CN103461110A - Method for breeding new variety of rice - Google Patents
Method for breeding new variety of rice Download PDFInfo
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- CN103461110A CN103461110A CN2013104478319A CN201310447831A CN103461110A CN 103461110 A CN103461110 A CN 103461110A CN 2013104478319 A CN2013104478319 A CN 2013104478319A CN 201310447831 A CN201310447831 A CN 201310447831A CN 103461110 A CN103461110 A CN 103461110A
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Abstract
The invention relates to a method for breeding a new variety of rice. According to the method, rice is bred in Jiangsu through field transplanting, direct seeding, mixed harvesting and generation adding are conducted in Hainan, and the new variety is bred through repeated and alternated transplanting, direct seeding, mixed harvesting and generation adding. After the method for breeding the new variety of the rice is adopted, the breeding cycle is shortened, and the breeding pace is quickened. Labor is saved, and the breeding cost is saved. In addition, the breeding efficiency is improved, and the seed selection effect is improved. Due to the fact that Hainan and Jiangsu are different in ecological and soil environment, filial generations which are superior in character and are selected in Hainan are taken back to Jiangsu to be planted, the agronomic character changes largely, the breeding method of direct seeding mainly aims to generation adding and mixed harvesting, the diversity of the agronomic character of breeding materials can be kept, and loss of good genes is prevented.
Description
Technical field
The present invention relates to the selection-breeding method of a kind of new rice variety (being), understand specifically and pass through transfer breeding rice in land for growing field crops in Jiangsu, in Hainan, by live mixed receipts, add generation, repeatedly replace the method for seed selection new varieties (being).
Background technology
Nan Fan is the proprietary term of China's crop breeding, the meaning is to utilize the not available light and temperature condition in Hainan in Winter Jiangsu to breed and add generation breeding material, such as Jiangsu winter (October-March next year then) paddy rice can't grow, just complete a season of growth in Hainan.South is bred and is planted shortening breeding cycle, accelerating the breeding paces, advances the update of kind and made huge contribution aspect Purity Identification.But simultaneously, Nan Fan also often makes the breeder be absorbed in the predicament of " difficult, tired ", main cause is as follows: 1. the breeding cost is high, owing to breeding kind of base and mostly be built up in Hainan in the south of the crops such as national paddy rice, cause farmland, Hainan land used anxiety, the situations such as artificial shortage, artificial and farm rent increases every year, often forms rich rent less than field, please less than the situation of work.2. operating pressure is large.R&D institution south is numerous mainly to be added on behalf of the master with the little material of breeding, and because little material quantity is various, breeding technology is strong, and operation is difficult, and others is difficult to substitute.The breeder wants in the past time charter ground, seeks sources of water, means of agricultural production buying, hire casual labourer, protection against rodents insect protected to choose seeds to the later stage again, and the breeder need to be than pay more the time and efforts of several times in the locality, continent.3. breed breeding poor effect.Because Hainan has different ecology and soil environment with Jiangsu, the good filial generation of proterties of selecting in Hainan is taken back the continent plantation, and economical character generation great variety is difficult to seed selection to being satisfied with kind.
Summary of the invention
Technical purpose of the present invention is to provide the selection-breeding method of a kind of new rice variety (being), understands specifically and passes through land for growing field crops transfer breeding rice kind in Jiangsu, adds generation in Hainan by live mixed receipts, repeatedly the method for one after the other seed selection new varieties (being).
The applicant is through repetition test for many years, in many hybridization schemes and selection, find, following breeding method can be realized goal of the invention well, the problem existed to solve prior art, and the selection-breeding method of a kind of new rice variety of the present invention (being) comprises the following steps:
(1) the 1st year: the hybrid combination of configuration advantage, select first the good hybrid F of economical character in the locality, Jiangsu
1generation (the 1st seed selection); The hybrid F that will select November in the same year in the locality, continent
1it is live that in generation, taken Hainan to, the mixed F that receives
2rice paddy seed.
(2) the 2nd year: the F that will mix receipts
2seed is taken back Jiangsu, the sowing in May, and plant specification according to routine and transplant 5 cun of (5 cun+1 chi) * June, and each strain is planted 600 strains, and according to the conventional herd breeding method, select merit individual plant (the 2nd seed selection) September-October; December will be elected in Jiangsu F
3take Hainan to for rice paddy seed live, the mixed F that receives
4for rice paddy seed.
(3) the 3rd year: the F that will mix receipts
4seed is taken back the Jiangsu plantation, the sowing in May, and transplant (5 cun+1 chi) * 5 cun according to conventional high generation seed selection spectrum standard June, and each strain is planted 48 strains, and according to conventional herd breeding method (the 3rd seed selection), select the merit individual plant September-October; December will be at the elected F in locality, Jiangsu
5take Hainan, Hainan to for rice paddy seed live, the mixed F that receives
6for rice paddy seed.
(4) the 4th year: by F
6take back Jiangsu for rice paddy seed and carry out output, resistance, Quality Identification test, determine outstanding strain recommendation participation country and economize and test.
Beneficial effect of the present invention is:
1. shorten breeding cycle, accelerate breeding breeding paces.Add generation owing to all taking rice paddy seed to Hainan every year, can plant for two seasons every year, 3 years 6 seasons, substantially realize the stable of breeding material, and the breeding stabilized speed doubles.
2. light-duty saving of labor, save the breeding cost.Directly paddy is sown into to land for growing field crops, simplifies agronomy, save seedling, plant, the loaded down with trivial details process such as seed selection, labour intensity alleviates greatly, has alleviated the farmland cost simultaneously.
3. raising breeding efficiency.In general, F can be planted in 1 mu of ground
2for 30 parts of materials, 300 parts of advanced clones; Live by Hainan, F can be planted in 1 mu of ground
2for 300 parts of materials, 1000 parts of advanced clones, improved southern numerous breeding efficiency greatly.
4. improve the seed selection effect.Because Hainan has different ecology and soil environment with Jiangsu, the good filial generation of proterties of selecting in Hainan is taken back the continent plantation, economical character generation great variety, the method main purpose of live breeding is to add mixed receipts of generation, the loss of excellent genes, can not occur in the diversity that can keep the breeding material economical character.
Embodiment
Below with 30 parts of F
1add on behalf of example in Hainan for crossbreed, further illustrate the selection-breeding method of a kind of new rice variety (being):
(1) 2010: the combination of configuration high-quality hybrid, select the good hybrid F of economical character at Transition In Jurong, Jiangsu
1generation 30 parts (the 1st seed selection); December in the same year will be at 30 parts of elected F of locality, continent
1take Hainan plantation to for crossbreed, live mixed receipts, every part with planting 80 grams, and 3 square metres of lands used, add up to and use 90 square metres.
(2) 2011: the F that will mix receipts
2seed is taken back Jiangsu, the sowing in May, and transplant (5 cun+1 chi) * 5 cun according to plant specification according to routine June, and each strain is planted 600 strains, and according to conventional herd breeding method (the 2nd seed selection), select 196 strains of merit individual plant September-October; December will be at the elected F in locality, Jiangsu
3take Hainan to for rice paddy seed live, every part with planting 20 grams, 1 square metre of land used.
(3) 2012: the F that will mix receipts
4seed is taken back Jiangsu, the sowing in May, and transplant (5 cun+1 chi) * 5 cun according to conventional high generation seed selection spectrum standard June, and each strain is planted 48 strains, and according to conventional herd breeding method (the 3rd seed selection), select 35 strains of merit individual plant September-October; December will be at the elected F in locality, Jiangsu
5take Hainan to for rice paddy seed live, the mixed F that receives
6for rice paddy seed.
(4) the 4th year: 35 parts of strains are taken back to Jiangsu and identify plantation, have 18 parts of strains to have high yield, high-quality, how anti-economical character, per mu yield reached 650 kilograms, and physical and chemical index reaches three grades of superior rices, and comprehensive resistance is good.
Claims (6)
1. the selection-breeding method of a new rice variety, is characterized in that, in Jiangsu, by land for growing field crops transfer breeding rice, in Hainan, by live mixed receipts, adds generation, repeatedly replaces the seed selection new varieties.
2. the selection-breeding method of new rice variety according to claim 1, is characterized in that, the method comprises the steps:
(1) the 1st year: the hybrid combination of configuration advantage, select first the good hybrid F of economical character in the locality, Jiangsu
1generation; The hybrid F that will select November in the same year in the locality, continent
1it is live that in generation, taken Hainan to, the mixed F that receives
2for rice paddy seed;
(2) the 2nd year: the F that will mix receipts
2seed is taken back Jiangsu, the sowing in May, and plant specification according to routine and transplant June, and each strain is planted 600 strains, and according to the conventional herd breeding method, select merit individual plant F September-October
3generation; December will be at the elected F in locality, Jiangsu
3take Hainan to for rice paddy seed live, the mixed F that receives
4for rice paddy seed;
(3) the 3rd year: the F that will mix receipts
4seed is taken back the Jiangsu plantation, the sowing in May, and transplant June according to conventional high generation seed selection spectrum standard, and each strain is planted 48 strains, and according to the conventional herd breeding method, select merit individual plant F September-October
5generation; December will be at the elected F in locality, Jiangsu
5take Hainan to for rice paddy seed live, the mixed F that receives
6for rice paddy seed;
(4) the 4th year: by F
6take back Jiangsu for rice paddy seed and carry out output, resistance, Quality Identification test, determine outstanding strain.
3. the selection-breeding method of new rice variety according to claim 2, is characterized in that, F
2the live density in the Hainan in generation is suitable, every part of F
2substitute kind of 80 grams, 3 square metres of lands used.
4. the selection-breeding method of new rice variety according to claim 2, is characterized in that, in step (2), Jiangsu selective nursery seeding row spacing is planted and is of a size of 5 cun of (5 cun+1 chi) *.
5. the selection-breeding method of new rice variety according to claim 2, is characterized in that, F
4the live density in the Hainan in generation is suitable, every part of F
4substitute kind of 20 grams, 1 square metre of land used.
6. the selection-breeding method of new rice variety according to claim 2, is characterized in that, in step (3), Jiangsu selective nursery seeding row spacing is planted and is of a size of 5 cun of (5 cun+1 chi) *.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104478319A CN103461110A (en) | 2013-09-27 | 2013-09-27 | Method for breeding new variety of rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104478319A CN103461110A (en) | 2013-09-27 | 2013-09-27 | Method for breeding new variety of rice |
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|---|---|
| CN103461110A true CN103461110A (en) | 2013-12-25 |
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| CN2013104478319A Pending CN103461110A (en) | 2013-09-27 | 2013-09-27 | Method for breeding new variety of rice |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105706899A (en) * | 2016-01-13 | 2016-06-29 | 国家粳稻工程技术研究中心 | Technique for quickly breeding new rice variety suitable for direct seeding in coastal area |
| CN105918113A (en) * | 2016-05-20 | 2016-09-07 | 中国科学院东北地理与农业生态研究所 | Breeding method for polymerizing saline and alkaline resisting and rice blast resisting characters of rice |
| CN107251834A (en) * | 2017-06-30 | 2017-10-17 | 江苏沿海地区农业科学研究所 | A kind of selection of precocious intermediate keng rice kind |
| CN116267584A (en) * | 2023-03-29 | 2023-06-23 | 江苏丘陵地区镇江农业科学研究所 | Breeding method for cultivating spike bud-resistant japonica rice variety |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630554A (en) * | 2012-04-20 | 2012-08-15 | 重庆市农业科学院 | Breeding method for improving hybrid rice quality |
-
2013
- 2013-09-27 CN CN2013104478319A patent/CN103461110A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102630554A (en) * | 2012-04-20 | 2012-08-15 | 重庆市农业科学院 | Breeding method for improving hybrid rice quality |
Non-Patent Citations (2)
| Title |
|---|
| 张俊国等: "水稻新品种吉粳503", 《中国种业》 * |
| 方兆伟等: "水稻新品种连粳9号特征特性及高产栽培技术", 《农业科技通讯》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105706899A (en) * | 2016-01-13 | 2016-06-29 | 国家粳稻工程技术研究中心 | Technique for quickly breeding new rice variety suitable for direct seeding in coastal area |
| CN105918113A (en) * | 2016-05-20 | 2016-09-07 | 中国科学院东北地理与农业生态研究所 | Breeding method for polymerizing saline and alkaline resisting and rice blast resisting characters of rice |
| CN107251834A (en) * | 2017-06-30 | 2017-10-17 | 江苏沿海地区农业科学研究所 | A kind of selection of precocious intermediate keng rice kind |
| CN116267584A (en) * | 2023-03-29 | 2023-06-23 | 江苏丘陵地区镇江农业科学研究所 | Breeding method for cultivating spike bud-resistant japonica rice variety |
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Application publication date: 20131225 |