CN101796918A - Breeding and seed production methods of quality multi-resistant high-yield hybrid rice - Google Patents
Breeding and seed production methods of quality multi-resistant high-yield hybrid rice Download PDFInfo
- Publication number
- CN101796918A CN101796918A CN200910025888A CN200910025888A CN101796918A CN 101796918 A CN101796918 A CN 101796918A CN 200910025888 A CN200910025888 A CN 200910025888A CN 200910025888 A CN200910025888 A CN 200910025888A CN 101796918 A CN101796918 A CN 101796918A
- Authority
- CN
- China
- Prior art keywords
- quality
- male parent
- town
- parent
- rice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
Abstract
The invention discloses breeding and seed production methods of quality multi-resistant high-yield hybrid rice indica Zhen you 184. The rice bred through the method has good comprehensive yielding ability, moderate mature period, fine quality, good commercial value and strong stress resistance. The breeding method includes the steps of taking quality rice-blast-resistant sterile line Zhenxian 1A with high combining ability as the female parent to hybridize with quality bacterial-blight-resistant high-heterosis restorer line Zhen hui 084 to obtain hybrid rice indica Zhen you 184 with fine quality, strong rice blast resistance and bacterial blight resistance and high yield. The seed production method is as follows: seeding the male parent Zhen hui 084 in two periods, seeding the male parent in the I period at the end of April and then seeding the male parent in the II period 8-12 days later. The female parent is seeded 14-18 days after the male parent in the I period, the leaf age difference is about 3.0-3.5, the ratio of the rows of the male parent and the female parent in the seed field is 2:12-14, the male parent of the I period and the II period are in alternate single-plant transplantation, the row pitch of the female parent plants is 12-15cmX 16-19cm, and fewer-seedling transplanting is adopted. The seeds are isolated strictly, care is paid to remove the impurities, appropriate amount of '920' is sprayed through artificial supplementary pollination measure, and disease and insect control work is paid attention to.
Description
Technical field
The present invention relates to a kind of breeding and producing method for seed of plant seed, more specifically to breeding and the producing method for seed of a kind of high-quality, many anti-, high-yield hybrid paddy rice town Xian excellent 184.
Background technology
Paddy rice is the first crops of China, hybridization long-grained nonglutinous rice output height, and wide adaptability, cultivation easily, cultivated area accounts for 50% of the national paddy rice gross area, and output accounts for 60% of paddy rice gross yield, for China's grain-production makes a great contribution.The improvement of hybrid rice variety is the major fields of China's agri-scientific research always, and high-quality, many anti-, high yield are the long term objects of China's breeding of hybridized rice.
Along with the people subtracts with increasing, food problem remains the social concern that can not be ignored, over past ten years, China's breeding of hybridized rice makes much progress, and large quantities of hybrid rice new varieties are bred in succession and applied on producing, yet the rice quality of these combinations does not have big improvement, not bacterial blight-resisting and rice blast, yield potentiality is achieving no breakthrough property progress also, and lodging easily has big distance with the requirement that develops high-quality, highly efficient and productive agricultural.Therefore, how selecting (reaching the GB superior rice more than three grades) best in quality, many anti-(blast resisting and bacterial leaf-blight), high yield (going up large-area applications kind increase yield significantly than producing) hybrid rice new varieties quickly and efficiently is to have become the problem that China's breeding of hybridized rice presses for solution.
Summary of the invention
The objective of the invention is to solve above-mentioned problems of the prior art with not enough, breeding and the producing method for seed of a kind of high-quality, many anti-, high-yield hybrid paddy rice are provided, thereby the high-quality of cultivating, many anti-, high-yield hybrid new rice varieties make its large scale application on producing.
The applicant is through repetition test for many years, in many cultivation schemes and selection, find, breeding of following hybrid rice and producing method for seed can well realize that goal of the invention is to solve the problem that prior art exists, high-quality of the present invention, many breeding methods anti-, high-yield hybrid paddy rice town Xian excellent 184 are: with high-quality, blast resisting, high-combining ability male sterile line town Xian 1A is female parent, with high-quality, extensive 084 hybridization in bacterial blight-resisting superior restorer line town, acquisition product blast resisting of fine quality, high and bacterial leaf-blight, the hybrid rice town Xian excellent 184 that output is high.
The propagation method of described male sterile line town Xian 1A is: maternal sowing in the first tenday period of a month in late April to May, male parent divided for two phases, the more maternal late sowing of I phase male parent 5～7 days, the more maternal late sowing of II phase male parent 10～12 days, father and mother's one's own profession is than 2: 8～10, maternal seeding row spacing 12～15cm * 16～19cm, I, alternate the planting of II phase male parent, father and mother originally are individual plant transplanting.
The producing method for seed of above-mentioned hybrid rice is: the sowing of extensive 084 minute two phase of male parent town, I phase male parent is sowed by the end of April, II phase male parent was than I phase male parent late sowing 8～12 days, maternal than I phase male parent late sowing 14～18 days, seed farm father and mother one's own profession ratio is 2: 12～14, I, single this alternate the planting of II phase male parent, maternal seeding row spacing 12～15cm * 16～19cm lacks and originally plants.
The artificial supplementary pollination measure is taked in the production of hybrid seeds simultaneously, and carries out diseases and pests controlling work.
Town Xian excellent 184 of the present invention has following beneficial effect:
1. comprehensive yielding ability is good, and the ripe phase is moderate
Xian excellent 184 tillering abilities in town are stronger, percentage of earbearing tiller height, the big grain of big fringe, fecundity is good, general every mu of effective fringe 16～180,000, about 25 centimetres of spike lengths, every total grain panicle is several more than 160, and ripening rate is more than 86%, about thousand kernel weight 29.5 grams, in planting experimentally, pilot experiment and demonstration all show higher yield level and yield potential, more than the general per mu yield 650kg, than excellent 084 volume increase about 10% of II.About the 142 days time of infertility, suitable with II excellent 084.
2. best in quality, commodity is good
Xian excellent 184 grain in town are long and full, the stalk yellow.Sample presentation to Ministry of Agriculture's rice and quality of item supervision and inspection center detected in 2008: grain length 7.4, aspect ratio 2.9, brown rice rate 82.4%, polished rice rate 71.2%, head rice rate 58.8%, the white rate 27% of chalk, chalkiness degree 2.2%, 1 grade of transparency, disappear 5.1 grades of values of alkali, glue denseness 84mm, amylose content 15%, the index of quality reaches GB superior rice 3 grade standards.
3. plant type is good, easily cultivation
Xian excellent 184 bud scales in town are short and thick, are aubergine, and the seedling low body is strong, blade is tall and straight, and the leaf look medium, and tillering ability is stronger, plant type is collecting and distributing moderate, the stem number of blade 17 leaves, 5 elongation internodes, about 120 centimetres of plant heights (shorter about 5 centimetres) than II excellent 084, cane is sturdy, the leaf sheath plumpness, embrace the stem consolidation, do not reveal joint, upper blade is subjected to the light attitude good, functional period is long, and it is delicate and pretty to grow, and self regulating power is strong.
4. strong stress resistance, yield stability is good
Identify according to the 2007-2008 of Institute of Plant Protection, academy of agricultural sciences, Jiangsu Province artificial infection: the sick level of four strong pathological form bacterial strain KS-6-6 of the excellent 184 pairs of bacterial leaf-blights of town Xian, Zhejiang 173, PX079, JS49-6 is 1 grade (9 grades of systems) entirely; Represent the sick level of D1 in the biological strain, middle E3, middle B5, middle G1, middle F1 to be 0 grade entirely, 1 grade of panicle blast for five to rice blast.Banded sclerotial blight and other mixed natural disposition diseases are light, ripe lover of later stage.Because Xian excellent 184 canes in town are sturdy, leaf sheath is embraced the stem consolidation, has fertilizer resistance anti-lodging performance preferably.
Description of drawings
Fig. 1 is a breeding pedigree schematic diagram of the present invention
Embodiment
Further specify breeding of the present invention and producing method for seed below in conjunction with accompanying drawing.
Breeding method: with high-quality, blast resisting, high-combining ability male sterile line town Xian 1A is female parent, with high-quality, extensive 084 hybridization in bacterial blight-resisting superior restorer line town, acquisition product blast resisting of fine quality, high and bacterial leaf-blight, the hybrid rice town Xian excellent 184 that output is high.
Concrete breeding is through seeing Table 1.
Table 1: breeding method seed selection process of the present invention
| Time, place | Breeding and selfing | Pedigree | Process and explanation |
| Spring Hainan in 2004 | The production of hybrid seeds | Town Xian 1A * town extensive 084 | The little production of hybrid seeds is prepared to participate in positive season this institute and is identified. |
[0024]
| Jurong in 2004 | Participate in this institute approval test, the production of hybrid seeds prepares to participate in this institute product ratio of positive season in the coming year. | ||
| Jurong in 2005 | Participate in this institute new combination variety comparative test. | ||
| 2006-2009 | Participate in the assorted Xian prerun of province, the provinces and regions examination economizes production test. |
The propagation method of male sterile line town Xian 1A is:
Maternal sowing in the first tenday period of a month in late April to May, male parent divided for two phases, the more maternal late sowing of I phase male parent 5～7 days, the more maternal late sowing of II phase male parent 10～12 days, father and mother's one's own profession be than 2: 8～10, maternal seeding row spacing 12～15cm * 16～19cm, I, alternate the planting of II phase male parent, father and mother originally are individual plant transplanting.The strict isolation, note anti-assorted impurity elimination; Take ancillary method, improve outcrossing seed-setting rate.
The producing method for seed of town Xian excellent 184 of the present invention:
The sowing of extensive 084 minute two phase of male parent town, I phase male parent is sowed by the end of April, II phase male parent was than I phase male parent late sowing 8～12 days, maternal than I phase male parent late sowing 14～18 days, leaf age differs from about 3.0～3.5 leaves, and seed farm father and mother one's own profession ratio is 2: 12～14, I, single this alternate the planting of II phase male parent, maternal seeding row spacing 12～15cm * 16～19cm lacks and originally plants.The strict isolation, note impurity elimination, take the artificial supplementary pollination measure, spray in right amount " 920 ", and note carrying out diseases and pests controlling work.
It is as follows to press down the excellent 184 culture technique main points of Xian in addition:
Plant experimentally the output structure of the excellent 184 per mu yield 650Kg of town Xian through test: every mu 17.0 ten thousand fringe, every fringe are more than 160, and ripening rate is more than 85%, about thousand kernel weight 29.5 grams.High-yield culturing should be given full play to the advantage of its big fringe, on the basis of suitable spike number, attacks big fringe guarantor grain and weighs.Promptly strengthen seedling by cultivating many tillers, rational close planting, short early sending out early reaches seedling, improves colony's quality, accomplishes fluently the high yield basis, on the basis of guaranteeing suitable spike number, the short strong big fringe of bar, fringe is sufficient, fringe is big, grain is taken back again aim of high yield thereby reach.The technical essential that should grasp is:
1. of the right age strong seedling is cultivated in optimum period light seeding
During town Xian excellent 184 belongs to ripe in the Xian type, generally with sowing in the first tenday period of a month in May, the length of time rice seedlings grow is controlled at about 30 days to well in southern area of Jiangsu Province.10～15 kilograms of every mu of rice seedling bed amounts of broadcasting; About 30 kilograms of every mu of rice seedling bed of drought seedling amounts of broadcasting; Every mu of land for growing field crops is with planting 1.0 kilograms.The rice seedling bed will use sufficient base manure, vegetable soil, and it is fertile that a leaf is wholeheartedly executed wean, and tri-leaf period, benefit was executed relay fertilizer, and strengthened management, and especially non-irrigated seedling will be prevented blue or green withered, has controlled water, skilful fertilising, carries out the preventing and controlling of damage by disease and insect.Breed the of the right age strong seedling of delicate and pretty tall and straight anosis worm.
2. rational close planting, an even surface planting improves and plants quality
Plant experimentally and show: in go up fertility field piece mu and plant 1.6～1.8 ten thousand caves, seeding row spacing 13cm * 28cm, 1～2 in every cave, every mu of basic seedling about 50,000; The relatively poor field piece mu of fertility is planted 20,000 caves, seeding row spacing 13cm * 25cm, and every mu of basic seedling about 70,000, comparatively favourable to colony with individual coordinated development, increasing ears and grains, be easier to obtain stable high yield.To improve conscientiously simultaneously and plant quality,, improve colony's quality, for striving many fringes, attacking big fringe and lay a solid foundation for early going out tiller, seedling enough early.
3. science rich water is striven for high yield
Town Xian excellent 184 needs rich water flat suitable with II excellent 084.General mu is executed about 15 kilograms of purity nitrogens, and thin field also should increase in right amount.Short before fertilizer application is grasped, middle control, the steady principle in back.Requirement uses sufficient base manure (base manure is as far as possible based on fertilizer, and nitrogen, phosphorus, potassium cooperate), early executes the heavy dressing fetilizer for tillering; send out short morning; early reach seedling, in time put the field, on the basis of middle control; executed ear manuer; short guarantor takes into account, and based on short, the later stage is adopted the wet method of doing; note not cutting off the water supply too early, guarantee the ripe high yield and high quality of living.
4. strengthen the preventing and controlling of disease pest and weed
According to the pests occurrence rule of disease, worm, crop smothering, in time carry out preventing and controlling, especially under the high-yield culturing condition,, should note carrying out the preventing and controlling of leaf-roller, paddy stem borer, rice fulgorid and weeds because nitrogen level is higher.
Claims (6)
1. a high-quality, many breeding and producing method for seed anti-, high-yield hybrid paddy rice town Xian excellent 184 are: with high-quality, blast resisting, high-combining ability male sterile line town Xian 1A is female parent, with high-quality, extensive 084 hybridization in bacterial blight-resisting superior restorer line town, acquisition product blast resisting of fine quality, high and bacterial leaf-blight, the hybrid rice town Xian excellent 184 that output is high.
2. the breeding method of high-quality according to claim 1, many anti-, high-yield hybrid paddy rice town Xian excellent 184 is characterized in that: select for use high-quality, blast resisting, high-combining ability male sterile line town Xian 1A to be female parent.
3. the breeding method of high-quality according to claim 1, many anti-, high-yield hybrid paddy rice town Xian excellent 184 is characterized in that: select for use high-quality, bacterial blight-resisting superior restorer line town extensive 084 to make male parent.
4. the breeding method of high-quality according to claim 1, many anti-, high-yield hybrid paddy rice town Xian excellent 184, the propagation method that it is characterized in that described male sterile line town Xian 1A is: maternal sowing in the first tenday period of a month in late April to May, male parent divided for two phases, the more maternal late sowing of I phase male parent 5～7 days, the more maternal late sowing of II phase male parent 10～12 days, father and mother's one's own profession be than 2: 8～10, maternal seeding row spacing 12～15cm * 16～19cm, I, alternate the planting of II phase male parent, father and mother originally are individual plant transplanting.
5. the breeding method of high-quality according to claim 1, many anti-, high-yield hybrid paddy rice town Xian excellent 184, it is characterized in that: the sowing of extensive 084 minute two phase of male parent town, I phase male parent is sowed by the end of April, II phase male parent was than I phase male parent late sowing 8～12 days, maternal than I phase male parent late sowing 14～18 days, seed farm father and mother one's own profession ratio is 2: 12～14, I, single this alternate the planting of II phase male parent, maternal seeding row spacing 12～15cm * 16～19cm lacks and originally plants.
6. the breeding method of high-quality according to claim 1, many anti-, high-yield hybrid paddy rice town Xian excellent 184, it is characterized in that: select for use high-quality, blast resisting, high-combining ability male sterile line town Xian 1A for maternal, with high-quality, extensive 084 hybridization in bacterial blight-resisting superior restorer line town, acquisition product blast resisting of fine quality, high and bacterial leaf-blight, the hybrid rice town Xian excellent 184 that output is high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025888A CN101796918A (en) | 2009-03-12 | 2009-03-12 | Breeding and seed production methods of quality multi-resistant high-yield hybrid rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910025888A CN101796918A (en) | 2009-03-12 | 2009-03-12 | Breeding and seed production methods of quality multi-resistant high-yield hybrid rice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101796918A true CN101796918A (en) | 2010-08-11 |
Family
ID=42592895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910025888A Pending CN101796918A (en) | 2009-03-12 | 2009-03-12 | Breeding and seed production methods of quality multi-resistant high-yield hybrid rice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101796918A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102668976A (en) * | 2012-06-11 | 2012-09-19 | 广西壮族自治区农业科学院水稻研究所 | High-yield propagation method for trilineage sterile line of purple-leaf hybrid rice |
| CN102771383A (en) * | 2012-08-13 | 2012-11-14 | 江苏丰源种业有限公司 | Method for breeding and seed production of superior multi-resistance high-yield two-line hybrid rice |
| CN102812899A (en) * | 2012-07-26 | 2012-12-12 | 江苏丰源种业有限公司 | Safe and highly efficient preparation and propagation method and special isolation hood used therein |
| CN103229712A (en) * | 2013-05-06 | 2013-08-07 | 福建农林大学 | Breeding method of polyclonal antibody cold-resistant two-line sterile line |
| CN103430830A (en) * | 2013-08-14 | 2013-12-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding and seed production method of high-quality, multi-resistant and high-yield three-line hybrid rice Zhenxianyou 146 |
| CN103444514A (en) * | 2013-08-14 | 2013-12-18 | 江苏丘陵地区镇江农业科学研究所 | Seed breeding and production method of high-quality high-yield multi-resistance two-line hybrid rice 9you 832 |
| CN103444512A (en) * | 2013-08-14 | 2013-12-18 | 江苏丘陵地区镇江农业科学研究所 | Seed breeding and production method of high-quality multi-resistance high-yield three-line hybrid rice zhenxianyou 62 |
| CN103461095A (en) * | 2013-08-14 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Method for breeding highly lodging-resistant and high-quality two-line hybrid rice |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066165A (en) * | 1992-05-16 | 1992-11-18 | 南京农业大学 | A kind of breeding method of hybrid rice |
| CN1365607A (en) * | 2001-12-05 | 2002-08-28 | 广东省农业科学院水稻研究所 | Method for breeding super hybridized rice |
| CN1826873A (en) * | 2006-01-10 | 2006-09-06 | 江苏丘陵地区镇江农业科学研究所 | Seed-breeding and seed-producing method of hybrid rice II You 42 |
| US20080196117A1 (en) * | 2007-02-13 | 2008-08-14 | Johnson Carl W | Rice Cultivar M-208 |
-
2009
- 2009-03-12 CN CN200910025888A patent/CN101796918A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066165A (en) * | 1992-05-16 | 1992-11-18 | 南京农业大学 | A kind of breeding method of hybrid rice |
| CN1365607A (en) * | 2001-12-05 | 2002-08-28 | 广东省农业科学院水稻研究所 | Method for breeding super hybridized rice |
| CN1826873A (en) * | 2006-01-10 | 2006-09-06 | 江苏丘陵地区镇江农业科学研究所 | Seed-breeding and seed-producing method of hybrid rice II You 42 |
| US20080196117A1 (en) * | 2007-02-13 | 2008-08-14 | Johnson Carl W | Rice Cultivar M-208 |
Non-Patent Citations (2)
| Title |
|---|
| SHIHUA CHENG,ET,AL.: "Progress in research and development on hybrid rice:A super-domesticate in China", 《ANNALS OF BOTANY》 * |
| 周义文等: "镇恢084系列杂交水稻组合高产制种技术", 《杂交水稻》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102668976A (en) * | 2012-06-11 | 2012-09-19 | 广西壮族自治区农业科学院水稻研究所 | High-yield propagation method for trilineage sterile line of purple-leaf hybrid rice |
| CN102668976B (en) * | 2012-06-11 | 2016-11-16 | 广西壮族自治区农业科学院水稻研究所 | A kind of high-yield breeding method of purple leaf hybrid rice CMS line |
| CN102812899A (en) * | 2012-07-26 | 2012-12-12 | 江苏丰源种业有限公司 | Safe and highly efficient preparation and propagation method and special isolation hood used therein |
| CN102771383A (en) * | 2012-08-13 | 2012-11-14 | 江苏丰源种业有限公司 | Method for breeding and seed production of superior multi-resistance high-yield two-line hybrid rice |
| CN103229712A (en) * | 2013-05-06 | 2013-08-07 | 福建农林大学 | Breeding method of polyclonal antibody cold-resistant two-line sterile line |
| CN103229712B (en) * | 2013-05-06 | 2014-02-19 | 福建农林大学 | Breeding method of multi-resistance cold-resistant two-line sterile line |
| CN103430830A (en) * | 2013-08-14 | 2013-12-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding and seed production method of high-quality, multi-resistant and high-yield three-line hybrid rice Zhenxianyou 146 |
| CN103444514A (en) * | 2013-08-14 | 2013-12-18 | 江苏丘陵地区镇江农业科学研究所 | Seed breeding and production method of high-quality high-yield multi-resistance two-line hybrid rice 9you 832 |
| CN103444512A (en) * | 2013-08-14 | 2013-12-18 | 江苏丘陵地区镇江农业科学研究所 | Seed breeding and production method of high-quality multi-resistance high-yield three-line hybrid rice zhenxianyou 62 |
| CN103461095A (en) * | 2013-08-14 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Method for breeding highly lodging-resistant and high-quality two-line hybrid rice |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101336611B (en) | Breeding method of good quality, double-low, disease-resistant, high yield, lodging-resistant rape | |
| CN101796918A (en) | Breeding and seed production methods of quality multi-resistant high-yield hybrid rice | |
| CN101019505A (en) | Breeding process of rice blast-resisting high quality and high yield round-grained rice variety Zhendao-10 | |
| CN103598085B (en) | A kind of selection of photo-thermo sensitive male nuclear sterile rice line | |
| CN102771383A (en) | Method for breeding and seed production of superior multi-resistance high-yield two-line hybrid rice | |
| CN101919351A (en) | Production method of hybrid rice | |
| CN103250635B (en) | Breeding method and seed production method of high-grain-weight and high-quality two-line hybrid rice | |
| WO2015109880A1 (en) | Method for cultivating overyear regrowing rice seeds and seedling growing and planting method | |
| CN102301898A (en) | High-yield cultivation method of double-low rape flower | |
| CN101248752A (en) | Good quality flavor, rice blast resistance and high yield japonica rice Zhendao No. 12 breeding method | |
| CN108377899B (en) | Breeding method for auxiliary selection of corn hybridization induced haploid by yellow-green seedling marker | |
| CN101263783B (en) | Method for using herbicide barban to fast breed aloe all-male plant strain | |
| CN102771382B (en) | Cultivating method for japonica rice variety strong in lodging resistance and suitable for mechanical transplanting of rice | |
| CN103960132A (en) | Production method of rice seeds | |
| CN101663992A (en) | Cultivation method of high-grain weight excellent-quality ternary hybrid rice variety | |
| CN102783410A (en) | Breeding method of high-quality and double-low rapes suitable for mechanization work and with high yield, and lodging resistance | |
| CN1826873A (en) | Seed-breeding and seed-producing method of hybrid rice II You 42 | |
| CN101300957A (en) | Method for breeding Zhen dao No. 13 using ladder polymerization improved technique | |
| CN101810136A (en) | Cauliflower cytoplasmic male sterile line breeding method and application of male sterile line | |
| CN103975809A (en) | Method for breeding rice three-nursery breeder seeds by raising rice seedlings on seeding tray | |
| CN103430823A (en) | Two-line hybrid rice seed breeding method | |
| CN115005100A (en) | Method for creating winter wheat short-stalk germplasm resources | |
| CN103461097A (en) | Combined seed production method for three-line hybrid oilseed rape | |
| CN101133715A (en) | Tobacco NaN3 mutagenesis idioplasm innovation and breed selecting and cultivating technique | |
| CN101663993A (en) | Culture method of round grain glutinous rice variety resisting stripe virus disease |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100811 |