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Method for selecting and breeding high-quality photo-thermo-sensitive two-line sterile lines by induced mutation of restoring lines

A restorer, light and temperature technology, applied in the agricultural field, can solve the problems of fragile ecological adaptability, poor resilience, and poor yield stability.

Inactive Publication Date: 2017-11-24
安徽喜多收种业科技有限公司
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Problems solved by technology

Although these combinations have taken into account the contradiction between high yield and high quality to a certain extent, due to the relatively single parentage of the main planting combinations of the two lines and the narrow genetic basis, the ecological adaptability is fragile. Poor resistance to natural disasters, weak ecological adaptability, and poor production stability

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  • Method for selecting and breeding high-quality photo-thermo-sensitive two-line sterile lines by induced mutation of restoring lines
  • Method for selecting and breeding high-quality photo-thermo-sensitive two-line sterile lines by induced mutation of restoring lines

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Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0024] Such as figure 1 As shown, a method for breeding high-quality photothermosensitive two-line sterile lines by mutagenesis restorer lines comprises the following steps:

[0025] 1) Mutation restorer line "9311": 1000 grains of dry seeds of restorer line "9311" (water content 14%) were used as the base material, and treated with cobalt-60r ray radiation, the treatment dose was 300Gy, the dose rate was 10Gy / min, and the treatment time was In 30 minutes, "9311" M0 generation seeds treated with radiation mutagenesis were obtained.

[0026] 2) Breeding of a new type of high-quality light-temperature-sensitive two-line male sterile line "Xi 08S": the seeds of the "9311" M0 generation that have undergone radiation mutagenesis treatment were used, a...

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Abstract

The invention discloses a method for breeding a high-quality photothermosensitive two-line sterile line by mutagenizing a restorer line. The restorer line "9311" is successfully mutated and bred into a new high-quality photothermosensitive two-line sterile line "Xi08S" ", compared with the restorer line "9311", the obtained "Xi 08S" has the characteristics of longer flowering period, stable male sterile line, longer sterile period, and strong combining ability, and is suitable for indica and medium indica male sterile lines Planted in the growing area, it has good reproductive ability, high quality, lodging resistance and other characteristics, and the starting temperature of its fertility conversion is below 24 degrees.

Description

technical field [0001] The invention relates to a method for breeding a high-quality light-temperature-sensitive two-line sterile line with a mutagenic restorer line, and belongs to the field of agricultural technology. Background technique [0002] At present, most of the sterile lines of the two-line varieties in rice production are derived from the two main sterile lines of "Peiai 64S" and "Guangzhan 63S" and their derivatives, and most of the restorer lines are derived from "9311" and its derivatives . Although these combinations have taken into account the contradiction between high yield and high quality to a certain extent, due to the relatively single parentage of the main planting combinations of the two lines and the narrow genetic basis, the ecological adaptability is fragile. The ability to resist natural disasters is poor, the ecological adaptability is weak, and the stability of production is poor. Therefore, we propose a method for breeding high-quality phot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01H1/02A01H1/04A01H1/06
CPCA01H1/02A01H1/04A01H1/06
Inventor 胡宗兵王怀槐鲍远超
Owner 安徽喜多收种业科技有限公司
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