title: Incompatibility alleles in Corylus avellana L. cultivars.
abstract: Pollen-stigma compatibility relationships are reported for 55 filbert cultivars (cvs) (Corylus avellana L.). A total of 11 S-alleles have been identified amongst 36 cvs for which one or both S-alleles have been established. For the 20 cvs with only one known allele and the 17 for which neither allele have been identified further information is provided as to which alleles can be excluded as possibilities.
authors.affiliation: Department of Horticulture, Oregon State University Corvallis, Oregon, USA.
authors.forename: M M
authors.initials: MM
authors.lastname: Thompson