Lora, JorgeHormaza Urroz, José IgnacioHerrero Romero, MaríaRodrigo García, Francisco Javier2016-10-272016-10-272016II ISHS International Workshop on Floral Biology and S-Incompatibility in Fruit Species, Murcia, 23-26 de mayo de 2016http://hdl.handle.net/10532/3492In the last years, an important renewal of plant material is taking place in apricot, with the introduction of new cultivars from different breeding programs. However, the pollination requirements of many of these cultivars are unknown. In this work, the self-(in)compatibility and the S -alleles have been studied in a group of 40 apricot cultivars. Self-compatibility was determined by the observation of pollen tube growth under the microscope in self-pollinated flowers. The S -allele of each cultivar was identified by PCR analysisenHortofruticulturaConference MaterialAutocompatibilidadAlbaricoquePCRTubos polínicos