Fine-root growth dynamics in cacao (Theobroma cacao)
Fine-root density in a mature cacao plantation in Bahia/Brazil was monitored at weekly intervals from October, 1980 until March, 1981. About 40 gm-2 of fine roots (diameter minor 1mm) were found during this period. The relative stability of this value over the six months period contrasted with significant changes in the number of growing root tips per unit of soil volume. These changes were not conditioned by the rainfall pattern although low root tip values were counted at the end of a minor drought period. A significant negative correlation was found between a shoot growth flush in January and the activity of the fine-root system as measured by the number of new root tips.
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| Auteurs principaux: | , , |
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| Format: | biblioteca |
| Langue: | eng |
| Publié: |
Amsterdam (Países Bajos): Springer,
1982
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| Sujets: | THEOBROMA CACAO, ENRAIZAMIENTO, SISTEMA RADICULAR, BROTACION, YEMA (PLANTA), ETAPAS DE DESARROLLO DE LA PLANTA, |
| Accès en ligne: | https://doi.org/10.1007/BF02374650 |
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| Résumé: | Fine-root density in a mature cacao plantation in Bahia/Brazil was monitored at weekly intervals from October, 1980 until March, 1981. About 40 gm-2 of fine roots (diameter minor 1mm) were found during this period. The relative stability of this value over the six months period contrasted with significant changes in the number of growing root tips per unit of soil volume. These changes were not conditioned by the rainfall pattern although low root tip values were counted at the end of a minor drought period. A significant negative correlation was found between a shoot growth flush in January and the activity of the fine-root system as measured by the number of new root tips. |
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