KR100303499B1 - New variety of plant cymbidium Nobuko - Google Patents

Abstract

PURPOSE: Provided is a 'Nobuko' plant belonging to a new variety of a tropical orchid Cymbidium, which supplies a superior new variety of a tropical orchid Cymbidium in red color to customers at low price in large quantities by crossover of conventional tropical orchid Cymbidium as parent generation. CONSTITUTION: A germ free seed out of juvenile form seeds is germinated and then an apex of a stem is cut and taken. Thereafter, the apex of a stem is cultivated. Finally, a cultivated Mericlone is subcultured through 3 generations. A juvenile form seed of Cymbidium is germinated under germ free state in a modified culture medium, in which a ratio of ions of SO4-2m Ca+2, NH4+1 is reduced while a ratio of ions of K+1 is increased and raised by fertilizing management. The juvenile form seed is obtained by crossing a 958-8 line and a Florence line as parent generation. The seed is sterilized in 10Ca(CLO)2 solution for 20 minutes, soaked in distilled water, and precipitated by using a magnetic stirrer.

Description

New variety of plant cymbidium Nobuko

The present invention relates to a new egg 'Cymbidium' new breed 'Nobuco' plants. More specifically, the present invention relates to a plant 'Nobuko' belonging to a new breed of poultry symbidium, which is fixed as an excellent new breed for differentiation having red color.

The origin of the symbidium called the egg eggs is a ring species native to the highlands (800-1,500m) of tropical Southeast Asia, such as northern India, Burma, Thailand and Vietnam. They are bred between the native species or by breeding these species with Japanese and Chinese species.

On the other hand, mass production of symbidium is possible by tissue culture techniques, in particular by the technology of nutrient system, that is, mericlone, which can be obtained by extracting, culturing and growing apical meristem.

In particular, symbidium can be mass-produced by the mericlone technology, and it is easy to cultivate new varieties, and as a result, it is possible to satisfy consumer demand by low price. Accordingly, an object of the present invention is to provide a large amount of new varieties of symbidium which can be satisfied by the consumer at low cost.

The above object of the present invention is to select the existing egg symbidium as the parent and the bundling and hybridization and color (flower), leaf posture (plantation), flowering time (開花 期) aseptic seed species and other new varieties After cultivation by germination, the nutrients, especially spermatozoon, were extracted, tissue cultured, and subcultured.

1 is a photograph showing the phenotype of flowers, leaves, stems, etc. of plants belonging to a new breed of poultry symbidium of the present invention.

The present invention provides aseptic seed germination step of live seed; Corrective cutting step; Fertility culture step; It consists of three stages of passage of cultured Mericlone.

Hereinafter, the specific configuration and operation of the present invention will be described with reference to Examples, but the scope of the present invention is not limited only to these Examples.

Example 1

Germination and Growth of Sterile Seeds Crossed 958-8 (♀) × Florence (♂)

To germinate symbiotic seedlings, Nudson C medium was selected and germinated aseptically in fertilized medium with lower proportion of SO ₄ ^-2 , Ca ⁺² , NH ₄ ⁺¹ ions and higher proportion of K ⁺¹ ions. The embryo was managed by the method to grow.

Seeds were selected from 958-8 (No Name) strains as the parent and Florence strains as the subordinates.

Sterilization of the seedling was sterilized in 10Ca (CLO) ₂ solution for 20 minutes and then put in sterile water to use the seed precipitated using a magnetic stirrer.

Example 2

Composition of the initial tissue culture badge

Unlike the seed culture medium of Example 1, in order to promote the initial growth of fertilization or fertilization of fertilization (莖 頂) was used as a medium composition as follows.

ingredient content KNO ₃ 0.52 g / L CaHPO ₄ 0.20 g / L KH ₂ PO ₄ 0.25g / L (NH ₄ ) ₂ SO ₄ 0.50 g / L MgSO _{4 7} H ₂ O 0.25g / L Fe ₂ (C ₄ H ₄ O ₆ ) ₃ 0.30 g / L Tryptone 2 g / L Sudang 20 g / L Agar 7.5g / L

For fertility extraction medium, 8 g / L agar is added to the growth of PLB. pH was set at 5.5.

Example 3

Proliferation of Protoplasts (PLB)

The following KC medium was used for proliferation of protoplasts.

ingredient content KH ₂ PO ₄ 0.25g / L Ca (NO ₃ ) ₂ 4H ₂ O 1.00 g / L (NH ₄ ) ₂ SO ₄ 0.5g / L MgSO _{4 7} H ₂ O 0.25g / L FeSO ₄ 7H ₂ O 0.025 g / L MnSO ₄ 4H ₂ O 0.0075 g / L Sudang 20 g / L Agar 7.5g / L

Example 4

Induction and rooting of new plant species of the present invention

As a medium for inducing and rooting new varieties of the present invention, Knudson (1946) medium below was used, and activated carbon was added to promote rooting rate and ground and underground growth.

ingredient content KH ₂ PO ₄ 0.25g / L Ca (NO ₃ ) ₂ 4H ₂ O 1.00 g / L (NH ₄ ) ₂ SO ₄ 0.5g / L MgSO _{4 7} H ₂ O 0.25g / L FeSO ₄ 7H ₂ O 0.025 g / L MnSO ₄ 4H ₂ O 0.0075 g / L ZnSO ₄ 4H ₂ O 0.0033 g / L CuSO ₄ 0.0004 g / L Sudang 20 g / L Agar 7.5g / L

The media composition was prepared 100 times the liquid and stored in the refrigerator, but Ca ^{+ 2} and SO ₄ ^-2 , Mg ⁺² and PO ₄ ^- form an insoluble precipitate was added when used.

On the other hand, when shoots were differentiated from protoplasts, they were transplanted into 300mL Flasks for seedlings, but seedlings were fixed for three generations by seedlings based on 20 weeks in 300mL flasks and 40 weeks in 500mL flasks. The horticultural characteristics of 'Nobuko' plants are shown in the following table.

Agency Characteristics Phenotype leaf Leaf length Around 70㎝ Number of leaves 9--11 Flower Number of flowers 18 to 21 Length of stalk 50 to 80 cm Flower color Red Flower size 3.5cm in width, 4.0cm in length Tilting flower 2 Flowering period November-January Use of varieties Eruption Disease resistance Class B

Example 5

Purification of new varieties of plants

Seedlings that are about 15cm old after passage for 3 months are poured into the Flask, and the medium is removed by tweezers, and the medium is removed with distilled water.

Purifying conditions were set to 5,000 to 10,000 lux, which is about 10 of natural light, so that the atmospheric humidity was shaded and planted in a well-ventilated basket, and 70 to 80 was kept to prevent drying.

The appearance of the entire flowering of the new novel 'Nobuco' plant of the present invention is shown in Figure 1, showing a red distinctive from the existing egg system.

As described above, the present invention has been described as an embodiment, the present invention is very useful invention for plant new breed growth industry because it has the effect of providing a plant belonging to a new breed of Symbidium excellent egg for differentiation having a red color.

Claims (1)

Aseptic germination of existing 958-8 (♀) × Florence (♂) strains is carried out, followed by extraction of the fertilization, proliferation of protoplasts (PLB), and when shoots erupt from the protoplasts, Flask 'Nobuco' plants belonging to the poultry symbidium with the following horticultural characteristics, characterized in that the seeding and seeding in a breeding by three or more subcultures. 1) Length of leaves: around 70㎝ 2) Number of leaves: 9-11 3) Number of flowers: 18 ~ 21 4) Length of stalk: 50∼80㎝ 5) Flower Color: Red 6) Flower Size: 3.5cm wide and 4.0cm long 7) tilting the stalk: 2 8) Blooming season: November to January 9) Use of varieties: for differentiation 10) Disease resistance: Class B