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Non-beading Chinese-cabbage male-sterile-Heibuyu 1 transformation method and its use

A technology of male sterile line and head cabbage, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc. The effect of strong disease, fast growth and low cost

Inactive Publication Date: 2003-03-26
蒋树德 +2
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Problems solved by technology

The cytoplasmic Ogura male sterile line of radish is a male sterile line that is not subject to temperature changes, and has the advantages of sterility rate and sterility uniformity of 100%. The cost can be greatly reduced in hybrid production, but its main defect Low temperature seedling yellowing, underdeveloped nectaries, etc., have not been used in production so far

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  • Non-beading Chinese-cabbage male-sterile-Heibuyu 1 transformation method and its use
  • Non-beading Chinese-cabbage male-sterile-Heibuyu 1 transformation method and its use
  • Non-beading Chinese-cabbage male-sterile-Heibuyu 1 transformation method and its use

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with examples:

[0025] First, we based on the advantages of male sterile lines of non-heading Chinese cabbage from Ogura sterile source (two lines, sterile plant rate, and sterility are all 100%) and major defects (plant yellowing), as well as the non-heading Chinese cabbage Germplasm resources, the transfer research of this subject is divided into two periods. In the early stage (1997-1999), the sterile source materials imported from Shenyang Agricultural University were used as the female parent, and the collected and sorted materials of excellent non-heading cabbage varieties were used as the male parent. The male parent is backcrossed for multiple generations at the same time. The main goal is to solve the yellowing problem of the plant, optimize the plant type, and improve the resistance. In the later period (1999-2001), the obtained non-yellowing sterile line (Black Sterility 1) was optimized to mak...

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Abstract

The present invention utilizes Ogura sterile source heading Chinese cabbage male sterile line, and utilizes extensive test cross method to screen maintainer line, and adopts the methods of mass sowing, multiple generation backcross and stringent selection to obtain black sterile 1 non-heading Chinese cabbage mate sterility line, then utilizes the black steril 1 to transfer breed the sterility line with different types, then utilizes it and other correspondent high-quality non-heading Chinese cabbage to breed a generation hybrid. Its sterile plant rate and sterile temp. are 100%, its production cost is low and its hybrid purity is 100%, and its yield is high, quality is good and disease resistance is strong.

Description

Technical field [0001] The present invention relates to a method for transferring a male sterile line of non-heading Chinese cabbage and the application of the result of the transformation in hybrid seed production of non-heading Chinese cabbage, and specifically relates to a male sterile line of non-heading Chinese cabbage-Black Sterility 1 The method of breeding and the use of black sterile 1 in the preparation of a first-generation hybrid of non-heading Chinese cabbage. Background technique [0002] A large number of studies have shown that non-heading Chinese cabbage has obvious heterosis, but the lack of optimized new seed production technology has greatly restricted the utilization of its heterosis. At present, hybrids of non-heading Chinese cabbage mainly use self-incompatible lines to prepare first-generation hybrids, that is, the parent material of non-heading Chinese cabbage is selfed for multiple generations, so that the parent material can ac...

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Application Information

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IPC IPC(8): A01H1/02
Inventor 蒋树德陈虎根杨雪梅
Owner 蒋树德