نوع مقاله : مقاله علمی -پژوهشی کاربردی
عنوان مقاله English
نویسندگان English
Root-knot nematodes are among the major factors limiting cucumber growth, and the use of biological control methods can provide a suitable alternative to chemical nematicides. The present study was conducted to investigate the efficacy of Pochonia fungi (isolates IRAN 1129 C, IRAN 1119 C, IRAN 1212 C, and IRAN 45s7 C) and Lecanicillium (IRAN 3022 C) in controlling the root-knot nematode of cucumber under laboratory and greenhouse conditions. The experiments were conducted in a completely randomized design with four replications, using sterile distilled water as the control. Seeds of the susceptible cucumber cultivar ‘Emperor’ were sown in a sterilized growing medium, and fungal and nematode treatments were applied after plant establishment. After 60 days, plant growth parameters and nematode population and reproduction indices were evaluated. The results showed that the Pochonia and Lecanicillium isolates improved plant growth parameters and reduced nematode population density and reproduction. Among the treatments, Pochonia isolates IRAN 1129 C, IRAN 1119 C, and IRAN 1212 C, as well as Lecanicillium IRAN 3022 C, exhibited greater efficacy in controlling the nematode, whereas IRAN 45s7 C showed a weaker effect. These findings demonstrate the potential of these fungi as biological control agents and their potential as alternatives to chemical nematicides.
کلیدواژهها English
