A field experiment was conducted to evaluate the response of AMF species with different phosphorus (P) levels for root colonization, microbial population under maize in an alluvial soil. Of all the species of mycorrhizae taken under consideration, G. mosseae along with 75% RDF of P was found to perform better in terms of root colonization, number of spores and grain yield. Application of G. mosseae @ 10 kg ha-1 + 50% P + 100% NK produced significantly higher root colonization by 177.32, 55.20, 37.75 and 101.95 per cent over the treatments 100% RDF, G. mosseae @ 10 kg ha-1 + 75% P + 100% NK, G. coronatum @ 10 kg ha-1 + 75% P + 100% NK, G. decipien @ 10 kg ha-1 + 75% P + 100% NK and control, respectively. The similar trend was observed for number of spore count. The maximum number of bacteria (40Ã—10-5 cfu g-1 soil) was found with the inoculation of G. mosseae @ 10 kg ha-1 + 75% P + 100% NK at flowering stage. The maximum grain yield (7656.61 kg ha-1) was recorded with the application of G. mosseae @ 10 kg ha-1 + 75% P + 100% NK, which was 111.92 per cent significantly higher the control treatment. G. mosseae along with 75% RDF of phosphorus inoculation proved to be effective in modifying the soil microbe population and community structure and also in enhancing the grain yield.
AMF, Grain yield, Maize, Microbial population, Root colonization, Spore
Badri, D.V. and Vivanco, J.M. (2009). Regulation and function of root exudates. Plant Cell Environ., 32(6): 666-681
Bagyaraj, D.J., Sharma, M.P. and Maity, D. (2015). Phos-phorus nutrition of crops through arbuscular mycorrhi-zal fungi. Curr. Sci., 108 (7): 1288-1293
Feng, K., Lu, H.M., Sheng, H.J., Wang, X.L. and Mao, J. (2004). Effect of organic ligands on biological availa-bility of inorganic phosphorus in soils. Pedosphere, 14: 85â€“92
Gerdemann, J.W. and Nicolson, T.H. (1963). Spores of mycor-rhizal Endogone species extracted from soil by wet-sieving and decanting. Trans. Br. Mycol. Soc., 46: 235-244
Hata, S., Kobae, Y. and Banba, M. (2010). Interactions be-tween plants and arbuscular mycorrhizal fungi. Int. Rev. Cell Mol. Biol., 281: 1â€“48
John, M. (2011). Microbial interactions and biocontrol in the rhizosphere. J. Experimental. Bot., 552 (1): 487-511
Kurle, J.E. and Pfleger, F.L. (1994). The effect of cultural practices and pesticides on VAM fungi. In: F.L. Pfleger and R.G. Linderman (Eds.) Mycorrhizae and Plant Health. APS Press, Minnesota, pp. 101-131
Parniske, M. (2008). Arbuscular mycorrhiza: the mother of plant root endosymbioses, Nature Rev. Microb., 6: 763-775
Philips, J.M. and Hayman, D.S. (1970). Improved procedures for clearing roots and staining parasitic and vesicular-arbuscular mycorrhizal fungi for rapid assessment of infection. Trans Br Mycol Soc., 55: 158â€“161
Rakshit, R., Patra, A.K., Purakayastha, T.J., Singh, R.D., Pathak, H., Dhar, S. and Das, A. (2016). Super-optimal fertilization affects root growth and soil microbial abun-dance and biomass during wheat growth. J. Food Agric. Environ., 14 (1): 112-118
Rao, A.V., Tak, R. (2001). Influence of mycorrhizal fungi on the growth of different tree species and their nutrient uptake in gypsum mine spoil in India. Appl. Soil Ecol., 17: 279-284
Sabia, E., Claps, S., Morone, G., Bruno, A., Sepe, L. and Aleandri, R. (2015). Field inoculation of arbuscular mycorrhiza on maize (Zea mays L.) under low inputs: preliminary study on quantitative and qualitative as-pects. Italian J. Agron., 10: 30-33
Secilia, J. and Bagyaraj, D.J. (1987). Bacteria and actinomy-cetes associated with pot cultures of vesicular arbuscular mycorrhizas. Canadian J. Microbial., 33(8):1069-1073
Singh, M., Beura, K., Pradhan, A.K., Rakshit, R. and Lal M. 2015. Ability of arbuscular mycorrhiza to promote growth of maize plant and enzymatic activity of an alluvial soil. J. App. and Nat. Sci., 7 (2):1029-1035
Smith, S.E. and Read, D.J. (2008). Mycorrhizal symbiosis. Academic Press, London, UK.
Snedecor, G.W. and Cochron, W.G. 1971. Statistical meth-ods. 6th edition . Oxford and IBH Pub. Co., new Delhi. 593p.
Soto, M.J., FernaÃ¡ndez-Aparicio, M., Castellanos-Morales, V., GarcÃa-Garrido, J.M., Ocampo, J.A., Delgado, M.J. and Vierheilig, H. (2010). First indications for the involvement of trigolactones on nodule formation in alfalfa (Medicago sativa). Soil Biol. Biochem., 42: 383-385
Subba, R.N.S. (1986). Rhizobium and root nodulation. In: soil microorganisms and plant growth. Oxford IBH New Delhi.
Thom, C. and Raper, K.B. (1945). A manual of the Aspergil-li. Williams and Wilkins Co., Baltimore, U.S.A.
Vazquez, M., Cesar S., Azcon R., Barea, J.M. (2000). Inter-actions between arbuscular mycorrhizal fungi and other microbial inoculants (Azospirillum, Pseudomonas, Trichoderma) and their effects on microbial population and enzyme activities in the rhizosphere of maize plants. Appl. Soil Ecol., 15:261â€“272
Zhu, H.H., Long, L.K. and Yang, S.Z. (2005). Influence of AM fungus on Ralstonia Solanacearum Population and bacterial community structure in rhizosphere. Mycosys-tema, 24(11):137-142
Zhu, Y.G., Smith, F.A. and Smith, S.E. (2003). Phosphorus efficiencies and responses of barley (Hordeum vulgare L.) to arbuscular mycorrhizal fungi grown in highly calcareous soil. Mycorrhiza, 13:93â€“100
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