Stature: TallOptimal altitude: Low, MediumQuality at high altitude: GoodCoffee leaf rust: Low resistance/susceptible
History & Origin
K7 was released in Kenya in 1936 after five generations of selection from the original population by Scott Agricultural Laboratories (for a history of Scott Labs see SL28. It has been widely used in modern breeding programs in Kenya and Tanzania.
Related varieties
Morphology
- Stature
- Tall
- Leaf tip color
- Light Bronze
- Bean size
- Large
- Yield potential
- Medium
Altitude & Quality
- Optimal altitude
- Low, Medium
- Quality at high altitude
- Good
Disease Resistance
- Coffee leaf rust
- Low resistance/susceptible
- Nematode
- Susceptible
- Coffee berry disease
- Tolerant
Agronomy
- Year of first production
- Year 3
- Nutrition requirement
- Medium
- Ripening
- Unknown
- Cherry to green outturn
- High
- Planting density
- 1000-2000 plants/ha (using single-stem pruning)
Genetics
- Genetic group
- Bourbon-Typica group (Bourbon related)
- Lineage
- Selected from French Mission. Bourbon-like genetic background.
- Breeder
- Individual farmer selection: R.H. Walker in Kenya in 1936
מבוסס על World Coffee Research, Arabica Catalog · CC BY-SA 4.0