A STRATEGY FOR MALE STERILITY FACILITATED RECURRENT SELECTION IN PEACH

Commercial peach is a highly homozygous self-compatible species with limited diversity.
The incorporation of exotic germplasm and breeding of new varieties is hindered by the labor required to generate large segregating populations.
Hand pollinations are characterized by a high failure rate with only 25% of pollinations resulting in fruit set.
Additionally, peach fruit typically produce a single seed, further reducing the potential seedling population size.
Two mechanisms that facilitate outcrossing, self-incompatibility and male sterility, exist in peach and closely related species.
Fruit set in self-incompatible and male sterile genotypes is facilitated via insect pollination.
In this presentation we describe procedures for the establishment and maintenance of a male sterility facilitated random mating breeding population.

VIII International Peach Symposium

R. Odom, J.X. Chaparro, T.G. Beckman

breeding, outcrossing, Prunus genus, self-incompatibility, self-pollination

https://doi.org/10.17660/ActaHortic.2015.1084.18