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ID:105867
Title:Determination of phosphate solubilization and plant growth promotion of bacterial isolates
URL:http://innspubnet.blogspot.com/2015/04/determination-of-phosphate.html
Category:Sciences
Description:A study investigating bacterial isolates having inorganic phosphate solubilization along with plant growth promoting abilities was attempted. The isolates were from different paddy rhizosphere soil samples of Salem region. A total number of 34 bacillary isolates were successfully isolated from 315 morphologically distinct colonies and evaluated for their ‘P’ solubilization ability. The colonies showing clear halo zones (= 2mm) around them, on the Pikovskaya agar medium containing Tri-calcium Phosphate (TCP) were selected as phosphate solubilizers. Among these isolates 11 strains (BMERF-PSB3, BMERF-PSB4, BMERF-PSB7, BMERF-PSB8, BMERF-PSB12, BMERF-PSB14, BMERF-PSB16, BMERF-PSB19, BMERF-PSB20, BMERF-PSB23 and BMERF-PSB25) had shown superior (= 5-29 mm) phosphate solubilization ability. Among these 11 superior (32%) PSB isolates, 4 (12%) (BMERF-PSB3, BMERF-PSB7, BMERF-PSB16 and BMERF-PSB19) were found to be having plant growth promoting characteristics by producing Auxin.
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