ISHS Acta Horticulturae 487: VI International Symposium on Processing Tomato & Workshop on Irrigation & Fertigation of Processing Tomato
MAPPING OF TOMATO FRUIT SLICE CHARACTERISTICS |
| Authors: | P. Cornillon, F. Duprat, M.G. Grotte, D. Loonis, M. Augé |
| Keywords: | dry matter, calcium, magnesium, potassium, lycopersicom esculentum |
| Abstract:
Fruit blossom-end rot is linked to plant mineral nutrition and particularly to calcium metabolism. Therefore, data on the distribution of dry matter and cation distribution in the healthy plant is required so as to obtain more information on the conditions which sustain this physiological disorder. We have mapped the fruit polar slice for which we have determined the variations in dry matter, potassium, calcium and magnesium. The results show that the distribution of these characteristics are not uniform and that their behaviour varies in space. The mapping shows axial symmetry for dry matter and calcium content, while it is looser for potassium and magnesium. Dry matter content varies between 3.12% and 5.52% FM; it is maximal on the axis and near the pistil zone. Calcium content is maximal around the fruit near the epidermis, and varies between 0.31% and 0.65% DM. Potassium content varies between 2.86% and 6.28% DM and magnesium content varies between 0.19% and .50% DM. | |
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