National Academy of Agricultural Sciences (NAAS)
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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 2018: 95.39 NAAS RATING 2020: 5.38 |
Rice (Oryza sativa L.) is one of the vital staple food for more than 50 % of the world’s population provided that major source of the food energy. Rice occupies a key role in Indian agriculture contributing to 20 - 25 % of agricultural income. It pays about 43 % of the whole food grain production and about 46 % of the overall cereal production in India (FAO, 2017).In the present study collected twenty (20) direct sown paddy rhizosphere soil samples from four districts of Andhra Pradesh and recorded their geographical position of collected soil samples. From that thirty two (32) Zinc Solubilizing Bacteria (ZnSB) isolated by using zinc phosphate [Zn3(PO4)2] as a insoluble source of zinc in the tris-mineral salts media. Zinc solubilizing isolates coded based on their soil sample collected geographical position, recorded the morphological, cultural characteristics of ZnSB. ZnSB Isolates screened based on their zinc solubilization efficiency both qualitatively and quantitatively. Among all 32 ZnSB isolates Zn KJJ-4 has the high ability to solubilize zinc both qualitatively and quantitatively among the all and lowest was showed by ZnAUU-1. Zn KJJ-4 showed the positive for the starch hydrolysis test, hydrogen sulphide test, catalase test, oxidase test, gelatine liquefaction test, methyl red test, Vogues Proskauer test, citrate utilization test and ammonia production test. ZnKJJ-4 showed the negative for indole production test.
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