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

A technology of male sterile lines and hybrids, which is applied in the field of plant cultivation, can solve problems such as time-consuming and labor-consuming, and achieve the effect of increasing the number of flowering branches, normal flowering and fruiting traits of plants, and vigorous growth

Inactive Publication Date: 2008-12-17
ZHENJIANG SUIHAN AGRI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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
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Effect test

Embodiment 1

[0021] For this example see figure 1 , in order to obtain a male sterile line of Dianthus male with stable sterility, normal plant growth and development, normal flowering and fruiting, excellent and stable economic traits, and strong combining ability, a continuous backcrossing method was adopted to optimize the existing male Dianthus male The male sterile line 20480A or 20468A was used as the female parent, and one of the existing high-generation self-compatibility lines 20708B, 20710B, 20714B, 20715B, and 20718B with stable traits and strong combining ability was selected as the male parent for paired crosses; Select the sterile and complete single plant closest to the male parent's economic traits among the hybrid offspring as the female parent, and then backcross with the original male parent; such continuous backcrossing for multiple generations (for example, five generations) until the main economic traits are similar to those of the backcross. Dianthus male sterile lin...

Embodiment 2

[0031] The method for obtaining the male sterile line of Dianthus in this embodiment is the same as that in Example 1. On this basis, this embodiment further utilizes the male sterile line of Dianthus to obtain its hybrid seeds, see figure 2 , at first the male sterile line of Dianthus as the female parent and the self-compatibility line as the male parent of the hybrid are sown in autumn; The plants are respectively transplanted to a breeding field, preferably a net shed, at a row ratio of 4:1; when the flowers are to be bloomed, honey bees are put into them for pollination; For the preparation of hybrid seeds. The hybrid combination prepared in this example has strong growth vigor, many flowering branches, and obvious heterosis. The comparison of its economic traits with the male parent is shown in Table 3.

[0032] table 3

[0033]

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

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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 flowe...

Claims

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Application Information

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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
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