Yield performance of Robusta coffee clones top-worked on Liberica coffee

M. Muhamad Ghawas

Abstract

An evaluation of 13 Robusta coffee clones top-worked on Liberica coffee at Kluang, Johor showed significant differences in yield and other monitored parameters. Besides being early bearing, the three top yielders (MCR 28, MCR 29 and MCR 36) gave potential mean green bean yields of 1.78, 1.59 and 1.66 t/ ha respectively, equivalent to fresh berry yields of 8.11, 7.60 and 7.08 t/ha. The coefficients of variation for yield of the three identified clones were among the lowest (15.1–20.4%) as compared with the overall mean of the clones (25.3%) and the check plants (43.8%).

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