Faculty Mentor
Robin O'Quinn
Presentation Type
Poster
Primary Discipline of Presentation
Biology
Abstract
Seed germination in plants is controlled by several mechanisms, including the presence of phytohormones like gibberellins, as well as environmental conditions, such as temperature, light, and moisture. Germination of dormant seeds can be promoted by the exogenous application of Gibberellic Acid (GA3). GA3 acts as a natural endogenous regulator of dormancy. Clematis hirsutissima, commonly known as Sugarbowls, in the plant family Ranunculaceae, is an important perennial species that contributes to biodiversity in western prairie ecosystems by providing habitat for pollinators and wildlife; and it is also a species that shows characteristic embryo dormancy. This native to Washington, has been used for its medicinal properties by Indigenous peoples for thousands of years, and it is also used in contemporary horticulture for its distinct beauty. Here we report on the effect of exogenous GA3 application on germination in C. hirsutissima seeds across a cold stratification time gradient. We subjected GA3 treated and untreated (control) C. hirsutissima seeds to a cold moist stratification (3° C) for 14, 28, 56, and 84 days.
Recommended Citation
Ogle, Ashley Grace, "The Role of Exogenous Gibberellic Acid (GA3) Application in Breaking Seed Dormancy in Clematis hirsutissima" (2024). 2024 Symposium. 15.
https://dc.ewu.edu/srcw_2024/works_2024/works_2024/15
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
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The Role of Exogenous Gibberellic Acid (GA3) Application in Breaking Seed Dormancy in Clematis hirsutissima
Seed germination in plants is controlled by several mechanisms, including the presence of phytohormones like gibberellins, as well as environmental conditions, such as temperature, light, and moisture. Germination of dormant seeds can be promoted by the exogenous application of Gibberellic Acid (GA3). GA3 acts as a natural endogenous regulator of dormancy. Clematis hirsutissima, commonly known as Sugarbowls, in the plant family Ranunculaceae, is an important perennial species that contributes to biodiversity in western prairie ecosystems by providing habitat for pollinators and wildlife; and it is also a species that shows characteristic embryo dormancy. This native to Washington, has been used for its medicinal properties by Indigenous peoples for thousands of years, and it is also used in contemporary horticulture for its distinct beauty. Here we report on the effect of exogenous GA3 application on germination in C. hirsutissima seeds across a cold stratification time gradient. We subjected GA3 treated and untreated (control) C. hirsutissima seeds to a cold moist stratification (3° C) for 14, 28, 56, and 84 days.
