TR9 is a Vietnamese WASI Robusta clone bred for very high yield, large bean size and high cup quality.
TR9 is a dwarf/compact Vietnamese Robusta clone bred by WASI, selected from an open-pollinated mother tree and propagated by grafting. Very high yield with large beans, optimal at 500-800 m. WCR's notes describe it as resistant to coffee leaf rust and of high cup quality. Must be co-planted with other clones for fruit set.
Field notes
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TR9's mother tree came from a farm in Dak Lak province, and the ministry approved it as an official national variety in 2011.
Family tree
Grown in
- Vietnamorigin
Offspring
Sources · 2 Every sentence here was checked against a source we read. Taste notes are what guides describe, not promises about your bag. Last revised 2026-11-11.
- Robusta Varieties — A global catalog of Robusta coffee varieties from around the world (PDF, rev. Sept 4, 2025) · World Coffee Research
- TR9 (WCR Varieties Catalog) · World Coffee Research