In temporal and spatial advantage of A.alternata growth, it continues to grow until it is in contact with the antagonist. From this moment, there is an attempt to grow towards the opposite side, which is visible in its deformed characteristic (Figure 12). At the same time, T. harzianum develops without obstacles (Figures 13, 14).
In investigations about Trichoderma’s influence with volatile metabolites, it is noticeable that the pathogen grows more slowly than the antagonist does, as in the previous case. However, the growth slows and becomes stagnant about the fifth day, compared to check, which continues to grow and get up bigger diameter (Table 2). T. harzianum doesn’t show a difference in dual cultures and check - normal and inverted position, too (Table 2).