Vol. 12, Issue 9 (2023)

Author(s):
Poojarani SM, PU Krishnaraj, CR Patil, Suma Biradar, Aravind Kumar BN and Manjunath Hebbara

Abstract:
In this study, we evaluated 12 selected rhizobacterial isolates for various in vitro plant growth-promoting traits. The functional diversity of the isolates with respect to beneficial traits demonstrated that all the isolates scored positive for nitrogen fixation, P, K and Zn solubilization; production of substances that promote plant growth, such as IAA, siderophore and ammonia. Two isolates demonstrated the ability to produce HCN. Further, quick analysis of PGP traits of the isolates on wheat was carried through paper towel test. With respect to germination percentage, all the isolates were significantly superior over control. The seedling fresh weight and dry weight were also found maximum in the seedlings treated with S. tanashiensis strain AUDT573 (1.98 g and 0.33 g, respectively).