tailieunhanh - Interaction between Glomus geosporum, Azotobacter chroococcum, and Bacillus coagulans and their influence on growth and nutrition of Melia azedarach L.

A green house nursery study was conducted to assess the interaction between arbuscular mycorrhizal fungus, a nitrogen fixing bacterium, Glomus geosporum, Azotobacter chroococcum, and a mycorrhiza helper bacterium (MHB), Bacillus coagulans, in soil and their consequent effect on growth and nutrition of Melia azedarach L. seedlings. | Turk J Biol 33 (2009) 109-114 © TÜBİTAK doi: Interaction between Glomus geosporum, Azotobacter chroococcum, and Bacillus coagulans and their Influence on Growth and Nutrition of Melia azedarach L. Sevanan RAJESHKUMAR1, Mathan CHANDRAN NISHA2, Padanilly CHIDAMBARAM PRABU1, Lakew WONDIMU1, Thangavel SELVARAJ3 1 Department of Applied Biology, Faculty of Natural and Computer Sciences, Ambo University College, Post Box. No. 19, Ambo, Western Shoa - ETHIOPIA 2 Department of Botany, Kongunadu Arts and Science College, Coimbatore, Tamilnadu – INDIA 3 Department of Plant Sciences, Faculty of Agricultural Sciences, Ambo University College, Post Box. No. 19, Ambo, Western Shoa - ETHIOPIA Received: Abstract: A green house nursery study was conducted to assess the interaction between arbuscular mycorrhizal fungus, a nitrogen fixing bacterium, Glomus geosporum, Azotobacter chroococcum, and a mycorrhiza helper bacterium (MHB), Bacillus coagulans, in soil and their consequent effect on growth and nutrition of Melia azedarach L. seedlings. Triple inoculation of G. geosporum, A. chroococcum, and B. coagulans resulted in maximum plant biomass, N, P, Zn, and Cu uptake, and biovolume and quality index of M. azedarach seedlings. It also increased the mycorrhizal root colonization and spore numbers in the root zone soil of the inoculated plants over uninoculated control plants. The enzyme activity, namely acid phosphatase and dehydrogenase, in the root zone soil was found high in the 3-combination treatments and low in the uninoculated control. Triple inoculation with G. geosporum + A. chroococcum + B. coagulans proved to be the best microbial consortium for inoculating M. azedarach at nursery level in order to get healthy and vigorously growing seedlings. Key Words: Melia azedarach, Glomus geosporum, Azotobacter chroococcum, Bacillus coagulans, growth, nutrition Glomus geosporum, Azotobacter chroococcum ve Bacillus coagulans Arasındaki Etkileşim ve .

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