Comparative efficacy of some safe seed treatments and fungicide for suppressing Fusarium Spp. on some crops [electronic resource]

Includes reference.

Seeds of plants and types of soil may be canying various types of pathogenic fungi, which playa significant role to reduce seed germination, increase the damping-off and wilt diseases caused by Fusarium spp. This pathogen identified as a major causal agent of seed or soil borne diseases. The ability of different seed treatments as save methods to suppress Fusarium spp.. reduce the percentage of damping-off and increase the percentage of dry weight in plants were evaluated. Acetic acid (3%), ammonia solution (0.25%) and benomyl (3g/L) chemical agents and Halex (a mixture of three growth promoting nitroger, fixing rhizobacleria), Bacillus polymyxa and Trichoderma harzianum as antagonistic microorganisms were applied as a seed treatment. Results showed that all the tested treatments suppressed the growth of Fusarium spp. isolated from broad bean, pea, chickpea, barley and wheat seeds in vitro. Trichoderma harzianum was found to be the most effeclive one in reducing damping-off and increasing dry weight of pea, barley and wheat plants, followed by Halex, Bacillus polymyxa and benomyl fungicide.

Summary in Arabic.

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