AgricultureAgronomyPlant SciencesCrop ImprovementFruit ScienceGermplasm EvaluationFruit Cultivar ImprovementPollination In Agricultural SystemsAlmond ProductionCross-pollinationHybrid CultivarsSelf-compatibility Breeding
Abstract Three new self-compatible, late-blooming cultivars of almond [ Prunus amygdalus Batsch, syn. P. dulcis (Mill.) D.A. Webb] have been released from the almond breeding program that is being developed at the Unidad de Fruticultura of Zaragoza (1). One of the main objectives of this program is to obtain late-blooming, self-compatible cultivars in an attempt to solve widespread problems of inadequate cross-pollination and spring frosts. The shell of these almonds is hard, fitting very well into the Spanish market, which is almost exclusively based on hard-shelled cultivars.