Abstract
Globally, drought stress causes the negative impact on agriculture production. However, microbial inoculation is the suitable cost-effective technology to attenuate the drought stress. The aim of this experiment was conducted to evaluate the impact of microbial inoculation on morpho-physiological characters of sorghum under moisture stress condition. A pot experiment with sorghum was conducted to access the role of previously identified bacterial endophyte strains. For comparison, two non-inoculated control treatments (T1: absolute control and T2: drought control) were maintained to compare the drought and inoculation effect. Drought was imposed at flowering stage and soil moisture was measure at frequent days. When the soil moisture attains close to zero, plants were rehydrated. During drought and rehydration period, plant morphological and physiological characters were evaluated. Drought stress drastically reduces the plant characters in control (T2-uninoculated) plant. Whereas, in the presence of bacterial inoculation considerably reduces the drought effect also Bacillus sp. inoculation treatment promoted better recovery during their rehydration process than absolute control. Overall, Bacillus sp. inoculation was the most promising bacterium for possible field trials.
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