Description
Robusta coffee seedlings TR11 give growers a clone with a field record in Vietnam’s Central Highlands. WASI selected TR11 from a mother tree on a Dak Lak farm, and Vietnam’s agriculture ministry (then MARD) approved it as a national variety in 2011. It is valued for vigorous growth, long sturdy branches, high yield potential and leaf-rust resistance.
Each seedling is propagated by grafting or tissue culture, so it carries the mother clone’s traits. Below: sourced variety data, planting steps and what cross-border orders involve.
Specifications
| Parameter | Specification |
|---|---|
| Variety | TR11 robusta (Coffea canephora), clonal |
| Breeder | WASI, Dak Lak; approved by MARD in 2011 |
| Propagation | Grafting and tissue culture |
| Growth habit | Vigorous, with long, sturdy branches |
| Leaves | Medium-sized, lanceolate, light green when mature |
| Cherries | Elongated, ripening deep red, mainly in December |
| Yield potential | 5–6 t/ha green coffee in breeder trials |
| Bean size | Medium; about 18–19 g per 100 beans |
| Cherry-to-green outturn | About 24% |
| Leaf rust | 0% recorded in WASI trials |
| Optimal altitude | Around 500–800 m |
| Planting density | 1,000–2,000 plants/ha (single-stem pruning) |
| First crop | Year 2–3 after planting |
| Seedling age, height, container | Available on request |
Variety Characteristics & Applications
Yield. In WASI’s multi-site trials, TR11 averaged 5.1 t/ha of green coffee: 6.6 t/ha in Dak Lak, 5.0 t/ha in Lam Dong and 3.7 t/ha in Gia Lai (Phan Viet Ha, Vietnam Journal of Science, Technology and Engineering, 2017). World Coffee Research’s TR11 variety profile gives 5,000–6,000 kg/ha from limited breeder trials, not a yield guarantee.
Beans. WASI recorded an average of 18.9 g per 100 beans, with 83% of beans above screen 16 (6.3 mm). WCR classes the bean size as medium (screen 15–16).
Leaf rust. WASI’s trials recorded no leaf rust on TR11. WCR’s notes call it resistant, while its rating table lists intermediate resistance, so treat it as strong tolerance, not immunity. Resistance to nematodes and coffee berry borer is not established. See our entry on coffee leaf rust (Hemileia vastatrix).
Where it fits. New plantings and replanting of old, low-yield robusta in tropical areas with a distinct dry season and irrigation. WCR rates TR11’s nutrition requirement as high, so low-input farms should expect results well below the trial figures.
How Do You Plant Robusta Coffee Seedlings TR11?
Plant robusta coffee seedlings TR11 at the start of the rainy season in deep, well-drained soil, mixed with other compatible clones such as TR9, and irrigate through the dry season. Robusta is cross-pollinated: a block of one clone alone sets little fruit.
- Site: robusta favors roughly 24–30 °C, and coffee generally does well with about 1,500–2,500 mm of rain a year plus a distinct dry period before flowering; see ecological requirements of coffee plants. WCR puts TR11’s optimal altitude around 500–800 m.
- Clone mix: interplant TR11 with other compatible clones; many growers pair it with TR9.
- Density: 1,000–2,000 plants/ha with single-stem pruning.
- Protection: shade or windbreaks on exposed sites.
- Care: regular watering in the early dry seasons, balanced fertilizer, weed control and formative pruning.
- First crop: usually year 2 or 3, with full yield a few years later, if fertilization, pruning and irrigation are kept up.
Phytosanitary Rules, Packing & Shipping
Seedlings are live plants. Transit time, temperature and handling decide how they arrive, so we agree packing, transport mode and timing for each order and confirm them in the signed proforma invoice (PI).
- Plant-health documents: we arrange the phytosanitary certificate in Vietnam.
- Import rules (buyer’s responsibility): your national plant protection authority decides whether coffee planting material may enter and on what conditions. Some countries require an import permit issued before shipment; secure it, and share its conditions with us, before we dispatch.
- Quantities: from trial lots to plantation orders, subject to nursery availability.
- Terms: payment and shipping agreed per order; quote replies within 24 hours.
- See it first: visit Dak Lak with our team on a coffee farm tour.
Related Products
- Robusta coffee seeds TR9: the larger-bean WASI clone and a common planting partner for TR11.
- Coffee seeds for planting: our full range of seeds and seedlings.
- Robusta green coffee beans: the export grades Dak Lak robusta is sold in.
Frequently Asked Questions
How is TR11 different from TR9?
Both are WASI clones approved in 2011, with 5–6 t/ha yield potential in breeder trials. TR9 has bigger beans, about 23 g per 100 beans in WASI trials against 18.9 g for TR11, while TR11 is valued for vigorous growth and long, sturdy branches. Many growers plant them together for cross-pollination.
Can TR11 seedlings be exported?
Yes, subject to the importing country’s plant-health rules. We arrange the phytosanitary certificate in Vietnam; you confirm with your national plant protection authority whether an import permit or other entry conditions apply before we ship.
Is TR11 immune to coffee leaf rust?
No variety is immune. WASI recorded no rust on TR11 and World Coffee Research rates it between intermediate resistance and resistant, so good spacing, balanced nutrition and regular monitoring still matter, especially in wet seasons.
Can TR11 be grown from seed?
Not true to type. Seed from TR11 trees is pollinated by neighboring clones, so the plants it produces are hybrids that differ from TR11. That is why TR11 is multiplied by grafting or tissue culture.
