Combating sheath blight pathogen (Rhizoctonia solani) of rice with Aegle marmelos extract based Amalab, a formulated botanical product
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Authors
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SWAGATIKA ROUT, H.N. THATOI and S.N. TEWARI*
Keywords:
Aegle marmelos, fungitoxicity, formulating agent, Rhizoctonia solaniAbstract
Amalab-a, Amalab-e and Amalab-eo, the three organic product developed by combining a formulating agent (coded A+) with aqueous, ethanolic and essential oil leaf extract of Aegle marmelos proved effective against Rhizoctonia solani , the incitant of sheath blight disease of rice. The essential oil leaf extract product of Aegle marmelos, was found to reduce mycelial growth at 0.1% concentration whereas, the extract alone could significantly reduce the mycelial growth only partially at the same concentration. Combination of the product with essential oil extract was found to produce superior fungitoxic effect than either aqueous or ethanolic extract product combination. This formulated product has therefore improved the efficacy of fungitoxicity compared to the unformulated botanical extract tested in-vitro and hence, possess greater potential for its integration in rice sheath blight control strategy but needs to be tested in-vivo.
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