Method for breeding hybrid rice Kaiyou 18

A technology of hybrid rice and hybrid seed production, applied in the breeding field of hybrid rice Kaiyou 18, which can solve the problems of long growth period and low growth period, and achieve the effects of high seed setting rate, good color fading at ripening stage, and moderate plant type

Inactive Publication Date: 2014-11-26
HUAINAN CITY SEED
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

At present, there are many varieties of hybrid rice, but there are still many problems. Most varieties are often high but not high, or good but not high, or have a long growth period. There are very few varieties that truly integrate abundance, resistance and superiority.

Method used

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  • Method for breeding hybrid rice Kaiyou 18
  • Method for breeding hybrid rice Kaiyou 18

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Experimental program
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Effect test

Embodiment 1

[0058] 1. Target character design: The yield per mu is more than 600kg; the rice quality meets the third-class national standard for edible rice; the lodging resistance and disease resistance are strong; the whole growth period is similar to Shanyou 63.

[0059] 2. Breeding methods

[0060] Kaiyou 18 was bred by hybridization method. In the 1-2 years before the grouping, various sterile lines and restorer lines were carefully observed and recorded, and their characteristics, yield, rice quality, resistance to stress and growth period were mastered. According to the requirements of breeding goals, Kai06S, which has large ears and more grains, strong tillering ability and good rice quality, was selected as the female parent. Huaihui 9817, which has large ears and many grains, strong tillering ability, good rice quality, short plant, sturdy stalk, and early maturity, was selected as the male parent, and crossed with the group, and finally bred into Kaiyou 18, which has both abundant ...

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Abstract

The invention discloses a method for breeding hybrid rice Kaiyou 18. The method comprises the following steps: by taking two series of sterile line Kai 06S as female parents and Huaihui 9817 as a male parent, performing hybrid seed production, and obtaining a new species Kaiyou 18. According to the method for breeding hybrid rice Kaiyou 18, the two series of sterile line Kai 06S with large ears, more grains, stronger tillering ability and excellent rice quality are taken as female parents, Huaihui 9817 with large ears, more grains, stronger tillering ability, excellent rice quality, dwarf stem, thick and strong stalk and early maturity is taken as a male parent, and finally the Kaiyou 18 with the advantages of high yield, high quality, high resistance and moderate growth period is bred.

Description

Technical field [0001] The invention relates to a method for breeding hybrid rice, in particular to a method for breeding hybrid rice Kaiyou 18. Background technique [0002] Heterosis is a common phenomenon in the biological world. Using heterosis to improve the yield and quality of crops is one of the main achievements of modern agricultural science. Rice has obvious heterosis, which is mainly manifested in the aspects of vigorous growth, well-developed root system, large panicles and many grains, and strong stress resistance. Therefore, using the heterosis of rice to greatly increase rice yield has always been the dream of breeders. However, most of the research now focuses on high yield, which has solved the problem of low yield, but the quality has not been improved. If you want to improve the quality, you must pay more manpower and material resources, and the goal of high yield cannot be achieved. With the improvement of people's living standards, people are not only satis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
Inventor 刘武余明普刘钊李义雷沈伟
Owner HUAINAN CITY SEED
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