The effects of water and phosphorus on floral traits and nectar production of <i>Ipomopsis aggregata</i>
Abstract
Floral traits and nectar production of Ipomopsis aggregata were measured in response to water and phosphorus treatments applied to two morphotypes. Typical morphotypes underwent water and phosphorus treatments. Because stunted floral traits may be a response to drought stress, only water treatments were applied to stunted morphotypes. Observations were completed within three sites in Gothic, Colorado. In typical I. aggregata, corolla width was increased by phosphorus treatments and nectar production rate was increased with water additions. Water had no significant effect on plants containing stunted flowers; however, stunted plants produced typically sized flowers within the second week of the experiment.
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