orchard intensification is motivated by the desire to produce fruit early in the life of the orchard to rapidly recover establishment costs. intensification is possible using dwarfing rootstocks that control tree size, induce early cropping and produce large quantities of fruit compared to the amount of wood produced. therefore, this study attempts to compare some yield and fruit properties of ...

INTRODUCTION An experiment was conducted beginning in 2003 at a certified organic apple orchard in Iowa to evaluate insect pest and disease incidence in four scab– resistant apple cultivars (Delate et al., 2005). This on-farm experiment was resumed in 2007 after new grant funds were secured to compare pest loads with previous years’ results. The objective of the on-farm demonstration was to com...

We compared the eating quality of a new apple cultivar, ‘GoldRush,’ with ‘Golden Delicious’ (one of its parents), ‘Fuji,’ and ‘Granny Smith’ (the latter two often used for fresh-cut apple slices). We also compared a commercial with an in-house processing treatment, NatureSeal for apples and Produce Quality and Safety Laboratory (PQSL), respectively. Intact apples that had been stored for about ...

fire blight disease caused by erwinia amylovora is a destructive disease of pome fruits including apple worldwide. use of resistant cultivars is the most efficient method of disease control. in the present research, we investigated genetic resistance of 89 local and imported commercial apple cultivars in natural contaminated conditions to the bacterial disease using beltsville scoring system (u...

The project ‘Mycorrhizal symbioses of transgenic apple trees with increased resistance against fungal pathogens’ (Subproject of the framework ‘Biosafety of transgenic woody plants’, supported by the German Federal Ministry for Education and Research) investigates whether the transformation of apple trees with fungal chitinase encoding genes besides increasing resistance against fungal pathogens...

The domesticated apple (Malus x domestica Borkh.) is a major fruit crop of temperate regions of the world. 'Fuji' apple (Ralls Genet x Delicious), a famous apple cultivar in Korea, has been very popular since its promotion in Japan in 1958. 'Fuji' and its bud mutant cultivars possess variable levels of genetic diversity. Nonetheless, the phenotypes of each group, which are classified into the b...

Apple orchards require the presence of a different genotype to pollinate fruit producing cultivar. This is due process gametophytic self-incompatibility present in most species and cultivars genus Malus. The cultivar pollinizer must be genetically compatible ensure set symmetrical adequate formation. aim this work was evaluate five potential pollinizers for new apple SCS426 Venice by genotyping...

Codling moth (CM), Cydia pomonella (L.) (Lepidoptera: Tortricidae) is a major fruit feeding pest of apples. Understanding susceptibility differences of various apple cultivars to CM oviposition is an important step in developing resistant varieties as well as monitoring and management strategies for this pest in apple orchards planted with mixed-cultivars. In this context, oviposition preferenc...

Many biotic and abiotic parameters affect the metabolites involved in the organoleptic and health value of fruits. It is therefore important to understand how the growers' decisions for cultivar and orchard management can affect the fruit composition. Practices, cultivars and/or year all might participate to determine fruit composition. To hierarchize these factors, fruit weight, dry matter, so...

The combined availability of whole genome sequences and genome editing tools is set to revolutionize the field of fruit biotechnology by enabling the introduction of targeted genetic changes with unprecedented control and accuracy, both to explore emergent phenotypes and to introduce new functionalities. Although plasmid-mediated delivery of genome editing components to plant cells is very effi...