of Si reduced the number of broken grains harvested.”
Claim · model-written summary
High silicon rate reduced grain discoloration by up to 70%.
- Taxon
- RiceOryza sativat0
- Treatment
- high rate of Sie0
- Outcome
- Grain discoloratione0
- Direction
- reducede0
- Value
- 70%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Rice”
e0“Grain discoloration, regardless of cultivar or location, was reduced by as much as 70% at the high rate of Si.”
Claim · model-written summary
The authors propose silicon supplementation of host resistance for rice disease management and improved yield quantity and quality.
- Taxon
- riceOryza sativae0
- Outcome
- application of Si to complement host resistance to blast and scalde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Si to complement host resistance to blast and scald appears to be an effective strategy for disease management in rice and provides the added benefit of improving the quantity and quality of rice yields.”
The same questions in other papers
silicon atom · yield · Oryza sativa (rice)Results differ
201 papers in the same direction as this paper · 16 in the opposite direction
- no effect
- positive
- positive
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See all 218 papers →silicon atom · disease · Oryza sativa (rice)Positive and negative results
68 papers in the same direction as this paper · 3 in the opposite direction · 2 reporting no difference from an alternative
- positive
- positive
- positive
70 papers more in this group
See all 74 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.