Polymyxa betae was first described as the parasite of sugarbeet root by Keskin in 1964. However, it is its role in the survival and transmission of Beet necrotic yellow vein virus which makes P. betae economically important. Weed hosts may play a more important role than sugar beet and spinach in...

Purpose: To discuss the clinical characteristics, treatment and outcomes of germline and non-germline retinoblastoma tumors. Methods: A retrospective study was performed on retinoblastoma cases from 1979 to 2007. General characteristics of the patients, treatment modalities, histopathological...

Trials of exotic varieties of Poplar species and their wood production potential at Guilan province (Caspian region) of Iran have been started after 1960s. Some ecological requirements and exceptions might positively od negatively affect the poplar's adaptation process. The trial was conducted...

In order to determine the growth and yield of three pine species, this study was carried out in the forest and rangeland research station of Zaghmrz, located in East of Caspian sea shore. Treatments were Pinus pinea, P. longifolia and P. brutia. Their one year old seedlings were arranged based on...

Forest plantations can help to reduce logging pressure on natural forest ecosystems. In this research survival and growth of two exotic coniferous species (Picea abies and Abies nordmanniana) that planted in 1962 were evaluated in Hyrcanian forest in North of Iran. The results showed survival rate...

In this research growth and survival rate of two 36 years old plantations with exotic coniferous species (Pinus taeda and Cryptomeria japonica) were studied in the South coast of Caspian Sea in the North of Iran. Systematic sample plots (20×20 m) were used to collection of data in each plantation...

The life cycle of Pileolaria terebinthi, the causal agent of Beneh (Pistacia mutica) rust, was investigated under greenhouse and natural conditions in Fars province, Iran. In both conditions, the basidiospores caused infection on Pistacia species and formed all developmental stages including...