Sln.5B draws high yield and strong rust tolerance from both Robusta and Liberica parentage in its Indian breeding line.
Sln.5B is a tall Central Coffee Research Institute selection from Devamachy, a spontaneous Robusta x Arabica hybrid, crossed with S.333, a Liberica-introgressed line, so it carries both Robusta and Liberica ancestry. A CCRI summary describes uniform, medium-sized, semi-drooping plants with bold fruit, higher rust resistance and a yield potential around 1,500 kg/ha. WCR notes it tests highly rust-resistant globally but is considered susceptible under India's own high diversity of rust races.
Field notes
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Sln.5B and its sibling line Sln.5A both start from Devamachy. Sln.5A (Devamachy x S.881) is the most cultivated selection in India's non-traditional areas such as Andhra Pradesh, while Sln.5B comes from Devamachy x S.333.
Grown in
- Indiaorigin
Sources · 4 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.
- Arabica Varieties — A global catalog of Arabica coffee varieties from around the world (PDF, rev. Sept 4, 2025) · World Coffee Research
- India's Arabica Coffee Varieties · Counter Culture Coffee
- Coffee Varieties in India · Indian Coffee Culture
- Sln.5B (WCR Varieties Catalog) · World Coffee Research