CN102342243A - Production method for mechanized production of rice seed - Google Patents
Production method for mechanized production of rice seed Download PDFInfo
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- CN102342243A CN102342243A CN2010102441941A CN201010244194A CN102342243A CN 102342243 A CN102342243 A CN 102342243A CN 2010102441941 A CN2010102441941 A CN 2010102441941A CN 201010244194 A CN201010244194 A CN 201010244194A CN 102342243 A CN102342243 A CN 102342243A
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Abstract
The invention discloses a production method for mechanized production of rice seeds, which comprises the following steps: firstly cultivating a good sterile line and a restorer line with a close growth period, breeding a strong heterotic hybrid rice combination which is suitable for mechanized seed production, with parents of the hybrid combination as test carriers and through systemic research, implanting related genes into the sterile line or the restorer line, after pollination, constructing a brand new hybrid rice seed production technology system which is suitable for mechanized operations by a method of killing the male parent and harvesting the female parent; the invention solves the bottleneck problem for seed production of hybrid rice, realizes mechanized production, enlarges the production to be with a large scale and be intensive, increases the production efficiency, and reduces labor cost.
Description
Technical field
The present invention relates to a kind of production method of producing rice paddy seed, the production method of rice paddy seed is produced in a kind of specifically mechanization, belongs to the hybrid rice field.
Background technology
About 1,600 ten thousand hectares of the production area of the long-term hybrid rice of China needs about 2.4 hundred million kilograms of seed, and seed is produced area and needed 150,000 hectares approximately, is distributed in the rural area of economically underdeveloped area more.In recent years along with the fast development of rural economy; The seed production base of China each province all exists the practical problem that lack of labor, seed production cost increase, production of hybrid seeds area is difficult to implement to some extent, has seriously restricted the development of seed construction of base and seed industry.Main cause is: first: seed production technique is complicated; Mechanization degree is low, and the existing production technology of hybridized rice seed of China is to plant male parent earlier, and certain interval of time is planted maternal labor-intensive technology again; Lean on the manpower manual operations fully from being seeded into results; Operation is numerous and diverse, and whole production of hybrid seeds process need leans on a large amount of labours to carry out, and that production of hybrid seeds base can only be selected in is underdeveloped, carry out in the more rich rural area of labour.But a large amount of between twenty and fifty labour in production of hybrid seeds base goes out to go down town and works in recent years, causes most of base can not carry out the production of hybrid seeds again because of lacking necessary labour; Second: state-owned large-scale farm can't be carried out, because existing breeding technology for hybrid rice can not carry out mechanically actuated, area that economically developed mechanization degree is high and state-owned large-scale farm are difficult to carry out breeding of hybrid rice because of really lacking necessary labour; The the 3rd: be difficult to guarantee seed number and quality,, be difficult to guarantee needed seed number of grain-production and quality because present technology is single household's production of hybrid seeds.Paddy rice industry and grain security have been had a strong impact on.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of mechanization production, realize production scaleization, intensification, enhance productivity, reduce the production method of the mechanization production rice paddy seed of labour cost.
In order to solve the problems of the technologies described above, the present invention at first cultivates close excellent sterile system and recovery system of breeding time, and then selects the strong advantage hybrid rice combination that the suitable for mechanization seed is produced.Parents with hybrid combination are test carrier again; Through system research; Through male sterile line or recovery system are implanted related gene, maternal method is gathered in through killing male parent in the pollination back; Make up brand-new hybridization water seed production technique system that can suitable for mechanization operation, solve this breeding technology for hybrid rice bottleneck problem.
Described breeding time close excellent sterile system and recover system and be: male sterile line: green three A, kind power number: CNA20040631.1; Green 102S, kind power notification number: CNA004344E; Recover system: 2E06 (MC526) kind power notification number: CNA004342E.
The parents of described hybrid rice combination are: female parent: green three A, kind power number: CNA20040631.1; Green 102S, kind power notification number: CNA004344E; Male parent 9Z013,9Z127.
Male sterile line is selected: select flowering habit good, stigma exposing ratio is high, and outcrossing seed-setting rate is high, sowing to begin about 90-100 days breeding time of fringe phase with recover system broadcast, begin the phase of going through identical three be or two-line sterile line for maternal.
The present invention utilizes three kinds of mechanization means to realize the mechanized cultivation of rice paddy seed, and it is specially and shows as:
First kind of scheme is: select good green three A of flowering habit, green 102S etc. for maternal; The recovery system that MC526 contains the Bentazon sensitive gene is male parent; Before sowing; Evenly mix according to male parent and maternal 1: 5 ratio, with the wheat seeder direct-sowing dry or use the paddy planter water direct seeding, or artificial uniform broadcasting.Field management before the heading sees that according to normal management the fringe phase sprays Bentazon, and catch up with powder with the blower fan of power driven sprayer heading stage, and when ripe, male parent is dead, and maternal growth is normally carried out mechanical harvesting.
Recovering system cultivates: at first selecting the MC526 that contains the Bentazon sensitive gene for use is one of hybrid strain; Select high-qualitys such as 9311, disease-resistant, anti-another parent who falls to hybridize again; F2 selects for the spray Bentazon, selects the good individual plant of proterties stable until proterties by generation later on.
Second kind of scheme is: select good green three A of flowering habit, 102S etc. for maternal, 9Z013,9Z127 etc. is a male parent, selects improvement wheat seeder or improvement paddy planter for use; First left seed-box dress male parent seed; 2-6 later seed-box dress is maternal, from left to right, and the operation of S type; First plough is apart from 30 centimeters of second plough spacings, 15 centimeters of the spacings between 2-6 plough.Pollination is cut off male parent with portable 430 side hanging rice harvesters after finishing, and gathers in the crops with grain header when ripe.
Described 9Z013 is: use U.S. naked body rice to be female parent, 9311 are the recovery system that the successful proterties of paternal hybrid seed selection is stable, have anti-ly to fall, high-quality, high yield, characteristics that pollen amount is big.
Described 9Z127 is: for maternal, with 9803 choosing hybridization, the stable recovery system of proterties that breeds with D205 hybridization again has anti-ly to fall, high-quality, high yield, characteristics that pollen amount is big with dc machine/C143.
The duration from seeding to heading of two kinds of materials of described 9Z013 and 9Z127 is all identical with green 102S with green three A.
The third scheme is: will resist the rice herbicide gene to forward in the rice sterile line through sexual hybridization; Cultivate the antiweed male sterile line; Select the identical recovery system of duration from seeding to heading again; Prior to seeding according to 1: 5 mixed, with the wheat seeder direct-sowing dry or use the paddy planter water direct seeding, or artificial uniform broadcasting.Field management before the heading is according to normal management, and catch up with powder with the blower fan of power driven sprayer heading stage, when ripe, spray " cremart " and kills male parent, and maternal growth is normal, carries out mechanical harvesting.
The present invention has following remarkable advantages and beneficial effect:
1) can realize mechanization production, expanding the scale of production, intensive management;
2) enhance productivity, reduce labour cost.
Embodiment
In order to solve the problems of the technologies described above, the present invention at first cultivates close excellent sterile system and recovery system of breeding time, and then selects the strong advantage hybrid rice combination that the suitable for mechanization seed is produced.Parents with hybrid combination are test carrier again; Through system research; Through male sterile line or recovery system are implanted related gene, maternal method is gathered in through killing male parent in the pollination back; Make up brand-new hybridization water seed production technique system that can suitable for mechanization operation, solve this breeding technology for hybrid rice bottleneck problem.
No. 8 M systems are main body parent and wide affine bridge formation incross with agricultural; Be the responsive system of recovering of selection cross with good recovery again; Proterties is basicly stable promptly began to select in 1999 duration from seeding to heading close basically three be the male sterile line test cross, according to hybrid vigour and this duration from seeding to heading of father and mother, constantly adjust father and mother this; It is synchronous to obtain seed production florescence at last, commodity for hybrid vigour stronger " mix system No. one " " mix system No. two " etc. can the mixed seeding production of hybrid seeds combination.
Embodiment 1: it is maternal selecting good green three A of flowering habit, green 102S etc.; The recovery system that MC526 contains the Bentazon sensitive gene is male parent; Before sowing; Evenly mix according to male parent and maternal 1: 5 ratio, with the wheat seeder direct-sowing dry or use the paddy planter water direct seeding, or artificial uniform broadcasting.Field management before the heading sees that according to normal management the fringe phase sprays Bentazon, and catch up with powder with the blower fan of power driven sprayer heading stage, and when ripe, male parent is dead, and maternal growth is normally carried out mechanical harvesting.
Recovering system cultivates: at first selecting the MC526 that contains the Bentazon sensitive gene for use is one of hybrid strain; Select high-qualitys such as 9311, disease-resistant, anti-another parent who falls to hybridize again; F2 selects for the spray Bentazon, selects the good individual plant of proterties stable until proterties by generation later on.
Embodiment 2: it is maternal selecting good green three A of flowering habit, 102S etc., and 9Z013,9Z127 etc. is a male parent, selects improvement wheat seeder or improvement paddy planter for use; First left seed-box dress male parent seed; 2-6 later seed-box dress is maternal, from left to right, and the operation of S type; First plough is apart from 30 centimeters of second plough spacings, 15 centimeters of the spacings between 2-6 plough.After pollination finishes, fall male parent, gather in the crops with large-scale grain header when ripe with portable 430 side hanging paddy rice harvesting machine cuts.
Described 9Z013 is: use U.S. naked body rice to be female parent, 9311 are the recovery system that the successful proterties of paternal hybrid seed selection is stable, have anti-ly to fall, high-quality, high yield, characteristics that pollen amount is big.
Described 9Z127 is: for maternal, with 9803 choosing hybridization, the stable recovery system of proterties that breeds with D205 hybridization again has anti-ly to fall, high-quality, high yield, characteristics that pollen amount is big with dc machine/C143.
The duration from seeding to heading of two materials of described 9Z013 and 9Z127 is all identical with green 102S with green three A.
Embodiment 3: will resist the rice herbicide gene to forward in the rice sterile line through sexual hybridization; Cultivate the antiweed male sterile line; Select the identical recovery system of duration from seeding to heading again; Prior to seeding according to 1: 5 mixed, with the wheat seeder direct-sowing dry or use the paddy planter water direct seeding, or artificial uniform broadcasting.Field management before the heading is according to normal management, and catch up with powder with the blower fan of power driven sprayer heading stage, when ripe, spray " cremart " and kills male parent, and maternal growth is normal, carries out mechanical harvesting.
The result makes an experiment:
To spraying the dosage test of Bentazon among the embodiment 1: 1997 carry out different dosage tests, and the result shows that mu is executed 40ml (25% aqua, 1: 250 times of concentration; Down with) to its several nothings influences, mu is executed behind the 60ml medicine had seedling to hinder phenomenon in 7 days, recovered normal gradually in 10 days behind the medicine, mu is executed 80-120ml; 7 days seedling wounds are obvious and heavier behind the medicine, and 10 days fringe portions are dead behind the medicine, and mu is executed 180-240ml; 4 days seedlings are hindered obviously behind the medicine, increase the weight of in 7 days, and whole strain in 10 days is dead.The result shows that sensitive gene successfully has been transferred to build bridge and has recovered in the system.
Along with the middle choosing of strong advantage combination, must the centering choosing responsive system of recovering carry out lethal dose and tests, result in 2004 as follows:
The responsive recovery of table 1 is Bentazon lethal dose test (2004 Hefei)
Table 1 shows, under the consumption of mu with 600-800ml, can accomplish the end in view, and survival strain rate is at 0-1.1%.
Preferred compositions parents' experimental result:
Choosing combination parents' duration from seeding to heading in the table 2
| Group | Hainan numbering | The positive season performance in Hefei |
Table 2 finds out that middle choosing combination father and mother duration from seeding to heading originally is close, can carry out the mixed seeding production of hybrid seeds.Mixed seeding seed farm and conventional seed farm comparative result:
Fringe kernel structure between table 3 mixed seeding seed farm and conventional seed farm (2004. Hefei)
Table 3 is found out: the effective fringe of the individual plant of mixed seeding maternal breeding, the effective fringe of mu, every total grain panicle number, every fringe real grain number and ripening rate are all above contrast; Especially it is bigger to exceed amplitude with the effective fringe of mu, every fringe real grain number and ripening rate, and the result shows: the output of the contract plot mixed seeding production of hybrid seeds can be than conventional seeds for increasing yield more than 40% on the same group.
Mix the economic situation table as a result broadcast the production of hybrid seeds:
Choosing combination economic characters species test tables (2003. Hefei) in the table 4
Hybrid field economic characters performances (2004. Hefei) that table 5 " mixes system No. one "
Table 4,5 shows: the hybrid vigour of the combination of the ability mixed seeding production of hybrid seeds is obvious, and amount of increase in production can reach more than 10%.
What should explain at last is: above embodiment only in order to the explanation the present invention and and unrestricted technical scheme described in the invention; Therefore, although this specification has carried out detailed explanation to the present invention with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of invention, and it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. the production method that rice paddy seed is produced in mechanization is characterized in that: at first cultivate close excellent sterile system and recovery system of breeding time, and then select the strong advantage hybrid rice combination that the suitable for mechanization seed is produced; Parents with hybrid combination are test carrier again; Through system research, through male sterile line or recovery system are implanted related gene, the pollination back is through killing male parent; The method that harvesting is maternal makes up brand-new hybridization water seed production technique system that can suitable for mechanization operation.
2. the production method of rice paddy seed is produced in a kind of mechanization according to claim 1, it is characterized in that: excellent sterile system and recovery system that described breeding time is close are: male sterile line: green three A, green 102S, recover system: 2E06 (MC526).
3. the production method of rice paddy seed is produced in a kind of mechanization according to claim 1, it is characterized in that: the parents of described hybrid rice combination are: female parent: green three A, green 102S.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493726A (en) * | 2013-10-21 | 2014-01-08 | 安徽省农业科学院水稻研究所 | Method for mechanized seed production of hybrid rice through integration of seedling slinging technology and direct seeding technology |
| CN103518619A (en) * | 2013-10-21 | 2014-01-22 | 安徽省农业科学院水稻研究所 | Hybrid rice variety breeding and producing method suitable for safe, high-efficiency and mechanized seed production |
| CN105104168A (en) * | 2015-08-07 | 2015-12-02 | 安徽省农业科学院水稻研究所 | Hybrid rice breeding method using parents with close duration from seeding to heading |
| CN105104167A (en) * | 2015-08-07 | 2015-12-02 | 安徽省农业科学院水稻研究所 | Breeding method for hybrid rice |
| CN107509631A (en) * | 2017-09-28 | 2017-12-26 | 重庆市农业科学院 | A kind of mechanization producing method for seed of New Hybrid Rice Combination |
| CN107889743A (en) * | 2017-11-26 | 2018-04-10 | 安徽省农业科学院水稻研究所 | A kind of seed selection of two-line sterile line of suitable mechanization Mixed plant and Mixed plant method |
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| JPH0322927A (en) * | 1989-06-19 | 1991-01-31 | Mitsui Toatsu Chem Inc | Rice plant having novel cytoplasm and its cultivation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493726A (en) * | 2013-10-21 | 2014-01-08 | 安徽省农业科学院水稻研究所 | Method for mechanized seed production of hybrid rice through integration of seedling slinging technology and direct seeding technology |
| CN103518619A (en) * | 2013-10-21 | 2014-01-22 | 安徽省农业科学院水稻研究所 | Hybrid rice variety breeding and producing method suitable for safe, high-efficiency and mechanized seed production |
| CN103493726B (en) * | 2013-10-21 | 2015-09-09 | 安徽省农业科学院水稻研究所 | A kind ofly gather the production method that rice transplanting and direct seeding technique realize the hybrid rice mechanization production of hybrid seeds |
| CN103518619B (en) * | 2013-10-21 | 2015-09-09 | 安徽省农业科学院水稻研究所 | A kind of hybrid rice variety seed selection and production method being suitable for the mechanization production of hybrid seeds |
| CN105104168A (en) * | 2015-08-07 | 2015-12-02 | 安徽省农业科学院水稻研究所 | Hybrid rice breeding method using parents with close duration from seeding to heading |
| CN105104167A (en) * | 2015-08-07 | 2015-12-02 | 安徽省农业科学院水稻研究所 | Breeding method for hybrid rice |
| CN107509631A (en) * | 2017-09-28 | 2017-12-26 | 重庆市农业科学院 | A kind of mechanization producing method for seed of New Hybrid Rice Combination |
| CN107889743A (en) * | 2017-11-26 | 2018-04-10 | 安徽省农业科学院水稻研究所 | A kind of seed selection of two-line sterile line of suitable mechanization Mixed plant and Mixed plant method |
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Application publication date: 20120208 |