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The rate of change in the standing crop of nectar allowed to accumulate in flowers, described here as the apparent secretion rate, can be resolved into two components: gross secretion rate and apparent reabsorption rate. A simple model shows how changes in these component rates may affect the apparent secretion rate. The ecological and physiological correlates of various temporal patterns of secretion are discussed in relation to whether the nectar carbohydrates originate from storage tissues or from immediate photosynthate.
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Búrquez et al. (1991) studied this question.
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