JPH0733603A - Cut flower vitality retainer and method for retaining cut flower vitality - Google Patents

Abstract

PURPOSE:To provide a cut flower vitality retainer and provide a method for retaining cut flower vitality using the same. CONSTITUTION:The vitality retainer is comprised of an aqueous solution of sodium acetate, potassium acetate or ammonium acetate. With this vitality retainer, the cut surface of a cut flower is treated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vitality-retaining agent that suppresses the wilting of cut flowers and maintains their vitality or freshness for a long time, and a method for retaining the vitality of cut flowers using such a vitality-retaining agent.

[0002]

2. Description of the Related Art For example, cut flowers such as carnations, moss grasses and lilies are apt to wilt with a small amount of ethylene gas,
It is already known to prevent the action of ethylene gas by immersing cut flowers in an aqueous solution of silver thiosulfate, so-called STS solution for a certain period of time. Currently, such products are widely marketed in the Netherlands and Japan, and carnations and other cut flowers Is used as a so-called pre-treatment agent before shipment [H. Veen, A
cta Horticulturae 91, 99-108 (1979)].

Also, unlike STS preparations, which are silver compounds,
As an anti-ethylene agent containing no silver, α-amino-
Isobutyric acid, aminooxyacetic acid, etc. are known, but they have not yet been put into practical use [Onozaki, Yamaguchi: Ministry of Agriculture, Forestry and Fisheries, Annual Report of Vegetable Tea Laboratory (1991), Funakoshi: Agriculture and Horticulture Vo.
l. 67 No. 1 (1992)].

[0004]

The STS formulation is effective as a vital agent for cut flowers, but since the heavy metal of silver is the main ingredient, environmental problems have recently occurred in the Netherlands regarding waste liquid treatment after use, and in the near future. It is said that silver agents will be banned due to environmental pollution, and this is becoming a problem in Japan as well.

Therefore, there is a demand for an anti-ethylene agent containing no silver, but α-aminoisobutyric acid, aminooxyacetic acid, etc., which are said to have the same effect of retaining vitality as compared with STS preparations, are too much compared with STS preparations. Most of them are still S because they are expensive and have not been put to practical use.
TS formulations have been used.

The present invention does not contain (i) poisonous deleterious substances or heavy metals like STS preparations, (ii) can be easily obtained industrially, and (iii) retains vitality of cut flowers. It is an object of the present invention to provide a vitality-retaining agent which has excellent ability to retain freshness and can be used as a pretreatment agent for cut flowers before shipment and a method for retaining vitality of cut flowers.

[0007]

Means for Solving the Problems In order to solve the above problems, the present inventors have studied various compounds,
It was found that the aqueous solution of alkali metal salt of acetic acid and the aqueous solution of ammonium salt of acetic acid are remarkably excellent in vitality-preserving ability and freshness-retaining ability during pretreatment before cut flower shipment. Therefore, the present invention is characterized by being configured as follows.

(1) First invention A vitality-preserving agent for cut flowers, which comprises an aqueous solution of either an alkali metal acetate or an ammonium acetate. Here, the alkali metal salt means a sodium salt, a potassium salt or the like.

The cut flower vitality-preserving agent according to the first aspect of the present invention may further contain other components in addition to these. For example, a preservative such as Slaoff 620 manufactured by Takeda Pharmaceutical Co., Ltd., glucose or sucrose. It is also possible to contain sugars such as.

(2) Second invention A method of maintaining the vitality of a cut flower, which comprises treating the cut portion of the cut flower with an aqueous solution of either an alkali metal acetate or an ammonium acetate.

In the treatment of the second invention, for example, cut flowers cut to about 45 to 50 cm below the flowers are inserted into the above aqueous solution,
It is performed by leaving it for a suitable time.

The concentration of the effective compound when the above aqueous solution is used varies depending on the length of time for immersing cut flowers and is not uniform depending on the kind of the compound, but it is 5 to 50 millimol, more preferably 10 to 30 millimol. Good. However, it is not limited to the above concentration range because there are room temperature, kinds of cut flowers, dryness of cut flowers, and other conditions.

[0013]

Since the vitality-retaining agent is provided in the form of an aqueous solution, the solution preparation can be easily produced by diluting it with water and the concentration thereof can be adjusted. The life-prolonging effect of cut flowers can be markedly increased by immersing cut flowers such as carnations in the aqueous solution of the compound for several hours to more than ten hours.

[0014]

【Example】

Example 1 An aqueous solution (chemical solution) in which 2.04 g of sodium acetate trihydrate was dissolved in 500 ml of tap water was added to a carnation 45 cm below the flower of carnation.
10 pieces of cut stems were inserted into each of them, and after soaking at room temperature of about 20 ° C. for 5 hours, cut flowers were treated with 500 ml of tap water as a bactericide, and Takeda Pharmaceutical Co., Ltd. preservative Slaoff 620 0.1-0.1 was used.
Transfer to the one to which 0.3% is added, and leave in a constant temperature room at 27 to 31 ° C. Separately, 10 cut flowers that are not soaked in the chemical solution are inserted into 500 ml of tap water to which the above-mentioned preservative is added, and left in the same temperature-controlled room.

The flowers which are not soaked in the chemical solution are discolored and wilted approximately 7 days before, but the flowers which are soaked in the chemical solution are still beautiful after 11 days.

Example 2 Carnation cut flowers were immersed in an aqueous solution prepared by dissolving 1.5 g of potassium acetate in 500 ml of tap water and treated in the same manner as in Example 1.

Example 3 Carnation cut flowers were immersed in an aqueous solution prepared by dissolving 1.2 g of ammonium acetate in 500 ml of tap water and treated in the same manner as in Example 1.

According to the treatments of the above-mentioned Examples 2 to 3, the same excellent vitality retaining effect as in Example 1 was obtained.

[0019]

EFFECTS OF THE INVENTION According to the present invention, since it is effective in maintaining the vitality of cut flowers and does not contain heavy metals or poisonous deleterious substances, it is possible to produce beautiful and storable cut flowers without causing environmental problems.

Claims (4)

[Claims] 1. A vitality-retaining agent for cut flowers, which comprises an aqueous solution of either an alkali metal acetate or an ammonium acetate. 2. The vitality-preserving agent for cut flowers according to claim 1, which contains a preservative. 3. The vitality-retaining agent for cut flowers according to claim 1, which contains a saccharide. 4. A method for maintaining vitality of a cut flower, which comprises treating the cut portion of the cut flower with an aqueous solution of one of an alkali metal acetate and an ammonium acetate.