CN101707978A - Method for breeding maize inbred line - Google Patents
Method for breeding maize inbred line Download PDFInfo
- Publication number
- CN101707978A CN101707978A CN200910094885A CN200910094885A CN101707978A CN 101707978 A CN101707978 A CN 101707978A CN 200910094885 A CN200910094885 A CN 200910094885A CN 200910094885 A CN200910094885 A CN 200910094885A CN 101707978 A CN101707978 A CN 101707978A
- Authority
- CN
- China
- Prior art keywords
- china ink
- inbred line
- selfing
- black
- generations
- 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.)
- Pending
Links
Landscapes
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
The invention relates to seed production technology for maize hybrid seeds, and belongs to the technical field of agricultural bred new seeds. NO.1 black-white introduced from Mexico is continuously bred and inbred for 5 generations to select the inbred line black 322; and the black 322 serving as a female parent and the inbred line B255 introduced from America serving as a male parent are prepared into black 322*B255 hybrid seeds, and the inbred line is inbred and selected through continuous 6 generations to obtain inbred line black 255. The selected inbred line 255 has the advantages of short stalk, multi-disease resistance, stable hereditary character and high common combining ability, and is an excellent inbred line for preparing the maize hybrid seeds.
Description
Technical field
The present invention relates to a kind of seeding technique of corn hybrid seed, belong to the technical field of agriculture seed selection novel species.
Background technology
Corn inbred line is the basis of corn hybrid use of advantage, preparing hybrid kind.Corn has corresponding adaptability to environment, make the corn hybrid seed of high yield, high-quality, many anti-, wide adaptabilities, and it is crucial selecting the good inbred line of hereditary capacity.But inbred line increases because of propagation generation, uses the age to increase, and can occur that vitality is weak, disease resistance reduces, degradation phenomenon under the reproductive output, causes the crossbreed resistance that makes poor, yields poorly.Therefore be badly in need of the corn inbred line that seed selection makes new advances and satisfy the demand of preparing new hybrid.
Summary of the invention
Technical problem to be solved by this invention provides a kind of selection of corn inbred line China ink 255, and the crossbreed of institute's seed selection has short bar, anti-multiple diseases, stabilization characteristics of genetics, advantage that general combining ability is high.
Solving the scheme that technical problem of the present invention adopts is: with Mexico's introduced variety China ink white 5 generations of plantation selfing continuously, select inbred line China ink 322; With China ink 322 be female parent, and introducing inbred line B255 with the U.S. is male parent, obtains China ink 322 * B255 hybrid seed, again through continuous 6 generation selfed breeding to obtain handing over be black 255.
In the white No. one selfed breeding China ink 322 of China ink of the present invention, menu strain artificial bagging is isolated before blooming, and overlap male flower the previous day when weaving silk loose powder, gathers pollen and invest that this strain is female to be taken when the next morning blooms, and put paper bag once more.
Of the present invention black 322 with B255 hybridization in, the pedestrian worker's bagging that advances of blooming is isolated, and when weaving silk loose powder, gathers the pollen of male parent B255 and authorizes maternal China ink 322; In the selfing of China ink 322 * B255 crossbreed, menu strain artificial bagging selfing before blooming, in two generations of selfing, begin to select short bar, disease-resistant individual plant selfing.
The concrete technical measures of taking during hybrid seeding are as follows:
1, choosing ground with isolate: select that physical features is smooth, irrigation and drainage convenient, the plantation of the plot of medium above fertility, more than other corns isolation 500m.
2, proper seeding: when soil stabilization is stablized by 10 ℃, can sow, sow in spring in the area, Yunnan and generally can sow at late March.
3, rational close planting: general mu of 5000 strains of keeping a full stand of seedings are advisable.
4, roguing: for guaranteeing to breed parental purity, should carry out three impurity eliminations, remove assorted seedling, sick seedling, bad seedling in seedling stage, shooting stage, before taking out male loose powder.Sort out assorted fringe, mould grain, mould fringe during results.
5, fertilizing amount: enrich farmyard manure, mu is executed general calcium 40kg, potash fertilizer 10kg, and mu is executed urea 50kg.
The standard of inbred line China ink 255
China ink 255 belongs to middle lately ripening variety, emerges to ripe 125 days seedling bud scale purple, leaf green, plant height 140cm, the high 30cm in fringe position, 18 of the numbers of blade, half is upright, male flower grain husk shell purple, 14 of branches, the flower pesticide yellow, pollen amount is big, female Honoka silk green, fruit ear taper, spike length 14cm, 12-14 is capable for the thick 3.8cm tassel row number of fringe, several 28 of row grain, grain white, solids type, cob white, 100-grain weight 24g, Chinese People's Anti-Japanese Military and Political College's helminthosporium maydis, rust, sense ear rot.
The invention has the beneficial effects as follows:
1, black 255 inbred lines have short, the anti-dense planting of plant height, improve reproductive output, reduce advantages such as breeding land used, disease-resistanting leaf spot.
2, black 255 inbred lines are produced hybrid seed as the parent, can improve the ability of offspring's disease-resistanting leaf spot, increase output, the fruit ear fecundity is strong, does not have bald point, and heritability is strong, has improved the ripening rate of filial generation, reduces bald point, increases output.
3, black 255 inbred line male flower pollen amounts are big, and black 255 inbred lines are produced crossbreed as male parent, and sufficient pollen can be provided, and improve the pollination rate, increase the seed output.
4, this inbred line general combining ability height as parent and other hybridization between selfed lines, easily makes the higher corn hybrid seed of output with black 255 inbred lines.
5, the selection of this inbred line is the conventional breeding method, and the natural ecological condition of breeding ground is representative strong, does mutually by gene and environment, and the inbred line China ink of selecting 255 has stronger adaptability, and filial generation also has stronger adaptability simultaneously.
Description of drawings
Fig. 1 is a production of hybrid seeds schematic diagram of the present invention.
Embodiment
Embodiment:
Adopt the white corn kind of Mexico's introduced variety China ink, plant 5 generations of selfing continuously, can select inbred line China ink 322.With China ink 322 be female parent, and the inbred line B255 that introduces with the U.S. is a male parent, obtains China ink 322 * B255 hybrid seed after the plantation, again through continuous 6 generation selfed breeding to obtain at last handing over be black 255.
In above-mentioned black white No. one selfed breeding China ink 322, answer menu strain artificial bagging to isolate before blooming, overlap male flower the previous day when weaving silk loose powder, gathers pollen and invest that this strain is female to be taken when the next morning blooms, and put paper bag once more.
In China ink 322 and B255 crossover process, should carry out artificial bagging before blooming and isolate, when weaving silk loose powder, gather the pollen of male parent B255 and authorize maternal China ink 322; In the selfing process of China ink 322 * B255 crossbreed, menu strain artificial bagging selfing before blooming, in two generations of selfing, begin to select short bar, disease-resistant individual plant selfing.
The concrete technical measures of taking during hybrid seeding are as follows:
1, choosing ground with isolate: select that physical features is smooth, irrigation and drainage convenient, the plantation of the plot of medium above fertility, more than other corns isolation 500m.
2, proper seeding: when soil stabilization is stablized by 10 ℃, can sow, sow in spring in the area, Yunnan and generally can sow at late March.
3, rational close planting: general mu of 5000 strains of keeping a full stand of seedings are advisable.
4, roguing: for guaranteeing to breed parental purity, should carry out three impurity eliminations, remove assorted seedling, sick seedling, bad seedling in seedling stage, shooting stage, before taking out male loose powder.Sort out assorted fringe, mould grain, mould fringe during results.
5, fertilizing amount: enrich farmyard manure, mu is executed general calcium 40kg, potash fertilizer 10kg, and mu is executed urea 50kg.
Claims (3)
1. the selection of a corn inbred line China ink 255 is characterized in that: with Mexico's introduced variety China ink white 5 generations of plantation selfing continuously, select inbred line China ink 322; With China ink 322 be female parent, and introducing inbred line B255 with the U.S. is male parent, obtains China ink 322 * B255 hybrid seed, again through continuous 6 generation selfed breeding to obtain handing over be black 255.
2. the selection of corn inbred line China ink 255 according to claim 1, it is characterized in that: in the white No. one selfed breeding China ink 322 of China ink, menu strain artificial bagging is isolated before blooming, overlap male flower the previous day when weaving silk loose powder, when the next morning blooms, gather pollen and invest that this strain is female to be taken, and put paper bag once more.
3. the selection of corn inbred line China ink 255 according to claim 2 is characterized in that: in China ink 322 was hybridized with B255, the pedestrian worker's bagging isolation of advancing of blooming when weaving silk loose powder, was gathered the pollen of male parent B255 and is authorized maternal China ink 322; In the selfing of China ink 322 * B255 crossbreed, menu strain artificial bagging selfing before blooming, in two generations of selfing, begin to select short bar, disease-resistant individual plant selfing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910094885A CN101707978A (en) | 2009-08-26 | 2009-08-26 | Method for breeding maize inbred line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910094885A CN101707978A (en) | 2009-08-26 | 2009-08-26 | Method for breeding maize inbred line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101707978A true CN101707978A (en) | 2010-05-19 |
Family
ID=42400803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910094885A Pending CN101707978A (en) | 2009-08-26 | 2009-08-26 | Method for breeding maize inbred line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101707978A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102884977A (en) * | 2012-10-18 | 2013-01-23 | 山西屯玉种业科技股份有限公司 | Breeding method of maize inbred line with high resistance, stable yield and high combining ability |
| CN103503766A (en) * | 2013-05-22 | 2014-01-15 | 云南石丰种业有限公司 | Crossbreeding method of corn |
| CN106386464A (en) * | 2016-09-26 | 2017-02-15 | 四川鑫万发种子科技有限公司 | Corn parental inbred line breeding method |
| CN107439367A (en) * | 2017-08-28 | 2017-12-08 | 山东登海宇玉种业有限公司 | A kind of high yield and high quality, good stress resistance corn hybrid seed selection |
| CN107853169A (en) * | 2017-11-17 | 2018-03-30 | 河北理查德农业科技有限公司 | The cross breeding method of corn of short stem |
-
2009
- 2009-08-26 CN CN200910094885A patent/CN101707978A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102884977A (en) * | 2012-10-18 | 2013-01-23 | 山西屯玉种业科技股份有限公司 | Breeding method of maize inbred line with high resistance, stable yield and high combining ability |
| CN103503766A (en) * | 2013-05-22 | 2014-01-15 | 云南石丰种业有限公司 | Crossbreeding method of corn |
| CN106386464A (en) * | 2016-09-26 | 2017-02-15 | 四川鑫万发种子科技有限公司 | Corn parental inbred line breeding method |
| CN107439367A (en) * | 2017-08-28 | 2017-12-08 | 山东登海宇玉种业有限公司 | A kind of high yield and high quality, good stress resistance corn hybrid seed selection |
| CN107439367B (en) * | 2017-08-28 | 2019-08-23 | 山东登海宇玉种业有限公司 | A kind of high yield and high quality, good stress resistance corn hybrid seed selection |
| CN107853169A (en) * | 2017-11-17 | 2018-03-30 | 河北理查德农业科技有限公司 | The cross breeding method of corn of short stem |
| CN107853169B (en) * | 2017-11-17 | 2020-08-21 | 河北理查德农业科技有限公司 | Crossbreeding method of dwarf maize |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103355159A (en) | Perennial forage maize breeding method | |
| CN101790957A (en) | Breeding method for maize inbred line | |
| CN101707978A (en) | Method for breeding maize inbred line | |
| CN100397977C (en) | Breed method for rice reproduction heterosis fixation | |
| CN102138517A (en) | Breeding method for maize variety | |
| CN103461101B (en) | Stemless cucurbita maxima breeding method | |
| WO2009152771A1 (en) | Mechanized seed production method for hybrid crops | |
| CN113508749A (en) | High-oil waxy corn hybridization breeding method | |
| CN103355080A (en) | Culturing method of perennial forage maize | |
| CN102100175A (en) | Breeding and hybrid seed-producing method of onion male sterile line | |
| CN105028182A (en) | Seed preparation method for waxy maize hybrids of Zhenuoyu 7 | |
| CN115669530B (en) | Rice sorghum breeding method | |
| CN105850723A (en) | Corn hybrid seed production method | |
| CN102668975A (en) | Method for producing seed by using three-line hybrid rice sterile line with purple leaf marker | |
| CN104521739A (en) | Breeding method of hybrid corn seeds | |
| CN104641849A (en) | Seed production method for hybrid corn | |
| CN111837940B (en) | Method for producing seeds of corn plant holomorphic single cross hybrid | |
| CN108739363A (en) | A kind of method of efficient selection and breeding drought resisting high-yield rice breeding material | |
| CN113475391A (en) | High-yield silage corn crossbreeding method | |
| CN101707975A (en) | Method for producing maize hybrid seed | |
| CN113615570A (en) | Method for breeding maize inbred line resistant to ear rot | |
| CN103609430B (en) | Method for selecting and reproducing early-flowering late japonica rice sterile line Zhe japonica rice 4A with high stigma exposure rate | |
| CN104996293A (en) | Seed production method for sweet corn hybrid--Zhetian No. 11 | |
| CN101707974A (en) | Method for producing seeds by hybridizing maize varieties | |
| CN101999310A (en) | Breeding and reproducing method of indica rice male sterile line Zhenxian 1A with high quality, rice blast resistance and high combining ability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100519 |