comparison of presence of arbuscular mycorrhizal fungi on the root of( cichorium intybus l.) in various regions of tehran and chaloos road

chicory is a herbaceous plant which grows in many regions of iran such as tehran and chaloos road. the roots of chicory are succulent and its main root is 75 cm long. chicory is a herbaceous plant; its root, due to its inulin, is good for remedying diabetes. micorrhizs are effective on absorbing the elements of soil particularly phosphorus as well as increasing the growth of the plant, and they increase the fertility of soil, even through changing the elements of the soil. since there is not available any report about the presence of this micorrhizs in the roots of chicory in various regions of iran, in this study we have tried to investigate the presence of mycorrhizal fungi in the root of chicory in various regions of iran, so that regarding to its high herbaceous & nutritional values, the appropriate regions for cultivation of this plant can be identified. in this study, micorrhizs were analyzed using a microscope and through surface transverse section of the root. at last, the data obtained from the carried out operations were processed and calculated by analyze of variance (anova) and tukey methods. the results of this study, in addition to conforming the presence of fungi on the surface of the root of the chicory, demonstrated that the hyphae of fungi are very elongated, dichotomizing branches, without transverse wall and have a sinuosity structure. the frequencies of fungi are as follows: shahr aftab 1 and jajrood3 (%32), shahr aftab 2 (%24), bumehen and asara1 (%20), shahr aftab 3 (%18), asara2 (%17.8), jajrood1 (%16) and asara3 (%4). the results showed that the maximum frequencies are for shahr aftab 1 and jajrood3 and they are harvested from locations far from rivers and streams that are appropriate for agricultural cultivation of chicory.