Dear Hans I am not sure if I thanked you for the reply you gave below before. Many thanks for the information. Darren >From: "Angela and Dean Offer" <angelasgarden@bigpond.com> >Reply-To: Pacific Bulb Society <pbs@lists.ibiblio.org> >To: "Pacific Bulb Society" <pbs@lists.ibiblio.org> >Subject: Re: [pbs] Hippeastrum seeds >Date: Mon, 7 Nov 2005 11:17:23 +0800 > >When sowing hippeastrum seeds they have to be very fresh seeds. >Cheers >Angela >Sunny Albany Western Australia >----- Original Message ----- >From: Hans-Werner Hammen <haweha@hotmail.com> >To: <pbs@lists.ibiblio.org> >Sent: Saturday, November 05, 2005 3:22 AM >Subject: Re: [pbs] Hippeastrum seeds > > > > Hello Darren: > > > > the total depth of these 50 cm x 18 cm boxes is 15 cm and the height of >the > > seed beds is then 12 to 14 cm. > > > > However; > > > > The dimensions are not critical and do not decide on fortune as regards >to > > raising seedling of hippeastrums or other amaryllogene plants with these > > papery foiled seeds. > > > > A lower drainage layer of some cm of seramis, perlite, expanded clay >bullets > > (regardless whether these are totally porous (Seramis) or not, or >charcoal > > grains is sufficient, let's say 5 cm. But 10 cm is good, too. > > > > Care should be taken (it should be controlled) that the drainage bullets >do > > not clog the drainage holes on the ground of the sowing box. I drill > > numerous additional drainage holes of 0.5 cm diameter to ensuire good >air > > supply from belw. That is soo important - particularly when I rinse so > > thoroughly with approx. 1 total seed bed volume of water(!) > > > > The drainage layer is then covered carefully - without mixing - with the > > substrate, that is coco peat, the height not being critical, too; >something > > like 9 cm. > > > > If you change the proportion of substrate to drainage layer towards the > > latter, then my previously recommended very thorough waterings might be >less > > critical for seedlings of those amaryllids (or any other seedlings) >which > > are supposed to be very sensible and likely to rot. On the other hand >you > > will have to water more often. > > > > If you sow seeds from a vigorous hippeastrum cultivar you will better >use >a > > full height of 10 cm of coco. But if you sow thse far smaller seeds of a > > more tiny cultivar for example from crossing H.cybister "Chico" with >another > > smaller growing hybrid like "Pink Floyd" then you reduce the coco layer >to > > 7 cm considering the far lower water uptake of these more delicate > > seedlings. > > And if you sow Cyrtanthus Mackenii (I did this summer) - then only 5 cm >coco > > is sufficient. > > The loss of sed bed hjeight is compensated by a thicker drainage layer. > > > > The question when the seedlings are to be transplanted can not be >answered > > schematically either: This is in your decision and depends on the > > observation - "WHEN do the seedlings obviously become too crowded". If >you > > have had a good germination rate and furthermore experience a rapid >growth > > of vigourous seedlings you will have to transplant earlier. The minimum >time > > I keep these seedlings together is 5 months. The maximum timespan I let >the > > seedlings together was 10 months in single cases, but I do not recommend > > that. The meanwhile rich network of stronger roots from the individual > > plants is not easily separatable any more and serious damage to the >basal > > plates is very probable to happen when using force. > > > > Hans-Werner > > > > >From: "Darren Sage" <darrensage100@hotmail.com> > > >Subject: Re: [pbs] Hippeastrum seeds > > >Date: Wed, 02 Nov 2005 22:56:11 +0000 > > > > > >How deep are those trays illusstrated? How long do the seedlings stay >in > > >them? > > > > > > >From: "Hans-Werner Hammen" <haweha@hotmail.com> > > > >Subject: Re: [pbs] Hippeastrum seeds > > > >Date: Wed, 20 Jul 2005 17:22:18 +0000 > > > > > > > >I sow into freshly recontituted coco peat substrate, and I put every > > > >single seed, one beside another with blunt tweezers into slits formed > > >with a ruler. > > > >This is the most accurate and yes, rather rapid method. > > > > >http://img.photobucket.com/albums/v215/… > > > > > > > > > > _______________________________________________ > > pbs mailing list > > pbs@lists.ibiblio.org > > http://www.pacificbulbsociety.org/list.php > > > >_______________________________________________ >pbs mailing list >pbs@lists.ibiblio.org >http://www.pacificbulbsociety.org/list.php
