The Biobrio 2(3 & 4), 2015

Biological Control of Fusarium Wilt oF Gladiolus Caused by Fusarium oxysporum f. sp. gladioli by the Selected Trichoderma Species under Glasshouse Conditions

Subhash Chandra, Shailendra Vikram Singh and Sutanu Lal Bondya

ABSTRACT:

Trichoderma species have been reported as most potential biocontrol agents against several plant pathogens. The Fusarium oxysporum f. sp. gladioli (Massey) Snyder & Hansen is an important Fusarium wilt pathogen and responsible for Fusarium wilt of gladiolus. The mass cultures of selected Trichoderma species and the test pathogen, F. oxysporum f. sp. gladioli (Massey) Snyder & Hansen were prepared on barley grain. The seed of susceptible variety of gladiolus were sown separately in the treated and control pots. Effect of the Trichoderma species amended in natural soil on per cent disease control of wilting of gladiolus showed that the per cent mortality of gladiolus plants was 90.4% in control but it was highly reduced in treatment. Amongst the antagonists, T. harzianum BHU showed maximum disease control (82.0 %) at 3% concentration but it was insignificant with T. atroviride BHU

Keywords:    

Trichoderma species, Fusarium oxysporum f. sp. gladioli, biocontrol, gladiolus

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