Antagonistic activity and molecular characterization of biological control agent Trichoderma harzianum from Saudi Arabia

Egyptian Journal of Biological Pest Control

Table 3 Antagonistic potential of Trichoderma isolates against Rhizoctonia solani, Pythium ultimum, and Alternaria solani

Trichoderma isolates	Antagonistic potential inhibition %
Trichoderma isolates	R. solani	P. ultimum	A. solani
T.1	66.7^g	36.5^f	54.3^c
T.2	52.0ⁱ	36.5^f	43.8^f
T.3	72.4^f	48.3^c	51.5^d
T.4	72.4^f	48.3^c	54.6^c
T.5	72.4^f	45.2^d	57.4^b
T.6	81.4^a	61.2^a	62.8^a
T.7	79.6^b	42.9^e	45.8^e
T.8	74.5^d	45.2^d	54.6^c
T.9	72.8^e	48.4^c	54.6^c
T.10	76.7^c	58.3^b	42.0^g
T.11	60.2^h	48.3^c	45.8^e
T.12	72.4^f	42.9^e	51.5^d

*Mean values within a column followed by the same letter are not significantly different at P ≤ 0.05