Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Reaction of some sugarbeet genotypes to pathogens which cause root rot.

Abstract

Under the conditions of the Republic of Moldova, sugarbeet root rot is determined by a pathogen complex, with the highest incidence involving Fusarium oxysporum var. orthoceras. Pythium debaryanum, Aphanomyces cochlioides, T. basicola, Pleospora betae, Gliocladium spp. and Aspergillus spp. were present in the complex but at a lower frequency. The spectrum of pathogens which cause root rot depends on both the ontogenetic stage of the crop and sugarbeet genotype. Tests with Fusarium spp. isolates manifested a strong negative action on sugarbeet growth, confirming that these fungi represent the main pathogens of sugarbeet in the Republic of Moldova. Fusarium action differently influenced the genotypes tested.