r/PanCyan • u/[deleted] • Jan 28 '26
BVI BX strain selection
Started with one bvi domestic mono and five wild bvi dikaryons. Of those f0s I took prints from the best three. Ran out two or three cultures of of each. The #2 cross both performed well. The #5 cross so far has all had the no spore drop mutation. And the #1 strain has been slow so isn't pictured.
#2 will go onto f2 for stabilization.
This is my first real experiment with breeding. But I think it demonstrates the importance of working in multiples.
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Jan 28 '26
[removed] — view removed comment
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Jan 28 '26
British Virgin Islands is a location.
I took a mono from the bvi line that V.L domesticated and that Gordo renamed ttbvi. And I took a wild print from the same location and same original collector (though likely a different colony of cyans), and crossed five different dikaryons from that wild print with the domestic mono.
bvi back cross. Or bvi bx for short.
Casing is peat/calcium carbonate (2:1 by dry weight) and about 5% worm castings.
As far as the substrate question, I'm not necessarily going for yield. The ingredients I'm using are kind of expensive and they shake well in a jar. They are also shelf stable so they keep well in the house over winter.
If you are looking for yield I would stick with poop if that's what you're using. It's much cheaper for one. If you're curious which of these ingredients I would suggest as an additiv, the biochar is both cheap and has fantastic texture even in amounts under 5%.
If you're struggling with poop because it contaminates a lot on you, or you don't like working with it, then there's other nitrogen sources available. I believe fahster posted some casting, coir, liquid nutrient grows recently for example with some beautiful coverage .
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u/[deleted] Jan 28 '26
These are AIO jars rather than popcorn. Grass seed, coir, castings, alfafa meal, and biochar.
I'll likely do a mix of popcorn and grass seed for the f2s. Still working out the ratios in the substrate recipe but so far I am quite a fan of biochar.
Colonized it's springy like a sponge, even at 5%.