Vol. 6, Issue 7 (2017)

Author(s):
Pukhraj Meena and Alok Kumar Rai

Abstract:
The efficiency of plant growth-promoting rhizosphere (PGPR) in various conditions, observing that PGPR are effective under determined conditions only. Awareness of the structure of rhizosphere microbial communities and their diversity, as related to other essential processes within the system such as complexity, natural selection, inter populational relations (symbiosis, parasitism, mutualism or competence), succession or the effect of disturbances, is the key to a better understanding of the system and for the correct utilization of PGPR in biotechnology. PBW274 wheat varieties posses higher amount of Chl.a +b (13.67 mg g-1), when treated with isolated PGPR1. Ascorbic acid was significantly increased in all the three selected varieties. PGPR3 isolates showed better response in comparison to PGPR1 and PGPR2 isolates. PGPR3 isolates treatment showed high ascorbic acid content (178.52 mg/g). PGPR1 treated plants showed better result in comparison to other isolated PGPR treated plants. TPC (Total phenolic compound) concentrations were increased significantly by the incorporation of PGPR isolate and showed wide variation (161.6 mg GAEg-1 to 635.6 mg GAE g-1). In this biochemical analysis, results were found to be significant (p<0.05).