Abstract
ABSTRACT Through the present study a botanically derived product Amalab-a was developed by combining Aegle marmelos leaf extract with a formulating agent (coded A+) and tested against three fungal pathogens of rice viz. Helminthosporium oryzae , Curvularia lunata and Fusarium moniliforme. Product registered complete inhibition of conidial germination at 0.01% in H.oryzae, C. lunata and F.moniliforme and mycelial growth inhibition at 1% in H.oryzae, F.moniliforme and at 0.1% in C. lunata whereas the extract alone could not at the same concentration. The shelf-life test displayed greater fungitoxic effect against all the three tested pathogens and retained its fungitoxicity upto 0.01% concentration till 12 months storage period. This formulated product has therefore improved the efficacy and shelf-life of this botanical product compared to the unformulated botanical extracttested under in-vitro, hence possesses greater potential for its integration against rice brown spot and grain discolouration control strategy but needs to be tested under in-vivo.
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