Abstract
Introgression of Angola Novo-Redondo origin into the Deli origin was achieved for the first time in Côte d’Ivoire. Unfortunately, the genetic variability of (Deli × Angola Novo-Redondo) genitors selected was a challenge facing seed production. The best (Deli × Angola Novo-Redondo) genitor LM 5448 T was selfed expecting more stable genotypes for improved oil palm productivity. (Deli × Angola Novo-Redondo) selfed × La Mé progenies were planted at Ehania in Côte d’Ivoire. At maturity, they presented 8% rise over the controls’ mean (155.72 kg palm-1 yr-1) for total bunch weight (TBW). ANOVA revealed difference between (Deli × Angola Novo-Redondo) selfed genitors for bunch production, vertical growth rate, and bunch characteristics. DMRT showed that progenies overlapped each other indicating their genetic resemblance, a feature supported by the low CV values (3-8%) of all the parameters measured. Progenies LM 22723, LM 22835, and LM 23169 whose increase over controls’ means for TBW and bunch number were 11% and 12%, respectively, and whose mean Fusarium index was 56 should be selected for commercial seed production. Estimated breeding values of LM 15516 D and LM 15311T, Group A parents of the 3 progenies would help predicting planting materials’ performances.
Highlights
Oil palm (Elaeis guineensis Jacq.) is a perennial plant species found in wild or subspontaneous form in African rainforests
Group A was represented by 15 genitors, including 10 from La Mé (LM) 5448 T selfed (4 tenera, 3 dura, and 3 pisifera), 4 Deli dura selected in Dabou (Côte d’Ivoire), and LM 5448 T, a descendant of a (Deli × Angola Novo-Redondo) cross
Darkwah et al (2020a) selected 7 dura accessions from Ghana for their high total bunch weight (TBW) contributed by high Bunch number (BN) and average bunch weight (ABW)
Summary
Oil palm (Elaeis guineensis Jacq.) is a perennial plant species found in wild or subspontaneous form in African rainforests. Palm oil demand is a function of both the growing increase in food and non-food uses and in world population. In 2018, the continent’s demand for oil and fats was estimated at 30.64 million tons (Bakoumé et al 2018). The use of high yielding plant material coupled with best management practices is essential to meet this growing demand for palm oil. This involves opting for the tenera oil palm, a hybrid (sh+/sh-) resulting from a cross between the dura, homozygous (sh+/sh+) with a thick shell of more than 2 mm, and the pisifera, homozygous (sh-/sh-) without a shell. Pisifera has generally sterile and abortive female inflorescences (Bakoumé, 2016)
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