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Breeding method for anti-G type orobanche coerulescens sunflower restoring line 1808R

A technology of sunflower and restorer line, applied in the field of plant genetics and breeding, can solve the problem that sunflower cannot be well resistant to G-type strain, and achieve the effects of ensuring high pathogenicity intensity, ensuring high resistance to strain and shortening the breeding process.

Inactive Publication Date: 2018-11-06
ECONOMIC CROPS RES INST XINJIANG ACAD OF AGRI SCI
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  • Abstract
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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a breeding method for sunflower restorer line 1808R resistant to G-type Liedang.

Method used

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  • Breeding method for anti-G type orobanche coerulescens sunflower restoring line 1808R
  • Breeding method for anti-G type orobanche coerulescens sunflower restoring line 1808R
  • Breeding method for anti-G type orobanche coerulescens sunflower restoring line 1808R

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Embodiment

[0034] (1) Physiological race identification of Liedang seeds: Utilize the identification host (a set of sunflower materials containing different resistance genes to Liedang) imported from abroad, adopt the method of inoculating Liedang in a culture cup, and carry out physiological tests on the collected Liedang seeds. Race identification; according to the identification of the host's anti-sensitivity response to Liedang, the corresponding table can determine the physiological race type of the Liedang sample; see Table 1 below; See the training process and judgment method Figure 1-3 ;

[0035] figure 1 It means that the culture cup is cultivated under the conditions of temperature 25-28°C, light intensity 8000-10000Lux, light duration 14h / d, and the soil humidity in the culture cup is kept at 60%-70%. When identifying the host and growing 4 leaves, the seedlings are fixed, and 1 seedling is reserved for each cup; figure 2 It means that 45 days after the emergence of the i...

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Abstract

The invention discloses a breeding method for an anti-G type orobanche coerulescens sunflower restoring line 1808R and relates to the technical field of plant genetic breeding. According to the breeding method disclosed by the invention, an oily sunflower material XR44R of G-type microspecies sunflower orobanche coerulescens and immune G-type orobanche coerulescens is utilized; an existing orobanche coerulescens sunflower material 3603R is improved by methods of hybridization transferring, backcross, selfing, a technology of identifying orobanche coerulescens resistance of sunflower by synchronous tracking and the like, and further a developed orobanche coerulescens-resisting (G-type microspecies) sunflower restoring line 1808R is cultured. The species has a good effect of resisting G-typeorobanche coerulescens and lays solid foundation for orobanche coerulescens-resisting breeding work of sunflowers in China.

Description

technical field [0001] The invention relates to the technical field of plant genetics and breeding, in particular to a breeding method for the G-resistant sunflower restorer line 1808R. Background technique [0002] Sunflower is one of the important economic crops in our country, and it is an important source of increasing the income of farmers and increasing the efficiency of enterprises in our country. Sunflower Liedang is a vicious weed that parasitizes on the roots of sunflowers. In recent years, it has shown an explosive growth trend in sunflower-producing areas across the country, posing a serious threat to the development of the sunflower industry in my country. Existing studies have shown that the best way to solve the hazards of sunflower radang is to breed sunflower varieties resistant to radang. [0003] The differentiation of physiological races exists in sunflower rowang. At present, eight physiological races of A, B, C, D, E, F, G, and H have been identified i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04
CPCA01H1/02A01H1/04
Inventor 石必显雷中华赖成霞崔宏亮管建华哈帕孜·恰合班沙红高燕玛依拉·玉素音黄启秀吴伟吴元柱
Owner ECONOMIC CROPS RES INST XINJIANG ACAD OF AGRI SCI
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