Figure 6 .

Growth promotion of Alamo by PsJN inoculation in sub-optimal conditions. The seedlings were inoculated with PsJN and grown in vitro for one month, then transferred to 4-gallon pots with 5 plants/pot with unfertilized field soil and grown in the glasshouse under ambient conditions for 2.5 months in the late Fall of 2010. Dry weight was determined after samples were dried in oven at 65°C for one day. Sample number was 25, and ** means significant difference at 0.01 level between PsJN and control using student T-test.