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Hybrid rice breeding method suitable for rice flour processing

A technology of hybrid rice and rice flour, which is applied in the field of hybrid rice genetic breeding, can solve the problems of lack of rice raw materials and affect the healthy development of the rice flour processing industry, and achieve the effect of increasing the mutation rate

Pending Publication Date: 2019-11-19
三明市农业科学研究院
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Problems solved by technology

And this makes the current large number of selected hybrid rice varieties not meet the requirements of high amylose content (24%-27%) required for rice flour processing, resulting in the lack of rice raw materials suitable for rice flour processing, which affects rice flour to a certain extent. Healthy Development of Processing Industry

Method used

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  • Hybrid rice breeding method suitable for rice flour processing

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Embodiment Construction

[0023] Specific embodiments of the present invention will be described below.

[0024] A hybrid rice breeding method suitable for rice flour processing, comprising the following steps:

[0025] step one

[0026] 15,000 high-vigorous seeds of the rice restorer line YH1510 with good quality and good agronomic properties were selected, and the rice amylose content was 16.54%.

[0027] The 15,000 selected seeds were manually dehulled, soaked in water at 23°C for 20 hours, then soaked in 0.002mol / L ethyleneimine at a constant temperature of 23°C for 3 hours, and rinsed with water for 5-6 times after treatment; Then soak in 0.001mol / L sodium azide at a constant temperature of 23°C for 2 hours, rinse with water for 5 to 6 times after treatment, and then soak and rinse in running water for 2 hours; take out the seeds and drain the water, and use moisturizing materials such as linen Wait for the wrapping at 28°C to keep the temperature and moisturize and accelerate germination for 20...

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Abstract

The invention relates to a hybrid rice breeding method suitable for rice flour processing.By using the combined treatment of two mutagens of ethyleneimine and sodium azide, the mutation rate of targettraits can be effectively improved; the method is suitable for improving the rice amylose content of an existing rice restorer line and a prepared hybrid rice variety thereof, the rice amylose content can be effectively increased from a level of not more than 20% to 24%-27% in order to meet the requirements for rice quality of rice flour processing, and the demand for rice raw materials in rice flour processing market is met; the method can also be used for developing hybrid rice seed industry suitable for rice flour processing.

Description

technical field [0001] The invention relates to the field of genetic breeding of hybrid rice, in particular to a hybrid rice breeding method suitable for rice flour processing. Background technique [0002] Rice flour is a silk or strip rice processed product made of rice as raw material through cooking, stretching and other processes. Rice noodles have become one of the very popular special snacks in southern China due to their convenience, nutrition and deliciousness, and have become the second largest rice-based staple food in my country except rice. In order for rice noodles to be of good quality, in addition to good processing techniques, the most important thing is to have good rice varieties as raw materials for making rice noodles. [0003] Studies have shown that the amylose content of rice varieties is considered to be the most important factor affecting the quality of rice flour. There is a close correlation between the processing effect, sensory quality, cookin...

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Application Information

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IPC IPC(8): A01H1/04A01H1/02
CPCA01H1/04A01H1/02
Inventor 韦新宇曾跃辉黄建鸿张锐尚伟
Owner 三明市农业科学研究院
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