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A kind of breeding method of two-line sterile line with special characters

A sterile line and trait technology, applied in the directions of botanical equipment and methods, application, and plant genetic improvement, can solve problems such as economic loss, affecting seed germination rate and seedling growth status, and achieve extended storage period, easy mechanized harvesting, The effect of high nutrient content

Active Publication Date: 2017-03-01
WUHAN QINGFA HESHENG AGRI DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rice seeds also cause huge economic losses due to the decline in vigor during storage, and it will also affect the germination rate of seeds and the growth of seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Choose the light body rice variety "Guang 159" (A), the anti-premature rice variety "Longjing 62" (B), the storage-resistant rice variety "Erqiuai 1" (C), and the yellow glutinous rice variety "Huangmi Waxy" (D), cross A / B and C / D, get cross F 1 Substituted by F 1-AB and F 1-CD indicated that the planted hybrid F 1 generation, crossed F at flowering stage 1-AB / F 1-CD , recross F 1 Substitute the seed to F 1-ABCD express;

[0020] 2) planting F 1-ABCD Seeds, self-delivery sow F 2-ABCD , planting F 2-ABCD , a population of 1100 plants, screened for leaf naked traits at the early stage of tillering, and screened for anti-premature aging at the mature stage, and selected 200 bare-body anti-premature aging individual plants to harvest seeds (F 3-ABCD ), identify the yellow seed coat, waxiness and storage resistance of each seed, and screen and retain the individual plants with yellow seed coat, no separation of waxy property and artificial accelerated aging tre...

Embodiment 2

[0029] 1) Choose the light body rice variety "Guang 159" (A), the anti-premature rice variety "Longjing 62" (B), the storage-resistant rice variety "Erqiuai 1" (C), and the yellow glutinous rice variety "Huangmi Waxy" (D), cross A / B and C / D, get cross F 1 Substituted by F 1-AB and F 1-CD indicated that the planted hybrid F 1 generation, crossed F at flowering stage 1-AB / F 1-CD , recross F 1 Substitute the seed to F 1-ABCD express;

[0030] 2) planting F 1-ABCD Seeds, self-delivery sow F 2-ABCD , planting F 2-ABCD , with a population of 1200 plants, screened for leaf naked traits at the early tillering stage, and screened for anti-premature aging at the mature stage, and selected 250 bare-bodied anti-premature aging individual plants to harvest seeds (F 3-ABCD ), identify the yellow seed coat, waxiness and storage resistance of each seed, and screen and retain the individual plants with yellow seed coat, no separation of waxy property and artificial accelerated aging...

Embodiment 3

[0039] 1) Choose the light body rice variety "Guang 159" (A), the anti-premature rice variety "Longjing 62" (B), the storage-resistant rice variety "Erqiuai 1" (C), and the yellow glutinous rice variety "Huangmi Waxy" (D), cross A / B and C / D, get cross F 1 Substituted by F 1-AB and F 1-CD indicated that the planted hybrid F 1 generation, crossed F at flowering stage 1-AB / F 1-CD , recross F 1 Substitute the seed to F 1-ABCD express;

[0040] 2) planting F 1-ABCD Seeds, self-delivery sow F 2-ABCD , planting F 2-ABCD, a population of 1300 plants, screened for leaf naked traits at the early stage of tillering, and screened for anti-premature aging at the mature stage, and selected 300 bare-body anti-premature aging individual plants to harvest seeds (F 3-ABCD ), identify the yellow seed coat, waxiness and storage resistance of each seed, and screen and retain the individual plants with yellow seed coat, no separation of waxy property and artificial accelerated aging trea...

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Abstract

The invention discloses a breeding method of a two-line sterility line with a special character, and belongs to the technical field of special rice breeding. The method comprises the following steps: selecting four special rice varieties respectively with glabrous property, premature senility resistance, endurable storage and yellow seed coat glutinous property as materials, hybridizing, multiple-crossing and backcrossing transforming, and screening strains with the glabrous property, premature senility resistance, endurable storage, yellow seed coat, glutinous property, agronomic trait, yield character and sterility of the segregative generation, breeding the screened strains into a yellow glutinous rice two-line sterility line with glabrous property, premature senility resistance and endurable storage, assembling the yellow glutinous rice two-line sterility line with a restoring line with the same characters to breed the yellow glutinous two-line hybrid rice with the glabrous property, premature senility resistance and endurable storage. The hybrid rice is capable of resisting premature senility, endurable in storage, high in yield, easy to mechanically harvest, the rice paddy is yellow, and the rice is soft and good in taste, and rich in various nutrients.

Description

technical field [0001] The invention specifically relates to a method for breeding a two-line sterile line with special traits, and belongs to the technical field of special rice breeding. Background technique [0002] People call the common cultivated rice the type with chaff and leaves without hair, called naked rice. In order to meet the needs of mechanization, most of the rice varieties in the United States are naked rice. Because of their good rice quality and high light efficiency, they have been successfully used in conventional variety breeding in my country. "Bare body rice" is hairless all over the body, and it is difficult for pests to attach and invade. It has strong resistance to diseases and pests. It can reduce skin itching and damage to the skin during manual harvesting and threshing. It is easy to mechanized harvesting and processing. No dust, can reduce environmental pollution, so it is also called "environmental protection rice". Premature senescence of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01H1/02A01H1/04
Inventor 朱晓波吴锴陈耀东王鹏周旭升苏中想
Owner WUHAN QINGFA HESHENG AGRI DEV CO LTD
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