JPH07308122A - Method for breeding plant - Google Patents

Abstract

PURPOSE:To provide a method for breeding a plant by which the cell fusion of plural varieties having different characters is carried out according to a grafting method to raise a new variety of the plant. CONSTITUTION:This method for breeding a plant is to partially cut each of a stock 1 and a grafting scion 3 having different characters, mutually mate the cut faces thereof, fix both, take root, grow a cell in the grafted part, indicate a tumorous buildup on the surface thereof, then cut the part of the grafting scion 3 protruding from the tumor 6 and promote the fusion of both varieties in the interior of the tumor 6 so as to germinate a new plant having the characteristics of both.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plant breeding method by grafting.

[0002]

2. Description of the Related Art Conventionally, as a method for improving plant varieties, for example, by crossing between selected plant varieties, the desired trait was provided from among individuals produced in the first generation of hybrids or in subsequent generations. A typical cross breeding method is to select one and raise it to a new variety. However, in recent years, West Germany succeeded in fusing tomatoes and potatoes, which should not be able to be crossed originally, with a fusion inducer, and succeeded in raising pomato with both characteristics. There is a remarkable progress, and it is expected that an innovative plant breeding that cannot be obtained by the cross breeding method will be obtained.

[0003]

In view of the above situation, the present invention provides a method for improving plant varieties in which a plurality of varieties having different traits are fused by a novel grafting method to grow new varieties of plants. Its purpose is to provide.

[0004]

[Means for Solving the Problems] To achieve the above object, a method for improving a variety of plants according to the present invention is to cut a part of each of a rootstock and a spikelet having different traits, and cut each other. When the cells in this graft grow and show a bump-like bulge on the surface, the spikes protruding from this bump are cut to promote fusion of both species inside the bump. , A new plant having both characteristics is germinated.

[0005]

The plant breeding method according to the present invention will be described below. Part of each of the rootstock and the spikelet having different traits is cut, and the cut surfaces of the rootstock and the cuticle are fixed so that the roots can survive. Then, when the cells in the grafted portion grow and show a bump-like bulge on the surface, the spiked portion protruding from the bump is cut. This promotes the fusion of both varieties inside the knob, resulting in the germination of new plants with both characteristics.

[0006]

EXAMPLES The plant breeding method according to the present invention will be described below based on an example of implementation. The target plant for cultivar improvement was Bougainvillea of the family Osylliumaceae, and two varieties of rose pink and Jamaica white were selected. Rose pink is a monochromatic type with bracts in pink, and Jamaica White is a monochromatic type with bracts in white. As shown in FIGS. 1 to 5, first, rose pink is used as a rootstock 1 and cuts 2 are made. Then, the cuticle 3 cut from Jamaica White is inserted into the cut 2 portion, and the cut surfaces 4 and 5 of the cut pieces 3 are aligned and fixed to make them live. Next, when the cells in the grafted portion grow and show a bump-like bulge on the surface, the spiked portion protruding from the bump 6 is cut. This promotes cell fusion of both species within the aneurysm during the growth period of 1 to 2 years, and as a result, the bracts blooming on the branch 7 grown from the newly emerged buds are pink 8, white 9 , 3 colors of the pink cover ring 10 appeared on the white. still,
In the above-mentioned Examples, the method of the present invention was tried on two varieties belonging to the same plant species, bougainvillea, having different traits, but not only between closely related species but also between distantly related plants and sexually incompatible. It can also be applied between plants showing.

[0005]

INDUSTRIAL APPLICABILITY As described above, the plant breeding method according to the present invention is capable of growing a new plant variety by fusing a plurality of varieties with different traits by a novel grafting method. The effect can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a procedure of a plant variety improving method of the present invention.

FIG. 2 is an explanatory view showing the procedure of the plant breeding method of the present invention.

FIG. 3 is an explanatory view showing the procedure of the plant variety improving method of the present invention.

FIG. 4 is an explanatory view showing the procedure of the plant breeding method of the present invention.

FIG. 5 is an explanatory view showing the procedure of the plant variety improving method of the present invention.

[Explanation of symbols]

 1 Rootstock 2 Notch 3 Next spike 4 Cut surface 5 Cut surface 6 Nodule 7 Branches 8 Pink (bract) 9 White (bract) 10 White ring (bract)

Claims (1)

[Claims] 1. A part of each of a rootstock and a spikelet having different traits is cut, and the cut surfaces of the rootstock are fixed together and allowed to grow, and the cells of the grafted part grow, and a bump-shaped bulge is formed on the surface. , The cutting part protruding from this nodule was cut, the fusion of both species was promoted inside the nodule, and a new plant having both characteristics was germinated so that the plant breed improvement. Method.