Related Experiment Video
Updated: Jul 21, 2026

A Seed Coat Bedding Assay to Genetically Explore In Vitro How the Endosperm Controls Seed Germination in Arabidopsis thaliana
Published on: November 9, 2013
Concentrations of Abscisic Acid and Indole-3-Acetic Acid in Soybean Seeds during Development
M B Hein1, M L Brenner, W A Brun
1Department of Horticultural Science and Landscape Architecture, University of Minnesota, St. Paul, Minnesota 55108.
Abstract:
Concentrations of abscisic acid (ABA) and indole-3-acetic acid (IAA) in seed parts were determined during reproductive development of soybean plants (Glycine max [L.] Merr. cv ;Chippewa 64'). The concentration of ABA and IAA changed independently in individual seed parts with time. Measurement of the level of ABA and IAA in whole seeds masked the changes which occurred in individual seed tissues. The concentration of ABA was generally highest and that of IAA was generally lowest in the embryonic axis of soybean seeds. In the testa, the IAA concentration was generally highest while the ABA concentration was generally the lowest compared to other parts of the seed.
Related Concept Videos
Adaptations that Reduce Water Loss
Seed Structure and Early Development of the Sporophyte

