کنگره بین المللی زیست فناوری گیاهان دارویی و قارچ های کوهی

صفحه اصلی / چهارمین کنگره بین المللی و پنجمین همایش ملی زیست فناوری گیاهان دارویی و قارچ های کوهی

The complication of sweeping in Elaeagnus angustifolia (EA) orchards and the necessity of selecting disease-resistant genotypes (case study: oleaster gardens in University of Zanjan-Iran).

نویسندگان :

Ali Ammarellou¹

1- دانشگاه زنجان

کلمات کلیدی :

sweeping trait, .،plant breeding

چکیده :

Although our perception related to medicinal plants are mostly one-year and sometimes multi-year medicinal plants, but medicinal shrubs and medicinal trees have also played an important role in human history and memory therapy. The Elaeagnus angustifolia, commonly called Russian olive or oleaster, is native to Europe and Asia. It is a small, usually thorny, deciduous tree or large shrub that is typically grown for its silvery foliage, small fragrant yellow flowers, olive-like fruit and ease of cultivation. The Russian olive (Oleaster) tree/shrubs is one of the important medicinal plant, especially in semi-arid and dry regions of the world. This fruit and plant is known as Senjed in Iran. Olester (Senjed-persian) is one of the seven ingredients of the Haftsin Iranian table. In addition to the medicinal properties of soothing and calming muscle pain, as well as its effectiveness in strengthening bones, its high resistance to biological stresses, including drought, is one of the important factors in the cultivation of elderberry orchards in the world. The University of Zanjan with more than 440 hectares, as one of the green universities in the world, based on the Green Metric scale, has recently dedicated a part of its garden green spaces to planting elderberry, which is a successful experience for producing fruit from urban green spaces. Our field surveys in different parts of oleaster gardens show that 10-15% of oleaster gardens are infected with sweeping disease, which has challenged the beauty, growth and fruiting as well as the continuation of tree life of the gardens. The development of swollen glands and scabs with a diameter of 3 to 5 cm at the end or middle of the branches and then the growth of more than 5 to 10 thin light branches on the swollen base part were observed as the general characteristics of this disease. The change in shape (deformation) of the stem and branch as well as the drying of the branches are the next results of this disease. The preliminary data and field observations indicate the relationship between this feature of sweeping between the Elaeagnus angustifolia and the Salix babylonica trees. Considering the intra-tissue contamination of the disease, it seems that the selection of disease-resistant cultivars along with adequate nutrition of orchards is one of the most important ways to deal with this developing disease in oleaster orchards.