Co-Authors:
Sachs, M., Division of Vegetable Crops, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Rylski, I., Division of Vegetable Crops, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Abstract:
The occurrence of bolting in open-field winter- and spring-grown celery (Apium graveolens L.) reduces the quality and yield of the product. The temperature which prevails in the nursery and in the fields during the plant's vegetative growth is a consequential factor which controls the development of the flower stalk. Seedlings were exposed to various temperature (soil and air) and daylength conditions for different periods during their growth in the nursery. Exposing young plants to non-inductive temperatures (soil or air) brought about a delay in bolting in the field-grown spring celery, irrespective of the daylength which prevailed during the treatments. Moreover, exposure of nursery-grown celery seedlings to high temperatures (25, 30 or 35°C) for short periods just before transplanting them into the open field caused a significant delay in the rate of bolting. This short-period high-temperature treatment may be of economic importance and can provide partial control of bolting in spring-grown celery. © 1980.
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