17 J. Afzal Zia-ul-hassan1 N. Depar M. Arshad S.S. Rao I. Rajpar A.N. Shah Journal of Animal and Plant Sciences JAPS 20142014/12/01 24 6 1834-1839 1018-7081 NA <p>Rhizobacterial phosphate solubilization supports plant nutrition under phosphorus (P) deficiency stress. In this filed study we evaluated wheat response to ACC-deaminase-containing rhizobacterial strains, with or without phosphate-solubilizing activity, under varying levels of soil applied phosphatic fertilizer. The experiment was conducted on a P-deficient soilby using randomized complete block split plot design involving two factors. Factor Ainvolved three P doses (in main plots), i.e. 0(Control), 42.5 and 85 kg P2O5g ha-1. Factor B included three rhizobacterial treatments (in sub plots), i.e. No rhizobacterial seed inoculation (control) and wheat seed inoculation with ACC-deaminase&nbsp;<em>Pseudomonas fluorescens</em>&nbsp;with or without P-solubilizing activity. P nutrition of wheat plants at half and full recommended dose increased various plant growth and yield parameters of wheat in a range of 7.4 to128% and 9.6 to 144%, respectively, against control. ACC-deaminase&nbsp;<em>Pseudomonas fluorescens&nbsp;</em>without or with P-solubilizing activity increased various traits of wheat plants in a range of 1.4 to38% and 2.9 to86%, respectively, against control. The study concluded that&nbsp;<em>Pseudomonas fluorescens</em> with dual activities of ACC-demainase and phosphate solubilization play significant role in enhancing wheat growth and yield under both low- and high-P sustainable agriculture.</p> Wheat, Triticumaestivum L., Phosphorus, Pseudomonas fluorescens, ACC-deaminase, phosphate-solubilization Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2014-JAPS-261