JPH0595733A - Method for grafting tree and device for taking care of grafted tree - Google Patents

Abstract

PURPOSE:To massively obtain healthy grafted seedlings in a short period by grafting scions to the stocks of seedlings, holding the grafted state, carrying grafted seedlings into a rooting-accelerating device and subsequently taking care of the grafted seedlings until the grafted parts are rooted. CONSTITUTION:The scions 2 of seedlings otherwise grown are grafted to the stocks of seedlings 1, and the grafted parts are held with holders 4, etc., in the grafted state. The grafted seedlings are carried into a rooting-accelerating device 10 having controlled temperature, humidity, luminous energy, etc., and subsequently taken care in the state that air in the seedling-receiving chamber of the rooting-accelerating device is forcibly flowed until at least the grafted parts are rooted.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to tomatoes, eggplants, bell peppers, watermelons, melons, cucumbers, carnations, kasumi grasses and other fruit vegetables, or herbs such as flowers and roses, lilacs, grapes, apples and the like. TECHNICAL FIELD The present invention relates to a grafting method and graft curing device for seedlings such as sweet potatoes, strawberries, chrysanthemums, etc. for assaying viruses or viroids of woody plants such as flowering trees or fruit trees, or tissue culture seedlings.

[0002]

2. Description of the Related Art Generally, it is already known to produce seedlings by grafting for the purpose of disease control, imparting robustness, breeding of vegetative breeding plants that are difficult to cut, and in recent years,
Demand for grafting seedlings is increasing due to the expansion of scale, progress of professionalization, and aging of growers, but current grafting technology must meet the above demand both in terms of quantity and cost. It is difficult.

In recent years, many free seedlings of viruses and the like have been produced by tissue culture, but the grafting method may be used for these virus or viroid tests, which is effective for grafting. The current situation is that there is no good way. Then, conventionally, after grafting, the seedlings were cured in a covering environment in a greenhouse.

[0004]

In the curing of the above-mentioned known grafts in the greenhouse covering environment, the survival rate was low and the seasonal variation in the survival rate was large. In addition, even if the graft is apparently living normally, it is a serious problem that the graft becomes meaningless because it grows into large seedlings or roots from the bottom of the scion and invades the soil after transplanting to this field. There was a point.

[0005]

According to the present invention, a rootstock of a grown seedling is joined with a separately grown spike, and the joined portion is held in a joined state by a holder or the like.
At least the joint part is carried into a rooting promotion device whose light amount is controlled and the air in the seedling storage part of the rooting promotion device is forced to flow in a direction substantially orthogonal to the length direction of the grafted seedling while curing. The roots of the rootstock were rooted from the bottom of the scion, and the roots were prevented from rooting from the bottom of the scion to solve the above problems.

[0006]

[Function] Raise seedlings and scion seedlings and cut the seedling rootstock with a thin and sharp cutter like a razor blade,
The cutting surface of the scion is joined to the cutting surface of the rootstock, and the joining portion is held by a holder or the like so that the joining state is constant. After preparing a large number of grafted seedlings obtained in this way, immediately carried into the seedling storage section of the survival promotion device for controlling temperature, humidity, light amount, etc., and placed on each shelf, preferably,
The temperature inside the survival promotion device is 25 to 30 degrees C and the humidity is 70 to
100%, the light quantity is 3000 to 10000 Lx, CO ₂ is controlled to be 600 to 1200 ppm, and at the same time, the air in the seedling storage section in the rooting promotion device is forcibly pressed or sucked from one side to seedlings of the rooting promotion device. The wind speed in the storage is 30 to 8
The seedling is set to 0 cm / sec, and the air between the seedlings is positively flowed while being aged and grown at least until the joints become rooted.

[0007]

【Example】

Example (1) Explaining one example of the present invention about a graft of tomato, as a scion, Homare 114, Momotaro, House Momotaro, as a rootstock, KNVF R-3, joint, BF Okitsu 101, disease-resistant Shinko No. 1 and the like, the rootstock raising container is a tray having a large number of cells, for example, a planar shape of 51 × 30.
A tray with 51 cm and 51 holes, each hole has a surface area of 17
cm ² , depth 5.5 cm, capacity 67 ml, rootstock 1 was seeded by filling the above soil with culture soil, and about 2.5 leaves (about 5 on average) in the greenhouse. 0.5 cm, number of leaves 2.3
Seedlings were grown to a stem diameter of 1.8 mm). Hogi 2
Grow as a flat seed in a nursery box, or transplant after germination,
The seedlings were grown in a greenhouse at about the same time as the rootstock 1 until the number of true leaves was about 3 as in the rootstock 1. When the rootstock 1 and the scion 2 are in the grafting time as described above, the rootstock 1 is placed as a group 3 seedlings on the workbench at once in the tray 3, and the upper part of the cotyledon of each seedling is cut by a safety razor blade. Cut diagonally at an angle of about 60 degrees.

Next, the elastic material cylindrical holder 4 made of rubber or synthetic resin is fitted into the cut end of the base stock 1. This holder 4 has a large number of grooves in the lengthwise direction of the outer periphery and one slit 5, and the upper and lower end faces may be perpendicular to the lengthwise direction but are tilted in the same direction. By matching and fitting the cut surface of the tree 1, the cut surface of the spike 2 is matched with the inclination direction of the upper end of the holder 4 and only inserted from the upper end of the holder 4 Becomes parallel to the cut surface of the rootstock 1, and both cut surfaces can be joined very easily and closely. In addition, the stem diameter of the rootstock 1 and the scion 2 is 1
Grafting is possible even in the order of mm, and the holder 4 can be omitted by applying an instant adhesive around the joint to maintain the joined state.

When the grafting of all the trays is completed in this way, the tray 3 as it is is carried into the shelf in the survival promotion device 10.

Next, the survival promotion device 10 will be described with reference to FIG.
Inside, a heat insulating inner structure 15 serving as a box-shaped seedling accommodating portion having opposite side walls of the blown perforated plate 12 and the sucked perforated plate 13 is provided with the air passage 16 and the pressurizing chamber 17 separated from each other. 16 has a cooler 18, an electric heater 19 and a humidifier 20 at the lower part of one side.
Are provided between the end of the air passage 16 and the upper portion of the pressurizing chamber 17, and a plurality of blower fans 8 that blow downward are provided to connect the suction side and the discharge side of the heat insulating exterior 11. Ventilation hole 21,
22 is provided, and the CO ₂ gas of the CO ₂ cylinder 28a is passed through the electromagnetic control valve 23 and the nozzle 2 on the suction side of the blower fan 8 is provided.
It is jetted from 8b and mixed with air whose temperature and humidity are controlled.

The control board 24 has a built-in microcomputer, and has a temperature controller 25, a humidity controller 26, a temperature control switch 27, and C.
The control panel is equipped with an O ₂ switch 28, a wind force controller 29, etc., and the temperature and humidity depend on the detected values of the temperature / humidity sensor 25a and the temperature upper limit thermostat 25b and the set values of the temperature controller 25 and the humidity controller 26. The output from 24 operates the cooler 18 or the electric heater 19 and the humidifier 20 to control the room temperature and humidity, and the CO ₂ concentration is measured by the CO ₂ monitor 3.
The electromagnetic control valve 2 is set according to the detected value of 0 and the set value of the control panel 24.
3 is operated and controlled, the wind speed is controlled by adjusting the rotation speed of the blower fan 8 by the wind force controller 29, and the air pressure is substantially averaged in the pressurizing chamber 17, and then the blown perforated plate 12 is adjusted. The perforated plate 12 is blown into the heat insulating inner structure 15 through the perforated holes.
The wind pressure is further averaged in the space 33b provided on the side of the.

The temperature, humidity and wind speed are set according to the kind of plant to be cured, the curing time, etc., but the temperature is 25 to 30 ° C., the humidity is 70 to 100%, and the CO _{2 is} 600 to 600.
Controlled in the range of 1200 ppm, wind speed of 30 to 80 cm / sec, the holes of the blown perforated plate 12 and the suction perforated plate 13 were changed so that the wind speed of any part was substantially uniform, and the area of the hole was made adjustable. It is desirable to keep.

A plurality of shelves 33 are provided in the heat insulating inner structure 15.
A shelf frame 33 having a is accommodated, and a large number of fluorescent lamps or other illuminators 35 ... Are attached to the lower surface of the shelf plate 33a of the second or more stages and the top plate 34. It is controlled in the range of 3000 to 10000 Lx by controlling the number of lights or voltage control.

In curing the tomato grafted seedlings, the seedlings which have been grafted as described above are carried in together with the tray 3 and each shelf board 33a.
..Arranged on top, temperature: 28 degrees C, humidity: 85-95%,
Illumination: 5000Lx, CO ₂ concentration: 600~900pp
m, wind speed: When curing was performed while controlling at 50 to 70 cm / sec, the airflow controlled at the above wind speed showed the shelf plate 33.
The air emitted from the leaves and stems of the grafted seedlings placed on a is removed and new air controlled under the above conditions is supplied, and the air flowing at a higher flow velocity than the leaves at the stems is the rootstock. 1 smoothly blows around the joint between 1 and the scion 2, while performing good ventilation while preventing the joint from becoming over-humidified, whereby the humidity around the joint is substantially set and The physiological activity was promoted by maintaining the temperature.

Further, as a result of properly growing the grafted seedlings thus cured or transplanting them directly into the main field and cultivating, rooting from the joints can be prevented as shown in Table 1. It was

[0016] Breeds; KK = NVFR-3, H = Homare 114, T = Disease-resistant Shinko No. 1 M = Momotaro Rooting from the bottom of the panicle; Average value of scores 5 to 1, all of which cannot reach the ground by this method.

The curing period by the survival promoting device 10 was only 4 days, and the average plant height was 11.6 cm, the number of leaves was 4.9, and the stem diameter was 3.6 mm. Even when paying attention while carrying in the above-mentioned carry-in, the grafted seedlings sway, but the scion 2 is very young and light, the number of leaves is small and the area is small, so the inside of the heat insulation inside 15 The air was forced to flow, but the resistance was small, and the joint surface with the rootstock 1 did not separate or shift.
The following table shows the experimental results comparing the curing under the above conditions and the conventional curing performed in the greenhouse.

[0018]

As is clear from the above experimental results, any of the conventional grafting methods (covering in a greenhouse) can be used for any of the survival rate, the plant height showing growth, the number of leaves, the fresh weight, and the cotyledon growth rate showing seedling growth. A significant significant difference was obtained. It should be noted that fruit vegetables other than tomato can be carried out by almost the same method.

Example (2) Carnation (rootstock is Fuji Nadesico, beauty Nadesico etc.), rose (rootstock is Neubara, R. odorata etc.),
Lilac (rootstock is Ibota) and other flowering trees and grapes (rootstock is pest-resistant grapes), apples (rootstock is Maruba Kaido), cherries (rootstock is Aobazakura), pears (rootstock is quince), 5 to 20 stems or green branches of rootstocks that are relatively easy to root when cuttings such as pears (rootstocks are mamenashi)
Cut with a sharp cutter to a length of cm, cut each desired cultivar on the top with a sharp cutter to a length of 2 to 10 cm from the start of the bud, and join them as a scion.
The grafted seedlings are kept in a joined state by means of cutting, and the grafted seedlings are inserted into a tray filled with the soil as much as possible, and the tray is left as it is and carried into a rooting promotion device in which temperature, humidity, illuminance and wind speed are controlled. At the same time as rooting is promoted, the joint is alive.

Example (3) In the woody plant of the above-mentioned Example (2), cherry blossoms (rootstock is Kaido), magnolias (rootstock is fist), flower dogwood (rootstock is flower dogwood, flower color and characteristics are usually The same as below), plums (rootstocks are plums), peaches (rootstocks are peaches), bayberry (rootstocks are bayberry), loaby (rootstocks are roby), and tangerines (rootstocks are) For rooting at the time of cutting like fruit trees such as citrus fruits such as red peach, peach (rootstock is peach), persimmon (rootstock is mamegaki), plum (rootstock is plum), apricot (rootstock is apricot). For rootstocks that take days, the green branches to be rootstocks once 5 to 20 cm
Cut the length of this green branch and put this green branch in a tray filled with cultivating soil as much as possible and darken (it is enough to cover with black vinyl) Days required for high humidity conditions (mostly 1 month or more) ), Prepare a well-rooted plant in advance, cut the upper part again with a sharp cutter at the time of grafting, and sharpen each desired cultivar to the upper part with a length of 2 to 10 cm from the tip of the bud. Cut them with a cutter, join them as spikes, hold the joined state with the holders 4, carry these grafted seedlings into a survival promoting device in which the temperature, humidity, illuminance, etc. are controlled as they are in a tray and cure them. ..

Example (4) For sweet potatoes, chrysanthemums and strawberries, seedlings that had been previously budded or planted in a tray were used as rootstocks and the middle of the stem or petiole was cut with a sharp cutter, and then the tips of each bud were cut off. 2-10
A stem with a length of cm or a petiole with leaves is cut with a sharp cutter, and this is joined as a scion, and the joined state is held by a holder 4, and these grafted seedlings are kept in a tray at a temperature, Carry it in and bring it to a survival promotion device that controls humidity, light intensity, wind speed, etc.

In the above embodiment, the size of the rootstock, the period in the curing process, the illuminance, the humidity, the temperature, the wind speed, etc. are set according to the kind of seedling.

[0024]

Industrial Applicability According to the present invention, when the seedlings grafted as described above are carried into the survival promoting device and cured, the air around the leaves of the seedlings and the joints of the shelves moves in the lengthwise direction of the grafted seedlings. Forcibly flows smoothly in a direction substantially orthogonal to, which promotes metabolic action by the leaves and prevents overhumidity at the junction, while always maintaining fresh air with controlled temperature and humidity. It is possible to rapidly realize a dense joint by contacting with each other, and it is possible to rapidly and mass-produce grafted seedlings with well-established joints, and at the same time rooting from the bottom of the scion 2 during cultivation. As a result, it is possible to continue the original function of the graft until the cultivation is completed.

[Brief description of drawings]

FIG. 1 is a front view of a grafted seedling.

FIG. 2 is an enlarged view of an adhesive portion of a graft.

FIG. 3 is a layout view of a survival promotion device.

FIG. 4 is a front view showing an example in which grafted grafts are grafted.

FIG. 5 is a perspective view showing conventional cutting and joining (spring) of apple seedlings.

FIG. 6 is a perspective view showing the above-mentioned green branch cutting joint. 1 rootstock 2 scion 3 tray 4 holder 8 blower fan 10 survival promotion device 12 perforated plate 13 perforated plate 16 air duct 33 shelf frame

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[Procedure amendment]

[Submission date] June 5, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction method] Change

[Correction content]

Since carnations have low heat resistance, in normal climate cultivation, which is the most common type of cultivation in Japan, planting is done from May to June avoiding the summer harvest and from October to late May to early June. Harvested. At present, carnation grafting is not carried out, but the heat resistance and robustness are given to the scion by grafting carnation as a scion with dianthus that have excellent heat resistance and robustness. The harvesting period can be extended from June to July, and a new cropping pattern aimed at production during the summer shortage period in which only a small amount of cut flowers produced in cool regions are distributed is industrially useful. Example (2) When cuttings and grafts are carried out at the same time, as rootstocks, those with the same dianthus genus as carnations, affinity with heat, heat resistance, robustness and relatively thick stems, for example, Visiona decico (Also known as American Dianthus; Dianth
us barbatus L. ) And Fujina Desico (aka Hamanadeshiko; Dianthus japonicu)
s Thunb. ) And the like are preferably used. About 10 cm in length, the tip of vigorous buds was cut around September of the previous year, and the roots were sprouting and rooted, and when rooted, they were rooted in a No. 5 plastic pot or planter and the rootstock of the rootstock. Raise it to a large plant for use, and generate a large number of vibrant axillary buds. Approximately from February to April, the shoots that have grown to about 10 cm are picked up, and the stems at the positions where the internodes at the base have spread to about 2 cm are lengthened with a sharp blade (such as a razor blade made of stainless steel). Cut it so that its cross section is smooth by sharpening it so that it is about 30 degrees to the direction. The holder 4 is fitted and placed on the thus-cut tip. The scion may be any practical carnation variety to be cultivated, scraping the axillary buds that occur during the cultivation of virus-free (healthy) strains, and cutting the stem near the base with a sharp knife at an angle of 30 degrees to make a smooth section. Cut carefully so that The cut cuttings are inserted into the holes of the holder 4 in the same direction as the cutting surface of the rootstock, and the cutting surfaces are sufficiently pressure-bonded. After joining, insert the rootstock into the tray 3 made of sterilized vermiculite, etc., temperature 25 ° C, humidity 95%, light intensity 5000-1
It is stored in the survival promotion device 10 controlled at 0000 LX and a wind speed of 30 cm / sec, and cured for 7 to 15 days. When it is lived, it is taken out and raised in a normal nursery room. If it is desired to shorten the number of storage days in the device to some extent, a rooting promoter such as auxin may be applied to the soil in which the rootstock is inserted. If you want to shorten the number of days to store the stock, insert only the rootstock once and keep it in a normal greenhouse for about 10 days under high humidity conditions to fully root the rootstock. You may cut | disconnect with a sharp blade, carry out grafting operation, and store in the survival promotion apparatus 10 as already described there. With these, 95% or more of the live seedlings can be obtained.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction content]

Example (3) Cherry blossoms (rootstock is Kaido), magnolia (rootstock is fist), flower dogwood (rootstock is flower dogwood, flower color and other characteristics are normal, and so on), plum (base) Trees are plums, peaches (rootstocks are peaches), bayberry (rootstocks are bayberry), roubais (rootstocks are roubais) and other flowering trees, and mandarin oranges (rootstocks are citrus fruits such as Karachi), peaches (rootstocks) For rootstocks such as fruit trees such as peaches, persimmons (rootstocks are mamegaki), plums (rootstocks are plums), apricots (rootstocks are apricots), which take days to root during cutting, the rootstock Cut the green branches into 5 to 20 cm in length, and insert the green branches into a tray filled with soil as much as possible and darken it (it is enough to cover with black vinyl). Required for high humidity conditions. After a certain number of days (mostly one month or more), prepare a well-rooted one in advance, and re-sharpen the upper part when grafting. , Cut each desired cultivar on the top with a sharp cutter to a length of 2-10 cm from the tip of the bud,
The grafted seedlings are joined as a scion, and the joined state is held by the holder 4, and these grafted seedlings are carried in the tray as they are into a rooting promotion device in which the temperature, humidity, light amount, etc. are controlled and cured.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0022

[Correction method] Change

[Correction content]

[0022] Sweet potatoes, which continue to propagate vegetatively, are infected by a virus while they have been passaged for many years, which damages the color of the roots (potato), roughens the epidermis, reduces the commercial viability, and increases the vigor. It weakens and causes a decrease in yield. It has been widely put into practical use in recent years by improving the quality and increasing the yield by tissue-cultivating this and making it virus-free, but even if virus-free seedlings are once used, they can be subcultured by farmers. In the meantime, the virus re-infects the seedlings, so it is necessary to update the seedlings to new ones that are not contaminated as long as the effect is not diminished. The sweet potato virus test is based on the morning glory Ipomoea setosa
As a scion, it depends on the method of grafting on the rootstock of sweet potato, but with the conventional grafting method, it is difficult to carry out the grafting operation, the survival / curing method, and the mass treatment, and the survival rate is 40-50. Since it is only about 10%, it was extremely insufficient as a method for testing the actual condition of infection at the cultivation site by the virus-free passaged seedlings that have been widely spread by tissue culture. Example (4) When the vine length of sweet potatoes to be tested for the presence or absence of viral illness, or the degree thereof, was increased to 15 to 20 cm or more,
Cut the top and bottom of the stems with scissors with expanded leaves and 2 leaves, and insert into a polyethylene pot containing sterilized culture soil of No. 2 (diameter 5 cm), or a connecting hole tray of the same size, greenhouse or net room When the axillary buds grew from the axils of each node to 4 to 5 cm or more, the stem of the tip of the node that extended to 1 to 2 cm between the nodes was slanted at 30 degrees and a sharp blade (razor blade). etc)
Then, cutting is performed so that the cross section becomes smooth, and the holder 4 is inserted so that the tilt direction is aligned with the same direction as the cross section. For virus test plants that become spikes, for example, morning glory'Ipomoea setosa ', seeds that have been cut into a seedling vat with scissors in advance to facilitate water absorption are directly sown at intervals of about 8 × 3 cm, and at 30 ° C. Germinated for 3 to 4 days in a germinator of C, and the leaf height of one bud is about 3c.
When grown to about m, the hypocotyl 2-3 cm below the cotyledon,
Cut the rootstock at the same angle as the sweet potato, and insert it strongly into the hole of the holder 4 that was previously inserted into the sweet potato from above so that the inclination directions of the base and the spikes are aligned. The temperature of the seedling that has been contacted is 28 ° C, humidity is 95%, and light intensity is 5000 L
X, a survival promotion device 1 adjusted to a wind speed of 30 cm / sec
Carry it in 0 and let it cure for 4-5 days to fully root the joint. As a result, almost 100% of live seedlings can be obtained. When the vines have been settled, they are taken out into the greenhouse, the vines are grown according to the usual greenhouse management, and the presence or absence of virus contamination is judged by the yellowing symptom appearing in the true leaves of morning glory.

[Procedure correction 4]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Added

[Correction content]

FIG. 7 is a perspective view of a carnation graft.

FIG. 8 is a perspective view of a sweet potato cutting tree.

FIG. 9 is a perspective view of a sweet potato rootstock.

FIG. 10 is a perspective view of a spikelet (morning glory).

[Procedure amendment 5]

[Document name to be corrected] Drawing

[Correction method] Added

[Correction content]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10] ─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 30, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0020

[Correction method] Change

[Correction content]

Since carnations have low heat resistance, in normal climate cultivation, which is the most common type of cultivation in Japan, planting is carried out in May to June avoiding the summer harvest and from October to the end of May to early June of the following year. Harvested. At present, carnation grafting is not carried out, but the heat resistance and robustness are given to the scion by grafting carnation as a scion with dianthus that have excellent heat resistance and robustness. The harvesting period can be extended from June to July, and a new cropping pattern aimed at production during the summer shortage period in which only a small amount of cut flowers produced in cool regions are distributed is industrially useful. Example (2) When cuttings and grafts are carried out at the same time, as rootstocks, those with the same dianthus genus as carnations, affinity with heat, heat resistance, robustness and relatively thick stems, for example, Visiona decico (Also known as American Dianthus; Dianth
us barbatus L. ) And Fujina Desico (aka Hamanadeshiko; Dianthus japonicu)
s Thunb. ) And the like are preferably used. About 9 cm long, the tip of the vigorous buds was cut about 10 cm long in the previous year, and the roots were set by rooting, and when rooted, they were planted in No. 5 plastic pots or planters and used as the rootstock for the rootstock. As a large stock, grow a large number of vibrant axillary buds. Approximately February-April, buds that have grown to about 10 cm are collected and picked, and the stem at the position where the internodes at the base extend to about 2 cm is cut with a sharp knife (such as a razor blade made of stainless steel). Cut it so that the cross section becomes smooth by sharpening it so that it is about 30 degrees to the depth direction. The holder 4 is fitted on the sharpened tip. The scion may be any practical carnation variety to be cultivated, scraping axillary buds generated during the cultivation of virus-free (healthy) strains, and smoothing the cross section of the stem near the base with a sharp knife at an angle of 30 degrees. Cut carefully so that The cut cuttings are inserted into the holes of the holder 4 in the same direction as the cutting surface of the rootstock, and the cutting surfaces are sufficiently pressure-bonded. After joining, insert the rootstock into the tray 3 made of sterilized vermiculite, etc., temperature 25 ° C, humidity 95%, light intensity 5000-1
It is stored in the survival promotion device 10 controlled at 0000 LX and a wind speed of 30 cm / sec, and cured for 7 to 15 days. When it is lived, it is taken out and raised in a normal nursery room. If it is desired to shorten the number of storage days in the device to some extent, a rooting promoter such as auxin may be applied to the soil in which the rootstock is inserted. If you want to shorten the number of days required for storage, insert only the rootstock once and keep it under high humidity conditions in a normal greenhouse for about 10 days. You may cut | disconnect with a sharp blade, carry out grafting operation, and store in the survival promotion apparatus 10 as already described there. With these, 95% or more of live seedlings can be obtained.

[Procedure correction 4]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a front view of a grafted seedling.

FIG. 2 is an enlarged view of an adhesive portion of a grafted seedling.

FIG. 3 is a layout view of a survival promotion device.

FIG. 4 is a front view showing an example in which grafted grafts are grafted.

FIG. 5 is a perspective view showing conventional cutting and joining (spring) of apple seedlings.

FIG. 6 is a perspective view showing the above-mentioned green branch cutting joint.

FIG. 7 is a perspective view of a carnation graft.

FIG. 8 is a perspective view of a sweet potato cutting tree.

FIG. 9 is a perspective view of a sweet potato rootstock.

FIG. 10 is a perspective view of a spikelet (morning glory).

[Explanation of Codes] 1 rootstock 2 scrub 3 tray 4 holder 8 blower fan 10 survival promoting device 12 perforated plate 13 perforated plate 16 air duct 33 shelf

[Procedure amendment 5]

[Document name to be corrected] Drawing

[Correction target item name] Figure 7

[Correction method] Added

[Correction content]

[Figure 7]

[Procedure Amendment 6]

[Document name to be corrected] Drawing

[Correction target item name] Figure 8

[Correction method] Added

[Correction content]

[Figure 8]

[Procedure Amendment 7]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

[Correction method] Added

[Correction content]

[Figure 9]

[Procedure Amendment 8]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Added

[Correction content]

[Figure 10]

Claims (6)

[Claims] 1. A rooting promotion apparatus in which a seedling of a seedling that has been separately grown is joined to a rootstock of a seedling, and the joined portion is held in a joined state by a holder 4, etc., and then temperature, humidity, light amount, etc. are controlled. A method for grafting seedlings, which is carried into a seedling storage unit of the rooting promotion apparatus, and is grown until at least the joints become rooted while being cured while the air in the seedling storage unit of the rooting promotion apparatus is forced to flow. 2. A large number of grafted seedlings are placed on a plurality of stages of seedling storage sections of the seedling storage section, and the air in the seedling storage section is set in the lengthwise direction of the grafted seedlings while the temperature, humidity and light amount are controlled. A method for grafting seedlings, which comprises forcibly flowing in a substantially orthogonal direction and growing until the joint between the rootstock and the scion has grown. 3. The wind speed in the seedling storage section of the survival promotion device is set to 30.
The grafting method for seedlings according to claim 1, wherein the grafting method is controlled to -80 cm / sec. 4. A survival promoting device for curing a seedling having a rootstock of a seedling joined to a scion and holding the joint by a holder 4 and the like, and temperature, humidity, light amount, etc. in the survival promotion device. A graft graft curing device comprising a control device and a device for forcibly flowing the air in the seedling storage part of the survival promotion device. 5. A seedling storage part having a plurality of stages of seedling placement parts, a means for forcibly flowing the air in the seedling storage part in a direction substantially orthogonal to the length direction of the grafted seedling, and controlling the temperature and humidity. The graft graft curing device according to claim 4, comprising a lighting unit and a lighting unit. 6. The wind speed in the seedling storage portion of the survival promotion device is set to 30.
The graft graft curing device according to claim 4, which is controlled to -80 cm / sec.