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Effects of inbreeding on growth and yield of oil palm

Inbreeding of oil palm

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Abstract

The effects of inbreeding were studied in three oil palm (Elaeis guineensis Jacq.) trials in the Democratic Republic of Congo (Congo). In selfings, marked inbreeding depression was observed for yield of fruit bunches, mean bunch weight and bunch number, but there was little effect on bunch composition. Most vegetative measurements were significantly affected by selfing, but leaf production rate and leaf area ratio were unaffected. Sib-crossing had less depressive effect than selfing, and in some families sib-crosses were superior to outcrosses. Where selection needs to be done within inbred families, our study suggests that leaf area ratio and bunch composition would be useful criteria.

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Abbreviations

Fx:

inbreeding coefficient

FFB:

fresh fruit bunches

F/B:

fruit to bunch ratio

M/F:

mesocarp to fruit ratio

O/M:

oil/mesocarp ratio

K/B:

kernel/bunch ratio

LAR:

leaf area ratio

VDM:

vegetative dry matter

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Author notes

  1. F. Dumortier

    Present address: Dami Oil Palm Research Station, Papua New Guinea

Authors and Affiliations

  1. Plantations et Huileries du Congo, Yaligimba, Democratic Republic of Congo

    N. Luyindula & N. Mantantu

  2. Joint Research Scheme, Binga, Democratic Republic of Congo

    F. Dumortier

  3. Highlands, New Road, Great Barford, Bedford, U.K.

    R. H. V. Corley

Authors
  1. N. Luyindula
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  2. N. Mantantu
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  3. F. Dumortier
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  4. R. H. V. Corley
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Corresponding author

Correspondence to R. H. V. Corley.

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Luyindula, N., Mantantu, N., Dumortier, F. et al. Effects of inbreeding on growth and yield of oil palm. Euphytica 143, 9–17 (2005). https://doi.org/10.1007/s10681-005-6735-1

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  • DOI: https://doi.org/10.1007/s10681-005-6735-1

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