Yield performance and selection of Robusta coffee progenies at Kluang, Johore

M. Muhamad Ghawas and A. Wan Rubiah

Abstract

An evaluation of 14 Robusta coffee progenies in Kluang, Johore showed significant differences in yield. Fresh berry yields ranged from 2.55 a 4.75 t/ha per year and green bean yields, 0.474.91 t/ha per year. Four top progenitors (MCR 09, MCR 10, MCR 11 and MCR 16) with green bean yields of 0.72, 0,86, 0.91 and 0.82 t respectively, and 100-green bean weights ranging from 14.14 g to 15.95 g were identified and selected. Their progenilors were propagated for the establishment of a polyclonal seed garden and the production of polyhybrid seeds for interim recommendation. Monthly yield frequencies for three consecutive years (1986-88) showed that peak seasons for harvesting varied from year to year. The mean monthly yield frequency was highest between October to January (45.3%), followed by the months of April to May (23.1%). Yield production problems in areas with no regular drought were also discussed.

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