CN1082811A - Method for preparing indica-japonica hybrid rice seeds by low-temperature castration - Google Patents
Method for preparing indica-japonica hybrid rice seeds by low-temperature castration Download PDFInfo
- Publication number
- CN1082811A CN1082811A CN 92107067 CN92107067A CN1082811A CN 1082811 A CN1082811 A CN 1082811A CN 92107067 CN92107067 CN 92107067 CN 92107067 A CN92107067 A CN 92107067A CN 1082811 A CN1082811 A CN 1082811A
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- Prior art keywords
- rice
- japonica
- indica
- hybrid
- preparing
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- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 24
- 235000009566 rice Nutrition 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 240000008467 Oryza sativa Japonica Group Species 0.000 claims abstract description 9
- 238000009331 sowing Methods 0.000 claims abstract description 4
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 claims abstract description 4
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 claims description 5
- 230000008774 maternal effect Effects 0.000 claims description 3
- 238000009401 outcrossing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000009396 hybridization Methods 0.000 abstract description 2
- 240000002582 Oryza sativa Indica Group Species 0.000 abstract 2
- 206010021929 Infertility male Diseases 0.000 abstract 1
- 208000007466 Male Infertility Diseases 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 244000184734 Pyrus japonica Species 0.000 description 4
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 230000008775 paternal effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
The invention relates to a method for preparing indica-japonica hybrid rice seeds by natural low-temperature castration, which takes indica rice as a female parent and wide-compatible japonica rice as a male parent, and adopts the steps of selecting seed production and adjusting the sowing period to ensure that the daily average temperature in the ear-drawing and flowering stages of parents planted alternately is about 20 ℃, so that indica rice male sterility is caused, japonica rice is fertile, and indica-japonica hybridization is carried out to obtain subspecies hybrid seeds. The application of the invention does not need a restorer line, has simple seed production process and low cost, and is beneficial to preparing more strong and excellent combinations.
Description
The present invention relates to a kind of method of preparing the indica-japonica hybrid rice, promptly two line method is produced the method for paddy rice inter-subspecies hybrid seed.
Hybrid rice is spread wide in China and each rice producing region, the world, and obtained huge economic benefit, as everyone knows, this affiliation of paddy rice father and mother is far away more, then hybrid vigour is strong more, therefore how to utilize the hybrid vigour between the paddy rice indica and japonica subspecies to become the important topic that breeding men are studied.Because affiliation is far away more, then compatibility is poor more, therefore prepares strong excellent hybrid combination, is not an easy thing.In recent years, some breeding units of China, seed selection some wide affine japonica rice varieties, for bright prospects have been opened up in the utilization of indica-japonica heterosis.The Indica-Japonica Hybrid Rice combination of being prepared at present is still continues to use " three line method " producing method for seed preparing hybrid generation seed commonly used, production of hybrid seeds program complexity, and in fact the cost height, does not also have indica-japonica hybrid to be applied to produce at present.
The object of the present invention is to provide a kind of method of utilizing natural low temperature to castrate preparation indica-japonica hybrid rice, utilize this method not need maintenance line, belong to the two line method production of hybrid seeds, thereby production of hybrid seeds program province, cost is low, is easy to make strong excellent combination for production application.
Realize that principle of the present invention and method are as follows: utilize long-grained nonglutinous rice in daily mean temperature male sterile below 22 ℃, gynoecium can be educated, and japonica rice then is in male sterile below 20 ℃, can educate more than 20 ℃.Therefore, by selecting a specific production of hybrid seeds area, the daily mean temperature of this area must have more than 15 days and maintains about 20 ℃.The area of having chosen at present is area, Kunming, Yunnan, this area's daily mean temperature in 7～August is about 20 ℃, thereby then male sterile of kind long-grained nonglutinous rice, planting japonica rice then can educate, it is the desirable place of preparation Indica-Japonica Hybrid Rice, with this class area, Kunming is production of hybrid seeds ground, is maternal with the long-grained nonglutinous rice, and wide affine japonica rice is male parent, this alternate plantation of father and mother, by regulating father and mother's sowing time originally, make its flower synchronization, and the heading flowering stage is in daily mean temperature about 20 ℃, in Kunming is 7～August, during this period of time, paternal pollen is awarded female parent, outcrossing and obtain the Hybrids of Indica and Japonica seed.
Advantage of the present invention is: 1) Indica-Japonica Hybrid Rice is stronger than the advantage of hybridization long-grained nonglutinous rice and Japonica Hybrid; 2) use the two line method production of hybrid seeds, program is simple, and cost is low; 3) because this class area temperature in 7～August of Kunming is low, the kind long-grained nonglutinous rice is sterile, thereby the seed production purity height.The present invention has opened up bright prospects for the utilization of subspecies indica and japonica hybrid advantage.
Embodiment with mean temperature of air continuous more than 15 days be area about 20 ℃ bright cloudlike Nanning-Kunming be production of hybrid seeds ground, with long-grained nonglutinous rice bright extensive 63 is female parent, and wide affine japonica rice 02428 is male parent, alternate plantation, female parent was sowed in early April, male parent was sowed the first tenday period of a month in May, every kind 1 capable male parent, and a kind is counted the row female parent, father and mother are originally in flower synchronization in 7～August, be aided with and manually catch up with powder, make paternal pollen pass to female parent, outcrossing and obtain bright extensive 63 and 02428 first-filial generation seed.
Claims (3)
1, a kind of method of utilizing low temperature to castrate preparation indica-japonica hybrid rice, it is characterized in that, with the long-grained nonglutinous rice is maternal, is male parent with wide affine japonica rice, by selecting production of hybrid seeds ground and regulating sowing time, this heading of father and mother flowering stage is under 20 ℃ of left and right sides conditions of daily mean temperature, cause maternal male sterile, gynoecium can be educated, the male parent male-fertile, male parent is pollinated to female parent, outcrossing and obtain the indica-japonica hybrid rice.
2, the method for preparation indica-japonica hybrid rice according to claim 1 is characterized in that, areas such as selection Kunming, Yunnan are production of hybrid seeds ground, regulate this sowing time of father and mother, make its flowering of earing in 7～August.
3, according to claim 1 and 2 described methods, it is characterized in that long-grained nonglutinous rice is arbitrary kind, and japonica rice is wide affine kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92107067A CN1035353C (en) | 1992-07-23 | 1992-07-23 | Method for preparing indica-japonica hybrid rice seeds by low-temperature castration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92107067A CN1035353C (en) | 1992-07-23 | 1992-07-23 | Method for preparing indica-japonica hybrid rice seeds by low-temperature castration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1082811A true CN1082811A (en) | 1994-03-02 |
| CN1035353C CN1035353C (en) | 1997-07-09 |
Family
ID=4942632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92107067A Expired - Fee Related CN1035353C (en) | 1992-07-23 | 1992-07-23 | Method for preparing indica-japonica hybrid rice seeds by low-temperature castration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1035353C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102870614A (en) * | 2012-07-25 | 2013-01-16 | 乌鲁木齐余粮玉农业技术有限公司 | Corn yield increasing method by retarding normal growth of male tassels of corn |
| CN104429932A (en) * | 2015-01-04 | 2015-03-25 | 王开 | Novel indica-japonica hybrid gene introgression sheath blight resistance breeding method |
| CN104521758A (en) * | 2015-01-04 | 2015-04-22 | 安徽袁粮水稻产业有限公司 | New breeding method for resisting rice blast through indica-japonica hybrid gene introgression |
| CN104521744A (en) * | 2015-01-04 | 2015-04-22 | 黎建波 | New bacterial-blight-resisting japonica rice breeding method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1028471C (en) * | 1990-07-17 | 1995-05-24 | 邓祚荣 | Two-line method indica-japonica subspecies cross breeding technology |
-
1992
- 1992-07-23 CN CN92107067A patent/CN1035353C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102870614A (en) * | 2012-07-25 | 2013-01-16 | 乌鲁木齐余粮玉农业技术有限公司 | Corn yield increasing method by retarding normal growth of male tassels of corn |
| CN104429932A (en) * | 2015-01-04 | 2015-03-25 | 王开 | Novel indica-japonica hybrid gene introgression sheath blight resistance breeding method |
| CN104521758A (en) * | 2015-01-04 | 2015-04-22 | 安徽袁粮水稻产业有限公司 | New breeding method for resisting rice blast through indica-japonica hybrid gene introgression |
| CN104521744A (en) * | 2015-01-04 | 2015-04-22 | 黎建波 | New bacterial-blight-resisting japonica rice breeding method |
| CN104521758B (en) * | 2015-01-04 | 2017-03-29 | 安徽袁粮水稻产业有限公司 | A kind of Xian Jing hand over gene introgression blast resisting breeding new method |
| CN104521744B (en) * | 2015-01-04 | 2017-06-13 | 浙江原态农业股份有限公司 | A kind of bacterial leaf spot resistance Japonica two line hybrid rice method |
| CN104429932B (en) * | 2015-01-04 | 2017-06-20 | 兰进好 | A kind of Xian round-grained rice hands over the anti-banded sclerotial blight breeding new method of gene introgression |
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| Publication number | Publication date |
|---|---|
| CN1035353C (en) | 1997-07-09 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |