JP2000086401A - Treatment composition for tulip cut flower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition capable of obviating such problems in tulip cut flowers as rapid growth of the stem and its bending as a result thereof, yellowing and dwarfing of the leaves, fading, withering and dropout of the petals, bud blooming obstruction, etc., therefore suitable for preventing tulip cut flowers from rapid stem growth and extending their life and to provide a method for preserving the freshness of tulip cut flowers using the composition. SOLUTION: This composition is obtained by formulating, as the essential ingredients an ethylene-releasing substance such as ethephon or an ethylene precursor, a gibberellin such as gibberellic acid, and a cytokinin such as benzyladenine, and as an optional ingredient, a calcium salt such as calcium chloride in specified concentrations/proportions according to the mode of its use. Tulip cut flowers are treated with a solution containing the above composition so as to prevent the rapid growth of the stems, preserve their freshness and extend their life.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a composition for cut tulip flowers, and a method of using the composition for preventing rapid elongation of stems of cut tulip flowers and extending the life. According to the present invention, it is possible to prevent rapid growth of stems of cut tulip flowers, and to display and sell them for a long time in a retail store while being inserted in water near room temperature. Does not hang down. Also, according to the present invention, the onset of yellowing of leaves and visible signs of petal senescence can be delayed, and the life of flowers can be prolonged.

[0002]

2. Description of the Related Art The life of cut tulip flowers is yellowing of leaves,
Very short due to various factors such as rapid fading and wilting of the petals. In some cultivars, the flowers fall before growth. Also, many tulips show considerable stem elongation when placed in water, resulting in bending of the stem. This is a considerable problem in most flower markets. Tulips do not bouquet with other flowers, for example, because they grow too fast and detract from aesthetic value. In addition, the display life of tulips stored in supermarkets near room temperature is shorter due to the length of the stem. If the stems are too long, they will look like old flowers, and consumers will be less willing to buy. Therefore, supermarkets had to discard unsold tulips about two days after the display.

[0003] It is known that the top of the stem of a tulip inserted in water after harvesting grows particularly, and that the growth rate of this tulip is high within a few days after being inserted in water. ing.

[0004] Cut flower traders are interested in tulips that have a long life span and do not exhibit stem length or bending. This can be achieved by treating the tulip with a chemical that delays the appearance of undesirable signs, but to date, the fact that such treatment has not been applied is that chemicals that have been studied have Reveals that it was not satisfactory.

[0005] The elongation of tulip stems is caused by a gibberellin synthesis inhibitor such as ancimidol (AE Einert (1971) Ho
rtScience 6,459) and ethylene releasing substances such as ethephon (2-chloroethylsulfonic acid) (R. Moe (1980) Act
a Hortic. 109,197; R. Nichols and AM Kofranek (198
2) It is reported to be suppressed by Scientia Hortic. 17,71). Precursors of ethylene biosynthesis in plants, such as the compound ACC (1-aminocyclopropane-1-carboxylic acid), are also used for this purpose. Furthermore, the growth of stem elongation can also be suppressed by substances that inhibit the synthesis, action or transport of auxin, a kind of plant hormone. However, when these compounds are applied to tulips to sufficiently inhibit stem elongation, undesirable side effects occur. Such side effects include inhibition of flower bud growth such that flowering does not occur. Therefore, it is considered that the inhibition of the elongation and growth generally affects the action including the cell elongation process required for flowering.

[0006] Aside from the problem of long stems, tulips may have a short life due to early yellowing of the leaves. Methods for preventing such early yellowing of leaves in cut flowers have also been reported. Early yellowing can be delayed by compounds belonging to two different groups of plant hormones, the cytokinins or gibberellins. Whether cytokinin or gibberellin is more effective depends on the tulip species (Halevy, AHand S. Mayak
(1979) Hortic. Reviews 1,204, and ibid (1981) Horti
c. Reviews 3,59). However, when these substances are used in cut tulip flowers, although yellowing of the leaves can be delayed, a more serious new problem arises. When gibberellin is used, there is a problem of prolonged stem length. When a concentration of cytokinin that can inhibit leaf yellowing is used, stem browning that may be caused by phytotoxicity occurs. This causes the growth of microorganisms in the vase water, inhibition of water absorption, leaf atrophy, insufficient flowering and early wilting of flowers. Therefore, these two compounds cannot be used and their alternatives cannot be used.

[0007] Discoloration, withering, and shedding of petals, which is referred to as petal aging, is another problem in cut tulip flowers. In general, it has been reported that these signs in cut flowers can be delayed by inserting the stem in a sugar solution that is usually used in combination with an antimicrobial. Depending on the tulip species, petal wilting or shedding is prevented by compounds that interact with the plant hormone ethylene (the petal senescence is said to be ethylene-sensitive) or by compounds belonging to the cytokinins or gibberellins. (Halevy, AHand S. Mayak (1979) Hortic. Rev
iews 1,204, and (1981) Hortic. Reviews 3,59). Petal fading and wilt in tulips are ethylene insensitive because specific inhibitors of ethylene synthesis or ethylene action have no effect. Sugars used in combination with antimicrobial agents have little effect on petal discoloration and withering, but can also induce a sudden break in the stem just below the flower. Cytokinin has been found to slightly delay petal senescence, and gibberellin has a small but senescent delaying effect. However, the application of cytokinins and gibberellins causes undesirable side effects as described above. As described above, substances having a possibility of delaying aging could not be applied because they have little effect or have side effects.

[0008]

As described above, it is considered that the various problems in tulip cut flowers cannot be solved by treating with various chemicals in other cut flowers that have been reported so far. Was. An object of the present invention is to suppress the problems of cut tulip flowers, such as rapid elongation and bending of stems, yellowing and atrophy of leaves, fading of petals, withering and falling off, and inhibition of flowering of flower buds. Another object of the present invention is to provide a cut flower composition suitable for preventing rapid elongation of stems of cut tulip flowers and extending the life of the cut flowers, and a method for maintaining the freshness of cut flowers using the tulip cut flower composition.

[0009]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and (A) an ethylene-releasing substance or an ethylene precursor, which can be a harmful substance when used alone, (B) ) Gibberellin and (C) cytokinin as essential components, calcium salts such as calcium chloride as optional components, and using a solution of a composition in which these components are blended at a predetermined ratio, cut tulip flowers according to their distribution form and the like. The present inventors have found that the treatment can prevent rapid elongation of stems of cut tulip flowers and can prolong the life thereof, and have completed the present invention.

That is, the present invention relates to a composition comprising (A) an ethylene releasing substance or an ethylene precursor, (B) gibberellin and (C) cytokinin, wherein the molar ratio (A) :( B) is 0.1 to 0.1. 2, molar ratio (A) :( C) is 0.3-5, molar ratio
(B): A composition for a cut flower suitable for preventing rapid elongation of stems of cut tulip flowers and prolonging the life thereof, wherein (C) is 0.5 to 10 (claim 1). ), The molar ratio (A) :( B) is 0.15 to 0.6, the molar ratio (A) :( C) is 0.5 to 2, and the molar ratio (B) :( C) is 1.5. The composition for cut flowers according to claim 1, wherein the composition is (Claim 2).
Alternatively, the composition further comprises (D) a calcium salt such as calcium chloride, and the molar ratio (A) :( D) is 0.002 to 0.03;
And / or the molar ratio (B) :( D) is from 0.01 to 0.15, wherein the composition for cut flowers according to claim 1 or 2 (claim 3) or the ethylene releasing substance is ethephon. The composition for cut flowers according to any one of claims 1 to 3, wherein the gibberellin is gibberellic acid, and the cut flowers according to any one of claims 1 to 4. The present invention relates to the composition for cut flowers according to any one of claims 1 to 5, wherein the cytokinin compound is benzyladenine.

The present invention also provides a composition comprising (A) an ethylene releasing substance or an ethylene precursor, (B) a gibberellin and (C) a cytokinin, or (A) an ethylene releasing substance or an ethylene precursor, (B) a gibberellin, (C) A method of preventing rapid elongation of stems of cut tulip flowers and prolonging the life thereof by using a composition comprising (C) cytokinin and a calcium salt, particularly (D) calcium chloride. , (A), (B) and (C) or (A), (B),
As the composition consisting of (C) and (D), the respective concentrations were 0.14 to 0.52 mM (A), 0.2 to 1.5 mM
The method according to claim 7, wherein the composition having (B), 0.1 to 0.5 mM (C) and 3 to 50 mM (D) is applied for 1 to 18 hours, (A), (B) and (C) or (A), (B), (C) and as a composition comprising (D), each concentration of 0.07 to 0.24 mM (A),
0.1-1.0 mM (B), 0.05-0.25 mM
8. The method according to claim 7, wherein the composition having (C) a concentration of 1 to 20 mM (D) is applied for 18 to 72 hours, and (A), (B) and (C). Or (A), (B), (C)
And (D), each having a concentration of 0.04 to 0.10 mM (A), 0.2 to 0.5 mM
(B), 0.01-0.05 mM (C), 1-20 mM (D)
The method according to claim 7, wherein the composition is applied until the tulip is discarded.

[0012]

DETAILED DESCRIPTION OF THE INVENTION The present invention can be used immediately after harvest (with short pulse treatment with relatively high concentrations of chemicals) prior to flower display at retail outlets, or when flowers are long. It is included in the solution to be inserted for a period of time (applied at a low concentration), and the combination of chemicals appropriately suppresses the elongation of the tulip stalk and the life of the tulip in the vase (vase lif
e) is found to be sufficiently long. The three chemicals that have a negative effect when used alone have a positive effect when used in combination. To completely counteract the undesirable side effects of these three substances, certain (neutral) additive substances can also be combined with the three substances.

By treating cut tulip flowers according to their distribution form, etc., the composition of the present invention, which can prevent rapid elongation of stems of cut tulip flowers and prolong its life, comprises (A) ethylene release The substance or ethylene precursor, (B) gibberellin and (C) cytokinin are used as a combination of essential components, calcium salts such as calcium chloride are used as optional components, and these components are blended at a predetermined ratio and concentration according to the use form. ing.

The combination of chemicals used in the composition of the present invention may be an ethylene releasing substance such as ethephon or 1
-An ethylene precursor such as aminocyclopropane-1-carboxylic acid (ACC), a gibberellin plant growth substance such as gibberellic acid (GA3), kinetin (furfuryl-adenine), zeatin (hydroxyisopropenyl-adenine), Consists of a cytokinin plant growth substance such as isopentenyl-adenine or especially benzyladenine. In addition, calcium salts such as calcium chloride can be used. The relative and absolute amounts used and more preferred embodiments of these substances are specified in the dependent claims.

Reference (AJ Lukaszewska (1995) Acta Hort
ic. 405,351) report that the life of tulips in a vase is not prolonged by a solution containing sugar, an antibacterial substance, gibberellin (GA3) and ethephon.
Other references (TR Pisulewski, DM Goszczynska, and R.
M. Rudnicki (1989) Rosliny Ozdobne, Prace ISjK, ser.
BT 14,155, and substantially the same book by the author, published (1989)
Acta Hortic, 251, 115) suggests that this combination has a positive effect. AJ Lukaszewska (19
95, supra) conducted a follow-up study by Pisulewski et al. (1989, supra) and found no positive results in prolonging life. We have obtained similar observations that the above combination of chemicals is not suitable for good flowering life, as the flowering problem causes flowering problems and leaves cannot be prevented from yellowing.

[0016] Ethephon and gibberellic acid are used in concentrations that sufficiently inhibit stem elongation and prevent complete flowering of the florets prior to sale to the consumer. The inclusion of cytokinins such as benzyladenine acts antagonistically to this negative effect. However, the presence of benzyladenine will result in browning of the lower end of the stem. This undesirable effect can be completely counteracted by adding calcium ions to the solution. Thus, when pulsed, two substances need to be added to obtain long life with minimal stem elongation. Sugars and antibacterials can be used arbitrarily as they are not critical for longevity.

Ethephon, gibberellic acid and cytokinin (benzyladenine), when used alone, are undesirable because they have phytotoxicity (visual signs of tissue damage) and other undesirable effects on flower quality. It acts.

Ethephon and other ethylene-releasing substances required to control stem elongation, when used alone, occasionally cause early yellowing of leaves with leaf damage, inhibit flowering of florets, In some tulip-cultivated varieties, and in some cases, shedding (dropping off) of petals, and occasionally mold infection. These side effects of ethephon are:
It is counteracted by the use of gibberellic acid and cytokinin (in the present invention benzyladenine is more preferably used, but other cytokinins such as kinetin are also effective).

Gibberellin is required to prevent yellowing of the leaves starting from the tip and spreading downward toward the trunk of the leaves. This slows down the petals. It is also necessary to counteract the many undesirable effects of ethephon. This prevents damage to the stem, makes the flowering water clear, and delays flower withering. However, because of the increased growth of the stem, the undesirable problem of bending the stem arises.

Prevention of premature yellowing that occurs throughout the leaf blade requires benzyladenine or other cytokinins, which are also important in overcoming the undesirable effects of ethephon. This also slows down the petals. The need for cytokinins during treatment was confirmed by the observation that after ethephon and gibberellic acid treatments, they did not flower properly and the leaf blades began to yellow in a manner different from the yellowing delayed by gibberellin. ing. However, this often results in stem damage. In other words, the stems are discolored (discolored) while the life of the cut flowers is not exhausted, and the tips are withered. as a result,
Lack of turgor pressure in the leaves results in insufficient water absorption. Water pressure causes the flowers to wither early, leading to insufficient flower growth and flowering.
Cultivated species vary in their susceptibility to this chemical injury. Benzyladenine is found to have phytotoxic effects both when added to a mixture of ethephon and GA3 and when used alone.

The discoloration of the stem caused by benzyladenine and the subsequent changes can be completely prevented by adding calcium ions to the treatment solution. Calcium ions alone do not have undesirable effects.

After the harvest, the tulips are usually transported in a dry state to an auction market or a wholesale market, and then transported again in a dry state to a retail store. are doing. During transport in the dry state, stem elongation usually does not occur or is very slight, as long as the transport temperature is kept low. If the temperature is not maintained at a fairly low temperature, the flowers begin to heat themselves and grow. Flowers laid in water will grow even faster if they are not kept cool. Such situations usually occur in retail stores. Tulip is 2
If it is not sold within a day, it will not be sold anymore and must be discarded. Chemical treatment to prevent stem elongation is performed immediately after harvest or in the water if the stems are immersed in water, before the flowers are displayed for sale. The flowers are sold quickly, with some bundles being sold quickly, and the duration of the treatment is too short to extend the lifespan under the buyer,
Once displayed, they cannot be processed. Sales of tulip flowers in supermarkets are increasing rapidly compared to those in retail stores, and treatment in supermarkets is easier than usual. More preferred than treatment. In most practical situations, a short pulse treatment performed directly after harvest is preferred.

The above-mentioned preferred treatment, which is carried out immediately after the harvest, applies to the sale of tulips which are bouqueted in one kind. If tulips are bouqueted with other species, it is also known that compounds that prevent stem elongation, such as ethephon, are harmful to other cut flowers, so this is also treated before bouqueting, Cannot be used to add water to bouquets. Bouquets are often made shortly after the flower competition and before the wholesale market. This means that the tulips mixed into the bouquet are processed early while in the distribution network.

In addition to the above-described pulse processing immediately after harvesting, it is conceivable that tulips are processed in a certain distribution network by flower auctions, transportation, wholesale markets, or retail stores. This treatment can be short-term (1 to 18 hours pulse) or long-term (1.5 to 3 days) or the entire life as a flower arrangement. The invention also relates to the treatment of the flowers during this longer period, other than the pulse treatment immediately after harvesting. In short-term (1-18 hour pulse) processing, the concentration is 0.14.
0.52 mM ethylene donor or ethylene precursor (A), 0.2-1.5 mM concentration of gibberellin (B),
A pulse treatment of 0.1 to 0.5 mM concentration of cytokinin (C) and, if necessary, 3 to 50 mM concentration of calcium salt is applied. 1. A very short treatment within 1 hour at a higher level, for example a concentration of 1.0 mM (A);
5 mM (B), 1.0 mM (C) and 100 mM calcium are also applicable. In the whole life processing until the tulip is discarded, the concentration is 0.04 to 0.10 mM (A),
0.2-0.5 mM (B), 0.01-0.05 mM
(C) and optionally 1-20 mM calcium salt is used. On the other hand, as an intermediate treatment during 18 to 72 hours, a concentration of 0.07 to 0.24 mM (A), 0.1
A treatment with a calcium salt of 1.0 mM (B), 0.05-0.25 mM (C) and, if necessary, 1-20 mM is preferred. The present invention also includes a variety of concentrates suitable for dilution to these concentrations or to the required concentration. Further, the treatment of the present invention may be carried out at the consumer level, but in this case, many consumers do not carry out the treatment, and even if the treatment is carried out, it is usually too late that the stem has already started to grow or the leaves have turned yellow. And petal aging has already begun, both during transportation to retail stores and during sales displays at retail stores, which may be less effective.

The present invention relates to the partial prevention of stretching before and after the consumer has planted flowers in the vase. The latter a) causes the flower to blossom normally, and b) causes the nodes of the stem directly below the flower to become vertical rather than the angle at which the stem was laid in the vase, causing the stem to move according to the weight. This movement is important in any bouquet of tulips and is a feature expected by consumers. The opposite requirement of completely inhibiting growth before sale and partial regression after birth is another advantage with the present invention.

The composition according to the invention comprises Golden Apeldon, Yokohama, Monte Carlo (yellow petals), Cassini, Abba (red petals), White Dream (white petals), Lane Vandermark (red and white petals), Barcelona (pink) ), And negrita (purple), have been found to moderately prevent stem elongation and produce longer flowering results in many tulip cultivars. The flower life of these cultivars was evaluated after the transport test. Following the pulse treatment immediately after harvesting, the flowers were
Keep dry at ℃. The flowers were wrapped in a bundle of 12 perforated plastic tubes. The number of days these flowers were kept alive in water at 20 ° C. was about 10 or 11 days, depending on the experiment. The state of sale here means that the stem falls down and does not bend below horizontal, leaves are kept green, and the tips of the flowers are open and look fresh. These results indicate that the flower of this cultivar was kept in a retail store at 20 ° C. for 4 days and
It means to keep flowers with consumers for a day. The results also indicate that in cut flowers of all major groups of tulips, certain cultivars have a markedly favorable effect of pulse treatment. Angelique, Christmas Dream, Estella Reinfeld and Ruby Red showed similar favorable effects of pulse treatment on the other cultivars tested.

For many of the other cultivated species, a significant number did not improve the lifespan by this treatment by 10 or 11 days, but varied between 8 and 10 days. Such cultivars include Annaland Glen, Alma, Bastogne, Casablanca, Lucky Strike, Prominence and Reclaird.

Preliminary experiments on a few cultivars such as Adrem, Christmas Marvel, and Lustige Witwe showed slight fading of the petals upon treatment, but not with undesirable side effects. You might also say that. Some cultivated species, such as Gander's Rhapsody, had their petals fall before growth. Also, for cultivars such as Adrem and Pink Impression, the standard treatment did not adequately inhibit elongation. Therefore,
It is not preferable to apply this treatment without conducting detailed tests on cultivated species and, if necessary, adjusting the required concentrations of various chemical substances.

This pulse treatment has a favorable effect on the inhibition of stem elongation and another parameter, the longevity of the cultivar golden apredone. Lukaszewska (1995
Supra) reported no effect when applied to the cultivar Golden Apple Dawn,
In contrast to the lifetime treatment developed by wski et al. (supra, 1989).

In the process of extending the life of a flower, it is necessary to provide the flowers with appropriate amounts of various chemicals. Some minimum amount of chemicals that a flower normally absorbs with water must be provided to the extent that undesirable side effects do not occur. Thus, the concentration used in a suitable processing solution depends on the processing time and the limits of ineffectiveness and undesirable side effects.

In the present treatment, since the undesirable side effects of the compound must be counteracted by an appropriate amount of other chemicals, the concentration ratio between the various chemicals is important, but the optimal ratio depends on the tulip cultivar. Dependent.
The ratios used in the examples were generalized, and those of the above-mentioned cultivated species which had a relatively high effect on flower life during display and after arranging by treatment were adopted. Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.

Embodiment 1 This embodiment relates to a short-time treatment of a flower. Due to the short treatment period, all chemicals are applied at relatively high concentrations in this treatment. This process takes place immediately after harvest,
It can be adapted even later, such as when the stem is not yet overgrown. In the present embodiment, the pulse processing is 6
It was time.

Tulip flowers (Tulipa gesneriana, c
v.Leen van der Mark) is harvested in the morning, soaked in water at room temperature for 4 hours, and then dried at room temperature for 2 hours. Groups of 12 animals were incubated at 20 ° C. for 6 hours with 0.14-0.52 mM ethephon, 0.2-1.5 mM gibberellic acid (GA
3), 0.1 to 0.5 mm of benzyladenine and 3 to
Treated with a solution consisting of 50 mm calcium chloride. Put the flowers in a transparent plastic tube without perforation (sleeve
d) Dry at 5 ° C for 48 hours. Subsequently, the flowers are separately placed in 20 ° C. demineralized or tap water. The photon flux from the fluorescent lamp is 15 micromoles per square meter, the lamp is lit continuously for 12 hours per day, and the flowers are placed in the dark for the remaining 12 hours. As an alternative, the photon flux may be natural light entering through a window. Maintain 60% relative humidity or ambient humidity. Control flowers are pulsed for 6 hours in water or not pulsed.

The control stem elongation over a period of time in water is approximately 13 cm in many experiments, and the stem sags after 2-3 days. The rate of elongation, that is, how long the stem sags, depends on the season and the treatment of the bulb before planting (forcing at low temperatures). In the pulse treatment with the chemical substance, if the elongation of the stem is suppressed to 5 cm, the flower does not sag. When the flower grows sufficiently, it shows hinterland (the nature of the stem extending upward and the root extending downward). Leaf yellowing is much slower and petal life is considerably longer. Hanging stems,
Given that the life of a flower ends with the onset of yellowing of the leaves and either the fading or wilting of the petals, the life of the control flower is usually about 4 days. The lifetime was between 8 and 11 days with the pulse treatment with the chemical substance.

Example 2 This example relates to the long-term treatment of flowers in solution, starting with growers, transport, flower auctions, wholesalers or retailers. This processing can be ended in any of the distribution networks.
Some tulips can be sold immediately after being displayed in the store, so they cannot be processed in a sufficient amount of time, so they cannot be applied during the period of display at the retailer's store. Therefore, the process is adaptable at any time before display at the retailer. The process is longer than the pulse process and therefore requires relatively low concentrations of all chemicals.

Tulip flowers (Tulipa gesneriana, c
v.Leen van der Mark) is harvested in the morning, soaked in water at room temperature for 4 hours, and then dried at room temperature for 2 hours. Place groups of every twelve in a clear plastic tube without perforations. Subsequently, the flowers were separately immersed in demineralized or tap water at 12 ° C. for 48 hours, and 0.07 to 0.24 ethephon was used as a chemical substance.
0.1-1.0 mM gibberellic acid (GA3), 0.0
5 to 0.25 mm benzyl adenine and 1 to 20 mm
M calcium chloride was added. The photon flux from fluorescent lamps is 15 micromoles per square meter and 1
Turn on the lamp continuously for 12 hours per day
For time, the flowers were placed in the dark. As an alternative, the photon flux may be natural light entering through the window. 6 relative humidity
Keep at 0% or atmospheric humidity. Control flowers are exposed to water with the same light and humidity conditions, or 4 ° C at 12 ° C.
Dry for 8 hours. After treatment, the stems are dried for the same time to simulate transport time and transferred to demineralized or tap water.
The control flower life and treated flower life exhibited the same characteristics as the flower life described in Example 1.

[0037]

EFFECTS OF THE INVENTION When the composition for cut flowers of the present invention is used, rapid elongation and bending of stems, yellowing and atrophy of leaf blades, discoloration of petals, withering and falling off, and inhibition of flowering of flower buds in cut tulip flowers. Etc. can be suppressed, the rapid elongation of the stem of the cut tulip flower can be prevented, the freshness of the cut flower can be maintained for a long time, and the life of the cut tulip when used in a vase can be extended.

 ──────────────────────────────────────────────────続 き Continued on the front page (71) Applicant 599131767 O. Box 17, NL-6700 AAWA GENINGEN the Netherlands (72) Inventor Van Dawn, Wouter The Netherlands Nuel-6816 Aaldub Rue Arnhem Kemperbergerweg 745 (72) Inventor Perik, Rene The Netherlands Nuel-Geiger-Pinge-Gein-Pigeng 8, 9 bee

Claims (10)

[Claims] 1. A composition comprising (A) an ethylene releasing substance or an ethylene precursor, (B) gibberellin and (C) cytokinin, wherein the molar ratio (A) :( B) is 0.1 to 2, ratio
(A): (C) is from 0.3 to 5, molar ratio (B): (C) is from 0.5 to
10. A composition for cut flowers, which is suitable for preventing rapid elongation of stems of cut tulip flowers and extending the life of the cut tulip flowers. 2. The molar ratio (A) :( B) is 0.15 to 0.6,
The composition for cut flowers according to claim 1, wherein the molar ratio (A) :( C) is 0.5 to 2, and the molar ratio (B) :( C) is 1.5 to 6. 3. The composition further comprises a calcium salt, especially (D)
Contains calcium chloride, molar ratio (A) :( D) is 0.002
And / or the molar ratio (B) :( D) is 0.01 to 0.03.
The composition for cut flowers according to claim 1 or 2, wherein the composition is 0.15. 4. The composition for cut flowers according to claim 1, wherein the ethylene-releasing substance is ethephon. 5. The composition for cut flowers according to claim 1, wherein the gibberellin is gibberellic acid. 6. The composition for cut flowers according to claim 1, wherein the cytokinin compound is benzyladenine. 7. A composition comprising (A) an ethylene releasing substance or an ethylene precursor, (B) a gibberellin and (C) a cytokinin, or (A) an ethylene releasing substance or an ethylene precursor, (B) a gibberellin, (C) A method for preventing rapid elongation of stems of cut tulip flowers and prolonging the life thereof, comprising using a composition comprising cytokinin and a calcium salt, particularly (D) calcium chloride. 8. (A), (B) and (C) or (A),
As the composition consisting of (B), (C) and (D), the respective concentrations were 0.14 to 0.52 mM (A), 0.2 to 1.5
mM (B), 0.1-0.5 mM (C), 3-50 mM (D)
The method of claim 7, wherein the composition is applied for 1 to 18 hours. 9. (A), (B) and (C) or (A),
As a composition comprising (B), (C) and (D), the respective concentrations were 0.07 to 0.24 mM (A), 0.1 to 1.0 mM.
mM (B), 0.05-0.25 mM (C), 1-20 mM
The method according to claim 7, wherein the composition (D) is applied for 18 to 72 hours. 10. (A), (B) and (C) or (A),
As a composition comprising (B), (C) and (D), the respective concentrations were 0.04 to 0.10 mM (A), 0.2 to 0.5
mM (B), 0.01-0.05 mM (C), 1-20 mM
The method according to claim 7, wherein the composition (D) is applied until the tulip is discarded.