Chemo-Therapeutic and Nematoxic Effect of Composts on the Survival of Meloidogyne hapla Juveniles
2013
Olabiyi, T.I.
Aqueous extract from five different composts (Terra Ecosystem, wyvern waste, garden waste, farm yard manure and green waste) were assessed for their effects on juvenile survival of Meloidogyne hapla in vitro. It was found that graded extracts (5, 10, 15 and 20% w/v) of the composts effectively killed M. hapla juveniles. At the 8ᵗʰ day exposure time,M. hapla juveniles in Terra Ecosystem, wyvern waste, garden waste and green waste were dead, whereas few M. hapla were alive in the farm yard manure aqueous extract till day 10. The in vitro assessment shows that Terra Ecosystem, wyvern waste, garden waste and green waste were significantly toxic to M. hapla.Phyto-chemical analysis of the compost revealed that Terra Ecosystem contained sterols and flavonoids; wyvern waste contained sterols, glycosides and flavonoids; garden waste contained only flavonoids; farm yard manure contained saponins, sterols, glycosides and flavonoids; and green waste contained saponins, sterols and flavonoids.
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