Enhancement of Potato Tuber Sprouting Inhibitors Using Various Combinations of Agents

• US 20130183419A1
• Filed: 09/02/2011
• Published: 07/18/2013
• Est. Priority Date: 09/02/2010
• Status: Active Grant

• Current Assignee: Washington State University
• Original Assignee: Washington State University
• Inventors: Knowles, Norman R., Knowles, Lisa
• Granted Patent: US 8,999,419 B2
• Time in Patent Office: Days
• US Class Current: 426/321
• CPC Class Codes: A01N 2300/00 Combinations or mixtures of active ingredients covered by classes A01N27/00 - A01N65/48 with other active or formulation relevant ingredients, e.g. specific carrier materials or surfactants, covered by classes A01N25/00 - A01N65/48
• CPC Class Codes: A01N 27/00 Biocides, pest repellants or attractants, or plant growth regulators containing hydrocarbons
• CPC Class Codes: A01N 35/02 containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals
• CPC Class Codes: A01N 47/20 N-Aryl derivatives thereof
• CPC Class Codes: A01N 65/22 Lamiaceae or Labiatae [Mint family], e.g. thyme, rosemary, skullcap, selfheal, lavender, perilla, pennyroyal, peppermint or spearmint
• CPC Class Codes: A01N 65/28 Myrtaceae [Myrtle family], e.g. teatree or clove
• CPC Class Codes: A23B 7/154 Organic compounds; Microorganisms; Enzymes

Abstract

Compositions and methods for inhibiting the sprouting of potato tubers are provided. The compositions comprise combinations of i) α,β-unsaturated aliphatic aldehydes, and ketones,C3 to. C14 aliphatic aldehydes and ketones, and/or C3 to C7 saturated or unsaturated primary and secondary aliphatic alcohols; and 2) conventional sprout Inhibitors, The effect of the combinations is additive and/or synergistic, and less of the conventional inhibitor is required to achieve the same or improved levels of sprout inhibition.

Claims

1-12. -12. (canceled)

13. A method of inhibiting sprouting in potato tubers during storage, comprising

simultaneously or substantially simultaneously applying to the potato tubers a composition comprising

i) one or more sprout inhibiting agents selected from the group consisting of

α

,β

-unsaturated aliphatic aldehydes;

α

,β

-unsaturated aliphatic ketones;

C3 to C14 saturated aliphatic aldehydes;

C3 to C14 saturated aliphatic ketones;

C3 to C7 saturated or unsaturated aliphatic primary alcohols;

C3 to C7 saturated or unsaturated aliphatic secondary alcohols; and

ii) one or more sprout inhibitors selected from the group consisting of chlorpropham (CIPC), dimethylnaphthalene (DMN), diisopropylnaphthalene (DIPN), carvone, and an essential oil.

14. The method of claim 13, wherein said one or more sprout inhibitors is CIPC and said CIPC is applied at a rate of 1-14 mg/kg of potato tubers.

15. The method of claim 13, wherein said method is carried out when sprouts begin to appear on said potato tubers.

16. The method of claim 13, wherein said C3 to C14 saturated aliphatic aldehydes, said C3 to C14 saturated aliphatic ketones, said C3 to C7 saturated or unsaturated aliphatic primary alcohols, and said C3 to C7 saturated or unsaturated aliphatic secondary alcohols are applied indirectly as a result of the application of a precursor compound.

17. The method of claim 1325, wherein said essential oil is clove oil or mint oil.

18. The method of claim 13, wherein said one or more sprout inhibiting agents is trans-2-nonenal and said one or more sprout inhibitors is CIPC;

or said one or more sprout inhibiting agents is 3-decen-2-one and said one or more sprout inhibitors is DMN;

or said one or more sprout inhibiting agents 2-decanone and said one or more sprout inhibitors is DIPN;

or said one or more sprout inhibiting agents is 3-decen-2-one and said one or more sprout inhibitors is clove oil;

said one or more sprout inhibiting agents is 3-nonen-2-one and said one or more sprout inhibitors is CIPC.

19. A method of inhibiting sprouting in potato tubers during storage, comprising

applying chlorpropham (CIPC) to the potato tubers after wound healing and prior to sprouting at a rate of 1-14 mg/kg of potato tubers, and, when sprouts begin to appear,

applying to the potato tubers one or more sprout inhibiting agents selected from the group consisting of

α

,β

-unsaturated aliphatic aldehydes;

α

,β

-unsaturated aliphatic ketones;

C3 to C14 saturated aliphatic aldehydes;

C3 to C 14 saturated aliphatic ketones;

C3 to C7 saturated or unsaturated aliphatic primary alcohols; and

C3 to C7 saturated or unsaturated aliphatic secondary alcohols.

20. The method of claim 19, wherein the step of applying CIPC is carried out 2-8 weeks after transfer of the potato tubers to storage.

21. The method of claim 19, wherein the step of applying one or more sprout inhibiting agents is carried out 30-45 days after said step of applying CIPC.

22. The method of claim 19, further comprising the step of repeating the step of applying one or more sprout inhibiting agents multiple times during storage of the potato tubers.

23. The method of claim 22, wherein the step of repeating is performed at time intervals of from 4 to 12 weeks.

24. The method of claim 19, further comprising a step of applying maleic hydrazide (MH) to the potato tubers prior to harvest.

25. A composition for inhibiting sprouting of potato tubers during storage, comprising

i) one or more sprout inhibiting agents selected from the group consisting of

α

,β

-unsaturated aliphatic aldehydes;

α

,β

-unsaturated aliphatic ketones;

C3 to C14 saturated aliphatic aldehydes;

C3 to C14 saturated aliphatic ketones;

C3 to C7 saturated or unsaturated aliphatic primary alcohols; and

C3 to C7 saturated or unsaturated aliphatic secondary alcohols; and

ii) CIPC.

26. The composition of claim 25, wherein said composition is formulated such that when applied, CIPC is applied at a rate of 1-14 mg/kg of potato tubers.

27. The composition of claim 25, further comprising one or more of dimethylnaphthalene (DMN), diisopropylnaphthalene (DIPN), carvone, and an essential oil.

28. The method composition of claim 27, wherein said essential oil is clove oil or mint oil.

29. The composition of claim 25, wherein said composition comprises:

trans-2-nonenal plus CIPC;

3-decen-2-one plus CIPC, or 3-nonen-2-one plus CIPC.