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Effects of Trichoderma spp. treatments on the growth and development of tomato roots. The root dry weight (a) and development (b) of 2‐month‐old Solanum lycopersicum (Corbarino, TA209, M82 and SM36) and S. habrochaites (LA1777) lines, developed from untreated (Cont), T. atroviride P1‐treated (P1) or T. harzianum T22‐treated (T22) seeds, are presented. Values indicated by the same letter are not statistically significantly different for P≤ 0.01 according to the Duncan test.
