Abstract
The potential of populations of Bemisia tabaci (Genn.) to become resistant to insecticides has stimulated research into alternative tactics of integrated pest management such as the induction of host-plant resistance. Recent data have shown that silicon can increase the degree of resistance of host plants to insect pests. Therefore the aim of our work was to study the effects of silicon application on the vegetative development of soybean plants and on the induction of resistance to the silverleaf whitefly, B. tabaci biotype B. We performed choice and no-choice tests of oviposition preference on two soybean cultivars, IAC-19 (moderately resistant to B. tabaci biotype B) and MONSOY-8001 (susceptible), with and without application of silicon. Silicon did not affect silverleaf whitefly oviposition preferences, but caused significant mortality in nymphs. Thus, silicon increased the degree of resistance to silverleaf whitefly. Silicon decreased the production of phenolic compounds, but did not affect lignin production. However, when applied to cultivar IAC-19, it increased the production of non-protein organic nitrogen. Silicon had no effect on the vegetative development of soybean plants, but it increased the degree of resistance to the silverleaf whitefly. We conclude that silicon applications combined with cultivar IAC-19 can significantly decrease silverleaf whitefly populations, having a positive impact both on the soybean plant and on the environment.
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Claims 8
Claim · model-written summary
Silicon did not alter silverleaf whitefly oviposition preference.
- Taxon
- soybean
Glycine maxt0 - Treatment
- Silicone0
- Interactor
- silverleaf whitefly
Bemisia argentifoliie0pest - Outcome
- silverleaf whitefly oviposition preferencese0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon did not affect silverleaf whitefly oviposition preferences, but caused significant mortality in nymphs.”
t0“soybean”
Claim · model-written summary
Silicon caused significant whitefly nymph mortality.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Silicone0
- Interactor
- silverleaf whiteflyBemisia argentifoliie0pest
- Outcome
- mortality in nymphse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon did not affect silverleaf whitefly oviposition preferences, but caused significant mortality in nymphs.”
t0“soybean”
Claim · model-written summary
Silicon increased soybean resistance to silverleaf whitefly.
- Taxon
- soybeanGlycine maxt0
- Treatment
- silicone0
- Interactor
- silverleaf whiteflyBemisia argentifoliie0pest
- Outcome
- degree of resistancee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus, silicon increased the degree of resistance to silverleaf whitefly.”
t0“soybean”
Claim · model-written summary
Silicon decreased production of phenolic compounds.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Silicone0
- Outcome
- production of phenolic compoundse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon decreased the production of phenolic compounds, but did not affect lignin production.”
t0“soybean”
Claim · model-written summary
Silicon did not affect lignin production.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Silicone0
- Outcome
- lignin productione0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon decreased the production of phenolic compounds, but did not affect lignin production.”
t0“soybean”
Claim · model-written summary
In IAC-19, silicon increased non-protein organic nitrogen production.
- Taxon
- soybeanGlycine maxt0
- Material
- IAC-19e0
- Treatment
- applied to cultivar IAC-19e0
- Outcome
- production of non-protein organic nitrogene0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, when applied to cultivar IAC-19, it increased the production of non-protein organic nitrogen.”
t0“soybean”
Claim · model-written summary
Silicon had no effect on vegetative development of soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Silicone0
- Outcome
- vegetative developmente0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Silicon had no effect on the vegetative development of soybean plants, but it increased the degree of resistance to the silverleaf whitefly.”
Claim · model-written summary
The authors conclude silicon combined with IAC-19 can significantly reduce whitefly populations.
- Taxon
- soybeanGlycine maxe0
- Material
- IAC-19e0
- Treatment
- silicon applications combined with cultivar IAC-19e0
- Interactor
- silverleaf whiteflyBemisia argentifoliie0pest
- Outcome
- decrease silverleaf whitefly populationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We conclude that silicon applications combined with cultivar IAC-19 can significantly decrease silverleaf whitefly populations, having a positive impact both on the soybean plant and on the environment.”
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See all 28 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.