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Method for breeding late moderate japonica rice

A technology of medium japonica and varieties, applied in the direction of botany equipment and methods, application, plant gene improvement, etc., can solve the problems of not meeting the requirements of rice quality and poor quality of rice varieties, and achieve good resistance to bacterial blight, Fertilizer resistance, strong lodging resistance and wide cultivation adaptability

Inactive Publication Date: 2004-12-08
通州市农林科学研究所 +1
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Problems solved by technology

[0003] Technical Problems The present invention aims at the high-yield but not high-quality rice varieties in the prior art, which cannot meet people’s requirements for rice quality, and provides a breeding method for late-maturing medium-japonica rice varieties to breed high-quality, stable-yield, and high-yield rice New varieties

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  • Method for breeding late moderate japonica rice

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Embodiment Construction

[0020] (1) Breeding process

[0021] In 1994, the present invention introduced a small amount of Tongjing 109 (formerly known as 92-109), and planted them in the introduction observation nursery, and those planted in the same nursery were introduced from Jiaxing City Agricultural Science Institute, Wujin City Rice and Wheat Breeding Field and Nantong City Seed Company, etc. New species and strains of the unit. In 1995, three mutant plants with excellent plant type were found in the observation nursery of Tongjing 109. The excellent mutant plants: good ripening stage, slightly earlier than Tongjing 109, good posture under light, compact plant type, 15 panicles in total, and Serial numbered in B. One of them not only has a good ripening appearance, but its maturity period is slightly earlier than that of Tongjing 109. It has a good attitude towards light, a compact plant type, and short and small flag leaves, 20-25cm in length, and the flag leaves are upright. , a total of 4 s...

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Abstract

A method for culturing the later ripe middle-season round-grained non-glutinous rice includes such steps as choosing the excellent variant plant of Tonggeng '109', and systematic selective culturing by several years to obtain 'B14'. Its advantage is high yield and quality.

Description

1. Technical field [0001] The invention discloses a breeding method for late-maturing medium-japonica rice varieties, which belongs to the technical field of crop breeding and is specially used for breeding stable, high-yield, and high-quality late-maturing medium-japonica varieties. 2. Technical Background [0002] Rice is the main grain crop in my country, and its total output accounts for about one-third of the grain crop output. In Jiangsu, japonica rice is mainly planted. With the continuous improvement of people's living standards, the requirements for rice quality are getting higher and higher. In the past, "Jia 33-5" and "95-16" (Kongzhi Gongyong, Wuyunjing No. 8) introduced in central Jiangsu had relatively high yields, but none of them could be popularized on a large scale. The main reason was quality. bad. In recent years, quality has been used as a main indicator in breeding. Tongjing 109 is a widely popularized variety in central Jiangsu. Its main characteris...

Claims

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Application Information

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IPC IPC(8): A01H1/04
Inventor 陈海燕
Owner 通州市农林科学研究所
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