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Concentrations of Abscisic Acid and Indole-3-Acetic Acid in Soybean Seeds during Development
Mich B. Hein, Mark L. Brenner and William A. Brun
Vol. 76, No. 4 (Dec., 1984), pp. 951-954
Published by: American Society of Plant Biologists (ASPB)
Stable URL: http://www.jstor.org/stable/4269035
Page Count: 4
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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.
Plant Physiology © 1984 American Society of Plant Biologists (ASPB)