Sln.3R

CxR (Congensis x Robusta)

Com­pact plant stature with good yield­ing poten­tial, suit­able for high-den­si­ty planting.

Yield Potential
1500-2500 kg/ha
Country of release
India
Contents of mucilage in the cherry
High
Bean Size
Large (screen size >17)
Coffee leaf rust
Tolerant
Susceptible
Resistant
Coffee Berry Disease
Unknown
Susceptible
Resistant
Nematode
Tolerant
Susceptible
Resistant
Coffee Berry Borer
Susceptible
Susceptible
Resistant
Shoot hole borer (Xylosandus compactus)
Susceptible
Susceptible
Resistant

Agronomics

Stature
Dwarf/Compact
Year of first production
Year 2
Nutrition requirement
Medium
Ripening of fruit
Average
Cherry to green bean outturn
20%
Planting density
1000-2000 plants/ha (using single-stem pruning)
Leaf tip color
Light Bronze
Additional agronomic information
Relatively high water requirement for blossom and backing compared to other Robusta varieties. It is considered year-1 producing when using clones. If using seed, it will produce in year 2 and year 3, when cultivated under shade. Using irrigation can assist with early ripening. The planting density for this variety ranges from to 2.4m x 2.4m to 2.7m x 2.7m. Cultivated at altitudes of 500 to 1000 meters above sea level. Yield of up to 1500 kg/ha under rain-fed and shaded conditions and up to 2500 kg/ha under intensive cultivation practices including blossom & backing irrigation.

Background

Type
Polyclonal
Genetic Description
Guinea x Coffea congensis group
Lineage
Coffea congensis x Coffea canephora and recurrent back cross to Robusta. Selection from BC2.
Breeder
Central Coffee Research Institute (CCRI), Coffee Board of India
History
The main objective of developing this hybrid is the incorporation of compact plant stature of Coffea congensis into the Coffea canephora variety Sln.1R to enable high-density planting so as to increase productivity, coupled with improving bean and beverage quality.
Explore

Related Varieties

Perdenia

Old Robusta

Vigorous, wide-spreading, grow into moderately large trees. High-yielding, beans relatively small in size.

Sln.1R

S.274, CxR (Congensis x Robusta)

Plants that are very vigorous and grow into moderately large trees.

Sln.2R

Balehonnur Robustas, CxR (Congensis x Robusta)

Plants that are very vigorous and grow into moderately large trees and produce large beans.

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