بررسی اثر قارچ میکوریز آربوسکولار Glomus mosseae برخسارت زایی نماتد ریشه گرهی Meloidogyne javanica روی دو نوع پایه هلو

The peach, Prunus persica scientific name belongs to the family Rosaceae except for the core fruit trees, which are regarded as permanent products in the supply of food and human health. These trees are subject to various diseases and infections each year, including nematodes, which can cause significant damage to them. Knot root nematodes Meloidogyne spp. and are intrinsic to the parasite, are one of the most important inhibitors of the growth of crop production, which global distribution, host domains make them one of the most important plant pathogens. The harmful effects of chemical pesticides on human health, environmental pollution and economic reasons, and the resistance of nematodes to toxins and some of the cultivars, and the inadequacy of other methods, the use of biological control can be a good alternative to control root knot nematodes. Meanwhile, Arbuscular Mycorrhizal fungi with good properties (in plant growth and in control of pathogens) can be a good option for controlling nematodes. For this purpose, the effect of fungus Glomus mosseae on damaging nematode Meloidogyne javanica, plant growth and physiological parameters of plant (chlorophyll, anthocyanin, total phenol) on 2 types of seedlings Helenderi and GF677 cuttings were studied in a completely randomized design with four treatments and five replications in greenhouse conditions. . Fungus and nematode inoculum were used as a 10% w/w of pot soil and 2000 second larvae, respectively. The results showed that, mycorrhiza without nematodes had the highest growth index compared to control. The mixing of mycorrhiza and nematode treatments in addition to the reduction of galling and reproductive rate, with improved growth resulted in compensating for nematode damage. The results of phenol extraction showed a significant difference between treatments. The mix of mycorrhiza and nematode was the highest in comparison to the control. Comparison of treatments with each other indicates the beneficial effects of mycorrhiza in improving growth, maintaining basal health and reducing and compensating for damage. Also, with increasing total phenol, the bases were resistant to nematodes. The seed base has less damage than the cutting base. One of the reasons for this is the physical difference between the two roots (the rapid growth and deployment of the root and the dispersion and increase the level of seed base).