Quantifying the effects of pollen load and heterospecific pollen ratio on the species <i>Delphinium barbeyi</i> (Ranunculaceae)
Abstract
To date there are few studies that have carefully studied the impact that varying pollen quantity and proportion of heterospecific pollen has on reproductive rate of a flowering plants. My project aimed to assess the relationship between pollen quantity and composition on the subalpine larkspur, Delphinium barbeyi, by conducting hand-pollination treatments that varied in pollen composition (proportion of heterospecific pollen) and quantity. Across 6 different sites, a total of 96 racemes of D. barbeyi were subjected to different treatments consisting of D. barbeyi and Helianthella quinquenervis pollen in different proportions. A significant relationship was found between seed set and pollen quantity, when looking at a subsample of the data collected.
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References (25)
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