Method for breeding new rice varieties through irradiation

A new variety and irradiation technology, applied in the fields of botanical equipment and methods, application, and plant genetic improvement, can solve the problems of increasing pressure on food demand and lagging research on rice quality improvement, and achieve strong tillering power and high yield. Good, coordinated effect of ear-grain structure

Inactive Publication Date: 2013-01-23
江苏丰源种业有限公司 +1
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Problems solved by technology

High-yield breeding has always been an important goal of rice breeding. Due to the large population in my country, the area of ​​arable land has decreased year by year...

Method used

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  • Method for breeding new rice varieties through irradiation
  • Method for breeding new rice varieties through irradiation

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Embodiment Construction

[0032] 1) On May 8, 2007, a new early-maturing late japonica rice line Zhen 3484 with good palatability, high yield, strong disease resistance, wide adaptability and great application potential, which was newly bred by our institute, was selected as the irradiation breeding material. Photo, use Co 60 Irradiate 800 grams to get M 0 ;

[0033] 2) On June 5, 2007, M 0 Seed soaking and germination live broadcast, sowing 14M 2 , Weeding at seedling stage but no fertilizer, applying a small amount of N fertilizer at booting stage, all seeds are harvested to obtain M 1 ;

[0034] 3) On May 20, 2008, M 1 Seed soaking and accelerating sowing, the sowing density is 80 kg / mu, 10 kg urea / mu is applied in one leaf and one heart stage, and 200 ml of 41% glyphosate water is sprayed with 20-30 kg of water in the three-leaf stage, and then moved after 15 days. Plant surviving single plants; fertilize the live trees after transplanting, and then spray with 200ml of 41% glyphosate water solution and ...

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Abstract

The invention relates to a method for plant breeding and belongs to the field of genetic breeding. With the improvement of the living standards of people, adjustment of the planting structure and fierce competition in international markets, the problem of how to breed high-yield conventional japonica rice varieties which are high in disease resistance performance and high in taste quality is urgent to be solved. By the method for breeding new rice varieties through irradiation, defects in the prior art can be overcome, and the new rice varieties which are high in quality (high in both exterior quality and taste quality), high in yield and high in disease resistance can be bred in a short time.

Description

Technical field [0001] The invention relates to a plant breeding method, and more specifically to a breeding method for selecting and breeding new rice varieties with high quality, high yield and disease resistance through irradiation. Background technique [0002] Rice is the largest crop in my country. There are mainly two subspecies of rice cultivated in China, namely the indica subspecies and the japonica subspecies. Jiangsu mainly cultivates japonica subspecies, which accounts for more than 90% of Jiangsu's rice planting area. High-yield breeding has always been an important goal of rice breeding. Due to the large population, the declining area of ​​arable land in my country and the increasing pressure on food demand, high-yield breeding has long been given top priority, and the improvement of rice quality has been lagging behind. In recent years, with the improvement of people's living standards, the adjustment of planting structure, the pressure of international market co...

Claims

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Application Information

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IPC IPC(8): A01H1/04A01H1/06
Inventor 景德道盛生兰钱华飞林添资余波李闯龚红兵曾生元周义文于苗苗
Owner 江苏丰源种业有限公司
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