I have 10 seeds of a rare corn landrace. I probably won't be able to acquire more and the cultigen's long term fate is unknown. So, I want to do my best to preserve it for future generations.
Corn is largely out-breeding and used to growing in very large populations, so it's very susceptible to inbreeding depression. The seed I got came from a small but reasonably heterozygous, healthy population with a modest/good amount of diversity.
If I want to preserve the corn without crossing it to anything else, what should I do?
My thoughts are that I have to ensure that it does not breed true for maladaptive recessive alleles. So, I plan to increase seed stock until I have enough genetic material to grow out thousands of individuals and cull any sick plants over several generations, while trying to keep the population contributing to the next generation large. In other words, purging the poor genetics.
I also thought it might be a good idea to breed a few lines from the initial stock to ensure even more diversity.
Is my plan viable? What are my chances of success? Are there any better protocols?