1. Breeding & stock seed
Parent lines maintained at Chiang Mai; stock seed produced under isolation protocols.
Seed quality
Germination, purity, and lot integrity.
Every commercial lot is tested before release — so distributors and growers can sow with confidence.
Commercial seed you can specify with confidence
- Lot coding & germination certificates on request
- Separate highland and lowland recommendation lists
- Trial packs before large commercial orders
- Technical notes for key brassica and fruiting lines
Ask sales for the latest germination certificate on any active lot. We retain samples from commercial releases for traceability.
Request lot data
Lab & field
How a lot reaches your warehouse
2. Hybrid seed production
Contract production with monitored flowering, pollen control, and harvest windows.
3. Cleaning & testing
Physical purity checks and germination tests before a lot is released for packing.
4. Packing by market
Trial packs, foil sachets, and bulk packs labelled with variety code and lot number.
5. Storage
Climate-controlled stores at HQ; ship-on-order to protect germination in humid climates.
6. After-sales
If a lot underperforms against certificate claims, contact sales with lot code for review.
How to order
From enquiry to seed in your warehouse.
- Tell us your crop & climate — Share target market, sowing window, and pack type.
- We shortlist F1 lines — Matched to trial data and disease pressure.
- Samples & technical notes — Trial packs and agronomist support.
- Scale commercial supply — Lot-coded seed with germination reports.
Specify SIAM seed for your next season
Distributors and large growers — email us your crop plan and region.
Contact sales