CN1254176C - Statice cutting flower pretreating liquid and its using method - Google Patents

Abstract

The invention provides a pre-treatment solution for cut flowers of Limonium Limonium, which is characterized in that the pre-treatment solution is dissolved in proportion by sodium dichloroisocyanurate, citric acid, gibberellin, sodium thiosulfate, silver nitrate and triton Made from water. Treating Limonium Limonium with the pretreatment solution of the present invention can promote full opening of flowers and keep stems and leaves bright green.

Description

Limonium cut flower pretreatment solution and method of use thereof

technical field

The invention relates to the field of fresh-keeping of cut flowers, in particular to the field of post-harvest fresh-keeping of cut flowers of Limonium limonensis.

Background technique

The flower industry is one of the most dynamic industries in agriculture in the world today. At present, the global flower consumption is 50 billion US dollars, of which 40 billion US dollars are cut flowers. China has become the country with the largest flower planting area in the world. In 2003, the flower planting area reached 430,000 hm ² , of which the cut flower planting area reached 24,000 hm ² , with an annual output of 6.7 billion cut flowers.

my country's cut flower production area accounts for 30% of the world's total area, but the trade volume only accounts for 1.3% of the world's total trade volume. In addition to production reasons, another main reason is that post-harvest processing technology is backward, which largely limits The export of China's cut flowers has been blocked, which has brought huge economic losses to cut flower producers and operators.

Limonium sinuatum (Limonium sinuatum), commonly known as forget-me-not, is a perennial herb of the genus Limonium sinuatum. Because of its small flowers, dry film quality, elegant color, and long viewing period, it is an important flower matching material just like the baby's breath. Because it is also known as "forget-me-not" and "never withered flowers", it is also auspicious, friendly, Unforgettable symbol.

Because of its lighter weight and difficult withering of flowers, its circulation and fresh-keeping technology is often not valued by people. The loss of Limonium Limonium in circulation is quite serious, mainly manifested in the yellowing and wilting of leaf-like wings and stems and the failure or wilting of membranous sepals; the color of flowers and flower stems loses luster, and gradually becomes a dry flower state. Botrytis cinerea that occurs during cultivation is very easy to spread during post-harvest distribution, causing browning of inflorescences and flower stems, or even necrosis, and loss of commodity value.

In recent years, there are few domestic reports on the research on the preservation of cut flowers of Limonium limonensis. Studies have shown that the pretreatment solution can effectively prevent the senescence and yellowing of the stems and wings of Limonium hemorrhoids. At the same time, the combination of low temperature and pretreatment solution can promote the full opening of the sepals of unopened florets in the inflorescence during vase insertion (Gao Junping, 1997, Research on the vacuum precooling and comprehensive preservation technology of cut flowers of Limonium Limonium. Acta Horticultural Science, 24(4): 405～ 406). This study is based on more than ten years of research on the flowering and senescence mechanism of cut flowers of Limonium, and after mastering the characteristics of flowering and aging of cut flowers of Limonium, the main components of the preservative are determined. The optimal combination obtained from the cross-test.

Contents of the invention

Aiming at the above-mentioned problems in post-harvest preservation of Limonium limonensis, the present invention provides a pretreatment solution that can promote full blooming of flowers and keep stems and leaves bright green on the basis of fully studying the causes of circulation loss of cut limonium limonium flowers.

The invention provides a pre-treatment solution for cut flowers of Limonium Limonium, which is characterized in that the pre-treatment solution is dissolved in proportion by sodium dichloroisocyanurate, citric acid, gibberellin, sodium thiosulfate, silver nitrate and triton Made from water.

The dosage of each component in the described pretreatment liquid is as follows: the following component concentrations in weight percent are: sodium dichloroisocyanurate 0.005%-0.015%, citric acid 0.6%-1.8%, gibberellin 0.01%- 0.03%, sodium thiosulfate 0.36%-1.08%, silver nitrate 0.04%-0.12%; by volume percentage, the concentration of triton is 0.1%-0.3%. Specifically, the dosage of each component in the described pretreatment solution is as follows: the following component concentrations in weight percent are: sodium dichloroisocyanurate 0.01%, citric acid 1.2%, gibberellin 0.02%, thio Sodium sulfate 0.72%, silver nitrate 0.08%; the concentration of triton by volume percentage is 0.2%.

The present invention also provides a preparation method of the above-mentioned cut flower pretreatment liquid, which is characterized in that it is prepared according to the following steps:

(1) Dissolve citric acid completely in 500 milliliters of water, then add sodium dichloroisocyanurate, and stir to make it fully dissolve, this is solution 1;

(2) Add gibberellin to 50 milliliters of absolute ethanol, and stir to make it fully dissolve, this is solution 2;

(3) sodium thiosulfate and silver nitrate were dissolved in 50 milliliters of distilled water respectively, then the silver nitrate solution was slowly poured into sodium thiosulfate while stirring, so that these two solutions were fully miscible, and this was solution 3;

(4) Pour solutions 2 and 3 into solution 1 in turn, and add the latter solution after the previous solution and solution 1 are fully mixed;

(5) Finally, add Triton and stir to make it fully mixed.

The present invention also provides a method for using the above cut flower pretreatment liquid, which is characterized in that the cut flowers are treated after adding sucrose to the pretreatment liquid before use.

Among the ingredients of the above formula, sucrose is the nutrient source required for flowering of cut flowers, which can promote the elongation of petals, improve the water balance and osmotic potential of flowers, and keep the flowers bright. However, the concentration of sucrose needs to be determined according to different types of cut flowers. If the dosage is inappropriate, sugar damage may easily occur, causing flowers to fade and leaves to burn. Sodium dichloroisocyanurate has the functions of sterilizing, disinfecting and purifying water. Gibberellin is a plant growth regulator, mainly used to promote the growth and development of crops. Silver thiosulfate (the reaction product of sodium thiosulfate and silver nitrate) is an inhibitor of ethylene action, and it is also a fungicide. Triton (X-100) is a surfactant that promotes water absorption by flowers. Citric acid lowers pH, regulates the physiological metabolism of cut flowers, and fully dissolves other ingredients.

The pretreatment solution of the present invention is formulated according to the flowering and senescence characteristics of Limonium Limonium, using ethylene inhibitors, fungicides, plant growth regulators, etc. as basic raw materials, and is formulated with a scientific method. The pH in the body, the effect of antagonizing aging hormones, sterilizing or antibacterial, delaying the fading of flowers and leaves, supplementing sugar sources, improving water balance, etc., have shown through a large number of tests that after being treated with the pretreatment solution of the present invention, the full blooming of flowers is promoted and the delay of floret and yellow flowers is delayed. Wilting and keeping the flowers and branches bright green have significant effects.

The nouns that appear in the description of the present invention are explained as follows:

Cut flowers: In a broad sense, it is a general term for branches, leaves, flowers and fruits cut from living plants for flower arrangement and floral design. In a narrow sense, it refers to isolated flower branches that are cut from the blooming of flowers to a certain stage and have a certain viewing period. In the present invention, if there is no special mention, cut flowers are all taken in a broad sense.

Post-harvest circulation of cut flowers: the various circulation links from harvest to consumer vases, generally including grading, bandaging, pretreatment, packaging, storage and transportation, sales and other links.

Cut flower preservatives are chemical agents used to regulate the physiological and biochemical metabolism of cut flowers, artificially regulate the flowering and aging process of cut flowers, reduce circulation loss, improve circulation quality or ornamental quality, etc. Preservatives can be divided into pretreatment liquids, flower urging liquids and bottle insertion liquids according to their uses.

Pretreatment solution, also known as pulse solution, is generally processed for the first time within 24 hours after the cut flowers are harvested, that is, before the grower sells the cut flowers after harvest, or the collector collects the goods from the grower and transports them Previously, combined with rehydration for short-term treatment, the effect can continue until the consumer inserts the cut vase into the water. The main purpose is to reduce the loss of various circulation links such as storage and transportation, improve the circulation quality, and prolong the life of the vase. The pretreatment solution is developed according to the characteristics of different cut flowers, and they are generally dedicated and cannot be mixed.

Vase cutting liquid is a preservative for improving the quality of cut flower vases and prolonging the life of vases. Bottle cutting solution is often used in ①retail stores before the cut flowers are sold, or ②consumers add it to the flower arrangement water and use it continuously until the cut flowers lose their ornamental value. Vase cutting solution is generally used by florists or consumers, and these flower shops or consumers have a small amount of flowers in vases and various types, so vase cutting solution is developed for the common characteristics of cut flowers, so it is often universal.

Detailed ways

Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the protection scope of the present invention.

Example 1:

The formula and dosage of the pretreatment solution with a volume of 1 liter: 0.1 g of sodium dichloroisocyanurate, 12 g of citric acid, 0.2 g of gibberellin, 7.2 g of sodium thiosulfate, 0.8 g of silver nitrate, and 2 ml of triton. And prepare as follows:

(1) Dissolve citric acid completely in 500 milliliters of water, then add sodium dichloroisocyanurate, and stir to make it fully dissolve, this is solution 1;

(2) Add gibberellin to 50 milliliters of absolute ethanol, and stir to make it fully dissolve, this is solution 2;

(3) sodium thiosulfate and silver nitrate were dissolved in 50 milliliters of distilled water respectively, then the silver nitrate solution was slowly poured into sodium thiosulfate while stirring, so that these two solutions were fully miscible, and this was solution 3;

(4) Pour solutions 2 and 3 into solution 1 in turn, and add the latter solution after the previous solution and solution 1 are fully mixed;

(5) Finally, add Triton and stir to make it fully mixed.

When in use, add sucrose to the pretreatment solution to treat Limonium Limonium.

After the yellow limonium is harvested, it is cut into oblique cuts in the water, and the stems are kept at a length of 50 cm. They are divided into 2 groups. One group is the current processing method, that is, sorting and grading at room temperature for 2 hours after harvesting, bandaging at room temperature for 1 hour, and pre-cooling for 8 hours. ℃ for 12 hours, packed for 2 hours, transported for 4 hours, and then observed in bottles. The other group absorbs the pretreatment solution while precooling, and the pretreatment solution must be absorbed within 12 hours after the cut flowers are harvested, and other steps are exactly the same as those of the control group.

After being treated with the pretreatment solution of the present invention, the yellowing and wilting of leaf-like wings and stems of cut flowers of Limonium hemorrhoids and the phenomenon that membranous sepals cannot fully unfold or wilt are obviously improved; the flower color and flower stem color maintain the original luster, and the antibacterial and disease-resistant The ability was significantly improved, browning of inflorescences and flower stems no longer occurred, and the viewing time was 20 days longer than that of the control group.

Example 2:

The formula and dosage of the pretreatment solution with a volume of 1 liter: 0.05 g of sodium dichloroisocyanurate, 6 g of citric acid, 0.1 g of gibberellin, 3.6 g of sodium thiosulfate, 0.4 g of silver nitrate, and 1 ml of triton. When in use, add sucrose to the pretreatment solution to treat Limonium Limonium.

Limonium Limonium is cut into oblique cuts in water after harvesting, and the stems are kept at a length of 50 cm. They are divided into 2 groups. One group is the same as in Example 1 for the current processing method.

After being treated with the pretreatment solution of the present invention, the ornamental time is 11 days longer than that of the control group.

Example 3:

The formula and dosage of the pretreatment solution with a volume of 1 liter: 0.15 g of sodium dichloroisocyanurate, 18 g of citric acid, 0.3 g of gibberellin, 10.8 g of sodium thiosulfate, 1.2 g of silver nitrate, and 3 ml of triton. When in use, add sucrose to the pretreatment solution to treat Limonium Limonium.

After harvesting, the light pink Limonium Limonium was cut into oblique cuts in water, and the stalks were kept at a length of 50 cm. They were divided into 2 groups. One group was treated according to the current current treatment method, and the treatment method was the same as in Example 1.

After being treated with the pretreatment solution of the present invention, the water absorption of the cut flowers of Limonium hemorrhoids is significantly improved, the ability to resist ethylene damage is significantly improved, and the ornamental time is 10 days longer than that of the control group.

Claims (4)

1, a kind of Limonium cut flower pretreatment liquid, its contained composition and proportioning thereof are: by weight percentage Sodium dichloroisocyanurate 0.005-0.015% Citric acid 0.6-1.8% Gibberellin 0.01-0.03% Sodium thiosulfate 0.36-1.08% Silver nitrate 0.04-0.12% And 0.1-0.3% of triton by volume percentage, and the balance is water. 2. The pretreatment liquid for cut flowers as claimed in claim 1, characterized in that, the dosage of each component in the said pretreatment liquid is as follows: the concentration of the following components by weight percentage is respectively: sodium dichloroisocyanurate 0.01% , citric acid 1.2%, gibberellin 0.02%, sodium thiosulfate 0.72%, silver nitrate 0.08%; the concentration of triton by volume percentage is 0.2%. 3. The preparation method of cut flower pretreatment liquid as claimed in claim 1, characterized in that, it is prepared according to the following steps: (1) Dissolve citric acid completely in 500 milliliters of water, then add sodium dichloroisocyanurate, and stir to make it fully dissolve, this is solution 1; (2) Add gibberellin to 50 milliliters of absolute ethanol, and stir to make it fully dissolve, this is solution 2; (3) sodium thiosulfate and silver nitrate were dissolved in 50 milliliters of distilled water respectively, then the silver nitrate solution was slowly poured into sodium thiosulfate while stirring, so that these two solutions were fully miscible, and this was solution 3; (4) Pour solutions 2 and 3 into solution 1 in turn, and add the latter solution after the previous solution and solution 1 are fully mixed; (5) Finally, add Triton and stir to make it fully mixed. 4. The method for using the cut flower pretreatment liquid according to claim 1, characterized in that, the cut flower is treated after adding sucrose to the pretreatment liquid before use.