Application of Ethiopian Brassica in the Breeding of Brassica napus Lines with Limited Inflorescences

A technology of Brassica napus and inflorescence, which is applied in the fields of application, seed coating/seed dressing, plant genetic improvement, etc., can solve the problems of increasing the ineffective consumption of rapeseed biomass and unsuitable for mechanized operation of rapeseed varieties, and achieve thousand-grain weight and unit weight. The effect of increased plant yield, increased germination rate, and consistent maturity of siliques

Active Publication Date: 2021-06-08
江西省农业科学院作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 Brassica in the Breeding of Brassica napus Lines with Limited Inflorescences
  • Application of Ethiopian Brassica in the Breeding of Brassica napus Lines with Limited Inflorescences
  • Application of Ethiopian Brassica in the Breeding of Brassica napus Lines with Limited Inflorescences

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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 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. The finite inflorescence maintainer of Brassica napus is used as the female parent, and the inflorescence of Brassica napus is used as the male parent. Hybrid offspring are obtained, which are used as the non-recurrent female parent, and the inflorescence of Brassica napus is used as the recurrent male parent. , after continuous backcrossing and self-crossing, the limited inflorescence maintainer line of Brassica napus is obtained, and it is used in the selection and breeding of the limited inflorescence male sterile line, the limited inflorescence restorer line and the limited inflorescence hybrid of Brassica napus. The finite inflorescence strain of Brassica napus provided by the invention solves the problem of ineffective consumption of rapeseed biomass increased by infinite inflorescences, reduces the mechanical loss rate, improves the 1000-grain weight of main shaft and branched silique seeds, yield per plant and yield, and at the same time, the lodging rate is remarkable Reduced, providing new varieties for the whole mechanized operation of rapeseed.

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 Patents(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
Owner 江西省农业科学院作物研究所
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