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Method for selective breeding celery hybrid using male sterile two-purpose line

A male-sterile, dual-purpose line technology, applied in the directions of botanical equipment and methods, applications, and plant genetic improvement, can solve the problems of low cost of seed production, long breeding cycle, and easy variety to degenerate, so as to improve the neatness of varieties. the effect of improving yield and quality, and enhancing the adaptability of varieties

Inactive Publication Date: 2005-10-05
天津市园艺工程研究所
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Problems solved by technology

The advantages of conventional varieties are easy seed production, high seed yield, and low cost of seed production. The disadvantages are that the uniformity between plants is poor, the variety is easy to degenerate, the heterosis cannot be fully exerted, the breeding cycle is long, and the breeder's Wisdom and toil cannot be protected

Method used

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Embodiment Construction

[0009] The method for cultivating celery hybrids using male sterile dual-purpose lines of the present invention is described in conjunction with examples.

[0010] The method for cultivating celery hybrids of the present invention is as follows: a male sterile plant with natural variation is found from many celery germplasm resource materials, its stamens are abnormal, no pollen is shed, and other traits are basically consistent with normal fertile plants, and it belongs to the celery type . Pair crossing with fertile plants of the same variety, the sterile rate of the offspring is 50%, and the sterility is 100%. After cytological and genetic research identification, it is proved that this variation is controlled by a nuclear recessive gene The male sterile dual-purpose line is continuously crossed with sterile plants and fertile plants in the dual-purpose line, and the dual-purpose line is purified and multiplied to obtain a sterile plant rate of 50% and a sterility degree of...

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Abstract

The present invention provides a method for culturing celery hybrid species by utilizing male sterility dual-purpose line. Said method utilizes steril plant in the male sterility dual-purpose line controlled by nuclear recessive gene as female parent, and selects several celery self-bred lines as male parent to respectively prepare hybridized combinations. Besides, said method adopts the following steps: in the initial stage of flowering identifying fertilizable plants in male sterility dual-purpose line and completely removing them, after the pollination is combleted; removing all the male parent plants, and collecting seeds from female parent plants so as to obtain the hybrid seeds with 10% purity.

Description

technical field [0001] The invention relates to a vegetable breeding method, in particular to a method for breeding celery hybrids using male sterile dual-purpose lines. Background technique [0002] Celery is native to the Mediterranean region. Due to its strong adaptability, it has been successfully introduced to many countries in the world and has become the main local vegetable. Celery has been introduced into my country for more than 2,000 years, but it was not until the 1970s that its cultivation area expanded rapidly, and my country became a major producer of celery. Because celery has the biological characteristics of large flowers and small flower organs, artificial detasseling is extremely difficult, and it is impossible to carry out large-scale artificial hybridization. Therefore, conventional varieties have been used in celery production for a long time, and there are no hybrids (such as Ba Zik et al., 1999). The advantages of conventional varieties are easy se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 高国训陆子梅靳力争顾自豪
Owner 天津市园艺工程研究所
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