English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The increased occurrence of  Fusarium -mycotoxins in Norwegian cereals over the last decade, is thought to be caused by increased inoculum resulting from more cereal residues at the soil surface as a result of reduced tillage practices. In addition, weather conditions have increasingly promoted inoculum development and infection by  Fusarium  species. The objective of this work was to elucidate the influence of different tillage regimes (autumn plowing; autumn harrowing; spring plowing; spring harrowing) on the inoculum potential (IP) and dispersal of  Fusarium  spp. in spring oats. Tillage trials were conducted at two different locations in southeast Norway from 2010 to 2012. Oat residues from the previous year’s crop were collected within a week after sowing for evaluation. IP was calculated as the percentage of residues infested with  Fusarium  spp. multiplied by the proportion of the soil surface covered with residues.  Fusarium avenaceum  and  F. graminearum  were the most common  Fusarium  species recovered from oat residues. The IP of  Fusarium  spp. was significantly lower in plowed plots compared to those that were harrowed. Plowing in either the autumn or spring resulted in a low IP. Harrowing in autumn was more effective in reducing IP than the spring harrowing, and IP levels for the spring harrowed treatments were generally higher than all other tillage treatments examined. Surprisingly low levels of  F. langsethiae  were detected in the residues, although this species is a common pathogen of oat in Norway. The percentage of the residues infested with  F. avenaceum, F. graminearum, F. culmorum , and  F. langsethiae  generally related to the quantity of DNA of the respective  Fusarium  species determined using quantitative PCR (qPCR).  Fusarium  dispersal, quantified by qPCR analysis of spore trap samples collected at and after heading, generally corresponded to the IP.  Fusarium  dispersal was also observed to increase after rainy periods. Our findings are in line with the general understanding that plowing is a means to reduce the IP of  Fusarium  spp. in cereal fields. The main inoculum source for  F. langsethiae  remains unclear. Our results will be useful in the development of forecasting tools to calculate the risk of  Fusarium  in cereals.

Inoculum Potential of Fusarium spp. Relates to Tillage and Straw Management in Norwegian Fields of Spring Oats