초록 ▼

Methods for reducing leaf senescence in plants or plant portions by treating them with methyl dihydrojasmonate are disclosed. The methyl dihydrojasmonate may be in the form of an aqueous foliar spray, which may also include additives such as wetting agents, adjuvants, emulsifiers, dispersants, sprea

Methods for reducing leaf senescence in plants or plant portions by treating them with methyl dihydrojasmonate are disclosed. The methyl dihydrojasmonate may be in the form of an aqueous foliar spray, which may also include additives such as wetting agents, adjuvants, emulsifiers, dispersants, spreaders, surfactants, anchorage, disintegrants, and plant nutrients.

대표청구항 ▼

1. A method of reducing leaf senescence, comprising: applying a liquid medium including methyl dihydrojasmonate to an exposed portion of an intact, established plant at least once until the exposed portion to which the liquid medium is applied is covered by or exposed to the liquid medium, the methy

1. A method of reducing leaf senescence, comprising: applying a liquid medium including methyl dihydrojasmonate to an exposed portion of an intact, established plant at least once until the exposed portion to which the liquid medium is applied is covered by or exposed to the liquid medium, the methyl dihydrojasmonate having a concentration of at least 0.5 mM in the liquid medium; andevaluating the plant for evidence indicative of leaf senescence, including one or both of chlorosis or necrosis. 2. The method of claim 1, wherein the methyl dihydrojasmonate has a concentration in the liquid medium of 0.5 to 6.0 mM. 3. The method of claim 2, wherein the methyl dihydrojasmonate has a concentration in the liquid medium of at least 1.0 mM. 4. The method of claim 2, wherein the liquid medium further includes a surfactant and an oil. 5. The method of claim 2, wherein the liquid medium further includes an alcohol or a surfactant. 6. The method of claim 1, wherein the applying comprises applying the liquid medium to the foliage of the plant once with the methyl dihydrojasmonate in a concentration of at least 1.0 mM in the liquid medium. 7. The method of claim 1, wherein the plant is a corn, spinach, or rose plant. 8. A method of reducing leaf senescence in roses, comprising: applying a liquid medium including methyl dihydrojasmonate to an exposed portion of an intact, established rose plant at least once until the foliage to which the liquid medium is applied is covered by or exposed to the liquid medium, the methyl dihydrojasmonate having a concentration of 0.5 mM to 6.0 mM in the liquid medium; andevaluating the rose plant for evidence indicative of leaf senescence, including one or both of chlorosis or necrosis. 9. The method of claim 8, wherein the liquid medium further includes a surfactant. 10. The method of claim 9, wherein the surfactant is selected from the group consisting of TRITON® X-100, TRITON® X-114, NP-40, SILWET, and sodium dodecyl sulfate. 11. The method of claim 8, wherein the liquid medium further includes an alcohol. 12. The method of claim 8, wherein the liquid medium further includes an oil. 13. The method of claim 8, wherein the liquid medium further comprises a fixative selected from the group consisting of canola oil, castor oil, benzoyl benzoate, benzyl salicylate, synthetic musk, sandalwood, carnauba wax, carob gum, dextrin, dextrose, gellan gum, guar gum, paraffin wax, sorbitol, xanthan gum, polyvinylpyrrolidone, and glycerin. 14. The method of claim 8, wherein the liquid medium further comprises an absorptive additive selected from the group consisting of silica gel; precipitated crystalline-free silica gel; amorphous, fumed, crystalline-free silica; amorphous, precipitated gel silica; silica hydrate; vitreous silica; silicic acid; and silicon dioxide. 15. The method of claim 8, wherein the liquid medium further comprises a surfactant and an oil. 16. The method of claim 8, wherein the liquid medium further comprises one or more plant nutrients. 17. The method of claim 8, wherein the liquid medium comprises one or more of ingredients selected from the group consisting of lecithin, saponin, and cocodiethanolamide. 18. A method of reducing leaf senescence, comprising: applying a liquid medium including methyl dihydrojasmonate to an exposed portion of an intact, established plant at least once until the exposed portion to which the liquid medium is applied is covered by or exposed to the liquid medium, the methyl dihydrojasmonate having a concentration of about 0.5 mM to 6.0 mM in the liquid medium; andevaluating the plant for evidence indicative of leaf senescence, including one or both of chlorosis or necrosis. 19. A method of producing a plant or plant portion with reduced leaf senescence, comprising: applying a liquid medium including methyl dihydrojasmonate to an exposed portion of an intact, established plant at least once until the exposed portion to which the liquid medium is applied is covered by or exposed to the liquid medium, the methyl dihydrojasmonate having a concentration of about 0.5 mM to 10.0 mM in the liquid medium;evaluating the plant for evidence indicative of leaf senescence; andharvesting the plant, or a portion of the plant, at a defined time after said applying.