Show simple item record

dc.contributor.authorPotgieter, Clarissa
dc.contributor.authorDe Beer, Misha
dc.contributor.authorClaassens, Sarina
dc.identifier.citationPotgieter, C. et al. 2013. The effect of canola (Brassica napus) as a biofumigant on soil microbial communities and plant vitality: a pot study. South African journal of plant and soil, 30(4):191-201. []en_US
dc.identifier.issn2167-034X (Online)
dc.description.abstractCanola (Brassica napus) may be incorporated into soil as a biofumigant for control of pathogens such as Sclerotinia sclerotiorum. Yet, the effect of biofumigants on natural microbial communities required to maintain soil functions is still unclear. A pot experiment with sunflowers as the crop plant was conducted to assess the biofumigation effect of canola on the soil microbial community. The study consisted of 32 pots containing four treatments of eight replicates each. Each pot contained one sunflower plant. The treatments included (1) soil only, (2) soil incorporated with canola, (3) soil incorporated with canola and inoculated with S. sclerotiorum, and (4) soil inoculated with S. sclerotiorum. Microbial community function and structure were assessed through assays of dehydrogenase activity, substrate utilisation profiles and signature biomarker analysis. Chlorophyll a fluorescence measurements were performed as a measure of sunflower vitality. Canola incorporation brought about transient changes in the soil microbial community, none of which were detrimental. Plant vitality showed no negative effects due to the biofumigant or the inoculated pathogen. Canola can be suitable as a biofumigant, without having harmful effects on the indigenous soil microbial communityen_US
dc.publisherTaylor & Francis and NISCen_US
dc.subjectchlorophyll fluorescenceen_US
dc.subjectmicrobial communityen_US
dc.subjectSclerotinia sclerotiorumen_US
dc.titleThe effect of canola (Brassica napus) as a biofumigant on soil microbial communities and plant vitality: a pot studyen_US
dc.contributor.researchID13091042 - De Beer, Misha
dc.contributor.researchID11935952 - Claassens, Sarina

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record