Open AccessPhosphate Solubilizing Bacteria in Certain Agricultural Crop Soils of Delhi
Author(s) -
Ratul Baishya,
Rhituporna Saikia
Publication year - 2018
Publication title -
international journal of plant and environment
Language(s) - English
Resource type - Journals
eISSN - 2455-202X
pISSN - 2454-1117
DOI - 10.18811/ijpen.v4i01.11613
Subject(s) - phosphate solubilizing bacteria , crop , phosphate , solubilization , pseudomonas , bacteria , soil water , agriculture , biofertilizer , chemistry , biology , horticulture , agronomy , rhizobacteria , biochemistry , rhizosphere , ecology , genetics
Phosphate solubilizing bacteria (PSB) helps in the solubilization of insoluble phosphates and thus lead to increase in crop yields. A study was conducted to isolate and characterize biochemically PSB from different agricultural crop soils of Delhi such as Garlic, Radish, Chilli, Onion and Cabbage. PSB were isolated in Pikovskaya solid medium and formation of solubilization (halo) zone was measured. 16 PSB were isolated and identified. The selected PSB differed in phosphate solubilizing efficiency, production of organic acids and phosphatases. Citrobacter sp. and Pseudomonas sp. were dominant in all the crop plants. Among all the isolates, Pseudomonas sp. proved to be an efficient phosphate solubilizer.