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In almond, the presence of double seeded nuts significantly reduces their commercial value. For this reason, in breeding programs of this species, seedlings producing double seeds are usually eliminated. In order to avoid this trait in the offspring and increase the efficiency of the breeding programs it is important to know its genetic control. In this work, heritability of double seeds was estimated...
Chilling injury (CI) is a major physiological problem limiting consumption and export of peach and nectarine (Prunus persica (L.) Batsch). To clarify the genetic basis for chilling injury, inheritance of the major CI symptoms mealiness, flesh browning, flesh bleeding, and flesh leatheriness were examined over three years in two related peach progenies. In addition, genetic relationships among traits...
‘Marcona’ and ‘Desmayo Largueta’ are the most widely cultivated almonds in Spain, representing around 27% of the total production and 34% of the entire almond growing surface. The excellent quality of their kernels makes them highly appreciated and demanded worldwide. However, due to their self-incompatibility, they should be grown along with cross-compatible cultivars, whose lower kernel quality...
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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