Most fruit-tree breeding projects are based on selection of seedlings in regard to their performance. The selected seedlings are vegetatively propagated, usually by grafting. It is highly important for the breeder to know whether the performance of the grafted tree will resemble the performance of the original seedling. In this study the performance of avocado and mango seedlings was compared w...

In grafted apple combinations, rootstocks can increase the stress tolerance of plants, influence scion growth, and harbor a rich microbial community. However, whether scions modify plant rootstock phenotypes rhizosphere bacterial communities has not been clearly investigated. Here, 14 different combinations two cultivars on 7 genotypes were used as research materials, we analyzed traits, commun...

Prunus rootstocks were evaluated for their reaction to Meloidogyne incognita and M. arenaria. Most rootstocks were peach-almond hybrids of Spanish origin. In one experiment three selections of Garfi x Nemared (G x N) and Hansen-5 were highly resistant to M. incognita, but four other rootstocks were susceptible showing high galling indices and population increases. In two experiments with M. are...

Many woody crop plants such as grapevine are traditionally grown with scion varieties grafted onto rootstocks. The selection of an appropriate rootstock provides a powerful tool to manage the growth and fruiting of the scion (Jones, 2012). In the grapevine propagation, the use of rootstocks is not a new matter. The evidence of the use of rootstocks can be found out even in works written by the ...

Summer fruitlet thinning is implemented as a routine orchard practice to produce apple fruits with good quality. However, its impacts on the dynamics of fruit quality metrics during growing season and in postharvest storage, remain unclear. In this study, summer hand fruitlets Ambrosia™ (Malus x domestica Borkh.) was conducted two dwarfing rootstocks, Malling 9 (M.9) Budagovsky (B.9), an organi...

The lack of dwarf stock with good cold resistance has affected the production apples in northern China. Annual dormant branches ‘Tianhong 2’ apple were grafted on 10 different interstocks (the rootstocks seedlings Malus hupehensis var. Pingyiensis) as test materials. Among these interstocks, Huang 6, 244, NO.1, 53, 24-5, ZC9-3, Jizhen 1 newly developed by us (Apple Research Group Hebei Agricult...

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...