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Breeding method of multi-resistance green millet sterile line

A green, millet technology, applied in the directions of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of loss of disease resistance and economic loss of varieties, and achieve the goal of increasing farmers' income, increasing yield and reducing application costs. Effect

Inactive Publication Date: 2017-06-30
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Millet rust is also a major disease in millet production. Rust fungi are obligate parasites. With the large-scale promotion and application of single disease-resistant varieties, it can lead to the emergence of physiological races with stronger pathogenicity, causing the varieties to lose disease resistance. It causes huge economic losses in production, and also makes scientific research and breeding work in a passive state. The key to long-term and effective control of this type of disease is to continuously explore and utilize new resistant source materials and breed new rust-resistant varieties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Parent selection: male sterile line Gao 146 (A), green millet variety Lvyougu (P1), drought-resistant variety Jigu 22 (P2), rice blast-resistant variety Minquan Qinggu ((P3), white disease-resistant variety Shaanxi Xiaobaigu (P4), grain smut-resistant line 94-57 (P5), herbicide-resistant variety Chaogu 58 (P6), and rust-resistant line Shilixiang (P7) are hybrid parents;

[0027] 2) Hybrid matching and screening methods:

[0028] a) Using P1 as the female parent, make hybrids P1 / P2, P1 / P3, P1 / P4, P1 / P5, P1 / P6, P1 / P7, and get 6 hybrid F 1 , respectively with F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15, F 1 -P16, F 1 -P17 means;

[0029] b) planting F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15, F 1 -P16, F 1 -P17 each with 20 plants, crossed F at flowering stage 1 -P12 / F 1 -P13, F 1 -P14 / F 1 -P15, F 1 -P16 / F 1 -P17, get hybrid F1 generation F 1 -P123, F 1 -P145, F 1 -P167;

[0030] c) planting F 1 -P123, F 1 -P145, F 1 -P167, F for harvesting at maturity ...

Embodiment 2

[0045] 1) Parent selection: male sterile line Gao 146 (A), green millet variety Lvyougu (P1), drought-resistant variety Nenxuan 14 (P2), rice blast-resistant variety Minquan Qinggu ((P3), white disease-resistant variety The variety Shaanxi Xiaobaigu (P4), grain smut-resistant line 93-68 (P5), herbicide-resistant variety Jingu No. 56 (P6), and rust-resistant line Shilixiang (P7) are hybrid parents;

[0046] 2) Hybrid matching and screening methods:

[0047] a) Using P1 as the female parent, make hybrids P1 / P2, P1 / P3, P1 / P4, P1 / P5, P1 / P6, P1 / P7, and get 6 hybrid F 1 , respectively with F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15, F 1 -P16, F 1 -P17 means;

[0048] b) planting F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15, F 1 -P16, F 1 -P17 each with 20 plants, crossed F at flowering stage 1 -P12 / F 1 -P13, F 1 -P14 / F 1 -P15, F 1 -P16 / F 1 -P17, get hybrid F1 generation F 1 -P123, F 1 -P145, F 1 -P167;

[0049] c) planting F 1 -P123, F 1 -P145, F 1 -P167, F for harve...

Embodiment 3

[0064] 1) Parent selection: male sterile line Gao 146 (A), green millet variety Lvyougu (P1), drought-resistant variety Nenxuan 14 (P2), rice blast-resistant variety Minquan Qinggu ((P3), white disease-resistant variety The variety Shaanxi Xiaobaigu (P4), grain smut-resistant line 94-57 (P5), herbicide-resistant variety Jingu No. 56 (P6), and rust-resistant line Shilixiang (P7) are hybrid parents;

[0065] 2) Hybrid matching and screening methods:

[0066] a) Using P1 as the female parent, make crosses P1 / P2, P1 / P3, P1 / P4, P1 / P5, P1 / P6, P1 / P7, and get 6 hybrid F 1 , respectively with F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15, F 1 -P16, F 1 -P17 means;

[0067] b) planting F 1 -P12, F 1 -P13, F 1 -P14, F 1 -P15, F 1 -P16, F 1 -P17 each with 20 plants, crossed F at flowering stage 1 -P12 / F 1 -P13, F 1 -P14 / F 1 -P15, F 1 -P16 / F 1 -P17, get hybrid F1 generation F 1 -P123, F 1 -P145, F 1 -P167;

[0068] c) planting F 1 -P123, F 1 -P145, F 1 -P167, F for harvest...

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Abstract

The invention discloses a method for selecting a multi-resistant green millet sterile line and belongs to the technical field of millet sterile line resistance breeding. The present invention takes millet sterile lines, green millet varieties, drought-resistant varieties, rice blast-resistant varieties, white disease-resistant varieties, grain smut-resistant varieties, herbicide-resistant varieties, and rust-resistant varieties as parents, through hybridization and multiple cross polymerization, and After multiple generations of identification of resistance, seed coat color, sterility, outcross seed setting rate, agronomic and yield traits screening, a green millet male sterile line with green seed, drought resistance, herbicide resistance and various diseases was bred. The sterile line has good resistance, good sterility, high outcross seed setting rate, high hybrid yield and good planting benefit.

Description

technical field [0001] The invention specifically relates to a method for breeding a multi-resistant green millet sterile line, and belongs to the technical field of millet sterile line resistance breeding. Background technique [0002] Millet is a plant belonging to the Poaceae family. The grains are small and mostly yellow. After peeling, it is commonly known as millet. Millet is widely cultivated in the temperate and tropical regions of Eurasia. The middle and upper reaches of the Yellow River in China are the main cultivation areas, and there are also a small amount of cultivation in other regions. Millet is a traditional drought-resistant crop, which has outstanding characteristics such as drought resistance and barren resistance, high water use efficiency, wide adaptability, rich and balanced nutrition, and high forage protein content. In the case of increasing drought year by year, it is necessary to further improve the drought tolerance of millet. Grain blast, whit...

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 章清杞陈幼玉李美德杨帆
Owner FUJIAN AGRI & FORESTRY UNIV
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