Genetic signature in mineral nutrition in oil palm (Elaeis guineensis Jacq.): A new panorama for high yielding materials at low fertiliser cost
Significant differences in mineral nutrition have been demonstrated between progenies and main categories at PT Socfindo (Jacquemard et al, 2002). New set of investigation has been conducted based on larger genetic background. It includes 489 progenies observed in 25 genetic trials planted in Aek Loba Timur Project and 63 commercial blocs covering around 3500 hectares dispatched through all PT Socfindo estates. Leaf contents in major elements constitute important genetic signature that allows characterization and individualization of nutritional level of each ALT project families according their genetic background. Observations achieved on commercial blocs confirm the signature of ALT project derived commercial categories. Some large groups show very distinct characteristics in their nutrient levels such as: Low Nitrogen - low Potassium Low Nitrogen - high Potassium High Nitrogen - low Potassium In addition, some high yielding families express specific behaviour linking Calcium to their Chlorine absorption, then limiting Potassium absorption. Relation-ship between all these elements is discussed. Providing of high yielding planting material more frugal in fertilizer input is discussed. This new panorama offered to research and oil palm sector is an added value on the way of sustainable palm oil.
| Main Authors: | , , , , |
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| Format: | conference_item biblioteca |
| Language: | eng |
| Published: |
s.n.
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| Subjects: | F30 - Génétique et amélioration des plantes, F61 - Physiologie végétale - Nutrition, F04 - Fertilisation, Elaeis guineensis, http://aims.fao.org/aos/agrovoc/c_2509, http://aims.fao.org/aos/agrovoc/c_3840, |
| Online Access: | http://agritrop.cirad.fr/554337/ http://agritrop.cirad.fr/554337/1/document_554337.pdf |
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| Summary: | Significant differences in mineral nutrition have been demonstrated between progenies and main categories at PT Socfindo (Jacquemard et al, 2002). New set of investigation has been conducted based on larger genetic background. It includes 489 progenies observed in 25 genetic trials planted in Aek Loba Timur Project and 63 commercial blocs covering around 3500 hectares dispatched through all PT Socfindo estates. Leaf contents in major elements constitute important genetic signature that allows characterization and individualization of nutritional level of each ALT project families according their genetic background. Observations achieved on commercial blocs confirm the signature of ALT project derived commercial categories. Some large groups show very distinct characteristics in their nutrient levels such as: Low Nitrogen - low Potassium Low Nitrogen - high Potassium High Nitrogen - low Potassium In addition, some high yielding families express specific behaviour linking Calcium to their Chlorine absorption, then limiting Potassium absorption. Relation-ship between all these elements is discussed. Providing of high yielding planting material more frugal in fertilizer input is discussed. This new panorama offered to research and oil palm sector is an added value on the way of sustainable palm oil. |
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