Concentrations of Abscisic Acid and Indole-3-Acetic Acid in Soybean Seeds During Development

Overview

Journal Plant Physiol

Specialty Physiology

Date 1984 Dec 1

PMID 16663978

Citations 15

Authors

M B Hein

M L Brenner

W A Brun

Affiliations

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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.

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