Journal of Oil Palm Research Vol. 6 No. 1 1994 June, p. 14-24
VARIATION IN MALAYSIAN DURA X PISIFERA PLANTING MATERIALS. I. BUNCH YIELD
Received: 9 December 1992 Accepted: 27 May 1993
A random sample of 99 dura x pisifera (D x P) biparental progenies from six agencies were evaluated for their yield performance. The performances of the materials from the six agencies were significantly different. On the average, the trial produced a fresh fruit bunch (FFB) yield of 123.57 kg/palm/year. Among the six agencies, the highest mean yield was 132.01 kg/palm/year from Agency 4. Fifteen outstanding progenies had FFB productions ranging from 138.39 to 158.17 kg/palm/year: these high yields were a result of balanced bunch number (BNO) and average bunch weight (ABWT). A large proportion of the variation – between 80 to 90 percent – was confined to variation at the seedling level. The proportion of genetic variability attributed to progeny differences was 7-20 per cent. Broad sense heritabilities (h2B) using intra-class correlation were 0.39 for ABWT, 0.19 for BNO and 0.13 for FFB
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* Palm Oil Research Institute of Malaysia,
P.O. Box 10620,
50720 Kuala Lumpur, Malaysia.
+ Department of Genetics,
Universiti Kebangsaan Malaysia.