Sweet sorghum breeding method

A technology for sweet sorghum and seeds, which is applied in the field of sweet sorghum breeding using heavy ion mutagenesis breeding technology, can solve the problems of high cost, accelerated breeding process, long cycle, etc. Effect

Inactive Publication Date: 2015-07-22
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Description
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  • Application Information

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Problems solved by technology

To solve the shortcoming of long period and high cost of a

Method used

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Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1: a kind of sweet sorghum breeding method, its main feature is the following steps:

[0028] (1) Heavy ion beam irradiation:

[0029] Use a heavy ion accelerator to provide a heavy ion beam of carbon or oxygen or argon, at an energy of 80-100MeV / μ, an irradiation dose of 80-120Gy, and a dose rate of 20-30Gy / min, and treat sweet sorghum seeds at the vertical irradiation terminal For irradiation treatment, the irradiation time is 4-6 minutes; after irradiation, the germination test and field plot test of control seeds and irradiated seeds can be carried out.

[0030] (2) Mutant screening:

[0031] According to the breeding goals of early maturity, high yield, high sugar content or salt resistance or cold resistance, select different climates or different altitudes and soil conditions, sandy desert or saline-alkali to obtain mutants with different needs, so as to obtain irradiation that meets the breeding goals Seeds (germplasm resources);

[0032] After the...

Embodiment 2

[0037] Example 2: A saline-alkali-resistant sweet sorghum breeding method, in the screening of the saline-alkali-resistant mutants described in step (2) screening of mutants, saline-alkali land, low pH 7.1-8.5, moderate saline-alkali land pH 8.5- 9.5 Planting irradiated seeds.

[0038] All the other steps are the same as in Example 1.

Embodiment 3

[0039] Example 3: A cold-resistant sweet sorghum breeding method, in the step (2) mutant screening, the cold-resistant mutants are selected to plant irradiated seeds at an altitude of 2300 meters or more.

[0040] All the other steps are the same as in Example 1.

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Abstract

The invention belongs to the technical field of agriculture, relates to a sweet sorghum breeding method, in particular to a method for breeding sweet sorghum by using a heavy ionmutation breedingtechnique. The sweet sorghum breeding method is mainly characterized by comprising the following steps: (1) performing heavy ion beam radiation, namely, providing carbon, oxygen or argon heavy ion beams by using a heavy ion accelerator, and performing radiation treatment on sweet sorghum seeds at a vertical radiation terminal for 4-6 minutes under the conditions that the energy is 80-100MeV/mu, the radiation dosage is 80-120Gy and the dosage rate is 20-30Gy/minute; (2) performing mutant screening; (3) performing mutant detection; (4) performing hybridized combination optimization. Due to the adoption of the breeding method provided by the invention, after heavy ion radiation, mutant planting resources which are good in precocity property, high in sweet, high in yield and resistant to adversity can be obtained, after being planted for M3-M4 generations, the mutants can be stabilized, and the efficiency of mutant screening, mutant detection and hybridized combination blending is increased by more than 10% when being compared with that of a single crossbreeding method.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and relates to a method for breeding sweet sorghum, in particular to a method for breeding sweet sorghum by using heavy ion induced breeding technology. Background technique [0002] The national "Twelfth Five-Year Plan" mentioned that the application and development of non-grain crop sweet sorghum is a priority development direction; the development of alcohol and yeast series products using sweet sorghum as raw materials is in line with the development ideas of the biological industry of circular economy, clean production and environmental protection ;In the entire industrial chain of sweet sorghum industrialization, to solve the problem of stable supply of high-quality raw materials, the stability of the output and quality of sweet sorghum stalks is the lifeline of the two focuses of planting and processing. The development of the sweet sorghum circular economy industry has great strategic...

Claims

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Application Information

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IPC IPC(8): A01H1/06A01H1/04A01H1/02
Inventor 董喜存李文建刘瑞媛金文杰顾文婷
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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