Influence of Micorrhiza and Variety on Some Characteristics of Sunflower

Sunflower is the world’s fourth largest oil-seed crop. Sunflower, a member of compositae family is the most important edible oilseed crop in the world. The mycorrhizal symbiosis provides the plant with an increased ability for nutrient capture and cycling in soils with low nutrient availability. Many plants are capable of forming association with AM fungi to help boost native soil nutrients. The experiment was conducted at the zabol which is situated between 41° North latitude and 61° East longitude. The field experiment was laid out factorial with randomized complete block design with three replications. Treatments included two factors: sunflower variety esfahan (v1), ghasem (V2) and inoculation with mycorrhyza in eight levels included control (M1), inoculation with glumus mossea (M2), inoculation with glumus etanicatum (M3), inoculation with G.HOI (M4), inoculation with M3+ M2 (M5), inoculation with M4+ M3 ، (M6) , inoculation with M4+ M2 (M7), , inoculation with M4 +M3+M2 (M8). Analysis of variance showed that the effect of variety on all characteristics was significant except head diameter. Analysis of variance showed that the effect of micorrhyza on all characteristics was significant except head weight.