CN102090263A - Method for producing Guangliangyou No.1 hybrid rice seeds - Google Patents
Method for producing Guangliangyou No.1 hybrid rice seeds Download PDFInfo
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- CN102090263A CN102090263A CN2009102414706A CN200910241470A CN102090263A CN 102090263 A CN102090263 A CN 102090263A CN 2009102414706 A CN2009102414706 A CN 2009102414706A CN 200910241470 A CN200910241470 A CN 200910241470A CN 102090263 A CN102090263 A CN 102090263A
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Abstract
The invention belongs to the field of heterosis utilization, and particularly discloses a method for producing Guangliangyou No.1 hybrid rice seeds. The Guangliangyou No.1 hybrid rice seeds are new three-line early rice compositions produced by hybridizing a cytoplasmic male sterile line Guang 8S and a restorer line R1, wherein the female parent Guang 8S is the high-yield, high-quality and high-resistance cytoplasmic male sterile line bred by an expert Yang Zhenyu; and the male parent restorer line R1 is an inbred line. The hybrid seeds have the characteristics of high yield, stable production, high disease resistance and high biological yield.
Description
Technical field
The present invention relates in excellent No. 1 production method of hybrid rice seed wide two, is to utilize three line method to produce the method for the new combination of hybrid rice.
Background technology
China is paddy rice big country, and rice breeding technology maintains the leading position in the world always.But because the growth of Chinese population, the food problem that reply increases population remains the problem that China's agricultural needs most solution.Though it is hybrid rice seed production that the cost of three lines paddy seed is higher than two, because two be the production of hybrid seeds, have a big risk, be subjected to the uncontrollability of weather effect.Plant industry company in order to reduce the risk of production, produce hybrid rice seed, be still the maximum method of present kind industry company's employing with three line method.The shortening of the alternative time limit of kind at present reaches in order to enlarge with planting the needs that industry company competes abroad, and the three lines paddy crossbreed of seed selection safety is a most important task in present China rice breeding circle.
Summary of the invention:
The objective of the invention is to utilize the hybrid vigour theory, select high-combining ability, economical character is good, genotype is isozygotied, parents' affiliation is far away hybridization between selfed lines for use, produce high yield, disease-resistant hybrid rice seed.
The invention provides excellent No. 1 production method of hybrid rice seed wide two, comprise the use inbred line, safety is isolated, and regulates date of seeding, suitable row ratio, and roguing, results in good time utilize three to be that the wide 8S of male sterile line and recovery are R1 production hybrid rice kind wide two excellent No. 1.
Wherein said three is that the wide 8S of male sterile line is to be male sterile line by the high yield of Yang Zhenyu teacher seed selection, high-quality, high anti-three.
Wherein said recovery is R1, is 9311 to serve as maternal and extensive 527 hybridization in another name for Sichuan Province, separates through many generations and selects and breed.
The wide 8S of the biomaterial that the present invention relates to, 9311, another name for Sichuan Province extensive 527 are all open in non-patent literature.
Wherein wide 8S is open in 1 day the 58th phase of March in 2009 Ministry of Agriculture's new variety of plant protection bulletin.
Wherein another name for Sichuan Province extensive 527 is open in phase 1 day the 2nd March of calendar year 2001 (total the 10th phase) Ministry of Agriculture's new variety of plant protection bulletin.
9311 at leaf person of outstanding talent, Wu Jianguo etc.; Paddy rice " 9311 " screening mutant and mutant library make up; S511.21; Acta Agronomica Sinica; 2006 10 interim open.
Advantage of the present invention and good effect are:
1, this combination output height, plant type is moderate, and plant strain growth is neat, and sword-like leave is straight and upright, and tillering ability is strong, and ripe phase annesl is good, moderate growth duration, rice matter is good, and thousand kernel weight is big.About 110 centimetres of average plant heights, mu is fringe 200,000 effectively, several 130 of every total grain panicle, ripening rate about 80%, 26.0 centimetres of spike lengths, thousand kernel weight 27 grams.Jinggang Mountain, Jiangxi in 2008 rice blast spontaneous induction is identified: 1 grade of leaf pest, 5 grades of fringe pest.
2, participated in our company's inner late rice group variety comparative test in 2008: 528.9 kilograms of average yield per mus, than excellent No. 10 volume increase 6.3% of CK Shan, occupy the 2nd of group, increase production extremely remarkable.Be 121.0 days the average time of infertility, lacked 2 days than CK.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Embodiment 1: the concrete production process that crossbreed of the present invention wide two is excellent No. 1
Wide two excellent be for No. 1 to be that wide 8S of male sterile line and recovery are that R1 hybridization produces by three.
Wherein said three is that the wide 8S of male sterile line is to be male sterile line by the high yield of Yang Zhenyu teacher seed selection, high-quality, high anti-three.
Wherein said recovery is R1, is 9311 to serve as maternal and extensive 527 hybridization in another name for Sichuan Province, separates through many generations and selects and breed.
Embodiment 2: the production technology that crossbreed of the present invention wide two is excellent No. 1
(1) safety is isolated: space length＞500 meter, or other rice varieties of heading flowering period of being separated by more than 15 days carries out the production of hybrid seeds and isolates.
(2) begin sowing in good time: first phase male parent is than maternal Zao inserting 25～30 days, or leaf order difference 6.5-7.5 leaf, or the effective accumulated temperature father and mother originally differ from, and (area is maternal in the Soviet Union sows 20-25 day in May about 205 ℃, sowing about the April 24 male parent first phase), the second phase, the third phase are separated by about 7 days with preceding first phase respectively, or are separated by 12 days with two phase male parents.
(3) rational close planting, suitable row ratio: 16.7 * 10 centimetres of seeding row spacing female parents, plant foot 15～180,000 basic seedlings for every mu, the male parent spacing in the rows is 16.7 centimetres, and the aisle was 33.3 centimetres when duplicate rows was planted, and father and mother's one's own profession ratio is 2: 20 or 1: 12.Row is to vertical with locality predominant wind at heading stage.
(4) use " 920 " technology and artificial supplementary pollination; Spray 920 during 10% female parent heading, every a spray 20 grams, the 4th spray 5 grams.Catch up with pollen to carry out artificial supplementary pollination whole flowering stage every day at florescence from fringe phase beginning to neat fringe.
(5) prevent and treat the kernel smut technology: black spirit (producer's medicine) prevents and treats kernel smut 2-3 time continuously at cut phase, fringe phase beginning and full heading time with going out.
(6) roguing technology: whole growing is pulled out the high temperature sensitive variant of removing the loose powder phenomenon among this outside proterties such as variant of form, fertility and father and mother and the maternal wide 8S, contains spend back about 23 days timely results hybrid seed.
Embodiment 3: the cultivation application technology of wide two excellent No. 1 crossbreed
1, begins sowing in good time, cultivate strong seedling.Gui Zhongbei does late rice and sows by the end of June, 20～22 days length of time rice seedlings grow.
2, rational close planting.13 centimetres of transplanting specification 23 (or 26) cm x, 2 paddy seedlings of every root and stem of certain plants or mu are thrown 1.8～2.2 ten thousand root and stem of certain plants.
3, rich water quality management: N, P, the fertile compounding application of K use sufficient base manure, early execute fetilizer for tillering, and the later stage is seen the seedling fertilising; Shallow water is turned green, thin moisture tiller, and enough seedling dry fields, fringe phase water conservation, the later stage alternation of wetting and drying is avoided and is cut off the water supply too early to ripe.
4, prevention and elimination of disease and pests in time.
Claims (7)
1. excellent No. 1 production method of hybrid rice seed wide two, comprise the sowing father and mother this, spray gibberellin heading stage maternal plant, it is characterized in that: with three is that the wide 8S of male sterile line and recovery are R1 hybridization production three lines paddy crossbreed.Maternal wide 8S is to be male sterile line by the high yield of Yang Zhenyu teacher seed selection, high-quality, high anti-three; It is that R1 is a self bred inbred line that male parent is recovered.
2. method according to claim 1 is characterized in that safe isolation distance＞500 meter, or is separated by with this heading flowering period of described father and mother and carries out the production of hybrid seeds more than 15 days and isolate.
3. method according to claim 1, it is characterized in that first phase male parent than maternal Zao inserting 25～30 days, or leaf order difference 6.5-7.0 leaf, or the effective accumulated temperature father and mother originally differ from 200 ℃, the second phase, the third phase were separated by 7 days with preceding first phase respectively, or were separated by 10 days with two phase male parents.
4. method according to claim 1 is characterized in that 16.7 * 10 centimetres of seeding row spacing female parents, and the male parent spacing in the rows is 16.7 centimetres, and the aisle was 33.3 centimetres when duplicate rows was planted, and father and mother's one's own profession ratio is 2: 20 or 1: 12.
5. method according to claim 1 is characterized in that 10% of maternal total spike number sprays gibberellin 920 when earing, every a spray 20 grams, spray in the 4th day 5 grams.
6. method according to claim 1 and 2 is characterized in that preventing and treating kernel smut 2-3 time continuously at cut phase, fringe phase beginning and full heading time.
7. method according to claim 1 is characterized in that whole growing pulls out outside proterties and the maternal wide discrepant plant of 8S, contains and spends back 25 days results hybrid seeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009102414706A CN102090263A (en) | 2009-12-09 | 2009-12-09 | Method for producing Guangliangyou No.1 hybrid rice seeds |
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| CN2009102414706A CN102090263A (en) | 2009-12-09 | 2009-12-09 | Method for producing Guangliangyou No.1 hybrid rice seeds |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893853A (en) * | 2012-09-28 | 2013-01-30 | 北京金色农华种业科技有限公司 | Production method of hybrid rice seeds Xinrongyou 837 |
| CN102907310A (en) * | 2012-09-26 | 2013-02-06 | 北京金色农华种业科技有限公司 | Hybrid rice seed Rong Feng You 837 production method |
| CN102960235A (en) * | 2012-10-24 | 2013-03-13 | 北京金色农华种业科技有限公司 | Production method of hybrid rice seed Guangliangyou 674 |
| CN102960233A (en) * | 2012-09-27 | 2013-03-13 | 北京金色农华种业科技有限公司 | Production method of hybrid rice seed deep 95 excellent 837 |
| CN102972282A (en) * | 2012-10-22 | 2013-03-20 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seed of Luyou Huazhan |
| CN103202216A (en) * | 2013-03-14 | 2013-07-17 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seeds Ganxiangyou463 |
| CN103202220A (en) * | 2013-03-15 | 2013-07-17 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seeds Youyou107 |
-
2009
- 2009-12-09 CN CN2009102414706A patent/CN102090263A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102907310A (en) * | 2012-09-26 | 2013-02-06 | 北京金色农华种业科技有限公司 | Hybrid rice seed Rong Feng You 837 production method |
| CN102960233A (en) * | 2012-09-27 | 2013-03-13 | 北京金色农华种业科技有限公司 | Production method of hybrid rice seed deep 95 excellent 837 |
| CN102893853A (en) * | 2012-09-28 | 2013-01-30 | 北京金色农华种业科技有限公司 | Production method of hybrid rice seeds Xinrongyou 837 |
| CN102972282A (en) * | 2012-10-22 | 2013-03-20 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seed of Luyou Huazhan |
| CN102960235A (en) * | 2012-10-24 | 2013-03-13 | 北京金色农华种业科技有限公司 | Production method of hybrid rice seed Guangliangyou 674 |
| CN103202216A (en) * | 2013-03-14 | 2013-07-17 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seeds Ganxiangyou463 |
| CN103202216B (en) * | 2013-03-14 | 2014-07-09 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seeds Ganxiangyou463 |
| CN103202220A (en) * | 2013-03-15 | 2013-07-17 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seeds Youyou107 |
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Application publication date: 20110615 |