Claim · model-written summary
Potassium silicate soil drenches gave significantly higher avocado root density than untreated control trees.
- Taxon
- Persea americana
Persea americanae2 - Treatment
- Soil drenching with 20 l per tree of a 20 ml l-1 soluble potassium silicate solution (20.7% silicon dioxide)e1
- Interactor
- P. cinnamomi
Phytophthora cinnamomie2pathogen - Outcome
- root densitye1
- Direction
- highere1
- Comparator
- untreated control treese1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Soil drenching with 20 l per tree of a 20 ml l-1 soluble potassium silicate solution (20.7% silicon dioxide) resulted in significantly higher root density when compared to untreated control trees, and trees injected with potassium phosphonate (Avoguard®) during most but not all evaluation dates”
e2“In the current study effects of successive soil drench applications of soluble potassium silicate on canopy health and root density of 13-year-old Persea americana Mill. trees infected with P. cinnamomi were investigated”
Title
Theo F Bekker; Nico Labuschagne; Terry Aveling; et al. South African Journal of Plant and Soil 2014. doi:10.1080/02571862.2014.912687
Other claims from this paper (6)
- Intervention effect Potassium silicate soil drenches gave significantly higher avocado root density than phosphonate injections during most but not all evaluation dates.
- Intervention effect Three successive potassium silicate drenches gave the most significant increase in avocado root density.
- Intervention effect Potassium silicate drenches gave a similar effect on avocado canopy health.
- Intervention effect Avocado trees drenched three times with potassium silicate per season had higher total soluble phenolic concentrations than untreated trees.
- Intervention effect Avocado trees drenched three times with potassium silicate per season had higher total soluble phenolic concentrations than trees injected twice with phosphonate.
- Recommendation Multiple or continuous potassium silicate applications to avocado trees are suggested to be required to effectively suppress Phytophthora cinnamomi over the growing season.