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The exchange of fruit tree propagation material to different growing regions and countries is a primary source of new pests and pathogens, particularly graft-transmissible viruses and viroids affecting Prunus species worldwide. Traditional procedures often cannot effectively quarantine pathogens and pests with unknown etiology, prompting the study of alternative procedures including those based on...
A set of cultivars used as genitors in apricot breeding programs aimed at introducing sharka resistance were examined by AFLP molecular marker analysis. The markers obtained indicated that apricot cultivars resistant to sharka were related to the European cultivars, but they potentially share a common ancestor donor of sharka outside of the European group. Segregation of AFLP and RAPD markers has...
The loquat’s adaptation to Spain has proved very successful. In the Valencia area, the crop has met with very good environmental conditions for its development. Many new cultivars have been selected by growers and a European loquat germplasm collection has been established in Valencia at IVIA. An efficient sampling as well as implementation of germplasm resources requires the accurate identification...
A cultivar description of a loquat collection based on morphological traits, phenology and fruit quality is presented. Vegetative characteristics such as leaf blade length and width, leaf blade shape in cross section, thickness and distribution of lateral and central shoots, and size and shape of flower clusters were useful to distinguish cultivars. In this collection we found all categories described...
Morphological, phenological and fruit quality traits of 55 apricot cultivars, including the most important clones grown in Spain, France and Italy, were evaluated using principal component analysis. Given that the studied material was made up of commercial cultivars, the range of variation observed was narrower than expected. Variation was observed for traits related to phenology and fruit quality...
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