Abstract
The growth of flower buds in a gynoecious cucumber cultivar was studied at 15, 21 and 27°C. Competition between buds in the same node was measured as the ratio of the growth rates of individual buds. This competition was stronger at 21 and 27 than at 15°C. At 15°C, at least 3 buds were about equally strong; at 21°C, 2 buds developed fast and suppressed the other buds; at 27°C, the first bud which developed suppressed all other buds. When plants were transferred from one temperature to another, the growth-rate ratio between buds in older nodes was maintained. In nodes formed in the new temperature regime, the growth-rate ratio was determined by the new temperature.
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