In vitro rooting response and indole-3-acetic acid (IAA) levels were examined in two genetically related dwarfing apple (Malus pumila Mill) rootstocks. M.26 and M.9 were cultured in vitro using Linsmaier-Skoog medium supplemented with benzyladenine (BA), indole-3-butyric acid (IBA), and 1,3,5-trihydroxybenzoic acid (PG). Rooting response was tested in Lepoivre medium supplemented with IBA and P...

In 2018, 23.2 Mt of pears were produced in the world across 1.3 million hectares (ha) cultivated land. This review analyzes different training systems and management styles that have been adopted worldwide, emphasizing European pear’s economic environmental sustainability for Mediterranean area cultivation. Despite a reduced number cultivars utilized around world, pear presents plethora innovat...

Semi-dwarfing rootstocks have enabled the adoption of high-density orchard systems for sweet cherry. Understanding effects training on light capture and fruit quality lateral bearing cultivars early in tree/orchard establishment is lacking. The aim this study was to investigate interception over two seasons 4–5 year-old ‘Kordia’ grafted ‘Krymsk 5? rootstock trained 2D planar upright fruiting of...

The cultivar and rootstock effect on iron chlorosis were studied. The results revealed significant differences among peach cultivars and rootstocks in mineral content. Seasonal changes were also found in the macroand micronutrient content of leaves of peach cultivars and rootstocks. The rootstock St. Julien 655/2 was found to be efficient in K, P, Zn, Fe, Cu absorption and better than seedling ...

In the last decade, a sporadic tree health syndrome affecting high-density apple plantings in North America has become known as Rapid Apple Decline (RAD) or Sudden (SAD). The affected trees were typically grafted on small dwarfing rootstocks, often displayed necrosis at graft union, and suffered from sudden mortality that occurred over 2–3 weeks amid growing season gradual decline. 2019 2020, w...

Carrizo citrange (Citrus sinensisxPoncirus trifoliata) is a citrus hybrid widely used as a rootstock, whose genetic manipulation to improve different growth characteristics is of high agronomic interest. In this work, transgenic Carrizo citrange plants have been produced overexpressing sense and antisense CcGA20ox1 (a key enzyme of GA biosynthesis) under control of the 35S promoter to modify pl...

Nutrient uptake by trees is determined by root interception, soil availability, and tree demand. Fruit trees have low rooting density, especially in the case of dwarfing rootstocks. Mobility in the soil is a key factor in determining nutrient availability, and good management of nutrients requires that supply is matched to demand, in terms of amount, timing and retention in the root-zone, and t...