Breeding method of hybrid rice Kaixiangyou No.3

A hybrid rice, fragrant and excellent technology, applied in the fields of botanical equipment and methods, application, plant genetic improvement, etc., can solve the problems of low height and long growth period.

Inactive Publication Date: 2014-12-10
HUAINAN CITY SEED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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  • Breeding method of hybrid rice Kaixiangyou No.3

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] Kaixiangyou 3 is a new two-line hybrid rice variety selected and bred. Through the test of mating group, identification and variety comparison test, the variety has good comprehensive performance in terms of yield, quality, resistance, growth period and biological morphological characteristics.

[0102] 1. Breeding objectives

[0103] Carefully select excellent parents (parental parents), carry out scientific matching, make their advantages and disadvantages complement each other, and breed new hybrid rice varieties with high yield, high quality, strong resistance and moderate growth period. Design of target traits: more than 600kg per mu; rice quality up to the third-class standard of edible rice in the national standard; strong lodging resistance and disease resistance; short growth period.

[0104] 2. Breeding methods

[0105] Kaixiangyou 3 was bred by mating hybridization method. 1-2 years before grouping, various sterile lines and restorer lines were carefully ob...

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Abstract

The invention discloses a breeding method of hybrid rice Kaixiangyou No.3. The method comprises the following step: carrying out hybridization breeding by taking two-line sterile line 08S as a female parent and S9817 as a male parent to obtain the new species Kaixiangyou No.3. The Kaixiangyou No.3 has the advantages of plant height of 120.2 cm, high tillering capability, moderation in plant type, large number of productive ears, high setting percentage, large ear, large number of granules, heavy granule, better color transform in a maturing stage, high lodging-resistant capability and high temperature resistance.

Description

technical field [0001] The invention relates to a method for breeding hybrid rice, in particular to a method for breeding hybrid rice Kaixiangyou 3. Background technique [0002] Heterosis is a common phenomenon in the biological world, and it is one of the main achievements of modern agricultural science to use heterosis to improve the yield and quality of crops. Rice has obvious heterosis phenomenon, which is mainly manifested in vigorous growth, well-developed root system, large ears and many grains, and strong stress resistance. Therefore, it has always been the dream of breeders to use the heterosis of rice to greatly increase rice yield. But now most of the research is focused on high yield, which solves the problem of low yield, but the quality has not been improved. If you want to improve the quality, you have to spend more manpower and material resources, and you can't achieve the goal of high yield. With the improvement of people's living standards, people are not...

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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