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Method for transferring male sterile line of Chinese pink and cultivating propagating seeds and hybrid seeds

A technology of male sterile lines and carnations, applied in the field of plant cultivation, to achieve the effects of vigorous growth, stable sterility, and increased number of flowering branches

Inactive Publication Date: 2011-04-20
ZHENJIANG SUIHAN AGRI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports, at present Italy, Holland, Poland, Israel, the United States, etc. can only cultivate carnation hybrids through the conventional hybridization method using artificial emasculation, but this method is labor-intensive and time-consuming

Method used

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  • Method for transferring male sterile line of Chinese pink and cultivating propagating seeds and hybrid seeds
  • Method for transferring male sterile line of Chinese pink and cultivating propagating seeds and hybrid seeds
  • Method for transferring male sterile line of Chinese pink and cultivating propagating seeds and hybrid seeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Note: B stands for maintenance system

[0025] The main agronomic traits of the practically applicable male sterile lines of Dianthus chinensis obtained in this example are shown in Table 2.

[0026] Table 2

[0027] Cytoplasmic male sterile line Name

Plant height (cm)

Development (cm)

flowering way

Stem size (cm)

flower color

Number of days from planting to flowering (d)

Number of flowering branches per plant (pieces)

Male sterile plant rate%

Male sterility %

Flowering range

20708A

39.5

28× 28.5

gather flowers

5～7

Fuchsia

75

15.8

100

100

February-July

20710A

51.5

35.5× 36

gather flowers

6～8

deep red

80

18.7

100

100

February-July

20712A

53.8

37.1× 38.7

gather flowers

8～9

rose red

80

20.9

100

100

February-July

20714A

24.2

24.5× 26

u...

Embodiment 2

[0033]

[0034] The above-mentioned use of Dianthus male sterile lines to cultivate Dianthus hybrids should pay attention to the following technical points:

[0035] (1) Timely sowing and raising seedlings: generally in mid-to-late September. Nursery nurseries should choose fields with high terrain, easy drainage, and easy irrigation. After sowing, 2-3 leaf seedlings should be thinned once, and 6 true leaves should be transplanted to the field. During the growth period, pests and diseases should be prevented and controlled in time.

[0036] (2) Appropriate ratio of female parent to male parent: For planting, a plot with flat terrain, fertile land, and drainage and irrigation should be selected. Generally, under the condition of the same density, the row ratio of female parent to male parent is 4:1.

[0037] (3) Ensure spatial isolation distance and bee source for pollination: Dianthus is a cross-pollinated crop that is easy to hybridize with Dianthus crops. The isolation d...

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PUM

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Abstract

The invention relates to a pink male sterile line transformation and a cultivation method for the breed and coenospecies, belonging to the technical field of plant cultivation. The method uses the existing pink male sterile line as a female parent and at least two pink self compatible lines as male parents, and biparental cross is carried out respectively with the pink male sterile line as the female parent; a single plant mostly close to the economic character of the male parent is selected from the later generations of the biparental cross as the female parent and then backcrossed with the original male parent; the backcrossing is repeated, and after at least five generations of backcrossing and transformation, the pink male transformation sterile line is obtained. The pink male transformation sterile line obtained by adopting the method of the invention has the advantages of stable male sterility, better combining ability, and the like; by means of multiple self-crosses and line-crosses, most combinations show the heterobeltiosis of disease resistance, growing luxuriance, flowering branch increasing, colored flower, and the like; the labor and cost can be obviously saved.

Description

technical field [0001] The invention relates to a method for breeding and cultivating dianthus, in particular to a method for cultivating a male sterile line of dianthus and its breeding species and hybrid species, belonging to the technical field of plant cultivation. Background technique [0002] Dianthus chinensis L. is one of the famous traditional Chinese flowers. It is native to Northeast China, North China, the Yangtze River Basin and Southeast Asia, and is widely distributed. Because of its bright colors and long flowering period, it is often used as potted flowers (flower beds) and cut flowers. It is an important flower variety for beautifying urban and rural environments. [0003] Hybrid breeding is an important means of creating new varieties or types of flowers. It can not only combine the excellent characteristics and characteristics of two or more species and varieties, but also produce huge heterosis, improve the growth potential and stress resistance of flow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 潘跃平戴忠良姚悦梅秦文斌潘永飞张振超王建华肖燕刘小凤毛忠良吴国平
Owner ZHENJIANG SUIHAN AGRI