Use of indole-3-succinic acid as auxin

• US 20030158043A1
• Filed: 12/20/2002
• Published: 08/21/2003
• Est. Priority Date: 12/21/2001
• Status: Active Grant

• Current Assignee: Charloc Hammer, Daniel Armstrong
• Original Assignee: Charloc Hammer, Daniel Armstrong
• Inventors: Hammer, Charloc, Armstrong, Daniel
• Granted Patent: US 6,753,297 B2
• Time in Patent Office: Days
• US Class Current: 504/284
• CPC Class Codes: A01N 43/38 condensed with carbocyclic rings

Abstract

Indole-3-succinic acid and its derivatives are used as auxins. They are administered to plants to promote root growth.

Claims

1. A method for promoting growth in plants comprising treating a plant with an effective amount of a compouind of Formula 1 to promote growth in the plant, wherein Formula 1 is:

2. The method of claim 1 wherein the compound of Formula 1 is used as an enantiomer or a racemate.

3. The method of claim 1 wherein the compound of Formula 1 is in the form of a salt.

4. The method of claim 1 wherein the halogen group consists of fluorine (F), chlorine (Cl) and bromine (Br).

5. The method of claim 1 wherein the alkyl group is C₁ to C₆, and the aryl group is a phenyl or a naphthyl group.

6. The method of claim 1 wherein the treating comprises hydroponically growing the plant and the concentration of the compound of Formula 1 in aqueous solution is about 10⁻

5 M to about 10<sup>−

9</sup> M.

7. The method of claim 1 wherein the treating comprises dipping the plant directly into an aqueous solution of the compound of Formula 1 at a concentration of 0.001 to 0.1% by mole.

8. The method of claim 1 wherein the treating comprises treating the soil in which the plant is grown with an aqueous solution having a concentration of the compound of Formula 1 at about one part per thousand to about one part per trillion.

9. A substantially pure enantiomer of indole-3-succinic acid or salt thereof.