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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.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(5): 472-484
DOI: https://doi.org/10.20546/ijcmas.2018.705.059


Nutrient Uptake and Biological Activity in Tomato by Zinc Solubilizing Bacterial (ZSB) Isolates
D.N. Vidyashree1*, R. Muthuraju1 and P. Panneerselvam2
1Department of Agricultural Microbiology, University of Agricultural Sciences, GKVK, Bengaluru-560 065, Karnataka, India
2ICAR-National Rice Research Institute, Cuttack-753006, Odisha, India
*Corresponding author
Abstract:

Zinc deficiency not only affects crop yields, but also nutritional quality and human health. Microbial transformation of unavailable forms of soil zinc to plant available zinc is an important approach contributing to plant zinc nutrition. Therefore, Nutrient uptake and biological activity in Tomato crop by zinc solubilizing bacterial isolates was tested under glass house condition. The study consisted of six treatments, each with five replications, including five different zinc solubilizing bacteria and uninoculated control, out of five bacteria B. aryabhattai was used as reference strain. The results revealed that tomato seedlings treated with B. aryabhattai and Bacillus sp. (PAN-TM1) substantially decreased rhizosphere pH and increased the macro and micro nutrient concentration in rhizosphere, plant and tomato fruit especially zinc concentration in the fruit (31.1 and 29.3 ppm respectively). Further biological activity viz., dehydrogenase, urease, acid and alkaline phosphatase, soil respiration and soil microbial biomass carbon was also found to be increased significantly with the B. aryabhattai and Bacillus sp.(PAN-TM1) treated seedlings as compared to uninoculated treatment. This assumes significance as the increased zinc concentration found in this study has large implications in terms of overcoming zinc malnutrition. ZSB isolates i.e. B. aryabhattai and Bacillus sp. (PAN-TM1) substantially influenced mobilization of zinc and its concentration in edible portion, which can be utilized as bio-inoculants for biofertilization and biofortification in the sustainable crop production practices.


Keywords: Deficiency, Zinc solubilizing bacteria, Bacillus aryabhattai, biofortification of Zn, Soil enzymes
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How to cite this article:

Vidyashree, D.N., R. Muthuraju and Panneerselvam, P. 2018. Nutrient Uptake and Biological Activity in Tomato by Zinc Solubilizing Bacterial (ZSB) Isolates.Int.J.Curr.Microbiol.App.Sci. 7(5): 472-484. doi: https://doi.org/10.20546/ijcmas.2018.705.059