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Application of Ethiopian mustard in breeding of Brassica napus definite inflorescence lines

A technology of Brassica napus and inflorescence, applied in application, seed coating/seed dressing, botanical equipment and methods, etc., can solve the problems that rape varieties are not suitable for mechanized operation, increase the ineffective consumption of rapeseed biomass, and achieve thousand-grain weight The effect is consistent with the increase of yield per plant, reduction of mechanical loss rate, and maturity of siliques

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems that the existing rapeseed varieties are not suitable for mechanized operation, the formation of infinite inflorescences in the late growth stage of rapeseeds increases the ineffective consumption of rapeseed biomass, etc., thereby providing a limited inflorescence maintenance system of Ethiopian mustard in Brassica napus , male sterile line, restorer line and hybrid breeding

Method used

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  • Application of Ethiopian mustard in breeding of Brassica napus definite inflorescence lines
  • Application of Ethiopian mustard in breeding of Brassica napus definite inflorescence lines
  • Application of Ethiopian mustard in breeding of Brassica napus definite inflorescence lines

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Embodiment 1

[0044] All the breeding processes of the present embodiment are carried out under natural conditions;

[0045] This embodiment provides a kind of application of Ethiopian mustard in the selection and breeding of Brassica napus limited inflorescence maintainer line, and the selection method is specifically as follows:

[0046] In March 2010, in Nanchang, Jiangxi Province, 1 copy of E. chinensis was used as the female parent, and 1 copy of the Brassica napus line with unlimited inflorescences (Zhongshuang 11) was used as the male parent. Crossing was carried out, and the plants with limited inflorescence traits were screened to obtain 1 hybrid offspring F1;

[0047] In July 2010, in Xining, Qinghai, one copy of hybrid F1 was used as the female parent, and one copy of Zhongshuang11 was used as the male parent, and the first backcross was carried out, and 5 backcross offspring were obtained;

[0048] In March 2011, in Nanchang, Jiangxi, 5 copies of backcross offspring were used a...

Embodiment 2

[0072] In the breeding process of this embodiment, the daily light time of the plants is 15h, and when the light is insufficient, light is used to irradiate, and the light intensity is controlled to be the same as natural light;

[0073] This embodiment provides a kind of application of Ethiopian mustard in the selection and breeding of Brassica napus limited inflorescence maintainer line, and the selection method is specifically as follows:

[0074] In March 2010, in Nanchang, Jiangxi Province, 1 copy of E. chinensis was used as the female parent, and 1 copy of the Brassica napus line with unlimited inflorescences (Zhongshuang 11) was used as the male parent. Crossing was carried out, and the plants with limited inflorescence traits were screened to obtain 1 hybrid offspring F1;

[0075] In July 2010, in Xining, Qinghai, one copy of hybrid F1 was used as the female parent, and one copy of Zhongshuang11 was used as the male parent, and the first backcross was carried out, and ...

Embodiment 3

[0098] All the breeding processes of this embodiment are carried out under natural conditions;

[0099] This example provides an application of Ethiopian mustard in the selection and breeding of limited inflorescence maintainer lines of Brassica napus. Before planting, the seeds of Ethiopian mustard are soaked in an aqueous solution of potassium permanganate with a mass fraction of 0.5%, and then dried in the air after 6 hours. Dry, the breeding method is as follows:

[0100] In March 2010, in Nanchang, Jiangxi Province, 1 copy of E. chinensis was used as the female parent, and 1 copy of the Brassica napus line with unlimited inflorescences (Zhongshuang 11) was used as the male parent. Crossing was carried out, and the plants with limited inflorescence traits were screened to obtain 1 hybrid offspring F1;

[0101] In July 2010, in Xining, Qinghai, one copy of hybrid F1 was used as the female parent, and one copy of Zhongshuang11 was used as the male parent, and the first back...

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Abstract

The invention belongs to the technical field of plant breeding methods, and concretely relates to an application of Ethiopian mustard in the breeding of a maintainer line, a sterile line, a restorer line and a hybrid of Brassica napus definite inflorescence. Ethiopian mustard used as a female parent and a Brassica napus indefinite inflorescence used as a male parent are hybridized to obtain a hybrid progeny, the hybrid progeny used as a recurrent parent and the Brassica napus indefinite inflorescence line used as a recurrent male parent are continuously backcrossed and selfed to obtain the maintainer line of the Brassica napus definite inflorescence, and the Ethiopian mustard is also applied to the breeding of the Brassica napus definite inflorescence sterile line, the Brassica napus definite inflorescence restorer line and the Brassica napus definite inflorescence hybrid. The Brassica napus definite inflorescence lines provided by the invention solve a problem that the infinite inflorescence increases the inefficient consumption of rape biomass, reduce the mechanical loss rate, improve the thousand-kernel weight of main shaft and ramose silique grains, the yield of per plant and the yield and significantly reduce the lodging rate, so new species are provided for the entire mechanized operation of rape.

Description

technical field [0001] The invention belongs to the technical field of plant breeding methods, and in particular relates to the application of Ethiopian mustard in the breeding of limited inflorescence maintainer lines, sterile lines, restorer lines and hybrids of Brassica napus. Background technique [0002] Rapeseed is an important oil crop in my country. At present, conventional rapeseed varieties have infinite inflorescences and have a long flowering period. On the one hand, the maturity time of siliques at different levels of rapeseed plants is inconsistent. Often, the lower siliques have matured and turned yellow, and the upper siliques have not yet matured. The phenomenon of maturity; harvesting too early, the upper siliques are immature, which affects the yield formation; harvesting too late, the lower siliques are easy to crack, and the loss of mechanical harvesting is large, which seriously affects the mechanized harvesting of rapeseed; on the other hand, in the late...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/06A01H1/02A01H1/04
CPCA01C1/06A01H1/02A01H1/04
Inventor 涂玉琴戴兴临张洋辛佳佳汤洁涂伟凤万鹏
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