JPH0657642B2 - How to save cut flowers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the cut end of cut flowers by (E) -1- (P-chlorophenyl) -4,4-dimethyl-2- (1,2,4-triazol-1-yl) -1. -A method for preserving cut flowers by immersing them in water containing penten-3-ol (hereinafter referred to as uniconazole).

In order to extend the lifespan of cut flowers after harvesting (flower stickiness) as much as possible, various methods such as 8-hydroxyquinoline,
Sucrose, STS (silver nitrate and sodium thiosulfate 1: 4
For example, a method of immersing a cut flower cut in water containing a mixture, etc. is used. However, none of these methods is always sufficient as a method for preserving cut flowers.

As a result of diligent study on a method of extending the life of a better cut flower, the present inventors have decided to dip the cut end of the cut flower in water containing uniconazole at any time from immediately after harvest to the end of the ornamentation for a certain period of time. The present invention has been completed by finding that the flower buds can be extended by the method.

The fact that the above-mentioned uniconazole can be used as an active ingredient of fungicides, herbicides, and plant growth regulators is disclosed in JP-A-55-124771 and JP-A-5-127471.
No. 6-25105, etc.

The water containing uniconazole used in the method of the present invention is usually prepared by mixing this compound with a solid carrier, a liquid carrier, a surfactant and other auxiliaries for formulation to prepare an emulsion, a wettable powder, a flowable formulation, an aqueous solution and the like. It is obtained by diluting the product with water. These formulations usually contain uniconazole in a weight ratio of 0.005 to 80%, preferably 0.01.
-60% content.

Examples of the solid carrier include kaolin clay, attapulgite clay, bentonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, walnut powder, urea, ammonium sulfate, fine powder or particles of synthetic hydrous silicon oxide, and the like. As the liquid carrier, aromatic hydrocarbons such as xylene and methylnaphthalene, alcohols such as isopropanol, ethylene glycol and cellosolve, acetone, cyclohexanone, ketones such as isophorone, soybean oil, vegetable oils such as cottonseed oil, dimethyl sulfoxide, acetonitrile, water and the like. Can be given.

As the surfactant used for emulsification, dispersion, etc.,
Anionic surfactants such as alkyl sulfate ester salts, alkyl (aryl) sulfonates, dialkyl sulfosuccinates, polyoxyethylene alkyl aryl ether phosphate salts, polyoxyethylene alkyl ethers, polyoxyethylene alkyl aryl ethers, Examples thereof include nonionic surfactants such as polyoxyethylene polyoxypropylene block copolymer, sorbitan fatty acid ester, and polyoxyethylene sorbitan fatty acid ester. Examples of auxiliaries for the formulation include lignin sulfonate, alginate, polyvinyl alcohol, gum arabic, CMC (carboxymethyl cellulose), PAP.
(Acid isopropyl phosphate) and the like.

Next, formulation examples will be described. In addition, a part represents a weight part.

Formulation Example 1 0.1 part of uniconazole, 1 part of polyoxyethylene styrylphenyl ether and 98.9 parts of water are mixed to obtain an aqueous solution.

Formulation Example 2 10 parts of uniconazole, 80 parts of cyclohexanone and 10 parts of an emulsifier (polyoxyethylene alkylaryl ether) are mixed to obtain an emulsion.

Formulation Example 3 25 parts of uniconazole, 3 parts of polyoxyethylene sorbitan monooleate, 3 parts of CMC and 69 parts of water are mixed and wet pulverized until the particle size of the active ingredient becomes 5 microns or less to obtain a flowable formulation.

Formulation Example 4 30 parts of uniconazole, 45 parts of diatomaceous earth, 20 parts of white carbon, 3 parts of a wetting agent (sodium lauryl sulfate) and 2 parts of a dispersant (calcium ligninsulfonate) are well pulverized and mixed to obtain a wettable powder.

The cut end of the cut flower is immersed in the water containing the uniconazole thus obtained at any time from immediately after harvest to the end of the ornamental use. Immersion time varies depending on the concentration of uniconazole in water, environmental conditions during immersion (temperature, degree of sunshine, humidity, etc.), type of cut flowers to be immersed, quantity, type of formulation, etc. It is an arbitrary time up to a relatively long time, such as the time during which it is being used. The concentration of uniconazole in water depends on the above immersion time, environmental conditions during immersion,
Depending on the type of cut flowers, quantity, type of formulation, etc.,
Usually 0.1 to 5000 ppm, preferably 1-250
It is 0 ppm. Furthermore, in water containing uniconazole,
In addition to the above 8-hydroxyquinoline, sucrose, STS,
Sodium hypochlorite, copper sulfate, silver nitrate, zinc acetate, aluminum nitrate, SADH (butanedioic acid mono- (2,2-dimethylhydrozide)), abscisic acid, ethylene oxide and the like may be added and used, Further, an insecticide, a bactericide, a plant growth regulator, a fertilizer or the like may be added and immersed.

Next, test examples will be described.

The cut flowers used for the test are flowers that have grown in the greenhouse, and when the buds have grown sufficiently, cut out the flowers that are as mature as possible.
Iris, gerbera and tulip cut in water with scissors at right angles to the stem, water was tap water, and uniconazole was used as an aqueous solution of Formulation Example 1.

Test Example 1 Five cut flowers under test were immersed in an Erlenmeyer flask containing 500 ml of water containing a predetermined concentration of uniconazole. Using three Erlenmeyer flasks per treatment section, three kinds of test cut flowers were immersed in each. Immerse for a predetermined time and cut the test flower in water 500 ml
It was placed in a greenhouse at 20 to 27 ° C., and water corresponding to the water content evaporated at a certain time was replenished every day, and changes in the appearance of cut flowers were observed. The number of days until the petals and / or leaves began to atrophy and the entire flower became intolerable to ornamentation, the life of cut flowers was determined. For comparison, changes in cut flowers when the test cut flowers were immersed in water and in water containing STS were observed, and the life of the cut flowers was determined in the same manner as above.
The average number of days for each treatment area is calculated and shown in Table 1.

Test Example 5 Five test cut flowers were immersed in an Erlenmeyer flask containing 500 ml of water containing a predetermined concentration of uniconazole. Using three Erlenmeyer flasks per treatment section, three kinds of test cut flowers were immersed in each. It was placed in a greenhouse at 20 to 27 ° C., and water corresponding to the water evaporated at a certain time was replenished every day, and changes in the appearance of cut flowers were observed. Hereinafter, the life of cut flowers was determined in the same manner as in Test Example 1. For comparison, changes in cut flowers when the cut flowers were immersed in water and when they were immersed in water containing 8-hydroxyquinoline were observed, and the life of the cut flowers was determined in the same manner as in Test Example 1. The average number of days for each treatment area is calculated and shown in Table 2.

Claims (1)

[Claims] 1. The cut end of cut flowers is (E) -1- (P-chlorophenyl) -4,4-dimethyl-2- (1,2,4-triazol-1-yl) -1-penten-3-ol. A method for preserving cut flowers, which comprises immersing in cut water.