JP3343588B2 - Method for inducing rooting of rootless plants - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for inducing rooting of rootless plants that are rooted in rooted plants that have been cut into cultivated soil and that can be efficiently used for rooting.

[0002]

2. Description of the Related Art Indole-3-butyric acid (trade name: Oxyberone) and α-naphthaleneacetamide (trade names: Luton, transplanton) are commercially available as conventional plant rooting inducers. JP-A-241239 discloses esters of 4-chloroindole-3-acetic acid, and JP-B-6-62563 discloses dichloroindole-3-acetic acid derivatives.

On the other hand, indole-3-acetic acid and the like are known as endogenous auxins which are natural substances, and 4-chloroindole-3-acetic acid is isolated from immature pea seeds and has strong auxin activity. Since it is hardly decomposable for enzymes such as peroxidase, it has been found that its activity is persistent.

[0004]

However, indole-3-acetic acid and its derivatives, and indole-3-butyric acid and its derivatives have high reactivity of carbon atoms at the 2- and 3-positions of the indole ring in plants. Therefore, it has a drawback that it is easily decomposed due to oxidation and disappears in a plant body without sufficiently exhibiting its activity.

[0005] In addition, conventional plant rooting inducers can be directly dressed, for example, directly on cuts of foliage or the like, or diluted to a predetermined concentration with water, and the cuts of, for example, foliage can be added to the cuts of the foliage. It is soaking or dipping, and after cutting and filing the cut foliage one by one, soaking or dipping one by one, for example, it is planted in the cultivation in the plug, so it is difficult to work smoothly and the working time And the work efficiency is poor.

[0006] The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide,
The present inventors have found that spraying an aqueous solution of 5,6-dichloroindole-3-acetic acid, a salt thereof, and esters in the form of a mist can efficiently induce rooting of the rootless plant and activate the rootless plant. The invention has been completed. Although the mechanism of action is not clear, the compound sprayed in the form of a mist on the leaf surface is absorbed through the stoma of the back of the leaf, reaches the site of action via the phloem tube, and induces differentiation into the primordium. It is considered that the action of the primordium and the action of promoting the development of adventitious roots are continuously expressed.

[0007] That is, an object of the present invention is to provide a method for inducing rooting of rootless plants excellent in usability and workability, which can induce rooting even to rootless plants cut into cultivated soil and which can be efficiently activated. It is in a place to be confused.

[0008]

The gist of the means adopted by the present invention to solve the above-mentioned problems is as described in the appended claims.

According to the first aspect of the present invention, there is provided the following formula:

(Equation 2) (Wherein R is hydrogen, alkali metal, methyl, ethyl, 1
-Propyl, 2-propyl, 1-butyl, isobutyl,
2-butyl, (R) -2-butyl, (S) -2-butyl, tert-butyl, 1-pentyl, which represents an alkyl group or an allyl group) as the main active ingredient of the rooting inducer. Containing the solution, rooting induction method of a rootless plant characterized by inducing rooting of the plant by spraying on the foliage of the rootless plant planted in the soil, ''
This is the gist.

[0010] The invention according to claim 2 provides a method for inducing rooting of a rootless plant according to claim 1, wherein the concentration of the compound is in the range of 10 ^-7 to 10 ^-2 M. Is the gist.

According to the method for inducing rooting of a rootless plant of the present invention, in actual use, instead of soaking or dipping the cuts one by one as in the prior art and implanting the cuts in the soil, the soil in the plug is not cultivated. Since rootless plants are implanted in the mist, for example, the spray is sprayed in a mist form via a back sprayer, a sprinkler provided in a cultivation house, an irrigation pipe, or the like. There is no need to plant the soil after doping, so that smooth work can be performed and the work time required can be reduced.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the method for inducing rooting of an infinite plant of the present invention will be described in more detail with reference to Examples.
The present invention is not limited by the following examples unless the gist is exceeded.

The optimum concentration of the plant root inducing agent according to the present invention varies depending on the type of plant, but is generally about 1 × 10 ^−7.
It is used in a concentration range of M to 1 × 10 ^-2 M. 1x10 ^-7
If the solution is more dilute than M, the rooting-inducing effect on the plant tends to be insufficient. If the solution is more than 1 × 10 ^-2 M, the rooting-inducing effect may not be recognized depending on the plant. Note that this concentration range is merely a matter of convenience, and it is preferable to preliminarily examine the optimum concentration for each type of plant, etc., and to appropriately dilute with water based on the results.

The agent for inducing plant rooting according to the present invention can be used as a single aqueous solution depending on the purpose of use, or it can be used after preparing a concentrated solution and diluting it to a predetermined concentration with water, for example, at the time of use. . Furthermore, it may be used by dissolving it in a solubilizing agent such as alcohol and diluting it with water so as to have a predetermined concentration, or dissolving it in an organic solvent such as xylene and further dissolving it in, for example, polyoxyethylene alkylphenyl ether and alkylbenzene. An emulsion may be obtained by mixing with a mixture of calcium sulfonate, and the emulsion may be diluted with water to a predetermined concentration for use.

In order to promote or stabilize the action and effect, auxiliary agents such as sodium dodecylbenzenesulfonate and nonylphenyl ether which are commonly used as agricultural chemicals can be mixed, and other agricultural chemicals, fertilizers, and extenders can be used. It is also possible to appropriately mix and use a dressing or a commercially available plant growth regulator.

[0016] The plant root inducing agent according to the present invention includes cereals,
The present invention can be applied not only to crops such as potatoes, vegetables, mulberry, sugar beet, sugar cane, and other industrial crops, but also to various plants such as trees such as pine, cedar, cypress, and hiba, flowers, and ornamental plants.

Example 1 Root Inducing Action and Vitalization Promoting Action of Violet Cuttings Violet seedlings during vegetative cultivation were subjected to a test. The lower part of the stem of the violet seedling was cut off to prepare a rootless violet cutting (rootless). Violet cuttings (unrooted) were planted one by one on plug trays filled with cultivation soil, and sufficiently watered.

A plug tray is arranged on a work table in a green house controlled at a temperature of 25 ° C. to 33 ° C., and an aqueous solution of 5,6-dichloroindole-3-acetic acid (5,6-Cl ₂ -IAA) (5 ppm) is provided. Is sprayed into a mist and sprayed to the extent that the leaves are evenly wet (once only). After growing for 38 days while irrigating once or twice a day, the number of roots that have rooted,
The number of cuttings that did not root and the number of dead cuttings were counted. 5,6-dichloroindole-3-acetic acid (5,6-Cl _2-
IAA) Instead of an aqueous solution, only water was sprayed in the form of a mist, and then grown under the same conditions as above, and used as a control group. Table 1 shows the results.

Table 1 Total number of surveys (number) Number of roots (number) No roots (number) Number of withering (number) (%) (%) (%) (%) Treatment group 98 79 514 (= 5) , 6-Cl ₂ -IAA) (100) (81) (5) (14) Control group 101 27 173 (100) (27) (1) (72)

Of the 101 violet cuttings used in the control group, 73 died and only 27 (27%) had rooted, whereas the treated group had 98 cuttings.
Of the books, 79 (81%) had rooted and 1 died.
There were only four, and the rooting and rooting effects by 5,6-dichloroindole-3-acetic acid were extremely remarkable.

In addition, as a result of indiscriminately excavating and visually recognizing,
In the control group, rooting induction could not be confirmed until day 7 or later, but in the treatment group, rooting induction was observed from around day 3 (statistical processing was not performed).

The rooting and rooting results of the treatment group using an aqueous solution of 4-chloroindole-3-acetic acid containing a spreading agent (trade name: Nitten) diluted 1000 times were measured.
The same result as above was obtained even when compared with the control group using only the double-fold diluted spreading agent (trade name: Nitten).

Example 2 : Root-inducing action and root-promoting action of chrysanthemum stem pieces A 5 cm long stem is cut off from the tip of a chrysanthemum stem at 5-10 cm to prepare cuttings having two leaves attached thereto. did. A non-test solution (5 ppm) aqueous solution was atomized with a mascot spray and sprayed once so that the leaf surface was uniformly wetted, with each of the eight cuttings under the open-field condition as one section. These pots were grown in a cabinet set at a minimum temperature of 15 ° C. or higher at night and a maximum temperature of 30 ° C. or lower during the day.
During the cultivation period, an appropriate amount of watering was performed depending on the degree of drying of the soil.

On the 50th day after spraying the test liquid, stem pieces were dug up and the rooting degree of each ear was indexed by rank. Table 2 shows the results.

Table 2 Treatment area Number of rooting points Total index value 1 2 3 4 5 6 7 8 No processing 2 1 1 1 1 1 0 0 7 5,6-Cl ₂ -IAA 3 3 2 2 2 1 1 0 14 5,6-Cl ₂ -IAA Na 3 3 3 2 2 2 1 0 16 5,6-Cl ₂ -IAA Me 3 3 3 2 2 1 1 1 16 5,6-Cl ₂ -IAA Et 3 3 2 2 2 2 1 1 16 5,6-Cl ₂ -IAA 1-Pr 3 3 3 2 2 2 1 1 17 5,6-Cl ₂ -IAA 2-Pr 3 3 3 3 2 2 1 1 18 5,6-Cl ₂ -IAA Ally 3 2 2 2 1 1 1 0 12 5,6-Cl ₂ -IAA 1-Bu 2 2 2 2 1 1 0 0 10 5,6-Cl ₂ -IAA 2-Bu 2 2 2 1 1 1 0 0 9 5,6-Cl ₂ -IAA isoBu 2 2 2 1 1 0 0 0 8 5,6- Cl ₂ -IAA pentyl 2 2 2 1 1 0 0 10 Rooting degree 3: Rooting number is 20 or more per ear. Rooting degree 2: 19 to 10 roots per ear. Rooting degree 1: Rooting number is 9 to 5 per ear. Rooting degree 0: Rooting number is 4 or less per ear (including unrooted).

[0026]

According to the present invention, a root-free plant directly implanted with a plant root-inducing agent containing 5,6-dichloroindole-3-acetic acid, a salt thereof and a compound belonging to an ester as an active ingredient is described below. According to the rooting induction method of spraying directly onto the foliage from above using a simple sprayer or misting, etc., it is necessary to sow the cuts one by one or dipping them as before, and then plant them in the soil. Instead, rootless plants such as foliage and spikes are directly planted in the soil in the plug, etc., and from above, the rootless plants are passed through, for example, a shoulder sprayer, a sprinkler provided in a cultivation house, a watering pipe, etc. Because it is sprayed in the form of a mist on the leaf surface of the body, excellent usability and workability can be obtained, and rootless plants can be efficiently induced to root and survive. Ri, certainly equal capable of vegetative propagation, operational effects of extremely excellent in effectiveness.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masato Katayama 3-252 Shinonokaze, Midori-ku, Nagoya-shi, Aichi Prefecture Takinozu House 10 Building 308 (72) Inventor Eiji Kageyama 648-1 Jindo, Mino City, Gifu Prefecture Tokai Kasei Co., Ltd. (56) References JP-A-3-169858 (JP, A) JP-A-9-241239 (JP, A) JP-A-11-343205 (JP, A) JP 6-62563 (JP, B2) Table 2000-501395 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01N 43/38 A01G 1/00 302 A01G 7/00 604 A01N 25/00 102 A01N 25/02

Claims (2)

(57) [Claims] (1) The following formula: (Wherein R is hydrogen, alkali metal, methyl, ethyl, 1
-Propyl, 2-propyl, 1-butyl, isobutyl,
2-butyl, (R)-2-butyl, (S)-2-butyl, tert- butyl, primary chromatic of root inducing agent of the compound represented by 1-pentyl represents an alkyl group and an allyl group) <br A method for inducing rooting of a non-rooted plant, which comprises spraying a solution containing the active ingredient on a leaf surface of a non-rooted plant planted on a soil to induce rooting of the plant. Wherein the concentration of said compound, 10 ^-7 to 10 ^-2 root inducing method of unrooted plants according to claim 1, wherein the M in the range of.