CN1114524A - Method for breeding rice male sterile line by using cutting sensitive sterile line - Google Patents
Method for breeding rice male sterile line by using cutting sensitive sterile line Download PDFInfo
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- CN1114524A CN1114524A CN95110723A CN95110723A CN1114524A CN 1114524 A CN1114524 A CN 1114524A CN 95110723 A CN95110723 A CN 95110723A CN 95110723 A CN95110723 A CN 95110723A CN 1114524 A CN1114524 A CN 1114524A
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- sterile line
- male sterile
- rice
- male
- cutting
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Abstract
The present invention relates to a method for breeding dilinear hybrid rice male sterile strain by using cutting sensitivity sterile strain. It is characterized by that after having been come into blossom and ear the maternal first ear of the cutting sensitivity sterile strain is cut so as to change the male sterility into male fertility to form its selfed seed. Said invention is not limited in season, light and temp. conditions, and changes the passive mechanism into artificial control mechanism, so that as compared with the existent photosensitive and temperature sensitive male sterile strain breeding methods the invented method is more simple, convenient and advanced.
Description
The present invention relates to a kind of method of breeding the double-linear hybrid rice male sterile line, the method that quick male sterile line is bred the double-linear hybrid rice male sterile line is cut in particularly a kind of utilization.
After series of three-series hybrid rice, double-linear hybrid rice has been risen in China.Breeding of its male sterile line adopted the photoperiod-temperature sensitive male sterility method, promptly with a kind of sterile material of experiencing the light temperature, by the short light of its impression, low temperature, fertility is changed, bear selfed seed and breed male sterile line in this way, owing to be subjected to the restriction of light and temperature condition, thereby effect is bad.
The object of the present invention is to provide a kind of utilization that not limited by light and temperature condition to cut the method that quick male sterile line is bred the double-linear hybrid rice male sterile line.
The object of the present invention is achieved like this: utilize a kind of property all the year round to cut quick male sterile line, after its heading is bloomed, cradle a maternal rice, can make maternal rice stub base pitch and base portion grow the ratoon rice plant, promptly finish the fertility conversion this moment, change male sterile is male-fertile, bears selfed seed.
The present invention utilized cuts quick male sterile line, under conditions such as the south of China, the north, long light, short light, high temperature, low temperature all is male sterile, breed male sterile line and adopt it to cradle, then can not be subjected to the restriction of conditions such as season, light temperature, become passive mechanism and be artificial controlling mechanism, thereby it is more easy and advanced to breed method than existing photoperiod-temperature sensitive male sterility system.
Embodiment: when breeding, will cut quick male sterile line seed vernalization earlier, and cultivate into plant in the rice seedling bed, move to the land for growing field crops, strengthen cultivating and managing, when its heading is bloomed, be male sterile, can be used for hybrid seeding, and will obtain selfed seed, then to after blooming, heading cradle a maternal rice, spend 25-30 days, ratoon rice grows up to, and heading is bloomed, become male fertile this moment, promptly bears selfed seed.
There are two kinds of methods to adopt during concrete operations.
First method: sowing---heading is bloomed, and---being the production of hybrid seeds with recovery, plant by---cradling---ratoon rice knot.Can be used for the double cropping rice area.
Second method: sowing---heading is bloomed---finish---cradling---ratoon rice knot kind of heading.Can be used for single cropping rice area.
Claims (2)
1, the method that quick male sterile line is bred the double-linear hybrid rice male sterile line is cut in a kind of utilization, it is characterized in that cradling its maternal rice when cutting after the heading of quick male sterile line blooms, and makes it become male sterile and is male-fertile, bears selfed seed.
2, the method that quick male sterile line is bred the double-linear hybrid rice male sterile line is cut in utilization according to claim 1, it is characterized in that when cutting after the heading of quick male sterile line blooms, can be earlier and recovery be the production of hybrid seeds, cradle its female parent rice again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110723A CN1114524A (en) | 1995-04-19 | 1995-04-19 | Method for breeding rice male sterile line by using cutting sensitive sterile line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95110723A CN1114524A (en) | 1995-04-19 | 1995-04-19 | Method for breeding rice male sterile line by using cutting sensitive sterile line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1114524A true CN1114524A (en) | 1996-01-10 |
Family
ID=5078074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95110723A Pending CN1114524A (en) | 1995-04-19 | 1995-04-19 | Method for breeding rice male sterile line by using cutting sensitive sterile line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1114524A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771384A (en) * | 2012-08-22 | 2012-11-14 | 江苏丰源种业有限公司 | Method for seed production of two-line hybrid rice |
-
1995
- 1995-04-19 CN CN95110723A patent/CN1114524A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771384A (en) * | 2012-08-22 | 2012-11-14 | 江苏丰源种业有限公司 | Method for seed production of two-line hybrid rice |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |