CN1036110C - Hybrid wheat seed producing technology with pollination in two system - Google Patents
Hybrid wheat seed producing technology with pollination in two system Download PDFInfo
- Publication number
- CN1036110C CN1036110C CN91106645A CN91106645A CN1036110C CN 1036110 C CN1036110 C CN 1036110C CN 91106645 A CN91106645 A CN 91106645A CN 91106645 A CN91106645 A CN 91106645A CN 1036110 C CN1036110 C CN 1036110C
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- China
- Prior art keywords
- wheat
- seed
- sterile
- pollination
- sowing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 241000209140 Triticum Species 0.000 title claims abstract description 30
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 30
- 230000010152 pollination Effects 0.000 title claims description 5
- 238000005516 engineering process Methods 0.000 title claims description 3
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- 238000009331 sowing Methods 0.000 claims description 13
- 230000036512 infertility Effects 0.000 claims description 4
- 230000008774 maternal effect Effects 0.000 claims description 4
- 238000009396 hybridization Methods 0.000 abstract description 7
- 230000035558 fertility Effects 0.000 abstract description 3
- 238000010899 nucleation Methods 0.000 abstract 2
- 206010021929 Infertility male Diseases 0.000 abstract 1
- 208000007466 Male Infertility Diseases 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000001902 propagating effect Effects 0.000 abstract 1
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 244000046109 Sorghum vulgare var. nervosum Species 0.000 description 1
- 238000009402 cross-breeding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
Landscapes
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
The present invention relates to a method for utilizing the heterosis of wheat. In the method, female parents grow and develop under different external environmental conditions by regulating the seeding areas and the seeding time of the female parents, or the fertility is caused and used for propagating the seeds of a sterile line, or the male sterility is caused and used for hybridizing with a restoring line to obtain the seeds of the first filial generations. In the present invention, the utilization of hybridization wheat turns true, and compared with conventional wheat, the yield of the hybridization wheat can be obviously increased.
Description
The present invention relates to a kind of method that obtains wheat hybridizing generation seed.
Crops first-filial generation has significant hybrid vigour.Three line method utilizes the technology of crop hybrid superiority, succeeds on Chinese sorghum, paddy rice.Human successively cultivated T, V, P, K, Y, faced the type male sterile line, and realized the three series mating of T type male sterile line from the nineteen fifty-one triple crossing wheat that begins one's study.1988, Chinese professor Zhang Qingqin of Guizhou Agriculture College bred Q type wheat male sterile line, and has realized three series mating.But be difficult to reasons such as cultivation owing to superior restorer line, hybrid wheat is not applied to produce so far.Three line method utilizes crop hybrid superiority, needs with maintenance line and male sterile line hybridization, breeding male sterile lines seed, with recovering system and male sterile line hybridization, obtain the first-filial generation seed, its three series mating again, screen strong excellent combination and production of hybrid seeds process and very bother, seed costs an arm and a leg.Changing three line method and be two is method, is breach highly visible in the present crossbreeding.Because two line method has not only saved the process of different friendship breeding male sterile lines seed, the hybridization cost is reduced significantly, the more important thing is that it is wide that the two line method sterility is recovered the source, is easy to the strong excellent combination of seed selection.At present, the existing double-hybrid rice strains in Hunan begins to use on producing, but does not also utilize the report of wheat heterosis both at home and abroad relevant for two line method.
Purpose of the present invention is exactly to create the method that a kind of two line method is produced hybrid wheat seed, and making than conventional wheat has the hybrid wheat of remarkable yield heterosis to be applied on producing, and has simplified the hybrid seed production routine.
Essence of the present invention is, by regulating the sowing ground of same female parent, it is seeded in two different regions of weather, causes it can educate on a ground, is used for self-fertility, the breeding male sterile lines seed; And it is sterile on another ground, be used for and recover system hybridizing, production first-filial generation wheat seed for example, with no sterility of anthers wheat HWS-1 in the Kunming summer sowing, can gather in the crops self-fruitful male-sterile seed September, and with it at the Changsha winter sowing, then sterile, can be to hybridize production first-filial generation wheat planting with recovering.In addition, can also be in same region by regulating maternal sowing time, cause or can educate, be used for self-fertility and reserve seed for planting; Or stem separates with the fertility of tillering, and promptly stem can be educated, tiller sterile or stem sterile, tiller and can educate, remove then and can educate part, leave and take sterile part, be used for and recover system's hybridization and obtain the first-filial generation wheat seed.As the HWS-2 wheat is sowed in the area, Changsha October, for educating, gather in the crops the self-fertility seed mid-May in next year, and the HWS-2 wheat is sowed November in the area, Changsha, fertility then takes place separates, and only stem and minority are tillered greatly and can be educated, majority is tillered for sterile, remove then and can educate part, leave and take sterile part, being used for recovering is hybridization production first-filial generation wheat seed.
The invention has the advantages that: 1 human long-awaited hybrid wheat is come true by ideal, thereby increase substantially yield of wheat, obtain huge economic benefit; 2〉the recovery source is extensive, has increased the chance of matching strong excellent combination greatly; 3〉male-sterile seed need not to obtain by different friendship, makes production of hybrid seeds program simplification, can reduce seed costs significantly.
Embodiment 1:
To not have sterility of anthers wheat HWS-1 in the Kunming summer sowing, can gather in the crops self-fruitful male-sterile seed September; With HWS-1 in Changsha and Hunan between extensive No. 1 one to number row winter sowing, HWS-1 is sterile, is its pollination of extensive No. 1 confession in Hunan by recovering, and can obtain the extensive No. 1 first-filial generation seed in HWS-1 and Hunan.
Embodiment 2:
Is the sowing in October with the HWS-2 wheat in Changsha area early sowing, and for educating, can gather in the crops the self-fertility seed mid-May in next year; Be the sowing in November with the HWS-2 wheat at area, Changsha late sowing in addition, then be sterile, perhaps only stem and minority are tillered greatly and can be educated, majority is tillered sterile, remove then and can educate part, leave and take sterile part, by with the recovery of planting therebetween be Hunan extensive No. 2 to its pollination, just obtain the extensive No. 2 first-filial generation seed in HWS-2 and Hunan.
Claims (3)
1, hybrid wheat two line method producing method for seed is characterized in that, by regulating the sowing ground of same maternal kind, it is grown under different external condition, causes or can educate, and is used for self-fertility and reserves seed for planting; Or male sterile, make its pollination with recovering system again, obtain hybrid wheat seed.
2, according to the hybrid wheat seed producing technology with pollination in two system under the claim 1, it is characterized in that used maternal kind is no sterility of anthers wheat HWS-1.
3,, it is characterized in that maternal kind HWS-1 is in the Kunming summer sowing, and is for educating, then sterile at the Changsha winter sowing according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91106645A CN1036110C (en) | 1991-03-09 | 1991-03-09 | Hybrid wheat seed producing technology with pollination in two system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91106645A CN1036110C (en) | 1991-03-09 | 1991-03-09 | Hybrid wheat seed producing technology with pollination in two system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1064584A CN1064584A (en) | 1992-09-23 |
| CN1036110C true CN1036110C (en) | 1997-10-15 |
Family
ID=4908033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91106645A Expired - Fee Related CN1036110C (en) | 1991-03-09 | 1991-03-09 | Hybrid wheat seed producing technology with pollination in two system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036110C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1037808C (en) * | 1993-02-23 | 1998-03-25 | 湖南觉民科技发展公司 | Method for selecting female parent of hybrid plant |
| CN1040609C (en) * | 1993-09-21 | 1998-11-11 | 王寿丰 | Continuation method of normal wheat male sterility controlled by pollen-entrained gene |
| CN1058134C (en) * | 1995-05-18 | 2000-11-08 | 西北农业大学 | Identification and selection for wheat breeding |
| CA2221103A1 (en) * | 1995-05-18 | 1996-11-21 | Juemin He | A novel method for producing plant hybrids |
| CN1064812C (en) * | 1995-12-22 | 2001-04-25 | 天津市农作物研究所 | Tech. for breeding K type hybridized wheat |
-
1991
- 1991-03-09 CN CN91106645A patent/CN1036110C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1064584A (en) | 1992-09-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |