I have a large number of mosaic virus infected Hippeastrum.I have not noticed any lack of fertility in infected plants.Some varieties do have more resistance to the virus than others. I have never lost a plant to the virus,although many are weakened by it.Some do not bloom as reliably because of their weakened state.It is generally thought that papilio is not susecptable to the virus,therefore I am using it to breed resistance. On Sunday, June 12, 2016 3:56 AM, Christian Wang <realtreder@gmx.de> wrote: Hello, I was wondering if Hippeastrum seeds are generally sterlie, even if they come from virus infected plants. Does anyone know that? Thanks in advance! best wishes Chris :-)