rootstock and cultivar selection is the most critical decision at the time of an apple orchard establishment. tree size, yield and fruit quality are affected by roostock and cultivar. non-sufficient study of rootstocks and cultivars effects on mentioned traits will lead to incorrect result or failure in orchard managing. in this study the effects of three vegetative rootstocks (mm106, mm111 and...

using apple clonal rootstocks is necessary for improving crop efficiency in apple orchards. after graftingof apple cultivars on malling rootstocks, the extra parts of the rootstock was used as stem cuttings. apical,middle and basal parts of these shoots were used as cuttings. two propagation conditions, greenhouse andnursery and three concentrations of indole-3- butyric acid (iba) on rooting, c...

Legumes form symbiotic associations with soil-dwelling bacteria collectively called rhizobia. This association results in the formation of nodules, unique plant-derived organs, within which the rhizobia are housed. Rhizobia-encoded nitrogenase facilitates the conversion of atmospheric nitrogen into ammonia, which is utilized by the plants for its growth and development. Fatty acids have been sh...

تهدف هذه الورقة البحثية إلى تعزيز وتطوير قواعد حوكمة الشركات المساهمة العامة في سلطنة عمان والمتمثلة قانون التجارية العماني رقم 18/2019، ولائحة 27 لسنة 2021م، وميثاق (خ/4/2015)، كما تضمنت البحثية، الكشف عن أوجه القصور وتفاديها والمتعلقة بقواعد الحوكمة على مجلس إدارة شركات من حيث تكوين المجلس وشروطه، وواجباته، ومسؤولياته، بالإضافة الى مفهوم الحوكمة. وتوصل الباحث أن مع وجود التطورات المستمرة غير ...