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Breeding method for three-line sterile rice with high head rice rate and excellently-slender rice grains

A technology of three-line male sterile line and polished rice rate, which is applied in the field of long-grain rice three-line male sterile line breeding, can solve the problems of affecting rice sensory indicators, affecting rice eating quality, reducing commerciality, etc., and achieving palatability Good performance, large aspect ratio, and the effect of improving merchandiseability

Inactive Publication Date: 2017-12-01
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The increase of broken rice rate not only affects the sensory index of rice, reduces the commerciality, but also affects the eating quality of rice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) A method for breeding long-grained three-line male sterile lines of rice with a high rate of polished rice and extremely slender rice grains. The long-grained cytoplasmic male sterile line with low rate of polished rice and good general combining ability is used to maintain long-grained rice Line B ("Jin 23B") is the female parent; the grains are short and round (the length of the rice grain is 6.00mm, the width of the grain is 2.9mm, and the aspect ratio is 2.07). 11.5mm, 3.2mm wide, rice variety A (“Boshan”) with an aspect ratio of 3.59 and long-grained rice variety C (“C10”) with a high percentage of polished rice as the male parents; as the hybrid combination F B / F A ;F B / F C , planting the first generation hybrid F BA and F BC , and with F BA with F BC cross again to obtain the first generation of recrossing, with F （B / A / / B / C） express; plant F （B / A / / B / C）， and harvest F 2 seed;

[0017] 2) Plant F 2 Seeds, 2,500 plants were planted, and the excellent...

Embodiment 2

[0025] 1) A method for breeding long-grained three-line male sterile lines of rice with a high rate of polished rice and extremely slender rice grains. The long-grained cytoplasmic male sterile line with low rate of polished rice and good general combining ability is used to maintain long-grained rice Line B (“Taifeng B”) is the female parent; the grains are short and round (the length of the rice grain is 6.00mm, the width of the grain is 2.9mm, and the aspect ratio is 2.07). The rice variety A ("Boshan") with a length of 11.5mm, a width of 3.2mm, and an aspect ratio of 3.59 and a variety C ("C10") with a long grain type and high milling rice rate are the male parents; used as the hybrid combination F B / F A ;F B / F C , planting the first generation hybrid F BA and F BC , and with F BA with F BC cross again to obtain the first generation of recrossing, with F （B / A / / B / C） express; plant F （B / A / / B / C）， and harvest F 2 seed;

[0026] 2) Plant F 2 Seeds, 3000 plants were p...

Embodiment 3

[0034] 1) A method for breeding a three-line male sterile line of long-grained rice with a high percentage of polished rice and extremely slender rice grains, characterized in that the long-grained cytoplasmic males with a low percentage of polished rice and good general combining ability The sterile maintainer line B ("T78B") is the female parent; the grains are short and round (the length of the rice grain is 6.00mm, the width of the grain is 2.9mm, and the aspect ratio is 2.07). The rice variety A ("Boshan") with a length of 11.5mm, a width of 3.2mm, and an aspect ratio of 3.59 and the variety C ("C10") with long grain type and high milling rice rate are the male parents; as the hybrid combination F B / F A ;F B / F C , planting the first generation hybrid F BA and F BC , and with F BA with F BC cross again to obtain the first generation of recrossing, with F （B / A / / B / C） express; plant F （B / A / / B / C）， and harvest F 2 seed;

[0035] 2) Plant F 2 Seeds, 3000 plants were...

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Abstract

The invention relates to a breeding method for three-line sterile rice with high head rice rate and excellently-slender rice grains and belongs to the technical field of genetic breeding of crops. The method relates to the breeding of high-quality cytoplasmic male sterile rice which is moderate in growth period, high in head rice rate and excellently-slender in rice grains after being cooked and has long grains. By matching the three-line sterile rice with a great number of restoring lines, a novel combination of high-quality three-line hybrid rice which has long rice grains and is high in head rice rate and excellently-slender in rice grains after being cooked is expected to be screened.

Description

technical field [0001] The invention specifically relates to a method for breeding a three-line male sterile line of long-grain rice with a high rice rate and extra-slender rice grains, and belongs to the technical field of crop genetics and breeding. Background technique [0002] With the improvement of people's living standards, the demand for high-quality rice is increasing, and high-quality hybrid rice breeding has become the main goal of current rice breeding. Breeding high-quality male sterile lines is the key to improving the quality of hybrid rice. Rice quality traits mainly include appearance quality, processing quality and cooking and eating quality. According to the Ministry of Agriculture NY / T593-2002 "Quality of Edible Rice Varieties", in addition to grain length, aspect ratio, gel consistency and amylose content, etc. An important indicator of grades. In the market, high-quality long-grain rice in the south is favored by the general public, and the selection...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02
CPCA01H1/02
Inventor 林荔辉程祖锌康水英蒋云林吴为人练格林黄昕颖施涛蔡华镇李忠金
Owner FUJIAN AGRI & FORESTRY UNIV
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