Virulence of Fusarium species to alfalfa seedlings | Zendy

Vesna Krnjaja | Zendy; J. Lević | Zendy; M. Ivanović | Zendy; Zorica Tomić | Zendy

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Virulence of Fusarium species to alfalfa seedlings

Author(s) -

Vesna Krnjaja,

J. Lević,

M. Ivanović,

Zorica Tomić

Publication year - 2005

Publication title -

zbornik matice srpske za prirodne nauke

Language(s) - English

Resource type - Journals

eISSN - 2406-0828

pISSN - 0352-4906

DOI - 10.2298/zmspn0508167k

Subject(s) - virulence , biology , wilting , fusarium , inoculation , root rot , botany , fusarium oxysporum , medicago sativa , pathogenicity , fusarium solani , horticulture , microbiology and biotechnology , biochemistry , gene

In in vitro conditions, virulence of 91 isolates of species Fusarium genus (F. oxysporum, F. solani, F. acuminatum, F. equiseti, F. arthrosporioides, F. prolifera- tum, F. avenaceum, F. semitectum, F. tricinctum, F. sporotrichioides and F. graminearum) towards alfalfa seedlings was investigated. Isolates of investigated species originated from diseased alfalfa plants collected at four locations in Serbia based on symptoms of wilting caused by Fusarium and root rotting. Pathogenicity and virulence of investigated isolates of Fusarium spp. were determined by visual evaluation of inoculated seedlings of cultivar K28 in laboratory conditions. All isolated of investigated species had pathogenic effect on alfalfa seedlings which expressed symptoms such as necrosis of root, moist rotting and "melting of seedlings". Colour of necrotic root tissue varied from light brown, brown lipstick red to explicit black, depending on the Fusarium species. Strong virulence was established in 48 isolates, medium virulence in 31 and weak virulence in 12 isolates

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