CONTRIBUTION TO THE STUDY OF INHERITANCE OF THE CHARACTER SELF-INCOMPATIBILITY IN APRICOT

Trials were carried out for 3 years on over 100 seedlings (10 years old) belonging to two progenies, obtained by crossing a mother, considered to be self-incompatible by the constitutor (“Goldrich”), and two self-compatible pollinating fathers, “Amabile Vecchioni” and “Icapi 34/6” (self-pollinated “Precoce Colomer”).

Results of passive self-pollination adopted in the field (over 250 flowers per seedling) were compared with microscope observations under fluorescence light (ABF) on laboratory self-pollinated flowers.

Study of apricot self incompatibility inheritance was found to be more complex than expected from research on other Prunus. Results showed hybrid segregation percentages that were not in agreement with the initial monogenic hypothesis.
Other possible hypothesis are reported and analyzed in depth.

XI International Symposium on Apricot Culture

J.M. Audergon, R. Guerriero, P. Monteleone, R. Viti

self-incompatibility, pseudo-compatibility, breeding, Prunus armeniaca

https://doi.org/10.17660/ActaHortic.1999.488.43