Xylella fastidiosa causes disease in many commercial crops, including almond leaf scorch (ALS) disease in susceptible almond (Prunus dulcis). In this study, genetic diversity and population structure of X. fastidiosa associated with ALS disease were evaluated. Isolates obtained from two almond orchards in Fresno and Kern County in the San Joaquin Valley of California were analyzed for two succe...

This paper is devoted to the study of reproducing kernel Hilbert spaces. We focus on multipliers of reproducing kernel Banach and Hilbert spaces. In particular, we try to extend this concept and prove some related theorems. Moreover, we focus on reproducing kernels in vector-valued reproducing kernel Hilbert spaces. In particular, we extend reproducing kernels to relative reproducing kernels an...

Self-incompatibility is one of the most important difficulties in almond production which reduce fruit set dramatically and makes orchard management difficult. Therefore, breeding almond to produce self-compatible genotypes is very important. In this research identification and screening of 86 almond progenies obtained from selfing Touno after the self-pollination by PCR reaction with specific ...

Nemaguard has been the workhorse rootstock of the California almond industry for many decades. It is well adapted to the well-drained, non-calcareous loam and sandy loam soils common throughout the San Joaquin Valley. Nemaguard is vigorous, immune to rootknot nematode, compatible with all almond varieties, doesn’t sucker much, has decent anchorage and is easy to grow at the nursery. However, th...

conductance in almond and olive in response to water stress 2 3 RUNNING TITLE: LEAF HYDRAULIC FUNCTION IN ALMOND AND OLIVE 4 5 VIRGINIA HERNANDEZ-SANTANA*, CELIA M. RODRIGUEZ-DOMINGUEZ, J. 6 ENRIQUE FERNÁNDEZ, ANTONIO DIAZ-ESPEJO 7 Irrigation and Crop Ecophysiology Group, Instituto de Recursos Naturales y 8 Agrobiología de Sevilla (IRNAS, CSIC). Avenida Reina Mercedes, no 10, 410129 Sevilla, Sp...

Buffer type, pH and ionic strength, as well as the fraction of polyvinylpyrrolidone were optimized for efficient extraction of b-galactosidase from almond seeds. The enzyme was purified up to electrophoretic homogeneity employing (NH4)2SO4 (15–60 %) fractionation, size exclusion and ion-exchange chromatography. Molecular mass of b-galactosidase as estimated by gel filtration and SDS-PAGE was ap...

Almond seeds age rapidly during storage at high relative humidity (80%) an d moderate temperature (20°C). The content of lipid decreased during accelerated ageing up to 40 d. The levels of linoleic (Cl8:2) and linolenic (Cl8:3) acids in almond lipid fraction also decreased during agei/lg up to 20 d. The aged seeds contain high levels of malondialdehyde, a product of the peroxidatio/l of unsatur...

Moving towards sustainable agriculture implies exploring the interconnections between farming and the environment, and soil is a key component of sustainability. Mulching is one of the methods to protect and enhance the productivity of the soil. We studied here the effect of mulching applied to mandarin tree rows for weed control in two localities near Tortosa, Spain, to compare its performance...