Development of suppressiveness to Rhizoctonia solani Kühn in soils amended with fresh and composted manure

Voland, R.

doi:10.31274/rtd-180813-8996

Cited by 2 publications

(2 citation statements)

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“…Organic inputs through main crop residues with rotations, winter cover crops, brassica seed meals, compost, animal manure, biochar and peats have been studied extensively, aiming to reduce soilborne diseases (Baysal et al, 2008; Diab et al, 2003; Klein et al, 2011; McKellar and Nelson, 2003; Voland and Epstein, 1994; Weerakoon et al, 2012). Tillage affects the decomposition rates of organic matter inputs by saprobes and, therefore, can indirectly affect disease development (Bockus and Shroyer, 1998; Cantonwine et al, 2007; Ortiz‐Ribbing and Eastburn, 2004; Osmond et al, 2010; Paulitz et al, 2010; Rovira, 1986; Sumner et al, 1986).…”

Section: Discussionmentioning

confidence: 99%

Organic Transition Effects on Soilborne Diseases of Soybean and Populations of Pseudomonadaceae

et al. 2015

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During transition to organic production, various strategies can be implemented to enhance soil health, including the soil property of disease suppressiveness. We previously found increased levels of diseases caused by biotrophic pathogens associated with manure application, but manure also suppressed diseases caused by necrotrophic pathogens. In an extension of that study we evaluated soils from di erent cropping system and organic amendment treated plots using a bioassay of suppressiveness to two soilborne diseases, Rhizoctonia root rot and sudden death syndrome (SDS) of soybean [Glycine max (L.) Merr.]. Also, the soil population levels of Pseudomonadaceae were assessed for their suitability as an indicator of disease suppressiveness. Levels of soil suppression of both Rhizoctonia root rot and SDS were found to be associated with speci c cropping systems, but the associations were not consistent from year to year. ere were no associations between organic amendment treatments and disease suppression in the bioassay studies. However, there was an overall increase in soil suppressiveness to Rhizoctonia solani during the 3 yr of transition, regardless of cropping system or organic amendment treatments. In contrast, there was an overall decrease in suppressiveness to Fusarium virguliforme during the transition. ere was no signi cant e ect of cropping system or organic amendment treatments on the levels of Pseudomonadaceae, indicating that this was not a good predictor of general suppression in this study. While speci c treatments were not found to consistently impact soil suppressiveness, the overall increase in suppressiveness to R. solani during the 3-yr transition did show the value of the transition process.

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Section: Discussionmentioning

confidence: 99%

Organic Transition Effects on Soilborne Diseases of Soybean and Populations of Pseudomonadaceae

et al. 2015

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“…Green Bean Medium (GBM) for the production of R. solani sclerotial inoculum. Method was modified by Voland (1989) from van Bruggen and Ameson (1985). Frozen, standard-cut green bean pods were emptied from the package into metallic basket, defrosted in an autoclave at 100 kFa (15 psi) for 60 seconds, and immediately returned to ambient pressure.…”

Section: Komentioning

confidence: 99%

Interactions of Rhizoctonia solani Kühn and Trichoderma spp populations in soil

Prieto

Esther²

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Development of suppressiveness to Rhizoctonia solani Kühn in soils amended with fresh and composted manure

Cited by 2 publications

References 43 publications

Organic Transition Effects on Soilborne Diseases of Soybean and Populations of Pseudomonadaceae

Organic Transition Effects on Soilborne Diseases of Soybean and Populations of Pseudomonadaceae

Interactions of Rhizoctonia solani Kühn and Trichoderma spp populations in soil

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