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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(8): 2771-2784
DOI: https://doi.org/10.20546/ijcmas.2019.808.319


Prospective Zinc Solubilizing Microorganisms for Enhanced Growth and Nutrition in Maize (Zea mays L.)
Sukanya Ghosh*, Navneet Pareek, K. P. Rawerkar, R. Chandra, S. P. Pachauri and Shikhar Kaushik
Department of Soil Science, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, Uttarakhand-263145, India
*Corresponding author
Abstract:

Zinc (Zn) is one of the most essential micronutrients required for normal plant growth and development. Even though considerable quantity of inorganic Zn is applied in soil but significant quantity of it gets converted into unavailable forms. Zn solubilising microorganisms are the potential substitute for Zn supplement to plant from soil. Among the four isolates that were screened for Zn solubilization, fungal ones performed better than bacterial ones and Aspergillus sp. in particular, outperformed every other isolate in the test. It produced a clear halo zone of 22.7 mm on solid medium amended with ZnO. It also produced the biggest halo zone on ZnCO3 amended media which was followed by Penicillium sp. and Bacillus megaterium. Aspergillus sp. also gave significant release of Zn in broth assay amended with ZnO and ZnCO3 (88 and 62 ppm), respectively. The pH of the broth was acidic in all the cases ranging from 4.6 to 6.4 in ZnO and from 5.1 to 6.7 in ZnCO3 amended media. A pot culture experiment with maize for 60 days was conducted which revealed that seed inoculation with Aspergillus sp. superiorly enhanced total dry weight of plant (63.21 g/plant) and N (2.42%), P (0.432%) and Zn (25.79 ppm) contents.


Keywords: Zinc solubilizing bacteria, Aspergillus sp., Bacillus sp., zinc oxide, solubilization
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How to cite this article:

Sukanya Ghosh, Navneet Pareek, K. P. Rawerkar, R. Chandra, S. P. Pachauri and Shikhar Kaushik. 2019. Prospective Zinc Solubilizing Microorganisms for Enhanced Growth and Nutrition in Maize (Zea mays L.).Int.J.Curr.Microbiol.App.Sci. 8(8): 2771-2784. doi: https://doi.org/10.20546/ijcmas.2019.808.319