Isolation of indigenous arbuscular mycorrhizal fungi and selection of host plant for inoculum production

Samuel, Lihan and Rakiya, Abdullahi and Rebicca, Edward (2014) Isolation of indigenous arbuscular mycorrhizal fungi and selection of host plant for inoculum production. International Journal of Biosciences | IJB |, 5 (12). pp. 116-122. ISSN 2222-5234

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Abstract

The objective of this study was to select a suitable host plant for mass production of indigenous arbuscular mycorrhizal (AM) fungi. Lemongrass and onion were compared for mass multiplication of Glomus species viz; Gl. mossea, Gl. geosporum and Gl. etunicatum. Spore count ranges from 17.67 (Gl. etunicatum) to 26.33 (Gl. mossea) g-1 soil under onion and lemongrass respectively. There was no significant difference (0.05) between Gl. Mossea and Gl. Geosporum in onion. Similarly, no significant difference was observed between Gl. Geosporum and Gl.etunicatum in lemongrass. Gl.mossea recorded the highest spore number followed by Gl.geosporum in both plant species. Root colonization % ranges from 67.33% (Gl.mossea) in onion to 80% (Gl.geosporum) in lemongrass. Colonization % of Gl.mossea and Gl.geosporum were statistically similar under individual plant species. Despite the lowest spore counts recorded by Gl.etunicatum, % root colonization was significantly (0.05) higher compared to Gl.mossea and Gl.geosporum in onion. Lemongrass recorded the highest average mean (77.33%) of root colonization % and spore counts (23.44) compared to onion (68.44%, 19.67). The study showed that AMF-plant interaction was host preference. Lemongrass favored the mass multiplication of Gl. mossea, Gl.geosporum and Gl.etunicatum thus, was the most suitable host plant compared to onion for inoculum production

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