CN101889540A - Seed production method for high-oil corn seeds - Google Patents
Seed production method for high-oil corn seeds Download PDFInfo
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- CN101889540A CN101889540A CN2010102167523A CN201010216752A CN101889540A CN 101889540 A CN101889540 A CN 101889540A CN 2010102167523 A CN2010102167523 A CN 2010102167523A CN 201010216752 A CN201010216752 A CN 201010216752A CN 101889540 A CN101889540 A CN 101889540A
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Abstract
The invention relates to a seed production method for high-oil corn seeds, and belongs to the field of hybrid seed production of crops. In the method, a novel hybrid combination of T5636 and TB2 bred by a special combining ability (SCA) determination group is adopted, wherein the female parent T5636 is bred in 2005 by performing mixed pollination on American hybrids to form groups and performing continuous inbreeding on a selected plant for multiple generations; and the male parent TB2 is a high-oil corn inbred line which is bred in 2002 by hybridizing two inbred materials of a high-oil corn collective species Alexho subjected to recurrent selection and performing inbreeding selection for multiple generations. The seeds have the advantages of high oil yield, resistance to various diseases and mature living stems.
Description
Technical field:
The present invention relates to the seed production technique of corn hybrid seed, belong to the field of agriculture seed selection new varieties.
Background technology:
China is Maize Production big country, and cultivated area is only second to the U.S. more than 3.5 hundred million mu.But for a long time, corn quality there is no and obtains too big improvement, is difficult to satisfy the needs that China's food and deep processing already develop rapidly.High oil corn is compared with conventional corn, and not only oil content improves greatly, and protein, lysine, vitamin A, E equal size also is much higher than conventional corn, and total added value is high more than 10%, be a kind of high-quality high energy oil, grain, raise and the raw material of industry.In the past few years, the economic benefit that high oil corn is huge just progressively manifests.
Summary of the invention:
The object of the invention is to provide that a kind of high oil, green grass or young crops are raised, the producing method for seed of the corn hybrid seed of quality better.
A kind of producing method for seed of high oil corn kind is realized by following measure:
The new combination of a hybridization of adopting the seed selection of SCA combining ability test group to form, combination: T5636 * TB2, maternal T5636 is after U.S.'s crossbreed mixed pollination is formed colony, the continuous selfing of the continuous selfing of roguing many generations, seed selection in 2005 forms, after male parent TB2 was 2 selfing material hybridization of high oil corn synthetic variety Alexho recurrent selection, the high oil corn self interweaving series of breeding through the inbreeding of more generation selection was bred in 2002.
The seed seed yellow of using producing method for seed of the present invention to produce, solids type, cob white.The plant type hemicompact is gathered, about 240 centimetres of plant heights, and about 95 centimetres of fringe positions become strain number of blade 18-20 sheet.In the seedling gesture, the leaf sheath purple, leaf green, blade is long narrow, is subjected to light situation good.The flower pesticide purple, the filigree purple, the long cartridge type of fruit ear, about spike length 20-22 centimetre, tassel row number 16-18 is capable, thick 5.2 centimetres of fringe, thick 3.3 centimetres of axle.The cob redness, the seed yellow, the grain type is the solids type, thousand kernel weight 295 grams, seed-producing rate 83.8%.Anti-multiple diseases, the bar maturation of living.The quality standard that meets high oil corn.
612.6 kilograms/mu of per mu yields are amounted in live test of our unit's summer in 2008; Our unit's summer in 2009, live variety comparative test was amounted to 614.8 kilograms/mu of per mu yields
Suitable cornfield interplanting of this combination and summer are live, wait the capable cultivation of line-spacing or width, summer sowing 4000 strain/mus.Date of seeding, is by the end of May at the beginning of 6 months, about 96 days breeding times.Gently execute seed manure, heavy dressing ear manuer is mended granules application fertilizer.Multiple diseases such as the little leaf spot of the Chinese People's Anti-Japanese Military and Political College, smut, smut, virus disease, rust, attention control aphid and corn borer.
Embodiment:
The specific embodiment of the present invention is as follows:
Maternal: T5636 inbred line summer production of hybrid seeds 4000-4500 strain/mu.Sowing by the end of May-6 month.About 105 days breeding times, about 180 centimetres of plant heights, about 75 centimetres of fringe positions, the plant type hemicompact is gathered, bud scale purple, flower pesticide purple, filigree purple.The seed yellow, white axle semihard grain type, high disease-resistant, anti-.The topdressing method of method is attacked in summer production of hybrid seeds employing three.
Male parent: in the TB2 inbred line summer production of hybrid seeds 4000-4500 strain/mu, summer sowing by the end of May-6 month, breeding time about 90.About 170 centimetres of plant heights, about 75 centimetres of fringe positions, leaf sheath purple, filigree green, flower pesticide purple.The plant hemicompact is gathered, cob redness, yellow grain solids type.The production of hybrid seeds adopts a short management method on earth to guarantee hybrid seed yield.
Father and mother's one's own profession ratio is 1: 4, maternal thickness of sowing 3500-4000 strain/mu, and female parent is broadcast in male parent thickness of sowing 1000-1200 strain/mu earlier, broadcasts 1/2 male parent after 5 days, broadcasts other 1/2 male parent after 8 days.
Claims (1)
1. the producing method for seed of a high oil corn kind, the new combination of a hybridization that it is characterized in that adopting the seed selection of SCA combining ability test group to form, combination: T5636 * TB2, maternal T5636 is after U.S.'s crossbreed mixed pollination is formed colony, the continuous selfing of the continuous selfing of roguing many generations, seed selection in 2005 forms, and after male parent TB2 was 2 selfing material hybridization of high oil corn synthetic variety Alexho recurrent selection, the high oil corn self interweaving series of breeding through the inbreeding of more generation selection was bred in 2002.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102167523A CN101889540A (en) | 2010-07-05 | 2010-07-05 | Seed production method for high-oil corn seeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102167523A CN101889540A (en) | 2010-07-05 | 2010-07-05 | Seed production method for high-oil corn seeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101889540A true CN101889540A (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2010102167523A Pending CN101889540A (en) | 2010-07-05 | 2010-07-05 | Seed production method for high-oil corn seeds |
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| CN (1) | CN101889540A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053314A (en) * | 2013-01-15 | 2013-04-24 | 山东天泰种业有限公司 | High-oil corn high-yield cultivation method |
-
2010
- 2010-07-05 CN CN2010102167523A patent/CN101889540A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103053314A (en) * | 2013-01-15 | 2013-04-24 | 山东天泰种业有限公司 | High-oil corn high-yield cultivation method |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Ronghe Document name: Notification of Publication of the Application for Invention |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101124 |