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UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
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UBUMENYI
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IBYAMBARWA
English
Mushroom Grain Spawn: Sterile Wheat Overgrown with Mycelium, Sinden 1932
Spawn used to be composted, washed manure packed into bricks, or into bottles that had to be smashed to get it out. James Sinden of Penn State patented spawn on cooked, sterilised grain instead. Every grain ends up coated in mycelium, the spawn shakes out of its jar, and it can be sown in rows like seed.
Source: J. W. Sinden, US 1,869,517 (1932), written for the field mushroom (Agaricus). The starter is a pure culture, here from the tissue-culture blueprint.
Hagati
3 weeks
Amabwiriza
1
1
Wet the wheat
Wet the wheat
Put wheat in a jar with just enough water for the grain to swell as it cooks and leave no excess. You can also use excess water and pour it off after sterilising. Sinden prefers the first way.
Ibikoresho by'iyi ntambwe:
Ingano1 as required
Amazi1 as requiredIbikoresho bikenewe:
Icupa ry'Ikirahure2
2
Plug and sterilise
Plug and sterilise
Stopper the jar with cotton so it stays sterile after steaming. Steam it at 15 to 20 lb pressure for no longer than an hour. The cooked grain is then about 71 % water.
Ibikoresho bikenewe:
Ipamba nywa amazi
Otokilave yo ku meza3
3
Inoculate
Inoculate
When the jar is cool, put in a bit of pure mycelium. A few grains shaken from an earlier grain culture also work, with no instrument needed.
Ibikoresho by'iyi ntambwe:
Umuco usukuye w'ibihumyo1 as requiredIbikoresho bikenewe:
Icupa ry'Ikirahure4
4
Incubate and shake
Incubate and shake
Keep the jar at 20 to 25 °C until the mycelium has overgrown the grain. Shake it now and then. Shaking spreads the mycelium and keeps the grains separate.
Ibikoresho bikenewe:
Igipimo cy'ubushyuhe cy'icyumbaIcupa ry'Ikirahure5
5
Shake it out and sow
Shake it out and sow
The spawn is ready when each grain is covered with a mat of mycelium. Shake it out and break up any lumps. Sow it in rows like radish or carrot seed, or in hills, 2 inches (5 cm) deep in the compost.
Ibikoresho bikenewe:
Icupa ry'IkirahureIbikoresho
3- 1 as requiredUmwanya
- 1 as requiredUmwanya
- 1 as requiredUmwanya
Ibikoresho bikenewe
4- Umwanya
- Umwanya
- Umwanya
Iki gishushanyo gikora
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