ISHS Acta Horticulturae 52: II Symposium on Timing of the Fieldproduction of Vegetable Crops
DETERMINATION OF RIPENESS OF CARROTS (DAUCUS CAROTA L.) |
| Authors: | D. Fritz, J. Habben |
| Abstract:
To determine the optimal harvest date of carrots, the development of the yield, the percentage of splitted and second growth carrots, the firmness and the content of dry matter, carotene and sugar (glucose, fructose, sucrose) as well as the respiration were investigated during the growth period. The percentage of splitted carrots, firmness, the content of dry matter, carotene and sucrose increased during ripening, while the content of monosaccharides and the respiration intensity decreased. The optimum harvest date of carrots seems to be reached, when the content of carotene and sucrose is highest and the content of monosaccharides and the respiration intensity lowest. Varieties tending to splitting, however, must be harvested earlier, as towards the end of the growth period the percentage of non-marketable roots increases to a higher degree than the total yield. | |
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