Stability of 4,4,4-Trifluoro-3-(indole-3-)butyric Acid Dissolved in Water on Growth of Rice Roots

Abstract:

The stability of 4,4,4-trifluoro-3-(indole-3-) butyric acid (TFIBA) were examined. Elongation of rice seminal root was promoted approximately 80% by continuous supply of 10-5 molL-1 TFIBA. Such promotion effect on root elongation is not found in IAA or IBA. The promotive effect of TFIBA on root elongation was not reduced by either direct heating in a microwave oven or autoclaving at 121°C for 15 min and root elongation was promoted by 70 - 80% at the concentration of 10-5 mol L-1. The effect of TFIBA was not lost by heat of microwave oven or autoclave. Although the effect of TFIBA dissolved in water was gradually lost at 30°C in the light, it was maintained at 4°C in the light and at 30°C in the dark. Consequently, aqueous solution of TFIBA can be stored at room temperature for at least 1 month when it is kept in the dark.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 1460-1463
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.1460
• Online since: July 2012
• Authors: Xiu Ping Li, Yan Lai Zhang, Sasakawa Hideo
• Keywords: Rice, Root Elongation, Stability, Trifluoro-Indole-Butyric Acid

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