Management of Root Knot Disease in Rice Caused by Meloidogyne graminicola through Nematophagous Fungi

Sobita Simon and Anamika Anamika

Journal of Agricultural Science, 2011, vol. 3, issue 1, 122

Abstract: A glass house experiment was conducted for the effectiveness of nematophagous fungi against Meloidogynegraminicola in which Arthrobotrys oligospora and Dactylaria eudermata were used for the management of rootknot disease of rice. Root knot nematodes, Meloidogyne graminicola had proved itself as an important limitingfactor for successful cultivation and productivity of rice. By amending the soil with application of mass cultureof two nematophagous fungi (Arthrobotrys oligospora and Dactylaria eudermata) reduced the number of rootgalls by 86.9% and 81.1%, of females by 94.2% and 91.7%. The mass culture of these fungi increased the plantgrowth- shoot length by 41.9% and 38.8%, root length by 44.6% and 41.8%, fresh weight of shoot by 61.1% and58.7%, and fresh weight of root by 24.3% and 22.5%, respectively over nematode infested soil. The betterperformance of A. oligospora may be attributed to better colonization and establishment of A. oligospora than D.eudermata and may be better tolerance of the fungus to soil fungistasis.

Date: 2011
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