2012, Issue-4, Volume 4

TOXICITY EFFECT OF CULTURE FILTRATES OF SOME FUNGI ON SEED GERMINATION AND SEEDLING GROWTH OF SOLANUM MELONGENA VAR.  ESCULENTA NEES

D.K. Jain, Kumkum Gupta, Reena Bansal, Gunjan Joshi and P.N. Singh

Department of Botany, Meerut College, Meerut (U.P.)

Abstract : Culture filtrate of all the fungi tested, e.g.  Alternaria alternata, Aspergillus flavus, A.niger, Chaetomium  brasilense, Curvularia lunata, Cladosporium herbarum, Fusarium oxysporum ,  Macrophomina phaseoli, Myrothecium  roridum  and Trichoderma  viride  adversely affected  the  seed  germination  and   seedling   growth . The maximum  reduction  in  seed  germination percentage  of  seeds  was  observed  in  the culture  filtrates  of  Trichoderma  viride  followed  by  that  of  Aspergillus  flavus,  Myrothecium  roridum,  Macrophomina  phaseoli  and  Fusarium  oxysporum.  Boiled filtrates were more effective than the unboiled ones.  In general, roots were more susceptible to toxins.

Keywords : Germination, Fungi, Solanum melongena

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