Fi g.1. Methods of inoculation of PBM in host plan
The seed inoculation technique is the most applied method (Simon et al. 2011). Advantages and disadvantages of each inoculation method depend on the tool accessibility, inoculum and seed type (e.g., size, shape, and fragility), the presence of inhibitory components in the seed (e.g., fungicides, micronutrients, and PBM), and costs (Table 2).
Table 2. Methods of PBM inoculation