Brassica campestris var. pekinensis Hongbaechoo as a new variety of plant and a method for breeding the same

Abstract

The present invention relates to methods of breeding Brassica campestris var. pekinensis Hongbaechoo grown by deriving interspecific hybrids with Hongssamchoo using Korean Cabbages as breeding plants and executing line acclimation test, self-incompatibility test and seed productivity test and reproduced by asexual propagation through tissue culturing method.

Claims

1. A Brassica campestris var. pekinensis Hongbaechoo grown from seed having Deposit Access No. KCTC 12410BP.

Description

DESCRIPTION OF DRAWINGS

(1) The above and other features of the present invention will now be described in detail with reference to certain exemplary embodiments thereof illustrated in the accompanying drawings which are given hereinbelow by way of illustration only, and thus are not limitative of the present invention, and wherein:

(2) FIG. 1 is a breeding genealogical chart showing the process until Pekinensis Hongbaechoo as a new variety of plant of the present invention could be obtained by collecting Korean Cabbages from 1999 to 2010;

(3) FIG. 2 is a perspective view of Pekinensis Hongbaechoo as a new variety of plant of the present invention; and

(4) FIGS. 3 to 4 are cross sectional views of Pekinensis Hongbaechoo as a new variety of plant of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(5) The technical and scientific terms used in the present invention shall be interpreted to having ordinary meanings understood by a person who has ordinary skill in the art to which the present invention pertains unless other definitions are not given to them.

(6) Brassica campestris var. pekinensis Hongbaechoo of the present invention was grown by deriving interspecific hybrids with Hongssamchoo using Korean Cabbages as breeding plants and executing line acclimation test, self-incompatibility test and seed productivity test and this vegetable may be reproduced by seed propagation using the above breeding methods or by asexual propagation through tissue culture.

(7) Pekinensis Hongbaechoo of the present invention has the following properties;

(8) (1) Leaves have somewhat oval and round shape;

(9) (2) Inner side and outer side of a midrib represent white color, pink color or red color for individual plant, respectively;

(10) (3) Heading types are circular shape and ellipsis shape;

(11) (4) Front side and rear side of lamina(chlorophyll) are dyed red in scarlet color, and sometimes purple color or black color may be represented;

(12) (5) The majority of veins show white color, and some veins represent pink color or red color;

(13) (6) Leaf margin has a few flat jogs and bends showing pink color or red color;

(14) (7) Size of heading is about to of common Korean Cabbages;

(15) (8) Phylloplane is glossy and mesophyll is crispy;

(16) (9) The degree of self-incompatibility is low. Seed vernalization types are shown as in radishes and Korean Cabbages; and

(17) (10) This vegetable may be used for kimchi, rice wrapping vegetable, green vegetable juice or salad.

(18) Hongssamchoo used in the present invention is developed under Korean Patent Registration No. 10-0876970 which is a prior patent case registered by the inventor; the plant is Brassica koreana Lee var. redleaf by mating Korean Cabbages Pyungchong No. 1 as mother with Korean Cabbages Byung-gogye as father to obtain one plant with 2n=40 of chromosome, mating Korean Cabbages Byung-gogye as mother with Korean Cabbages Pyungchong No. 1 as father to obtain another plant 2n=40 of chromosome, mating those plants obtained to get seed parent, irradiating radioactive rays, line acclimating and sowing immediately after fruitage wherein:

(19) 1. Leaves

(20) Morphology: somewhat oval and round shape.

(21) Petiole: inner side of petiole is depressed and outer side of petiole being protruded representing reddish color.

(22) Lamina: front side and rear side of lamina being dyed red in scarlet color, and sometimes purple color or black color being represented.

(23) Veins: having more conspicuous red color than flat portion.

(24) Margin: having a few flat jogs and bends showing red color.

(25) Phylloplane: glossy.

(26) 2. Self-incompatibility: weak

(27) 3. Seed Vernalization Type

(28) Pekinensis Hongbaechoo as a new variety of plant bred according to the present invention using Korean Cabbages as breeding plants may be used for rice wrapping vegetable, green vegetable juice and salad as well as kimchi as existing Korean Cabbages, and moreover, since its inner leaves represent beautiful reddish color, this vegetable would be highly useful in the industry thanks to its importance in agricultural economy. Hereunder, the present invention will be explained more specifically. However, the present invention may be implemented in various and different forms and not limited to the embodiments described here.

Embodiment 1

Breeding of a New Variety of Plant of the Present Invention

(29) This embodiment is an experiment executed from year 1999 until year 2010 when a new variety of plant of the present invention was obtained by collecting Korean Cabbages. In FIG. 1, a genealogical chart of Pekinensis Hongbaechoo of the present invention is illustrated.

(30) 1) 1999-2002: Stabilization of hybrid Korean Cabbages was planned by collecting Korean Cabbages (Line Numbers B55, B57 B58, B9104, B9129) as material for breeding a new breed and deriving an interspecific hybrid (F1) of Korean Cabbages and Hongssamchoo developed by the inventor, and several lines of plants representing pink color, red color, etc. having shapes of existing Korean Cabbages were obtained through backcrossing to F2 plants using Korean Cabbages provided in above.

(31) 2) 2002-2010: Pekinensis Hongbaechoo as a new variety of plant was obtained by conducting seed harvest test and regional adaptation test at the same time while executing line acclimation test, self-incompatibility test and seed productivity test annually on various lines of plants representing pink color, red color, etc. in shapes of existing Korean Cabbages. In the following Table 1, a breeding genealogical chart of breeding plants is shown.

(32) TABLE-US-00001 TABLE 1

Embodiment 2

Cultivation of a New Variety of Plant of the Present Invention

(33) A new variety of plant of the present invention Pekinensis Hongbaechoo obtained in the Embodiment 1 was cultivated according to common Korean Cabbages cultivation method.

(34) Conditions of cultivation are as the follows: This vegetable is same species as common Korean Cabbages but Pekinensis Hongbaechoo has a high heat resistance and relatively low growth rate. Since its cultivation period is longer than common Korean Cabbages by 715 days and requires heavy dressing, this vegetable shall be cultivated by increasing the amount of fertilizers such as nitrogen, calcium, boron, etc.

Embodiment 3

Properties of a New Variety of Plant of the Present Invention

(35) As shown in FIGS. 2 to 4, properties of a new variety of plant of the present invention Pekinensis Hongbaechoo are as follows:

(36) (1) Leaves having somewhat oval and round shape;

(37) (2) Inner side and outer side of a midrib representing white color, pink color or red color for individual plant, respectively;

(38) (3) Heading types being circular shape and ellipsis shape;

(39) (4) Front side and rear side of lamina(chlorophyll) being dyed red in scarlet color, and sometimes purple color or black color being represented;

(40) (5) The majority of veins showing white color, and some veins represent pink color or red color;

(41) (6) Leaf margin having a few flat jogs and bends showing pink color or red color;

(42) (7) Size of heading being about to of common Korean Cabbages;

(43) (8) Phylloplane being glossy and mesophyll is crispy;

(44) (9) The degree of self-incompatibility being low. Seed vernalization types being shown as in radishes and Korean Cabbages; and

(45) (10) This vegetable being used for kimchi, rice wrapping vegetable, green vegetable juice or salad.

Embodiment 4

Comparison of Pekinensis Hongbaechoo as a New Variety of Plant of the Present Invention and Korean Cabbages

(46) The results of the comparison of Pekinensis Hongbaechoo as a new variety of plant of the present invention and Korean Cabbages are shown in the following Table 2.

(47) TABLE-US-00002 TABLE 2 (Pekinensis (Korean Phenotypes Hongbaechoo) Cabbages) No Properties 1 2 3 4 5 6 7 8 9 No No 1 Outer Leaf: Stand Almost Horizontal 2 3 Shape upright upright 2 Plant: Height Small Middle Tall 3 6 3 Outer Leaf: Short Middle Long 3 5 Length 4 Outer Leaf: Narrow Middle Wide 5 3 Width 5 Outer Leaf: Round Broad Upended Narrow Longish 1 3 Width egg egg egg ellipsis 6 Outer Leaf: Stumpy Round Flat 2 3 Foreend shape shape shape 7 Outer Leaf: Jog Mild Middle Severe 5 5 8 Outer Leaf: Size Small Middle Big 3 5 of Jog 9 Outer Leaf: Scarlet Yellowish Green Gray 1 3 Color green green 10 Outer Leaf: Light Middle Deep 7 1 Intensity of Color 11 Outer Leaf: Exists None 9 1 Antocyanine pigment 12 Outer Leaf: Mild Middle Intense 7 3 Gloss 13 Outer Leaf None A few Middle Abundant Plentiful 7 5 (Petiole): Lobation 14 Midrib Wide Middle Narrow 3 1 15 Heading: Size Small Middle Big 1 5 16 Heading: Light Middle Heavy 1 5 Weight

Embodiment 5

Tissue Culturing of a New Variety of Plant of the Present Invention

(48) The method of tissue culture executed in the present invention is to sow seeds of Pekinensis Hongbaechoo in MS basal medium (plant growth regulator free) and differentiate it in a medium prepared with MS basal medium+NAA (Auxins)+BA (Cytokinins) using seed leaves with a bit of hypocotyl after one week. At this time, a medium added with 1-2 mg/mL of NAA and 6-8 mg/mL of BA was used.

INDUSTRIAL USABILITY

(49) Pekinensis Hongbaechoo as a new variety of plant bred according to the present invention using Korean Cabbages as breeding plants may be used for rice wrapping vegetable, green vegetable juice and salad as well as kimchi as existing Korean Cabbages, and moreover, since its inner leaves represent beautiful reddish color, this vegetable would be highly useful in the industry thanks to its importance in agricultural economy.