In article ,
Janet Tweedy wrote:

Would it really be true that seeds that float won't germinate and to
throw them away?
(It says to put all seeds in a bucket of water to test them before
sowing and then goes on about throwing away the floating ones!

In many cases, yes, and I think that apple is one. In others, no.
The reason is that floating seeds may be empty, or may have been
eaten by a weevil.


Regards,
Nick Maclaren.