CN107581052A - A kind of seed selection of corn variety and cultivation technique - Google Patents
A kind of seed selection of corn variety and cultivation technique Download PDFInfo
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- CN107581052A CN107581052A CN201610529689.6A CN201610529689A CN107581052A CN 107581052 A CN107581052 A CN 107581052A CN 201610529689 A CN201610529689 A CN 201610529689A CN 107581052 A CN107581052 A CN 107581052A
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Abstract
The present invention provides seed selection and the cultivation technique of a kind of corn variety, is related to a kind of planting technical field.The invention includes seed selection；Selection of land and fertilising；Plantation form and density；Field management and the prevention and control of plant diseases, pest control；Harvest in good time.Breeding high-yield of the present invention, stable yields, there is extensive adaptability, broad spectrum resistance, the corn hybrid seed that resistance is leading, commodity is excellent.
Description
Technical field
The present invention relates to a kind of planting technical field, seed selection and cultivation skill more particularly to a kind of corn variety
Art.
Background technology
Corn is one of Chinese Three major grain crops, and yield accounts for a quarter of national total output of grain.Zea is liked
Warm crop, there is plantation throughout the country, and China mainly has northeast spring maize, Huang-Huai-Hai plain corn and Mountain Area of Southwest hills beautiful
Meter San great corns ecotope.Although China's corn planting industry area is very big, per unit area yield is not high, therefore, improves the per unit area yield of corn
It is the important step of corn planting industry development from now on.Corn per unit area yield speedup has declined at present, and sown area quickly increases, total yield
Measure in the driving factors improved, sown area occupies main positions.In the back of the body that following maize sown area speedup will totally ease up
Under scape, corn yield sustainable growth will depend primarily upon the per unit area yield that thoroughbred development is brought and improve.Resistance to dense planting, comprehensive resistance are good, seed
Best in quality, the precocious and lodging resistance of grain is gradually the essential condition of corn variety promotion potential by force.
The content of the invention
Weak point present in regarding to the issue above, the present invention provide seed selection and the cultivation skill of a kind of corn variety
Art, make its breeding high-yield, stable yields, have extensive adaptability, broad spectrum resistance, resistance is leading, commodity is excellent corn miscellaneous
Hand over kind.
In order to solve the above problems, the present invention provides seed selection and the cultivation technique of a kind of corn variety, wherein, including with
Lower step：
S10, seed selection：Using self bred inbred line BY023 as female parent, BY021-3 is the seed of single cross that male parent assembles；
S20, selection of land and fertilising：The kind straw staygreen, belong to high stalk large-spike cultivar, manurial-philous water, comprehensive resistance is good, Ying Xuan
The plantation of middle fertility above plot is selected, is applied fertilizers scientifically, mu applies 2000 kilograms of farm manures, 50 kilograms of composite fertilizers, and 1 kilogram of zinc fertilizer does bottom
Fertilizer, promotion increase potash fertilizer；
S30, plantation form and density：Nonoculture and interplanting, 3000~3300 plants/acre of nonoculture density, interplanting 2800~
3000 plants/acre, in good time early sowing, culturing and transplanting seedlings, to save seedling, full stand, robust seedling from damage；
S40, field management and the prevention and control of plant diseases, pest control：Enhance field management, timely tillage and weeding, top dressing.Promotion increases fringe
Fertilizer, pay attention to the prediction and preventing and treating of pest and disease damage, prevent and treat maize borer in time, emphasis prevents the generation of bacterial wilt and banded sclerotial blight；
S50, in good time harvest.
Preferably, it is further comprising the steps of in the step S10：
Material based on S101, maternal BY023 are 78599 cenospecies introduced by the U.S., importing subtropical zone resource, 1998
Do paternal hybrid with Soviet Union's gulf No.1, by continuous selfing, selection for many years, by the measure and Resistance Identification seed selection of coordinate force and
Into；
S102, male parent BY021-3 are from 360 × Mo17 of pellet two rings choosing, using pedigree method by 360 × Mo17's of pellet
The continuous 5 generation selfing of elite plant fringe that F1 generation is selected, the high-combining ability finally obtained, resistance, the self-mating system of high yield.
Compared with prior art, the present invention has advantages below：
Breeding high-yield of the present invention, stable yields, there is extensive adaptability, broad spectrum resistance, resistance is leading, commodity is excellent
Corn hybrid seed.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, the present invention is made with reference to example
It is further described, but example is not as a limitation of the invention.
In embodiments of the invention,
First, breeding objective：
Free routine, breeding high-yield, stable yields, have extensive adaptability, broad spectrum resistance, resistance is leading, commodity is excellent
Good corn hybrid seed.
2nd, Breeding Process：
North examination 17 (north is beautiful No. 17) is using self bred inbred line BY023 as female parent, and BY021-3 is the seed of single cross that male parent assembles.
Material based on maternal BY023 is 78599 cenospecies introduced by the U.S., subtropical zone resource is imported, 1998 use Soviet Union
Gulf No.1 does paternal hybrid, by continuous selfing, selection for many years, by the measure and Resistance Identification of coordinate force, in 2001
Seed selection forms.
Two rings choosing systems of the male parent BY021-3 from 360 × Mo17 of pellet.Using pedigree method by 360 × Mo17 of pellet F1 generation
The continuous 5 generation selfing of elite plant fringe selected, the high-combining ability finally obtained, resistance, the self-mating system of high yield.
By doing female parent with BY023, BY021-3 does male parent and assembled into new cenospecies north examination 17 within 2003 (north is beautiful No. 17)
(BY023×BY021-3)。
Liaoning comparative test is participated within 2003,796 kilograms of average yield per mu, the volume increase of jade 39 14.35% redder than control, increases production pole
Significantly, yield occupies the 1st, and 8 pilots 7 increase 1 and subtracted.
Southwestern each province great Qu plantations adaptability comparative test is participated within 2004,706 kilograms of average yield per mu, is increased production than control
15.5%, volume increase is extremely notable, and yield occupies the 1st, and 14 pilots 12 increase 2 and subtracted.
645.7 kilograms of Guizhou Province's regional testing average yield per mu in 2005, No. 3 volume increase 10.47% more single than control peace, increases production pole
Significantly, yield occupies the 3rd, and 7 pilots 6 increase 1 and subtracted；
2006 710 kilograms of annual per mu yields, No. 3 volume increase 14.35% more single than control peace, volume increase is extremely notable, and yield occupies the 3rd
Position, 8 pilots 7 increase 1 and subtracted.
15 points 677.9 kilograms of average yield per mus in 2 years, No. 3 volume increase 12.48% more single than control peace.2005 and 2006 fraction of the year
The pilot yield for not having 85.7% and 87.5% exceedes control, average out to 86.6%.
572 kilograms of Guizhou Province's pilot production average yield per mu in 2007, than compareing the single 89-2 volume increase 6.62% of emerging Huang, yield occupies
7th, 80% pilot volume increase.
The corn variety authorization for having passed through Guizhou Province in 2008.
3rd, variety characteristic：
1st, morphological feature：265 centimetres of the kind plant height, 102 centimetres of fringe position, blade profile are relatively rushed, and plant type half is compact, and leaf color is deep
It is green, leaf sheath purple, the purple point of sterile lemma green band, flower pesticide purple, filigree green, go out 22, leaf, stipes 22 saves, thick 3.3 centimetres of stem, male
Branch of the ear of grain 12, florescence coordinate, straw staygreen.
2nd, panicled characters：The kind fruit ear cartridge type, the dent type of seed yellow half, 18.1 centimetres of spike length, bald sharp 0.8 centimetre,
Tassel row number 17.4, white axle, quality are excellent.
3rd, yield traits：General 236.7 grams of grain weight per panicle, 370 grams of mass of 1000 kernel, general 700 kilograms of per mu yield, high yield is reachable
900 kilograms, be high yield, the kind of stable yields.
4th, quality trait：
It is 753g/L to determine its unit weight through grain quality supervision and inspection center of the Ministry of Agriculture, crude protein (butt)
9.30%, crude fat (butt) 5.14%, Crude starch (butt) 74.81%, lysine (butt) 0.27%.
5th, resistance trait：0~3 grade of leaf blight, 0~3 grade of helminthosporium maydis, 0~3 grade of head smut, bacterial wilt average 3.0%,
0~5 grade of banded sclerotial blight.
6th, physiological characteristic：The kind belongs to high stalk large-spike cultivar, 127 days breeding times, identical with single No. 3 of CK peaces.The product
Kind yielding ability is good, and fruit ear is thick, and tassel row number is more, and comprehensive resistance is preferable.
4th, suitable planting region and cultural technigue：
1st, selection of land and fertilising
The kind straw staygreen, belong to high stalk large-spike cultivar, manurial-philous water, comprehensive resistance is good, should select more than middle fertility
Plant in plot.Apply fertilizers scientifically, mu applies 2000 kilograms of farm manures, 50 kilograms of composite fertilizers, and 1 kilogram of zinc fertilizer makees base fertilizer, and promotion increases potassium
Fertilizer.
2nd, form and density are planted
Nonoculture and interplanting, 3000~3300 plants/acre of nonoculture density, 2800~3000 plants/acre of interplanting, in good time early sowing,
Culturing and transplanting seedlings, to save seedling, full stand, robust seedling from damage.
3rd, field management and the prevention and control of plant diseases, pest control
Enhance field management, timely tillage and weeding, top dressing.Promotion increases ear manuer, pays attention to the prediction and preventing and treating of pest and disease damage,
Preventing and treating maize borer, emphasis prevent the generation of bacterial wilt and banded sclerotial blight in time.
4th, harvest in good time.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (2)
1. seed selection and the cultivation technique of a kind of corn variety, it is characterised in that comprise the following steps：
S10, seed selection：Using self bred inbred line BY023 as female parent, BY021-3 is the seed of single cross that male parent assembles；
S20, selection of land and fertilising：The kind straw staygreen, belong to high stalk large-spike cultivar, manurial-philous water, comprehensive resistance is good, should select fertilizer
The medium above plot plantation of power, applies fertilizers scientifically, and mu applies 2000 kilograms of farm manures, 50 kilograms of composite fertilizers, and 1 kilogram of zinc fertilizer makees base fertilizer,
Promotion increases potash fertilizer；
S30, plantation form and density：Nonoculture and interplanting, 3000~3300 plants/acre of nonoculture density, interplanting 2800~3000
Plant/acre, in good time early sowing, culturing and transplanting seedlings, to save seedling, full stand, robust seedling from damage；
S40, field management and the prevention and control of plant diseases, pest control：Enhance field management, timely tillage and weeding, top dressing.Promotion increases ear manuer, note
The prediction and preventing and treating of meaning pest and disease damage, prevent and treat maize borer, emphasis prevents the generation of bacterial wilt and banded sclerotial blight in time；
S50, in good time harvest.
2. seed selection and the cultivation technique of corn variety as claimed in claim 1, it is characterised in that in the step S10,
It is further comprising the steps of：
Material based on S101, maternal BY023 are 78599 cenospecies introduced by the U.S., subtropical zone resource is imported, 1998 use Soviet Union
Gulf No.1 does paternal hybrid, by continuous selfing, selection for many years, is formed by the measure and Resistance Identification seed selection of coordinate force；
S102, male parent BY021-3 are from 360 × Mo17 of pellet two rings choosing, using pedigree method by 360 × Mo17 of pellet F1 generation
The continuous 5 generation selfing of elite plant fringe selected, the high-combining ability finally obtained, resistance, the self-mating system of high yield.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109089789A (en) * | 2018-09-03 | 2018-12-28 | 中国农业科学院棉花研究所 | A method of determining that corn is suitable for group's capacity based on source and sink relation |
| CN109169253A (en) * | 2018-08-22 | 2019-01-11 | 贵州省旱粮研究所 | Method based on corn Suwan-lancaster unexpected mass incident self-mating system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102090324A (en) * | 2010-11-29 | 2011-06-15 | 山东冠丰种业科技有限公司 | High-yield and high-quality breeding method for new corn hybrid variety |
| CN102960241A (en) * | 2012-12-11 | 2013-03-13 | 云南西都种业有限责任公司 | Seed selection and breeding method of hybrid corn new species |
| CN105454031A (en) * | 2015-12-02 | 2016-04-06 | 云南北玉种子科技有限公司 | Cultivation method of high-yield and high-resistance corn |
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2016
- 2016-07-06 CN CN201610529689.6A patent/CN107581052A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102090324A (en) * | 2010-11-29 | 2011-06-15 | 山东冠丰种业科技有限公司 | High-yield and high-quality breeding method for new corn hybrid variety |
| CN102960241A (en) * | 2012-12-11 | 2013-03-13 | 云南西都种业有限责任公司 | Seed selection and breeding method of hybrid corn new species |
| CN105454031A (en) * | 2015-12-02 | 2016-04-06 | 云南北玉种子科技有限公司 | Cultivation method of high-yield and high-resistance corn |
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| 阮培均: "《贵州西部玉米栽培》", 31 January 2015, 中国农业科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109169253A (en) * | 2018-08-22 | 2019-01-11 | 贵州省旱粮研究所 | Method based on corn Suwan-lancaster unexpected mass incident self-mating system |
| CN109089789A (en) * | 2018-09-03 | 2018-12-28 | 中国农业科学院棉花研究所 | A method of determining that corn is suitable for group's capacity based on source and sink relation |
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