Plant growth regulating composition and methods for making and using same

1. A water-soluble plant growth regulating composition in granule form, comprising an active medium, and a carrier medium in an amount from 70 to 99 wt. % based on the total weight of the composition, wherein the active medium comprises:

(a) a gibberellin in an amount from 0.001 to 10 wt. % based on the total weight of the composition;

(b) a cytokinin in an amount from 0.001 to 10 wt. %; and

(c) an auxin 0.001 to 10 wt. %, based on the total weight of the granules.

2. The composition of claim 1 , having a solubility greater than 1 g/100 g water at 25° C.

3. The composition of claim 1 , further comprising a surfactant.

4. The composition of claim 3 , wherein the surfactant is selected from the group consisting of: alkylnaphthalene sulphonates, oxoalcohol PO-EO adducts, and salts and mixtures thereof.

5. The composition of claim 3 , wherein the surfactant is present in an amount from 1 to 20 weight percent.

6. The composition of claim 1 , further comprising one or more micronutrients.

7. The composition of claim 6 , wherein the one or more micronutrients comprise one or more chelating agents.

8. The composition of claim 7 , wherein the chelating agents are selected from the group consisting of EDTA and citrate salts.

9. The composition of claim 6 , wherein the one or more micronutrients comprise one or more nitrogen sources.

10. The composition of claim 1 , further comprising one or more amino acids.

11. The composition of claim 1 , wherein the gibberellin is selected from the group consisting of GA 3 , GA 4 , GA 5 , GA 7 and combinations thereof.

12. The composition of claim 1 , wherein the cytokinin is selected from the group consisting of kinetin, 6-benzylaminopurine (6-BAP), 1-(2-chloropyridin-4-yl)-3-phenylurea (CPPD), and thidizuron (TDZ).

13. The composition of claim 1 , wherein the auxin is selected from the group consisting of 3-indolebutyric acid, 3-indoleacetic acid, 1-naphthylacetic acid, 3-indolebutyric acid, and salts and esters thereof.

14. The composition of claim 1 , wherein the gibberellin comprises gibberellin GA4, the cytokinin comprises kinetin, and the auxin comprises indole-3-butyric acid.

15. The composition of claim 1 , wherein the gibberellin comprises a mixture of gibberellin GA 4 and gibberellin GA 7 .

16. The composition of claim 1 , wherein the active medium has an average particle size from 1 to 5 μm as determined by laser diffraction particle size analysis.

17. The composition of claim 1 , wherein the carrier medium comprises lactose monohydrate.

18. The composition of claim 1 , wherein the carrier medium is water soluble.

19. A process for preparing a liquid plant growth regulating composition, comprising dissolving the composition of claim 1 in water to form the liquid plant growth regulating composition.

20. The process of claim 19 , wherein water is provided in an amount sufficient to provide an auxin concentration from 0.3 to 10.5 wppm, a cytokinin concentration from 0.6 to 20.9 wppm and a gibberellin concentration from 0.2 to 7.0 wppm.

21. A process for regulating plant growth comprising:

(a) dissolving the composition of claim 1 in water to form a liquid plant growth regulating composition; and

(b) applying the liquid plant growth regulating composition to a plant or seed.

22. The process of claim 21 , wherein step (b) comprises applying the liquid plant growth regulating composition to a seed, the process further comprising planting the seed.

23. The process of claim 21 , wherein step (b) comprises applying the liquid plant growth regulating composition to a seed furrow during a planting operation.

24. The process of claim 21 , wherein step (b) comprises applying the liquid plant growth regulating composition to a plant.