ISHS Acta Horticulturae 415: VIII International Asparagus Symposium
EFFECTS OF PHYTOHORMONES ON CHEMICALLY INDUCED FLOWERING OF ASPARAGUS. |
| Authors: | T. Abe, S. Yoshida, T. Kameya |
| Keywords: | auxin, triazine, carbamate, thiocarbamate |
| Abstract:
Flower formation in one-month-old seedlings of Asparagus officinalis can be induced by soaking the seeds in solutions of triazines, carbamates or thiocarbamates. The most effective chemical was found in carbamates inducing flowers on the seedlings at 81% rate. We examined effects of phytohormones on this phenomenon. Cytokinins slightly promoted flowering at low concentrations. Both abscisic acid (ABA) and ethylene showed weak suppression of flowering rate, while auxins were much more inhibitory. Among the auxins 2,4-dichlorophenoxyacetic acid (2,4-D) and 2-indolylpropionic acid (IPA) strongly inhibited flowering at 1 mg/L while indole-3-acetic acid (IAA) required 50 mg/L for the same level of inhibition. | |
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