Host Specific Plant Growth Promoting Activity of IAA Producing and Phosphate Solubilizing Fluorescent Pseudomonas

Abstract

Fluorescent Pseudomonas possesses many traits that make them well suited as biocontrol and growth promoting agents. Host specific plant growth promoting activity of fluorescent Pseudomonas isolates was observed. Isolates #P72, P141, P151, P233, P124, P6, P143, P176, P76, P99, P167 were able to induce the formation of increased root and shoot length. Isolates used in the present investigation had the ability (although in different proportions) to solubilize inorganic phosphate, produce Indole acetic acid (IAA) and PHB. Frequency of fluorescent Pseudomonas isolates which induced shoot length of crop plants more than fluorescent Pseudomonas isolates with the ability to induced root length. It was also observed that Fluorescent Pseudomonas isolates reduced root shoot length as compared un-treated control.