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« on: February 12, 2021, 09:21:35 PM »
I know what you mean about losing them. They grow so slowly on a heat mat. I had six Pink Glow seeds sprout, and then I put them on 1/2" soil blocks. I forgot about them, and then planted some other seeds in the soil blocks. Fortunately, one grew enough for me to notice along side one of my pepper seedlings, so now it is on its own soil block.
I grew about 25 Hawaiian Gold seeds last year, and for the most part, the plants are still small. There are two plants that are much larger than the rest. In my experience, they look fuller than tissue culture plants I have received. My plants spent the winter on a heat mat and under a humidity dome, and I just put them outside. I had them in trays next to my seedlings, so they have been getting around 16 hours under LEDs There is also a tissue culture plant I received in the same time frame nearby (inside), and it is still about the same size as when I got it, but one of the seed plants has caught up to it. I don't have a greenhouse, so all this has been in the main house, where the winter temperatures have been in the low 60s most of the time.
I have a few Kauai Sugarloaf seeds that are a little smaller than yours that I sprouted on a paper towel in a plastic bag on a heat mat. I haven't tried sprouting them in coir, although I have some cinnamon seeds in a coir/sphagnum mix right next to them, just to say that I've been trying different seed sprouting methods, and haven't noticed much difference.
Edit: I just checked my sprouts, and yes, that is the top, but the plant will start rooting right at the base of that top opposite where it is pointing up, rather than anything more emerging from the seed husk. I plan to transfer them to the seed blocks now, so the roots don't grow into the paper towel.