Some of our pear trees grafted onto quince rootstock and planted at the edge of our marsh do fine with their roots under water for six months of the year!
Why seeds ?
Every quince tree I know sends out suckers each year . Find someone with a quince tree nearby and beg a sucker off them . Quicker than seeds plus you will get a known type
I you lived near me you could have a dozen no problem.
David
Living in Anjou , France,
For the many not for the few
http://www.permies.com/t/80/31583/projects/Permie-Pennies-France#330873