نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه گیاه پزشکی، دانشکدگان کشاورزی و منابع طبیعی دانشگاه تهران، کرج، ایران
2 گروه گیاهپزشکی، دانشکده کشاورزی و منابع طبیعی، دانشگاه تهران، کرج، ایران
3 بخش تحقیقات گیاه پزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان خراسان رضوی، سازمان تحقیقات، آموزش و ترویج کشاورزی، مشهد، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The biological control of Fusarium wilt in potato, which is caused by the soil-borne fungal pathogen Fusarium oxysporum f. sp. tuberosi, is essential for sustainable agriculture. Therefore, the present study was conducted to investigate the interaction between two beneficial microorganisms, the bacterium Bacillus velezensis UTB96 and the fungus Trichoderma harzianum T22, in controlling Fusarium wilt in potato plants in vitro and in vivo conditions. The experiment was designed using a completely randomized design to ensure accurate and reliable results. The results showed that in vitro conditions, the combined treatment of B. velezensis + T. harzianum inhibited the pathogen's growth by 77.73%, while individual treatments of B. velezensis and T. harzianum inhibited fungal growth by 40.12% and 70.12%, respectively. In greenhouse conditions, the combined use of these two microorganisms outperformed the individual treatments. The combination of B. velezensis and T. harzianum controlled Fusarium wilt by 76.75% and significantly enhanced plant height, fresh and dry weights of different parts of the potato plant. In comparison, B. velezensis and T. harzianum alone controlled the disease by 62.3% and 57.5%, respectively. Thus, although the individual isolates of B. velezensis and T. harzianum can partially control the disease, this study demonstrated that their combined application is more effective to control Fusarium wilt of potato.
کلیدواژهها [English]
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