Abstract
Many researchers analyze the effect of water deficits on microsporogenesis, although few study the influence of flooding. This study reviewed the effects of drought and flood stress on pollen quality and quantity in Clivia miniata including pollen size, viability, germination, and number of pollen grains per anther while evaluating how stress influences these features. The study provides evidence that microsporogenesis of Clivia miniata is more sensitive to flooding than to drought. The studied pollen features can be ranked based on their degree of sensitivity to flooding in the following order: number of pollen grains per anther > pollen germination > pollen fertility > pollen size. A newly modified method of counting the number of pollen grains per anther was shown to be highly sensitive and can be applied to evaluate pollen productivity using a small number of plants.
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