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Ablation reduces androgyny and improves flowering and bunch production in palms of Coarí x La Mé hybrid (Elaeis oleifera x Elaeis guineensis)
La ablación reduce la androginia y mejora la floración y producción de racimos en palmas del híbrido Coarí x La Mé (Elaeis oleifera x Elaeis guineensis)
DOI:
https://doi.org/10.15446/agron.colomb.v41n3.109508Keywords:
flowering physiology, oil palm, reproductive development (en)fisiología de la floración, palma de aceite, desarrollo reproductivo (es)
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The first inflorescence in OxG hybrids after transplant to the field is often androgynous and should be removed to stimulate the initial vegetative growth of palms. The objective of this study was to evaluate the effects of early inflorescence ablation on later inflorescence emission and normal bunch development. The experimental design was completely randomized with two treatments (with early ablation and without ablation), four replicates, and 16 palms per replicate. The emission of female, male, and androgynous inflorescences, the number of leaflets, leaf area and dry weight of leaf 17, number of normal bunches formed, and annual production were estimated. The emission of normal female inflorescences increased with total ablation, while androgynous inflorescences increased without ablation. Ablated palms increased their leaf area, leaf dry weight, and annual bunch production.
La primera inflorescencia en los híbridos OxG después del trasplante al campo suele ser andrógina y debe eliminarse para estimular el crecimiento vegetativo inicial de las palmas. El objetivo fue evaluar los efectos de la ablación de inflorescencias tempranas sobre la emisión de inflorescencias posteriores y el desarrollo normal del racimo. El diseño experimental fue completamente al azar con dos tratamientos (con ablación temprana y sin ablación), cuatro repeticiones y 16 palmas por repetición. Se estimó la emisión de inflorescencias femeninas, masculinas y andróginas, número de folíolos, área foliar y peso seco de la hoja 17, número de racimos normales formados, y producción anual. La emisión de inflorescencias femeninas normales aumentó con la ablación total, mientras que las inflorescencias andróginas aumentaron sin ablación. Las palmas con ablación aumentaron el área foliar, el peso seco de la hoja y la producción anual de racimos.
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