|
Differences between Arabica and Robusta
|
Arabica |
Robusta |
Date species described |
1753 |
1895 |
Chromosomes (2n) |
44 |
22 |
Time from flower to ripe cherry |
9 months |
10-11 months |
Flowering |
after rain |
irregular |
Ripe cherries |
fall |
stay |
Yield (kg beans/ha) |
1500-3000 |
2300-4000 |
Root system |
deep |
shallow |
Optimum temperature (yearly average) |
15-24° C |
24-30° C |
Optimal rainfall |
1500-2000 mm |
2000-3000 mm |
Growth optimum |
1000-2000 m |
0-700 m |
Hemileia vastatrix |
susceptible |
resistant |
Koleroga |
susceptible |
tolerant |
Nematodes |
susceptible |
resistant |
Tracheomycosis |
resistant |
susceptible |
Coffee berry disease |
susceptible |
resistant |
Caffeine content of beans |
0.8-1.4% |
1.7-4.0% |
Shape of bean |
average 1.2% |
average 2.0% |
Typical brew characteristics |
flat |
Oval |
Body |
acidity |
bitterness, full |
|
|
|
|