Description
🌸 Vacin & Went Orchid Medium — the alternative to Knudson C; preferred for Cymbidium, Miltonia, and sympodial orchids. Uses ferrous sulphate (not Fe-EDTA) and organic nitrogen.
| 📦 Format | Powder → 1 L | 🔬 Grade | TC / Tissue Culture |
| ⚗️ Working pH | 5.0–5.5 | 🌡️ Storage | 2–8 °C, sealed |
💡 Vacin & Went vs Knudson C
V&W includes tryptone (organic nitrogen) and ferrous sulphate as the iron source — making it slightly richer than Knudson C and better suited to PLB development and shoot elongation in cool-growing sympodial genera. Some protocols use V&W for establishment and switch to Knudson C for multiplication.
🌸 Best for
- ✅ Cymbidium — PLB initiation and multiplication
- ✅ Miltonia, Odontoglossum alliance
- ✅ Cool-growing sympodial genera
- ✅ Orchid protocorm elongation to shoot
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