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Breeding method of good quality, double-low, disease-resistant, high yield, lodging-resistant rape

A high-quality, high-yield technology, applied in the fields of botanical equipment and methods, plant products, plant genetic improvement, etc., can solve the problems of poor lodging resistance, high-yield performance and limited degree of mechanized operation, low yield of high-quality rapeseed, and achieve excellent and stable quality. Effect

Inactive Publication Date: 2009-01-07
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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Problems solved by technology

Most of the existing main varieties in Jiangsu have many disadvantages that are difficult to integrate, and most of them are not resistant to Sclerotinia sclerotiorum. At the same time, the traditional high-quality rapeseed has low yield and is difficult to break through. The degree of mechanization is limited

Method used

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  • Breeding method of good quality, double-low, disease-resistant, high yield, lodging-resistant rape
  • Breeding method of good quality, double-low, disease-resistant, high yield, lodging-resistant rape

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Embodiment

[0019] 1)F 0 The self-selected Brassica napus variety Zhen 9701 with early maturity, high yield, high anti-sclerotinia, strong lodging resistance and compact plant type was selected as the female parent, and the self-selected F 1 ’ crossbreed to get F 0 43 seeds, of which the F 1 ’ was obtained by crossing Su 8518 with high-quality double-low genetic background and 94Y16;

[0020] 2) F1 self-breeding: 1998 autumn planting F 1 In two rows, select single plants with strong advantages and good agronomic traits for mixed harvesting, that is, F 2 ;

[0021] 3) F2 self-bred: In 1999, F2 2 Seeds are sown. In the field, we only control insects but not prevent diseases. Select single plants with good growth vigor and light diseases. At the same time, indoor seed testing and quality inspection are carried out. Single-bead traits and double-low quality performance are eliminated. f 3 ;

[0022] 4)F 3 Self-breeding: F 3 Sow in individual plants, only control insects but not prev...

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Abstract

The invention discloses a breeding method of high-quality double-low disease-resistant high-yield lodging-resistant rape cultivar 'Zhen 2405'. The bred high-quality double-low rape cultivar has the advantages of full and round seed grain, heavy thousand grain weight, black seed grain, good marketability, excellent disease resistance, stable yield, good lodging resistance, good plant-type trait, good maturity performance, consistent maturity and suitability for the mechanized harvest. The method comprises the following steps: A) selecting the early-mature high-yield rapeseed line 'Zhen 9701' as the maternal plant, which has high resistance to Sclerotinia sclerotiorum and lodging and has compact plant-type trait, selecting rape line F1 as the male parent, which has good agronomic characters and high-yield trait, and cross-breeding to obtain a rape line F0; and B) sowing the rape line F0, sowing the excellent individual plants after the two-row sowing of the rape line F0, and self-inbreeding for 6 generations to obtain the high-quality double-low high-yield rape cultivar (Brassica napus) 'Zhen 2405' with excellent resistance to Sclerotinia sclerotiorum and lodging.

Description

technical field [0001] The invention relates to a breeding method of plants, more specifically to a breeding method of high-quality double-low, disease-resistant, high-yielding and lodging-resistant rapeseed. Background technique [0002] With the rapid development of the economy and the continuous improvement of people's living standards, the market demand for rapeseed is increasing, while the area of ​​cultivated land occupied by industry has increased sharply, the planting area of ​​rapeseed has relatively decreased, the contradiction between supply and demand has become more prominent, and the international and domestic supply is tight. , the global demand for vegetable oil is increasing. According to expert research and analysis, from 2005 to 2010, global vegetable oil consumption will increase by 27%, edible consumption by 14%, and biofuel by 13%. How to increase the yield per unit area of ​​rapeseed is particularly important. At present, the research work on the deve...

Claims

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Application Information

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IPC IPC(8): A01H1/02A01H1/04A01H5/00
Inventor 顾炳朝岳旭国林添资景德道唐则庆刁立平余波王克明杨军
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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