CN102090323A - Method for breeding high-yield maize hybrid - Google Patents
Method for breeding high-yield maize hybrid Download PDFInfo
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- CN102090323A CN102090323A CN2010105618892A CN201010561889A CN102090323A CN 102090323 A CN102090323 A CN 102090323A CN 2010105618892 A CN2010105618892 A CN 2010105618892A CN 201010561889 A CN201010561889 A CN 201010561889A CN 102090323 A CN102090323 A CN 102090323A
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Abstract
The invention discloses a method for breeding a high-yield maize hybrid. The method comprises the following steps of: preparing an inbred line crown 268 serving as a female parent and an inbred line 1058 serving as a male parent; repeatedly planting according to different densities; and performing evaluation tests at multiple points and different places to breed a new high-quality, high-yield and disease-resistant maize hybrid species, namely crown No.3, wherein the female parent crown 268 is an inbred line crown 268 with high general combining ability which is formed by hybridizing American commercial maize and agricultural maize 3138, performing six continuous generations of selfing to obtain a stable material, and selecting a disease-resistant and lodging-resistant head progeny row; and the male parent inbred line 1058 is an inbred line 1058 with high fecundity, high resistance, drought endurance and flood resistance, which is formed by hybridizing a Shanxi material and LX9801, alternatively and circularly performing generation increasing breeding in northern and southern areas by using a pedigree method and continuously selfing for four generations. Implementation indicates that the method is practical, successful and effective, and has the advantages of quick breeding progress and good implementation effect; and the new bred maize hybrid species, namely crown No.3, has high yield, good quality, wide adaptability and good development prospect.
Description
Technical field
The present invention relates to the crop breeding technology, relate in particular to the corn hybridization new variety selective breeding technology.
Background technology
Corn is one of China's staple food crop, in national economy and people's lives, occupy critical role, more than 300,000,000 mu of the long-term cultivated area of China, the newly-increased 1,000 hundred million jin of grain-production abilities planning in the whole nation (2009～2020) " propose, reach 11,000 hundred million jin/year to the year two thousand twenty China grain-production ability, increase by 1,000 hundred million jin than existing grain yield, wherein corn is 53,000,000,000 jin, Maize Production has been placed on the critical positions of grain-production, particularly the Yellow River and Huai He River Haiti district corn variety disease resistance is relatively poor for the northern area of China at present, easily lodge, output has much room for improvement.Increases in grain production, breeding are cultivated the high-yield corn new varieties in advance, to strengthening China's grain-production ability, realize the target that " planning " proposes, and have very important significance.
Summary of the invention
Purpose of the present invention just provides a kind of selection of high yield and high quality corn variety, and the improvement corn variety is accelerated replacement seed selection progress, selects good quality and high output, the disease-resistant anti-suitability corn variety that falls.
Task of the present invention is finished like this: the selection of studying a kind of high-yield corn hybrid, it is characterized in that being female parent, being that male parent is prepared for inbred line hat 268 with inbred line 1058 with free height, repeatedly plant according to different densities, through multiple spot strange land approval test, select high-quality, high yield, disease-resistant corn variety and be preced with rich No. 3.The seed selection of maternal inbred line hat 268, be with after american goods corn and the agricultural university's 3138 preparing hybrids combination,, obtain stabilizing material through continuous 6 generations selfing, select disease-resistantly anti-to fall, seed horse flute profile, glossiness head progeny row, form the high good inbred line hat 268 of general combining ability.The seed selection of male parent inbred line 1058, be after hybridizing with Shanxi material and LX9801, adopt pedigree method, add for breeding with southern alternate cycles in the north, accelerate the seed selection process, through continuously selfing 4 generation seed selection, form that fecundity is good, the good inbred line 1058 of strong stress resistance, drought-enduring waterlogging, wide adaptability.In regional test, sowed in flakes, gather in the crops in continuous 2 years, detect through grain quality supervision and inspection center of the Ministry of Agriculture (Beijing), the corn variety that the present invention selects is preced with rich No. 3, seed crude protein content 11.5%, crude fat content 5.5%, thick content of starch 70.8%, the heavy 721.7g/L of amount, lysine content 0.29% disease-resistantly anti-ly falls, good, the wide adaptability of fecundity, the general plot 650kg of test per mu yield, high yield plot 750kg, comparison obviously improves according to variety yield.
Implement, verify according to technique scheme, prove selection success of the present invention effectively, practical, be suitable for operation, the seed selection progress is fast, and implementation result is good, the corn hybridization new varieties that select are preced with that rich No. 3 quality are good, output is high, disease-resistantly anti-ly fall, drought-enduring waterlogging, adaptability is strong, be suitable for extensively promoting, reached predetermined purpose preferably in the Yellow River and Huai He River Haiti district.
Embodiment
Below the specific embodiment of the present invention further is illustrated.
The seed selection of maternal inbred line hat 268, be to carry out hybrid combination with american goods corn variety and agricultural university 3138, in Shandong, the breeding that circulates in turn of two places, Hainan, through continuous 6 generations selfing, obtain stabilizing material, select disease-resistant anti-fall, seed horse flute profile, glossiness head progeny row, join the general combining ability height through survey, breed inbred line hat 268 as maternal.The seed selection of male parent inbred line 1058 is with after Shanxi material and the LX9801 hybridization, adopts pedigree method, in Shandong, Hainan alternate cycles adds to be commissioned to train and educates, continuous 4 generations of seed selection selfing, screen disease-resistant anti-, good, the drought-enduring waterlogging seed of fecundity, breed inbred line 1058 and make male parent.Maternal inbred line hat 268 is prepared with male parent inbred line 1058, obtained good quality and high output, disease-resistantly anti-ly fall, adaptable corn hybridization new varieties are preced with rich No. 3, biological property is: the plant type compactness; about 100 days vegetative period, seedling leaf sheath aubergine, the bar maturation of living; plant height 265cm, fringe position 100cm, fruit ear tubular; spike length 18.3cm, the thick 5.3cm of fringe, average 17.6 row of tassel row number; 653 of grain number per spikes, thousand kernel weight 313.6g, seed yellow; the horse flute profile, seed-producing rate 84.4%.Vegetative period, characteristicness was: high resistance to bacterial wilt, short mosaic disease, and middle Chinese People's Anti-Japanese Military and Political College pinta, gall smut, anti-helminthosporium maydis, cane is tough and tensile, and is drought-enduring waterlogging, resistant to lodging, suitable planting density 3500～4500 strain/mus.Be preced with richly be suitable in Shandong No. 3, Hebei, Tianjin and the Yellow River and Huai He River Haiti district popularizing planting.
Technical solution of the present invention is perfect, and the seed selection progress is fast, effective, through implementing for many years, proves effectively success, and the per mu yield of high yield plot can reach more than the 900kg, has promotional value and bright development prospect widely.
Claims (3)
1. the selection of a high-yield corn hybrid, it is characterized in that being female parent, being that male parent is prepared for inbred line hat 268 with inbred line 1058 with free height, repeatedly plant according to different densities, through multiple spot strange land approval test, select high-quality, high yield, disease-resistant corn variety and be preced with rich No. 3.
2. according to the selection of the described high-yield corn hybrid of claim 1, it is characterized in that the seed selection of said maternal inbred line hat 268, be with after american goods corn and the agricultural university's 3138 preparing hybrids combination, through continuous 6 generations selfing, obtain stabilizing material, select disease-resistantly anti-to fall, seed horse flute profile, glossiness head progeny row, form the high good inbred line hat 268 of general combining ability.
3. according to the selection of the described high-yield corn hybrid of claim 1, it is characterized in that the seed selection of said male parent inbred line 1058, be after hybridizing with Shanxi material and LX9801, adopt pedigree method, add for breeding with southern alternate cycles in the north, accelerate the seed selection process, through selfing 4 generation seed selection continuously, form that fecundity is good, the good inbred line 1058 of strong stress resistance, drought-enduring waterlogging, wide adaptability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105618892A CN102090323A (en) | 2010-11-29 | 2010-11-29 | Method for breeding high-yield maize hybrid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105618892A CN102090323A (en) | 2010-11-29 | 2010-11-29 | Method for breeding high-yield maize hybrid |
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| CN102090323A true CN102090323A (en) | 2011-06-15 |
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| CN2010105618892A Pending CN102090323A (en) | 2010-11-29 | 2010-11-29 | Method for breeding high-yield maize hybrid |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613068A (en) * | 2012-03-01 | 2012-08-01 | 葫芦岛市种业有限责任公司 | Hybrid corn seed |
| CN105028174A (en) * | 2015-05-20 | 2015-11-11 | 阮积恩 | High-yield corn hybridization breeding method |
| CN107870226A (en) * | 2017-11-08 | 2018-04-03 | 上海应用技术大学 | Plant resistance to overhead flooding injury evaluation method |
| CN115623982A (en) * | 2022-09-09 | 2023-01-20 | 邯郸市农业科学院 | Breeding method of drought-tolerant and disease-resistant corn |
-
2010
- 2010-11-29 CN CN2010105618892A patent/CN102090323A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102613068A (en) * | 2012-03-01 | 2012-08-01 | 葫芦岛市种业有限责任公司 | Hybrid corn seed |
| CN105028174A (en) * | 2015-05-20 | 2015-11-11 | 阮积恩 | High-yield corn hybridization breeding method |
| CN107870226A (en) * | 2017-11-08 | 2018-04-03 | 上海应用技术大学 | Plant resistance to overhead flooding injury evaluation method |
| CN115623982A (en) * | 2022-09-09 | 2023-01-20 | 邯郸市农业科学院 | Breeding method of drought-tolerant and disease-resistant corn |
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Application publication date: 20110615 |