Journal
ANNALS OF APPLIED BIOLOGY
Volume 167, Issue 3, Pages 364-372Publisher
WILEY
DOI: 10.1111/aab.12233
Keywords
biofumigation; Brassica carinata; Brassica nigra; defatted seed meals; Prunus persica; sinigrin
Categories
Funding
- Consorzio Agrario of Ravenna, Italy
- MiPAAF [D.M. 17533/7303/10]
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The antifungal properties of isothiocyanates released from the hydrolysis of the glucosinolate sinigrin were assessed on an Armillaria mellea strain in Petri dishes. The fumigation with sinigrin at 100 mu M showed a fungicidal effect, while lower rates determined a temporary fungistatic effect. The application of increasing rates of solid and liquid biofumigant formulations on A. mellea inoculated potted peach plants showed an increase of soil nitrate concentration, basal respiration, microbial biomass, leaf nitrogen and chlorophyll concentration. These effects indicated a stimulating effect of Brassicaceae derivatives on soil biological activity and plant growth. The application of a rate of meal higher than 6.42 g kg(-1) soil caused a stunted growth and the death of some plants showing a clear phytotoxic effect of the treatments. The inhibition of A. mellea growth observed in in vitro trials was not evidenced in in vivo experiments due to the lack of infection symptoms in experimentally inoculated potted trees.
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