In vitro Antifungal Activity of Somee Higher Plant Extracts against Alternaria brassicae (Berk.) Sacc. and A. brassicicola (Schw.) Wiltsh

Abstract

The aqueous extracts of 10 plant species viz. Alangium solviifolium (root), Cestrum nocturnum(leaf), Ranunculus sceleratus (leaf), Ageratum conyzoides (stem), Annona squamosa (leaf),Zingiber officinale (rhizome), Nicotiana plumbaginifolia (fruit), Adhatoda vasica (fruit), Saracaindica (bark), Cannabis sativa (leaf) were assayed in vitro for antifungal activity againstAternarias pp.-the causal organisms of leaf blight of crucifers. The assessment of fungitoxicity was carried out by poisoned food technique on the basis of percent of inhibition incolony diameter of the test fungi Alternaria brassicae and A. brassicicola. The extracts of allplant species were found to be effective against test fungi. Among them, the aqueousextracts of root of Alangium solviifolium showed total inhibition of mycelial growth againstboth species of Alternaria. The present study was found out a source of biofungicide, so thatenvironmental hazards can be minimized by using these chemicals.