JPH05238901A - Freshness-keeping agent composition for cut flower - Google Patents

Abstract

PURPOSE:To provide the subject composition for a cut flower, containing L-alpha-(2- aminoethoxyvinyl)glycine (AVG) and 2-aminoisobutyric acid (AIB) as the active components. CONSTITUTION:By treating a cut flower with a mixture of AVG and AIB, a higher freshness-keeping effect than with each component alone can be obtained. As the mixture ratio of AVG to AIB, preferably 1 to 10 pts.wt. AIB is used based on 1 pt.wt. AVG. This composition can be used for any of pretreatment, post-treatment and spray treatment.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a freshness-retaining agent for cut flowers.

[0002]

2. Description of the Related Art As a cause of cut flower freshness reduction,
These include stem rot in live water, blockage of conduits, nutrient depletion, and increased endogenous ethylene. For rot of stems and blockage of conduits, bactericides such as 8-hydroxyquinoline, aluminum sulfate for precipitating water pollutants, and various surfactants for improving landing are used. Sugars such as sucrose are used for nutrient depletion. However, the effect is not clear due to variations. On the other hand, with respect to the increase in endogenous ethylene, STS (Ag (S
₂ O _{3) 2} ^3-) [Planta (Planta) 140 93-96] suppresses the action of ethylene, carnation, clear effect on cut flowers ethylene such perennial gypsophila is a main cause of wilting flowers Indicates.

Currently, producers use STS for many cut flowers. However, since STS contains silver, which is a heavy metal, as its active ingredient, there is concern about environmental pollution, and there is a demand for the practical application of a safe freshness-preserving agent that does not contain heavy metals, but it can replace STS. Freshness preservatives do not yet exist. L-α- (2-aminoethoxyvinyl) glycine (abbreviated as AVG), aminooxyacetic acid, 2-aminoisobutyric acid
(Abbreviated as AIB) is known to show the freshness-preserving effect of cut flowers by inhibiting the biosynthesis of ethylene, though [Journal of the American Society for Horticultural Science ( Jour
nal Of The American Society For Horticultural Scie
nce) 102 517 ~ 520, 1977, Horts Science
cience) 15 805-806, 1980, Scientia Horticulturae 44 127-134,
1990], it is expensive and less effective than STS, so it has not been put to practical use.

[0004]

An object of the present invention is to provide a freshness-retaining agent having an excellent effect on cut flowers.

[0005]

The present invention relates to a freshness-keeping agent for cut flowers, which contains AVG and AIB as active ingredients.
All of these active ingredients are known substances, such as AVG, AIB
Both are available as reagents. These active ingredients are used as an aqueous solution of various concentrations, 0.
It is also possible to use by adding alcohols such as 5 to 10% of methanol. The concentration is not particularly limited because the optimum value varies depending on the type of cut flowers of interest. AVG
Is preferably 0.001 to 1.0% by weight, AIB is preferably
It is used in the range of 0.01 to 1.0% by weight, and the mixing ratio of AVG and AIB is preferably 1 to 10 times as much as AVG 1 by weight.

Examples of the method of using the freshness-retaining agent of the present invention include pretreatment, posttreatment, and spraying on plants. As a method of pretreatment, the cut end of cut flowers into a chemical solution,
It is preferable to soak it for 1 to 24 hours. As a post-treatment method, cut flowers may be placed in a vase containing a chemical solution. As a spraying method, a chemical solution may be sprayed on the entire cut flowers by spraying or the like.

The freshness-retaining agent of the present invention is an additive (bactericidal agent,
It may be used by mixing it with a surfactant or the like) or other commercially available freshness-retaining agent, or an additive or other commercially available freshness-retaining agent may be used after using the product of the present invention. Flowers to which the freshness-retaining agent of the present invention can be applied, carnation, delphinium, sweet pea, gypsophila,
Cut flowers such as lilies, freesia, tulips, orchids,
Or pots and the like.

[0008]

【Example】

Freshness-preserving effect of carnation cut flowers Carnations (cultivar: Francisco) cultivated at a farm in Hadano City, Kanagawa Prefecture, are cut into 10 cm lengths.
In a tube bottle (φ3 x 12 cm) containing 50 ml of the drug solution shown in
We put one cut flower each and left it in a temperature-controlled room, and investigated the number of days until the ornamental value was lost as the number of days to hold.
Each test group had 4 repetitions. The results are shown in Table 1.

[0009]

[Table 1] Treatment days (days) Control group 3.3 100 ppm AVG 5.7 200 ppm AIB 4.2 100 ppm AVG + 200 ppm AIB 7.3 As is clear from Table 1, by mixing AVG and AIB and treating cut flowers, respectively. A higher freshness-keeping effect was obtained than when treated alone.

[0010]

According to the present invention, it is possible to provide a freshness-retaining agent for keeping the freshness of cut flowers in a good condition for a long period of time.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunitaka Tachibana 760 Shimooka-cho, Kohoku-ku, Yokohama-shi, Kanagawa Meiji Confectionery Co., Ltd.

Claims (1)

[Claims] 1. A freshness-retaining composition for cut flowers, which comprises L-α- (2-aminoethoxyvinyl) glycine and 2-aminoisobutyric acid as active ingredients.