I have read of this delaying of Amarylliad seeds with cooler temperatures somewhere in the PBS before- there is a prolonged discussion on the conversion of growing cycles for different genera and seeds. In lower temperatures, I have sown South African seed of Nerines, Boophane and Haemanthus with delays of up to 4 months for full germination, thus putting the plants on a northern hemisphere growth cycle. Often they just won't get on with growing while it is too cold. The application of warmth to Clivia nobilis seeds in winter gave a dramatic increase in growth rate. I have also had delayed germination on Cyrtanthus helicticus which was sown 4 1/2 months ago and more are still germinating and I have seen similar behaviour on Cyrtanthus speciosus and Hippeastrum stylosum Peter (UK) On Sun, Aug 7, 2011 at 10:52 PM, J.E. Shields <jshields@indy.net> wrote: > That's true. I've stored Crinum seeds for up to maybe 6 months in the > fridge -- at about 39°F/4C. They go ahead and germinate (those that don't > just rot), and the germinated seeds can be planted OK. Left in the fridge > long enough, all end up rotted. > > Clivia seeds also keep in the fridge, for awhile. They seem to slowly lose > viability in the fridge, until eventually -- after a few months -- few or > none of them will germinate. > > I don't recall having tried to store other baccate seeds in the fridge. Do > others have experience with storing "recalcitrant" seeds, perhaps of other > genera? > > Jim Shields > > > At 09:39 PM 8/7/2011 +0000, Alberto wrote: > > >Jim, seeds you mention can not be frozen for long term storage but they > >can be "put to sleep" if maintained at low temperatures (above freezing > >point of course) to be eventually sown at the proper time in either > Hemisphere. > > > > ************************************************* > Jim Shields USDA Zone 5 > P.O. Box 92 WWW: http://www.shieldsgardens.com/ > Westfield, Indiana 46074, USA > Lat. 40° 02.8' N, Long. 086° 06.6' W > > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ >