Effect of Culture Filtrates of some Seed Borne Fungi of <I>Dalbergia sissoo</I> Roxb. on Seed Germination and Seedling Growth

Abstract

Effect of metabolites of nine fungi isolated from seeds of Dalbergia sissoo viz., Asptrgillus niger, A. flavus, A phoenicis, A. tamarii, A. sydowi, Fusarium moniliforme, F. oxysporum, F. solani and a black sterile fungus was studied on seed gemination and seedling growth (root and shoot lengths). The reduction in seed germination and seedling growth may be ascribed to toxic substances secreted by the test fungi. The rating of the fungi on the basis of inhibitory effects placed A. niger as highly potent followed by other fungi. The metabolites of A. sydowi, however, produced a synergistic effect.