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VIABILITY OF VAM SPORES FROM WHEAT FIELDS IN SOIL BASE CULTURE UNDER STORAGE

Q.M.K. ANWAR* AND M. JALALUDDIN

Abstract: Axenic soil base VAM cultures of 6 different Glomus spp., viz., Glomus fasiculatum, G. macrocarpum, G. monosporum, G. mosseae, G. radiatum and G. warcupii extracted from the soil of wheat field and stored separately in pots at 5 and 10 (±l)°C or kept under natural conditions showed a gradual loss in viability in 2 yeats. Loss in viability of spores was significantly higher (p < 0.001) when the axenic culture of Glomus spp., were stored under natural condition with temperature ranging from 10-25°C during winter and 22-38°C during summer season. G. macrocarpum retained highest viability (p<0.001) after 2 years.

Department of Botany, University of Karachi, Karachi-75270, Pakistan.
Department of Biology, DHA Degree College(Men), Khayaban-e-Rahat, Phase VI, DHA, Karachi, Pakistan.