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Method for efficiently developing sorghum sterile line

A sterile line and sorghum technology, applied in the field of sorghum genetics and breeding, can solve the problems of limited genetic diversity, inability to improve target traits, lack of genetic resources, etc. Effect

Inactive Publication Date: 2019-01-18
CROP RES INST SHANDONG ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited genetic diversity of the existing maintainer lines, there are some traits that urgently need to be improved in production. Due to the lack of genetic resources, it is impossible to effectively improve the target traits by crossing the existing maintainer lines

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 Breeding of compact sorghum maintainer lines and sterile lines

[0022] 1. Breeding of compact sorghum maintainer line (Btx623ERC4)

[0023] (1) Select about 500 plump, complete and healthy seeds of the purified sorghum maintainer line Btx623. Treat with EMS (ethyl methanesulfonate) at concentrations of 0.10%, 0.15%, 0.20%, 0.25% and 0.30% for 12 hours. After the treatment, the seeds were rinsed with tap water for 2 hours, and then sown in the experimental field of the Crop Institute of Shandong Academy of Agricultural Sciences. Before heading and flowering, each individual plant was bagged and self-crossed to obtain M 1 generation seeds.

[0024] (2) M to be harvested 1 The seeds of each individual plant are planted into panicle rows, about 200 rows, 10-30 trees in each row, and all individual plants in each panicle row are bagged and self-crossed to obtain M 2 generation seeds.

[0025] (3) will M 2 Mix the seeds of all individual plants in each ear ro...

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PUM

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Abstract

The invention provides a method for efficiently developing a sorghum sterile line. Seeds of a sorghum maintainer line are mutagenized through EMS with different concentrations, and M0 generation seedsare obtained; as for later generations, individual-plant head progeny rows which accord with breeding objectives and are consistent in character performance are obtained as a new maintainer line through bagging selfing selection; the new maintainer line and the sterile line are pollinated and cross-fertilized, and BC1 generation seeds are obtained; and through recurrent selection of several generations, individual plants with consistent objective character performance of the head progeny rows are selected as a new sterile line.

Description

technical field [0001] The invention belongs to the field of genetic breeding of sorghum, and in particular relates to a method for efficiently creating sterile lines of sorghum. Background technique [0002] Sorghum is a C4 plant with strong heterosis, high biomass, and multiple stress resistance. Sorghum is widely used, especially as a high-quality raw material for brewing liquor, processing livestock grain and silage, and producing fuel ethanol. Planting sorghum on marginal land, barren, waterlogged and saline-alkali land can not only obtain a certain yield, but also improve the ecological environment. Therefore, promoting the planting of sorghum hybrids on a large scale can greatly improve the production efficiency of my country's land, reduce the cost of raw materials for brewing, animal husbandry and biomass energy enterprises, and promote my country's agricultural structural supply-side reform. [0003] Sorghum hybrids have strong heterosis, and the commonly used me...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/06
CPCA01H1/02A01H1/06
Inventor 王海莲张华文管延安王润丰刘宾杨延兵秦岭陈二影黎飞飞
Owner CROP RES INST SHANDONG ACAD OF AGRI SCI
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