The red bud borer Resseliella oculiperda (Rübs.) is a pest insect of apple trees when rootstocks are grafted with scion buds by 'shield budding'. The female midges are attracted to the wounds of the grafted buds where they lay their eggs. The larvae feed on the cambium and destroy the buds completely or partially, leading to bad union of the buds with the rootstocks. Budding strips are used ver...

The Michurinsk State Agrarian University (Michurinsk SAU) is one of the leading centers for breeding apple clonal rootstocks. A diverse collection rootstocks, founded in 1930s by V.I. Budagovsky, maintained at SAU. In present study, 87 rootstocks from this were analyzed using 18 SSR markers to assess their genetic diversity and relatedness. detected polymorphism level was rather high compared p...

An indicator of the condition plants, depending on growing conditions, is state their leaf apparatus, which described by content chlorophyll and nutrients in leaf. The an apple-tree provides synthesis organic substances, productivity fruit trees depends features its vital activity. As a method diagnosing mineral nutrition crops, chemical analysis leaves important, indicators reflect levels plan...