Population dynamics of rhizosphere microflora of mycorrhizal and non-mycorrhizal barley (Hordeum vulgare) in organic amended soils

Tilak, K. V. B. R. and Saxena, A. K. and Dwivedi, A. K. (2004) Population dynamics of rhizosphere microflora of mycorrhizal and non-mycorrhizal barley (Hordeum vulgare) in organic amended soils. Acta Botanica Hungarica, 46 (3-4). pp. 417-421. ISSN 0236-6495

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Abstract

A pot experiment was conducted to study the response of barley (Hordeum vulgare) to inoculation with Glomus fasciculatum in unsterilised organic matter amended soils on the colonization of barley roots by (V)-Arbuscular mycorrhizal (AM) fungi and other rhizosphere microflora. The populations of bacteria, fungi and actinomycetes were higher in amended than in control soils. Paddy straw compost (PSC) stimulated all three groups of organisms (bacteria, fungi and actinomycetes) more than city compost (CC). The fungal and actinomycetes populations decreased with increasing plant age. The effect was more pronounced in the rhizosphere of paddy straw-amended soils. The mycorrhizal spore count and the colonization of barley roots by (V)-AM were more pronounced in soils amended with PSC than in those amended with CC.

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