Fusarium stalk rot (FSR) caused by Fusarium verticillioides (=moniliforme) significantly affects the productivity of maize (Zea mays L.). The aim of the study was to determine the effect of Trichoderma harzianum, mycorrhizal fungi (Glomus spp.) Aspergillus niger and Bacillus subtilis for biocontrol poterntial of FSR using dual culture bioassays and greenhouse bioassays on maize. As a result, Trichoderma harzianum, mycorrhizal fungi (Glomus spp.) Aspergillus niger and Bacillus subtilis showed inhibitory or reducing acitivities against mycelial growth of Fusarium verticillioides in dual culture. Aspergillus niger and Trichoderma harzianum were the most effective suppressants of Fusarium verticillioides and Bacillus subtilis were the least effective. Application of B.subtilis significantly reduced FSR symptoms in greenhouse grown maize. At the end of the experiment, increase in spore density of biological control preparations increased in soil/ root samples. Treatments of mycorrhizal fungi (Glomus spp.), Trichoderma harzianum, Aspergillus niger and Bacillus subtilis led suppressed the development of Fusarium verticillioides in soil. In addition, mycorrhizal fungi (Glomus spp.), Trichoderma harzianum, Aspergillus niger and Bacillus subtilis also significantly improved the plant growth parameters. It is concluded that mycorrhizal fungi (Glomus spp.), Trichoderma harzianum, Aspergillus niger, and Bacillus subtilis have potential against Fusarium stalk rot and it should suppress occurrence of FSR in maize growing regions.

中文翻译：

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有用微生物对玉米植物病原真菌的抗真菌活性

镰刀菌茎腐病（FSR）导致的串珠镰刀菌（=串珠）显著影响玉米的生产性（玉蜀黍L.）。该研究的目的是要确定的效果哈茨木霉，菌根真菌（球囊霉属spp。）的黑曲霉和枯草芽孢杆菌用于使用双培养生物测定和生物测定温室玉米FSR的生物防治poterntial。结果，哈茨木霉，菌根真菌（Glomus spp。）黑曲霉和枯草芽孢杆菌在双重培养中显示出抑制或降低丝状镰刀菌菌丝生长的活性。黑曲霉和哈茨木霉是最有效的扶轮霉镰刀菌抑制剂，而枯草芽孢杆菌效果最低。枯草芽孢杆菌的应用显着减少了温室种植玉米的FSR症状。在实验结束时，土壤/根样品中生物防治制剂的孢子密度增加。菌根真菌（Glomus spp。），哈茨木霉，黑曲霉和枯草芽孢杆菌的治疗铅抑制了镰刀菌在土壤中的生长。此外，菌根真菌（Glomus spp。），哈茨木霉，黑曲霉和枯草芽孢杆菌也显着改善了植物的生长参数。结论是，菌根真菌（Glomus spp。），哈茨木霉（Trichoderma harzianum），黑曲霉（Aspergillus niger）和枯草芽孢杆菌（Bacillus subtilis）具有对抗镰刀菌腐烂的潜力，并应抑制玉米生长区FSR的发生。