Publisher: Bachudo Science Co. Ltd

Antifungal Effect of Azadirachta Indica A. Juss Extracts On Colletotrichum Lindemuthianum

Anthony K. Onifade
KEYWORDS: Azadirachta indica, Colletotrichum lindemuthianum antifungal effect.

ABSTRACT:

Amending substrates with neem extracts was directly inhibitory to Colletotrichum lindemuthianum. Percentage inhibition was distributed in a decreasing order of potency among the seed, fruit, leaf, root and bark of A. indica. As the antifungal efficacy of the extract increased with decreased concentration, fungal conidia were ruptured and completely prevented from germinating in 90 and 100gl-1 aqueous neem seed extracts. Water extract was superior to the organic solvent extracts in reducing fungal spore germination, mycelial growth and dry weight. Among the organic solvent extracts, methanolic extract rated best, followed by ethanolic extract while chloroform extract was the least effective. The efficacy of need seed extracts was significantly reduced when stored at 40 - 90°C before use.


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