CN1600076A - Method for breeding hybrid corn in use as for both foodstuff and feedstuff - Google Patents
Method for breeding hybrid corn in use as for both foodstuff and feedstuff Download PDFInfo
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- CN1600076A CN1600076A CN 03143353 CN03143353A CN1600076A CN 1600076 A CN1600076 A CN 1600076A CN 03143353 CN03143353 CN 03143353 CN 03143353 A CN03143353 A CN 03143353A CN 1600076 A CN1600076 A CN 1600076A
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Abstract
A method for breeding the hybridized corn used as both human food and animal's feed includes choosing the Wuhan high-yield variant and Hainan crossed variant as parents, selfing for selective breeding, pollinating with two kinds of pollen to a single ear at different times in S3 for early generation test, and using DNA molecular labeling technique is S4 for electropherogram discrimination and genetic relation division.
Description
Affiliated technical field
The present invention relates to a kind of grain and raise the breeding method of dual-purpose corn hybrid seed, be with numerous fine combination gene colony specifically, use " two kinds of fringes; every the time pollination " method, improve breeding method, improved breeding efficiency, selected " Golden Elephant 4C " and " Golden Elephant 55 ", the preparing hybrid kind " No. one, Golden Elephant " and method.
Background technology
Corn is that China also is world's staple food crop, and cultivated area and gross output be second son paddy rice and wheat only, occupies the 3rd, and per unit area yield occupies first of the crop.In recent years, because China has solved problem of food and clothing on the whole, the great development of world's livestock breeding, the corn industrial rise, the whole world will heighten to the demand of corn.Expectation is in the period of 10-15, and whole world corn area reaches 14000-15000 ten thousand hm
2, corn unit yield 4500-5000kg, world's corn yield can reach hundred million tons of 6.3-7.5.Usually adopt method breedings such as second cycle line and samsara seed selection at present, the shortcoming of this breeding method is that breeding cycle is long.
Goal of the invention
How anti-utilize the method for dna molecular marker technology and " two kinds of fringes, every time pollination " to select coordinate force, and plant type is good, and the fringe position is low, and the high good inbred line of moderate self output in vegetative period shortens breeding cycle, improves efficiency of selection.And then assembly goes out, and yield potential is big, and yield stability is good, and is best in quality, high anti-multiple diseases, and wide adaptability, the grain that hybrid vigour is strong are raised the dual-purpose corn hybrid seed.
Summary of the invention
A kind of grain is raised the breeding method of dual-purpose hybrid maize, comprising: select the corn super large fringe qualitative variation strain of the good Wuhan Shinco of the high comprehensive proterties of output and the corn hybrid seed variant composition basic population that draw back in Hainan to carry out inbred line breeding.In basic population, seed, plant type, fringe position, disease resistance are carried out selfing select.At S
3With the method for " two kinds of fringes, every time pollination ", the coordinate force of inbred line is carried out early generation test.At S
4Use the dna molecular marker technology, the standard inbred fruit ear of per generation inbred line emphasis improvement proterties is carried out electrophoresis pattern is identified and the affiliation division.Selected genetic abundant kind super large fringe corn, Hainan corn hybrid seed carries out different friendship and improves kind of a property, sets up basic population.Use the method for " two kinds of fringes, every time pollination ", eliminate a large amount of not strong segregative lines of coordinate force in early days, reduce workload, shortening the breeding cycle, use the dna molecular marker technology simultaneously and combine, breeding speed has been accelerated in autotelic assembly combination, has improved breeding efficiency.Selected the output height, quality better, the new inbred line of the corn that coordinate force is high " Golden Elephant 4C " and " Golden Elephant 55 ".Selected the output height, quality better, disease resistance is strong, and wide adaptability, quality better, grain are raised dual-purpose maize new varieties " No. one, Golden Elephant ".
Concrete steps
First step work: set up the excellent genes storehouse, by breeding objective, seed selection high-quality, high yield, stable yields, comprehensive resistance is good, adaptable super large fringe corn is selected based on high yield the kind that genetic character is abundant, the therefrom different friendship of roguing improves kind of a property, forms " 4C " and " 55 " gene pool roguing selfing.
Second step work: S3 is for utilizing " two kinds of fringes; every the time pollination " method is to basic population, carry out the first pacing of coordinate force and join, i.e. at first bagging selfing of selection criteria strain was hybridized testting the pollen of planting through 4-5 days again, like this on a fruit ear, both obtained the inbred line of fruit ear bottom, the hybrid seed on the fruit ear top of getting back, the not strong segregative line of coordinate force that forepart elimination is a large amount of, reduce workload, accelerate breeding speed.
The 3rd step work: the inbred line of protecting is utilized the dna molecular marker technology through inbreeding of more generation, selfing fruit ear to the standard selected, carry out the division of electrophoresis pattern and affiliation monoid, purpose assembly combination is arranged, identify the product ratio through combining ability test and hybrid combination, it is good to filter out economical character, and comprehensive resistance is good, wide adaptability, the inbred line that coordinate force is high " Golden Elephant 4C " and " Golden Elephant 55 " acquisition " No. one, Golden Elephant " corn hybrid seed.
The work of the 4th step: inbred line " Golden Elephant 4C " and inbred line " Golden Elephant 55 " original seed be self propagated respectively, does maternal and the paternal hybrid production of hybrid seeds respectively with inbred line " Golden Elephant 4C " and " Golden Elephant 55 ".
Claims (5)
1, a kind of grain is raised the breeding method of dual-purpose hybrid maize, comprising:
1.1 select the corn super large fringe qualitative variation strain of the good Wuhan Shinco of the high comprehensive proterties of output and the corn hybrid seed variant composition basic population that draw back in Hainan to carry out inbred line breeding.
1.2 in basic population, seed, plant type, fringe position, disease resistance are carried out selfing select.
1.3 at S
3With the method for " two kinds of fringes, every time pollination ", the coordinate force of inbred line is carried out early generation test.
1.4 at S
1Use the dna molecular marker technology, the standard inbred fruit ear of per generation inbred line emphasis improvement proterties is carried out electrophoresis pattern is identified and the affiliation division.
2, a kind of grain according to claim 1 breeding method of raising the dual-purpose hybrid maize is characterized in that: selected genetic abundant kind super large fringe corn, Hainan corn hybrid seed carries out different friendship and improves kind of a property, sets up basic population.
3, the breeding method of raising the dual-purpose hybrid maize according to claim 1 and 2 described a kind of grains, it is characterized in that: use " two kinds of fringes; every the time pollination " method, eliminate a large amount of not strong segregative lines of coordinate force in early days, reduce workload, shortening the breeding cycle, using the dna molecular marker technology simultaneously combines, breeding speed has been accelerated in autotelic assembly combination, has improved breeding efficiency.
4, the breeding method of raising the dual-purpose hybrid maize according to claim 1 and 2 described a kind of grains is characterized in that: selected the output height, quality better, the new inbred line of the corn that coordinate force is high " Golden Elephant 4C " and " Golden Elephant 55 ".
5, the breeding method of raising the dual-purpose hybrid maize according to claim 1 and 2 described a kind of grains is characterized in that: selected the output height, and quality better, disease resistance is strong, wide adaptability, quality better, grain are raised dual-purpose maize new varieties " No. one, Golden Elephant ".
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143353 CN1600076A (en) | 2003-09-27 | 2003-09-27 | Method for breeding hybrid corn in use as for both foodstuff and feedstuff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03143353 CN1600076A (en) | 2003-09-27 | 2003-09-27 | Method for breeding hybrid corn in use as for both foodstuff and feedstuff |
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| Publication Number | Publication Date |
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| CN1600076A true CN1600076A (en) | 2005-03-30 |
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| CN 03143353 Pending CN1600076A (en) | 2003-09-27 | 2003-09-27 | Method for breeding hybrid corn in use as for both foodstuff and feedstuff |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619362B (en) * | 2009-08-06 | 2011-09-28 | 安徽农业大学 | Molecular marker of corn ae gene and obtaining method and application thereof |
| CN102792882A (en) * | 2012-06-05 | 2012-11-28 | 张掖市金友种业有限责任公司 | Method for breeding corn self-bred lines supplementarily and measuring combining ability |
| CN104782410A (en) * | 2015-03-25 | 2015-07-22 | 河南农业大学 | Identification method for maize variety resistance to ralstonia solanacearum |
| CN108617417A (en) * | 2018-01-19 | 2018-10-09 | 西北农林科技大学 | The identification method of Guanzhong Region, Shaanxi Province, China forage grass type wheat breed/strain |
-
2003
- 2003-09-27 CN CN 03143353 patent/CN1600076A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101619362B (en) * | 2009-08-06 | 2011-09-28 | 安徽农业大学 | Molecular marker of corn ae gene and obtaining method and application thereof |
| CN102792882A (en) * | 2012-06-05 | 2012-11-28 | 张掖市金友种业有限责任公司 | Method for breeding corn self-bred lines supplementarily and measuring combining ability |
| CN104782410A (en) * | 2015-03-25 | 2015-07-22 | 河南农业大学 | Identification method for maize variety resistance to ralstonia solanacearum |
| CN104782410B (en) * | 2015-03-25 | 2017-10-27 | 河南农业大学 | A kind of authentication method of corn variety Resistance to bacterial wilt |
| CN108617417A (en) * | 2018-01-19 | 2018-10-09 | 西北农林科技大学 | The identification method of Guanzhong Region, Shaanxi Province, China forage grass type wheat breed/strain |
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