An analysis of genetic structure and differentiation in cultivated walnut (Juglans regia) using 15 microsatellite loci revealed a considerable amount of genetic variation with a mild genetic structure indicating five genetic groups corresponding to the centers of diversity within the home range of walnut in Eurasia. Despite the narrow genetic differentiation among groups accounting for only 10 ...

Sweet cherries, Prunus avium L., from the United States must be fumigated to control codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), before exporting them to Japan. However, the status of sweet cherry as a true host for codling moth has been debated because of the limited survival of the pest. Previously, laboratory methods have been developed to rear the codling moth on sweet ch...

Simulation can be used to visualize the mechanical classification of walnuts. It collect microscopic information about walnuts in roller and guide its optimization design. In this process, simulation parameters are essential factors that ensure effectiveness simulation. study, crucial thin-skinned walnut particles were determined by combining discrete element method (DEM) physical tests. Firstl...

Olfaction and gustation play critical roles in the life history of insects, mediating vital behaviors such as food, mate and host seeking. Chemosensory receptor proteins, including odorant receptors (ORs), gustatory receptors (GRs) and ionotropic receptors (IRs) function to interface the insect with its chemical environment. Codling moth, Cydia pomonella, is a worldwide pest of apple, pear and ...

California’s fruit and nut tree crops represent one-third of the state’s cash farm receipts and 70% of U.S. fruit and nut production. Advances in crop biotechnology and genetic engineering could help protect these valuable crops from pests and diseases and improve productivity. However, due to the difficulty of genetically engineering woody tree crops, as well as intellectual property concerns,...

Walnut research in France is carried out by scientists employed by the Centre Technique Interprofessionel des Fruits et Legumes (CTIFL) and the Institute National de la Recherche Agronomique (INRA). (The Association Foret-Cellulose (AFOCEL) which has been active in research on walnut propagation is terminating their walnut project this year.) CTIFL focuses on applied research and technology tra...

Serr variety to which all rootstocks were (!.raftedhas grown and produced on all rootstock selections although some have grown faster and produce more than others. Northern California Black Walnut (Juglans hindsii) and ~. major grow to moderate size and have good production potential. The paradox seedling, paradox cutting and Royal seedling grow to large size and have a good production potentia...

On farm walnut drying is often a major bottle neck during the start of walnut harvest. The recommended maximum drying air temperature for English walnuts is 110 of. This limit is based on tests by university personnel during the introduction of heated air drying (Batchelor, 1924) which demonstrated that long term exposure to temperatures higher that 110°F caused walnuts to turn rancid. This pro...

BACKGROUND Compared with other common plant foods, walnuts (Juglans regia) are consistently ranked among the highest in antioxidant capacity. In vitro, walnut polyphenols inhibit plasma and LDL oxidation, while in animal models they lower biomarkers of oxidative stress and raise antioxidant capacity. A limited number of human feeding trials indicate that walnuts improve some measures of antioxi...