ISHS Acta Horticulturae 189: I International Symposium of the Research and Cultivation of Roses
HARVESTING, PRUNING AND ROOT REACTIONS OF ROSES |
| Author: | H.W.M. Fuchs |
| Abstract:
Harvesting flowers caused dying off of roots of 'Motrea' rose plants on 4 root systems: 'Indica Major', 'Veilchenblau', 'Fredica' and 'Motrea'. Sixteen days after harvest the total root mass reached a minimum. From then on it increased quickly and towards the time the next flowers could be harvested the root mass was higher than at the previous harvest. After removing also the active lateral shoots initially no decrease of root mass was found, but the relative growth rate of the roots was lower than in plants, from which flowers had been harvested in the normal way. Harvesting flower stems with simultaneous removal of extra leaves resulted in a dramatic decrease in root mass. Regrowth started later and relative growth rate of the roots was lower compared to the control treatment. There was no difference between the 4 root systems tested with respect to this behaviour. | |
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