Grey Oyster (Pleurotus ostreatus) is a reliable and fast-growing gourmet mushroom known for its adaptability, high yields, and ability to thrive on low-cost substrates like straw, sawdust, and coconut husk. Its mild flavour and meaty texture make it a local favourite among restaurants, home cooks, and bulk buyers across Sri Lanka.
This agar plate features a clean, sector-free strain grown on nutrient-rich media under sterile lab conditions. It’s ready for immediate transfer to grain spawn jars or additional agar plates for culture expansion.
What You’ll Receive
- 1 × 100 mm sterile agar plate fully colonised with Pleurotus ostreatus
- Labeled with strain ID and pour date for easy tracking
- Contamination-free and freshly sealed; best used within 4 weeks (store at 2–5 °C)
Recommended Growing Conditions
- Spawn run: 22–30 °C in low light, 60–70% RH
- Fruiting: 18–28 °C, 85–95% RH, high fresh-air exchange, indirect light (500–1,000 lux)
- Substrates: Paddy straw, coconut coir, banana stem, or hardwood sawdust with 5–10% bran supplementation
Why Grow Grey Oyster?
- Fast colonisation—grain spawn typically ready in 7–10 days
- Performs well in Sri Lankan temperatures and high humidity
- High biological efficiency on locally available agricultural waste
- Strong demand in both urban and rural markets
Common Applications
- Expand to grain spawn and inoculate fruiting blocks or bags
- Use for commercial production in low-tech or semi-automated systems
- Maintain as a master culture for continuous spawn preparation
- Apply in agro-waste recycling, community training, or cultivation research
This culture is ideal for growers across Sri Lanka who want fast results, dependable yields, and a mushroom that adapts easily to local substrates and climate. Whether you’re growing at home or scaling a commercial operation, Grey Oyster delivers performance and profit.
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