S.274 is an Indian Robusta clone from CCRI, a component of Sln.1R and the Robusta parent of Sln.6.
S.274 is a Robusta (C. canephora) clone selected by India's Central Coffee Research Institute. First released by CCRI in the late 1940s as part of Sln.1R, it is one of the two component clones (with S.270) that make up the Sln.1R polyclonal Robusta variety, required to be co-planted for fruit set, and it is also the Robusta-side parent (crossed with the Arabica variety Kent) of the introgressed Arabica selection Sln.6.
Family tree
Grown in
- Indiaorigin
Offspring
Sources · 5 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. Some details here are less settled than others.
- Arabica Varieties — A global catalog of Arabica coffee varieties from around the world (PDF, rev. Sept 4, 2025) · World Coffee Research
- Robusta Varieties — A global catalog of Robusta coffee varieties from around the world (PDF, rev. Sept 4, 2025) · World Coffee Research
- World Coffee Research variety page: Sln.1R · World Coffee Research
- Understanding Coffee Varieties: Arabica and Robusta in India · Agriculture.Institute
- India's Arabica Coffee Varieties · Counter Culture Coffee