To evaluate the effect of the fungus micorrizico Rhizophagus intraradices on the initial growth of Sorghum bicolor (Moench,1794) hybrid HIMECA 500 was subjected to water stress simulated by tests under controlled conditions in pots of 5 kg capacity with sandy loam soil. The design was randomized with 5 repetitions. Non-destructive variables were evaluated (plant height, leaf area length) with factorial arrangement of treatments 2x3, and application of the fungus factor micorrizico (with and without implementation), and the factor of irrigation (100, 70 and 40% of total consumption), we generated 6 treatments: T1 mycorrhized plants 100%, T2 mycorrhized plants 70%, T3 mycorrhized plants 40%, T4 plants without 100% Mycorrhization, T5 plants without 70% mycorrhization and T6 plants without 40% mycorrhization , performing analysis of repeated measures in time with 7 Assessments (7, 14, 21, 28, 35, 42 and 49 days). Destructive variables evaluated were leaf area and dry mass, with a 22x3 factorial including the factor evaluation (28 and 49 days). The results showed significant differences in mycorrhized plants and higher values for each variable studied. The cultivation of sorghum showed a significant response to the inoculation with R. intraradices, considering as a biotechnology element that increases productivity in drought conditions.

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