Start Date
23-4-2026 12:00 AM
Description
We tested the relationship between gibberlin and plant growth through the use of gibberellic acid and different dwarf millet variants. Subjects were split into two groups: group one with no gibberellic acid application, and group two with periodic gibberellic application. Each group consisted of 17 pots. Each row held one mutant variant, while the bottom left pot was removed to store water. The objective was to have significant data by the end of the semester to prove the relevant relationship of gibberellin and plant growth.
Research Highlights
The Problem: This research investigates how gibberellic acid (GA_{3}) influences growth in Setaria viridis (green foxtail) and whether specific mutant genotypes (NMU 1184 M2, NMU 11711 M2, and NMU 3 M2) exhibit defects in hormone signaling or growth regulation pathways.
The Method: Researchers conducted a greenhouse experiment comparing wild-type plants and three mutant varieties across two identical trays, applying three GA_{3} treatments to the experimental group during weeks 3–4 while maintaining a consistent fertilizer schedule and measuring plant height and leaf count weekly.
Quantitative Finding: The wild-type (WT) variant reached a mean plant height of approximately 35 cm with GA_{3} treatment compared to approximately 22 cm without treatment; the NMU 11711 M2 mutant reached approximately 25 cm with GA_{3} compared to approximately 12 cm without; the NMU 1184 M2 mutant reached nearly 20 cm regardless of treatment; the NMU 3 M2 mutant showed near-zero growth in both conditions.
Qualitative Finding: Wild-type plants demonstrate normal gibberellic acid sensitivity through a strong positive growth response; mutant genotypes show reduced or minimal responses, suggesting genetic mutations that disrupt normal growth perception or signaling pathways.
Recommended Citation
Ritenhour, Liz; Horn, Gracey; Veit, Lawson; Juris, Grant; and Almajano, Rodrigo Suarez, "How does the concentration of Gibberellic Acid (GA3) impact the growth of different Setaria Viridis mutants?" (2026). 2026 Student Academic Showcase. 8.
https://digitalcommons.lindenwood.edu/src_2026/Posters/1/8
Included in
How does the concentration of Gibberellic Acid (GA3) impact the growth of different Setaria Viridis mutants?
We tested the relationship between gibberlin and plant growth through the use of gibberellic acid and different dwarf millet variants. Subjects were split into two groups: group one with no gibberellic acid application, and group two with periodic gibberellic application. Each group consisted of 17 pots. Each row held one mutant variant, while the bottom left pot was removed to store water. The objective was to have significant data by the end of the semester to prove the relevant relationship of gibberellin and plant growth.