CN101743872A - Method for breeding two-line sterile line of rice - Google Patents
Method for breeding two-line sterile line of rice Download PDFInfo
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- CN101743872A CN101743872A CN200910273159A CN200910273159A CN101743872A CN 101743872 A CN101743872 A CN 101743872A CN 200910273159 A CN200910273159 A CN 200910273159A CN 200910273159 A CN200910273159 A CN 200910273159A CN 101743872 A CN101743872 A CN 101743872A
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Abstract
The invention provides a method for breeding two-line sterile line of rice. The two-line sterile line of rice is bred in areas at high latitude and the temperature of irrigation water is manually controlled to ensure that the temperature of irrigation water in the fertility alternation period ranges from 22 DEG C to 24 DEG C. The temperature can not only ensure the low temperature required during fertility alternation and satisfy the temperature required by normal growth of rice, thereby greatly improving the safety for breeding two-line sterile line of rice. The method for breeding two-line sterile line of rice has little risk, low cost and high yield.
Description
Technical field
The present invention relates to paddy rice propagation technique field, specifically a kind of propagation method of two-line sterile line of rice.
Background technology
Two-line sterile line of rice is a kind of special light temperature-sensitive rice, and specifically: this paddy rice shows as male sterile under long-day, hot conditions, and at this moment it can with the hybridization of recovery system, produce hybrid seed as male sterile line.And this photo-thermo-sensitive genetic male sterile line paddy rice is under short-day, low temperature, can normal self-fertility, and do not need the maintenance line just can the breeding male sterile lines seed.
Present this two-line sterile line of rice generally carries out the breeding in winter in low latitudes paddy rice producing regions such as China Hainan; and low latitudes such as Hainan hot weather occurs in the winter time through regular meeting; it is sterile to make that two-line sterile line of rice shows as, thereby causes sterile line propagation to yield poorly even have no harvest.
Summary of the invention
The objective of the invention is provides a kind of propagation method of two-line sterile line of rice in order to overcome the weak point of above-mentioned background technology, and this method can effectively avoid in the two-line sterile line of rice reproductive process temperature to its influence, and is safe.
To achieve these goals, the propagation method of a kind of two-line sterile line of rice provided by the invention is that the two-line sterile line of rice breeding is carried out in paddy rice producing region between 53 ° of 40 °～north latitude of north latitude; Quote the water of 22 ℃ to 24 ℃ of water temperatures in the fertility of two-line sterile line of rice conversion sensitive periods and irrigate, 25 ℃ to 30 ℃ the water quoted At All Other Times of non-fertility conversion sensitive periods is irrigated in the two-line sterile line of rice reproductive process.
In technique scheme, 25 ℃ to 30 ℃ the water that is used for At All Other Times irrigating of non-fertility conversion sensitive periods draws from the heat energy water of steam power plant in the two-line sterile line of rice reproductive process.
In technique scheme, described paddy rice producing region is meant that Beijing is to the paddy rice producing region between the Mo River.
In technique scheme, May 1 between May 20 and daily mean temperature carry out the two-line sterile line of rice sowing during at 12 ℃ to 15 ℃.
The propagation method of a kind of two-line sterile line of rice provided by the invention it is advantageous that being chosen in the high latitude producing region breeds can effectively avoid the temperatures involved that is subjected to when low latitudes is bred, the temperature of simultaneously artificial control irrigation water, the water temperature that can guarantee to be used to irrigate in the fertility transition period is at 22 ℃～24 ℃, this temperature can guarantee the required low temperature of fertility conversion, it is temperature required to satisfy the paddy rice normal growth again, improved the safety of two-line sterile line of rice breeding greatly, this method breeding two-line sterile line of rice risk is little, cost is low, the output height.
Embodiment
The two-line sterile line of rice breeding is carried out in the paddy rice producing region that the propagation method of present embodiment two-line sterile line of rice is selected between 53 ° of the 40 °～north latitude of north latitude.
According to the duration from seeding to heading of male sterile line, calculate sowing time from the safety full heading time backward, be chosen in May 1 between May 20 and daily mean temperature sow 12 ℃ to 15 ℃ the time.
The mode of its sowing is varied, can select live, film to cover methods such as seedling or greenhouse rice nursery.Its planting density is 1.5～3.0 ten thousand cave/mus.
In the fertility of two-line sterile line of rice conversion sensitive periods is that 22 ℃ to 24 ℃ of water temperatures are quoted in rice young panicle differentiation during 5～6 phases cold water is irrigated.Non-fertility is changed sensitive periods At All Other Times in the two-line sterile line of rice reproductive process, near the steam power plant multiplication plot, quotes 25 ℃ to 30 ℃ heat energy waters two-line sterile line of rice is irrigated.
Claims (4)
1. the propagation method of two-line sterile line of rice is characterized in that: this method is that the two-line sterile line of rice breeding is carried out in the paddy rice producing region between 53 ° of 40 °～north latitude of north latitude; Quote the water of 22 ℃ to 24 ℃ of water temperatures in the fertility of two-line sterile line of rice conversion sensitive periods and irrigate, 25 ℃ to 30 ℃ the water quoted At All Other Times of non-fertility conversion sensitive periods is irrigated in the two-line sterile line of rice reproductive process.
2. the propagation method of two-line sterile line of rice according to claim 1 is characterized in that: 25 ℃ to 30 ℃ the water that is used for At All Other Times irrigating of non-fertility conversion sensitive periods draws from the heat energy water of steam power plant in the two-line sterile line of rice reproductive process.
3. the propagation method of two-line sterile line of rice according to claim 1, it is characterized in that: described paddy rice producing region is meant that Beijing is to the paddy rice producing region between the Mo River.
4. the propagation method of two-line sterile line paddy rice according to claim 3 is characterized in that: May 1 between May 20 and daily mean temperature carry out the two-line sterile line of rice sowing during at 12 ℃ to 15 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910273159A CN101743872A (en) | 2009-12-11 | 2009-12-11 | Method for breeding two-line sterile line of rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910273159A CN101743872A (en) | 2009-12-11 | 2009-12-11 | Method for breeding two-line sterile line of rice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101743872A true CN101743872A (en) | 2010-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910273159A Pending CN101743872A (en) | 2009-12-11 | 2009-12-11 | Method for breeding two-line sterile line of rice |
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| CN (1) | CN101743872A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144533A (en) * | 2010-12-27 | 2011-08-10 | 湖北省农业科学院粮食作物研究所 | Method for cultivating two-line sterile line rice with long fertility conversion transition period |
| CN106386312A (en) * | 2016-09-18 | 2017-02-15 | 四川农业大学 | Method for propagation and seed production of two-line sterile lines of rice |
| CN106857132A (en) * | 2017-03-22 | 2017-06-20 | 湖南杂交水稻研究中心 | A kind of simple two-line sterile line propagation method |
| CN112753564A (en) * | 2020-12-29 | 2021-05-07 | 湖南省春云农业科技股份有限公司 | Breeding method of high-quality two-line sterile line of rice |
-
2009
- 2009-12-11 CN CN200910273159A patent/CN101743872A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102144533A (en) * | 2010-12-27 | 2011-08-10 | 湖北省农业科学院粮食作物研究所 | Method for cultivating two-line sterile line rice with long fertility conversion transition period |
| CN106386312A (en) * | 2016-09-18 | 2017-02-15 | 四川农业大学 | Method for propagation and seed production of two-line sterile lines of rice |
| CN106386312B (en) * | 2016-09-18 | 2020-01-03 | 四川农业大学 | Method for breeding seeds of rice by two-line sterile line |
| CN106857132A (en) * | 2017-03-22 | 2017-06-20 | 湖南杂交水稻研究中心 | A kind of simple two-line sterile line propagation method |
| CN112753564A (en) * | 2020-12-29 | 2021-05-07 | 湖南省春云农业科技股份有限公司 | Breeding method of high-quality two-line sterile line of rice |
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Open date: 20100623 |