CN103609431A - Breeding method of double-cropping two-line super rice variety Gui two-excellent 2 - Google Patents
Breeding method of double-cropping two-line super rice variety Gui two-excellent 2 Download PDFInfo
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Abstract
The invention provides a breeding method of double-cropping two-line super rice variety Gui two-excellent 2. The breeding method comprises the following steps: selecting a strong restorer Gui 99 as a female parent, and hybridizing with an excellent single plant of a filial generation of a Guang affinity restorer calotoc and a Guang affinity japonica rice variety 02428 to obtain a Gui restorer 582, and hybridizing with GuiKe-2S to obtain the Gui two-excellent 2. The Gui two-excellent 2 is suitable for temperature-sensitive type planting and light-sensitive type planting in a double-cropping rice region in the southern region of China, and shows a super rice variety with a super high yield characteristic in temperature-sensitive type planting and light-sensitive type planting, thereby further improving the per unit area yield of the rice in the southern region of China, and relieving the grain safety supply pressure in the region.
Description
Technical field
The invention belongs to agricultural technology field, specifically a kind of yield two crops a year two is super hybridization rice kind osmanthus two selections of excellent No. 2.
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Background technology
The rice dwarf breeding sixties in 20th century and the seventies breeding of hybridized rice realized twice leap of China's rice yield, greatly improve rice yield; Within 1996, country has implemented the research of Chinese super hybridization rice project, through many units of more than ten years, multi-disciplinaryly combine tackling key problem, obtains very large effect, till 2012, in succession has 101 huge rice varieties of yield potentiality to pass through national super hybridization rice and assert.In the situations such as current increased population, Cultivated Land Area Decrease, water scarcity, the grain security that these breeding achievements efficiently solve China is supplied with.
South China Double Cropping rice district comprises the provinces such as Guangdong, Guangxi, Hainan, Fujian, is not only China's rice breeding quantum jump for the first time--rice dwarf breeding cradle is also one of hybrid rice three series mating area of successfully making outstanding contributions.South China is located in the forward position of reform and opening-up, and ur-banization speed is accelerated and Cropping structure adjustment, and the grain security of this area is supplied with and faced immense pressure.Therefore, alleviate the pressure of the grain security supply of this area, be necessary to strengthen scientific research and drop into, utilizing science and technology strength further to improve rice yield is feasible effective thinking.South China aspect super hybridization rice seed selection, has obtained larger effect nearly ten years, in succession selected excellent bright 86, No. 1, the special excellent boat of II, No. 1, the excellent boat of II, Tianyou998, victory safe No. 1, five excellent 308, day excellent China accounts for, the super hybridization rice kinds such as dark excellent 9516.Spread and the application on producing of these super hybridization rice kinds, has increased substantially the per unit area yield of paddy rice, has alleviated the food supply pressure of this area.
Summary of the invention
The invention provides a kind of yield two crops a year two is super hybridization rice kind osmanthus two selections of excellent No. 2, select strong restorer osmanthus 99 to do maternal, the wide affinity restorer calotoc of take is that choosing obtains osmanthus extensive 582 with the fine individual plant of wide affinity japonica rice variety 02428 filial generation after paternal hybrid, with Guike-2S hybridization, obtain osmanthus two excellent No. 2 again.
Comprise the following steps:
Step is the seed selection in strong restorer osmanthus extensive 582 (1): adopt strong restorer osmanthus 99 for maternal, wide affinity restorer calotoc is that male parent is hybridized with the fine individual plant of wide affinity japonica rice variety 02428 filial generation; The F of plantation hybrid combination osmanthus 99//calotoc/02428
2material, and select fine individual plant results seed; From F
3segregative generation rises, and through artificial infection rice blast, identifies, continues directed selection of many generations, obtains fine individual plant, is osmanthus extensive 582;
(2) step is measured combination by the restorer osmanthus of acquisition extensive 582 and Guike-2S, is osmanthus two excellent No. 2.
Wherein step (1) in artificial infection Pyricularia oryzae be the mixed bacteria liquid of a plurality of biological strains;
Wherein the Guike-2S of step in is (2) that indica type two of academy of agricultural sciences, Guangxi rice research institute seed selection is photo-thermo-sensitive genic male sterile line, and within 2007, by Guangxi variety certification, authorization is numbered osmanthus and examines rice No. 2007045; The protection of this male sterile line application kind power in 2007, application notification number is CNA003975E, is the biomaterial that can provide to the public.
The present invention adopts above technical scheme, and its advantage is:
(1) the seed selection in strong restorer osmanthus extensive 582: adopt strong restorer osmanthus 99 for maternal, wide affinity restorer calotoc is that male parent is hybridized with the fine individual plant of wide affinity japonica rice variety 02428 filial generation; The F of plantation hybrid combination osmanthus 99//calotoc/02428
2material 3500-4000 strain, and select that plant type is good, cane is sturdy, big panicle many grains per panicle, fine individual plant results seed that high, the ripe look of ripening rate is good; From F
3segregative generation rises, and through artificial infection rice blast, identifies, continues directedly to select blast resisting, plant type is good, cane is sturdy, big panicle many grains per panicle, the good fine individual plant of high, the ripe look of ripening rate; Through the orientations of a plurality of generations, select, after rice blast is identified and recovery capability measures, finally obtain that a strain plant and leaf shape is good, cane is sturdy, big panicle many grains per panicle, blast resisting and restoring force strong, the tentative osmanthus extensive 582 that is called of this strain.
Wherein, the extensive 582 principal character characteristics in osmanthus: plant and leaf shape is good, and cane is sturdy, plant height 106cm, sword-like leave is straight and upright, and sword-like leave is about 20cm, several 160 of the average total grain of every fringe, spike length 23.5cm, ripening rate 88-95%, 20.5 grams of thousand kernel weight, 5 grades of artificial infection blast resisting fringe pest.
(2) the restorer osmanthus of acquisition extensive 582 is measured to combination from different two-line sterile line Guangzhan 63S, strain I S, Peiai 64S, red 141S ,Gui section-1S, Guike-2S etc., screening shorter strong advantage combination breeding time.Wherein season all show the characteristic of stable high yield, excellent No. 2 of the tentative osmanthus two by name of this combination with combination breeding time shorter (Nanning is early about the 122 days time of infertility of season, about 115 days seasons of evening), the morning and evening of the assembly of male sterile line Guike-2S.
(3) excellent the layouting for No. 2 in osmanthus two planted experimentally to different ecological area such as Guangxi Yulin, Beiliu City, Baise, Hepus, carry out adaptability evaluation.Layout to plant experimentally and show: osmanthus two all shows stable high yield season in morning, evening excellent No. 2, and breeding time is shorter, capacity for the resistance to lodging is strong, and land for growing field crops is without the characteristic of rice blast.
(4) by the excellent rice in Guangxi province new varieties regional test of declaring for No. 2 in this kind osmanthus two, through test in 2 years, performance was excellent.Authorized by Guangxi new varieties in 2008 for excellent No. 2 in osmanthus two.
(5) the excellent No. 2 application super hybridization rice kinds in osmanthus two are assert.Organize expert to carry out in flakes scene to hundred of this kind mu and survey product examination, check and acceptance result reaches the standard of national super hybridization rice using names.
Preferably, the plant height 106cm in osmanthus extensive 582, sword-like leave is about 20cm, several 160 of the average total grain of every fringe, spike length 23.5cm, ripening rate 88-95%, 20.5 grams of thousand kernel weight, 5 grades of artificial infection blast resisting fringe pest.
Preferably, throw to plant and be advisable with 3-3.5 leaf, hand is inserted to transplant and is advisable with 4.5～5 leaves, and mu is inserted or mu is thrown 2.5 ten thousand caves, and the specification in described cave is 6 * 4 cun, every cave transplanting 2～3 seedlings; Honda periphery stays a field ditch every 4 meters.
Preferably, in every mu, total fertilizing amount is 18 kilograms of purity nitrogens, and nitrogen phosphoris and potassium fertilizer ratio is 1:0.5:1.2; 1000 kilograms of this field organic fertilizers, 30 kilograms of carbon ammonia, 30 kilograms, phosphate fertilizer is made base manure; After transplanting, 5～7 days mu is executed 6 kilograms, urea and is topdressed for the first time, and after transplanting, 10～12 days mu is executed 18 kilograms, 15 kilograms, urea, potassium chloride and topdressed for the second time; The middle and late growth stage Potassium, in the ear differentiation fourth phase, optic lobe look seedling Jia，Mu Shi 15-15-15 composite fertilizer 5-10 kilogram;
Preferably, excellent No. 2 of osmanthus two harvest time be ninety percent ripe.
Preferably, be 120-124 days the breeding time that osmanthus two is excellent No. 2, output 550-720 kg/acre.
The present invention further adopts above technical characterictic, and its advantage is:
1. planting range: osmanthus two can be done twoly season sooner or later make plantation in south Guangxi for excellent No. 2, and Central Guangxi does early to make plantation, and In Northern Guangxi is done season semilate rice plantation.
2. sowing time: south Guangxi is early made Suitable Sowing Period to be advisable in early March sowing by the end of February; Select the plot plantation that fertility is good.
3. throw to plant and be advisable with 3-3.5 leaf, hand is inserted to transplant and is advisable with 4.5～5 leaves.Mu is inserted (throwing) 2.5 ten thousand left and right, cave, and specification is advisable with 6 * 4 cun, every cave transplanting 2～3 seedlings; Honda periphery is held ring field ditch successfully, every 4 meters, stays a field ditch.
4. above high-yield fertilization methods of 700 kilograms of per mu yields: the total fertilizing amount of Honda is 18 kilograms of purity nitrogens, and nitrogen phosphoris and potassium fertilizer ratio is 1:0.5:1.2; 1000 kilograms of this field organic fertilizers, 30 kilograms of carbon ammonia, 30 kilograms, phosphate fertilizer is made base manure; After transplanting, 5～7 days mu is executed 6 kilograms, urea and is topdressed for the first time, and after transplanting, 10～12 days mu is executed 18 kilograms, 15 kilograms, urea, potassium chloride and topdressed for the second time; The middle and late growth stage Potassium, in the ear differentiation fourth phase, optic lobe look seedling Jia，Mu Shi 15-15-15 composite fertilizer 5-10 kilogram;
5. later stage attention control banded sclerotial blight, panicle blast and rice fulgorid;
6. harvest is ninety percent ripe.
The present invention is maternal by adopting good strong recovery, the wide strong restorer of affinity is the strong restorer that paternal hybrid is cultivated round-grained rice type parent Xian with the good intermediate materials of wide affinity japonica rice variety filial generation, be measured from different male sterile line the strong advantage combination that screening breeding time is shorter, output is high again, and the combination of acquisition is layouted and to different ecological area, carried out adaptability evaluation, participate in the examination of provincial district and super hybridization rice identification, finally select and be applicable to the super hybridization rice kind of two seasons plantation sooner or later.This kind is done in South China Double Cropping rice district early, make plantation evening, and makes in morning, evening the super hybridization rice kind that all shows Super-high-yielding characteristic, further improves the rice yield of South China, alleviates the grain security supply pressure that this area faces.
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Accompanying drawing explanation
Fig. 1 is that Fig. 1 is the family tree in strong restorer osmanthus 582.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail:
Embodiment 1:
Concrete steps of the present invention are as follows:
(1) as shown in Figure 1: nineteen ninety-five early adopts strong restorer osmanthus 99 for maternal in season, wide affinity restorer calotoc is that male parent is hybridized system's choosing with the fine individual plant of wide affinity japonica rice variety 02428 filial generation; The F of plantation osmanthus 99//calotoc/02428
2material 3500-4000 strain, and select blast resisting, plant type is good, cane is sturdy, big panicle many grains per panicle, high, the ripe look of ripening rate are good fine individual plant results seed; From F
3segregative generation rises, and through artificial infection rice blast, identifies, continues directedly to select blast resisting, plant type is good, cane is sturdy, big panicle many grains per panicle, the good fine individual plant of high, the ripe look of ripening rate; Through the orientations of 17 generations, select, after rice blast is identified and recovery capability measures, finally obtain that a strain plant type is good, cane is sturdy, big panicle many grains per panicle, blast resisting and restoring force strong, the tentative osmanthus extensive 582 that is called of this strain.
(2) the restorer osmanthus 582 of acquisition was measured to combination from different two-line sterile line Guangzhan 63S, strain I S, Peiai 64S, red 141S ,Gui section-1S, Guike-2S etc. in 2004.Through screening, osmanthus 582 is huge with the combination yield potentiality of male sterile line Guike-2S assembly, breeding time is shorter, plant type good, lodging tolerance is strong, is the target variety that meets seed selection, excellent No. 2 of tentative osmanthus two by name; Again through making field plot test in morning, the evening of 1 year, this combination early, make a list and reveal the characteristic of stable high yield evening.
(3) excellent the layouting for No. 2 in osmanthus two planted experimentally to variant Ecological Areas such as Guangxi Yulin, Beiliu City, Baise in 2005, result be early, make and all show shorter characteristic of stable high yield, breeding time evening, and land for growing field crops do not have rice blast to occur, annidation is stronger.Wherein within 2005, early each pilot average yield reaches 550 kgs/acre season, and maximum output reaches 720 kgs/acre, and rice blast is not found to feel in land for growing field crops.Season in evening in 2005, each pilot average yield was 530 kgs/acre, and maximum output is 690 kgs/acre, and rice blast is not found to feel in land for growing field crops.
(4) within 2006, by the excellent rice in Guangxi province new varieties regional test of declaring for No. 2 in osmanthus two, through the test of 2 years, performance was excellent.The excellent rice varieties that has passed through Guangxi for No. 2 in 2008 in osmanthus two is authorized.
Test manufacture scale in district is existing: within 2006, participate in the slow ripe group of preliminary examination of rice region in South of Guangxi early rice, 469.50 kilograms of five pilot average yield per mus, than special excellent 63 volume increase 8.20% of contrast; Continuous examination in 2007,552.74 kilograms of five pilot average yield per mus, than contrast, special excellent 63 volume increase 8.44%(are extremely remarkable); 511.12 kilograms of test average yield per mus in 2 years, than special excellent 63 volume increase 8.32% of contrast, volume increase point ratio 100%.559.38 kilograms of production test average yield per mus in 2007, than special excellent 63 volume increase 8.1% of contrast.
Feature: this product kind temperature sensitive type double-linear hybrid rice, the early rice plantation of south, osmanthus, about the 124 days time of infertility, than contrasting special excellent 63 precocity 4 days.Other Main Agronomic Characters (mean value) performance: plant type is compact, short straight, the ripe phase annesl of blade is good, every mu of number of productive ear 18.9 ten thousand, 112.2 centimetres of plant heights, 23.2 centimetres of spike lengths, 158.0 of every total grain panicle numbers, ripening rate 83.0%, 21.6 grams of thousand kernel weight.Rice matter leading indicator: brown rice rate 82.7%, head rice rate 69.0%, aspect ratio 2.7, chalk rice rate 86%, chalkiness degree 15.0%, 80 millimeters of glue denseness, amylose content 24.4%; Resistance: 6 grades of seedling leaf pest, 7 grades of fringe pest, fringe pest loss index 46.2%, rice blast resistance composite index 6.8; 7 grades, the pathogenic IV type of bacterial leaf-blight, 5 grades, V type.
(5) this kind application super hybridization rice kind is assert.Vouch in flakes in mid-July, 2007 by on-the-spot hundred mu of expert's onsite acceptance ， In The Luchuan of Guangxi county, and 740.68 kilograms of average yield per mu gulches, over the yield index of national super hybridization rice kind.Osmanthus two in 2010 excellent No. 2 by named as super hybridization rice kind.
The excellent No. 2 main high-yield culturing main points in osmanthus two: 1. planting range: osmanthus two can be done twoly season sooner or later make plantation in south Guangxi for excellent No. 2, and Central Guangxi does early to make plantation, and In Northern Guangxi is done season semilate rice plantation.
2. sowing time: south Guangxi is early made Suitable Sowing Period to be advisable in early March sowing by the end of February; Select the plot plantation that fertility is good.
3. throw to plant and be advisable with 3-3.5 leaf, hand is inserted to transplant and is advisable with 4.5～5 leaves.Mu is inserted (throwing) 2.5 ten thousand left and right, cave, and specification is advisable with 6 * 4 cun, every cave transplanting 2～3 seedlings; Honda periphery is held ring field ditch successfully, every 4 meters, stays a field ditch.
4. above high-yield fertilization methods of 700 kilograms of per mu yields: the total fertilizing amount of Honda is 18 kilograms of purity nitrogens, and nitrogen phosphoris and potassium fertilizer ratio is 1:0.5:1.2; 1000 kilograms of this field organic fertilizers, 30 kilograms of carbon ammonia, 30 kilograms, phosphate fertilizer is made base manure; After transplanting, 5～7 days mu is executed 6 kilograms, urea and is topdressed for the first time, and after transplanting, 10～12 days mu is executed 18 kilograms, 15 kilograms, urea, potassium chloride and topdressed for the second time; The middle and late growth stage Potassium, in the ear differentiation fourth phase, optic lobe look seedling Jia，Mu Shi 15-15-15 composite fertilizer 5-10 kilogram;
5. later stage attention control banded sclerotial blight, panicle blast and rice fulgorid;
6. harvest is ninety percent ripe.
Embodiment 2
Below in conjunction with embodiment, the invention will be further described.
(1) nineteen ninety-five early be take strong restorer osmanthus 99 season as maternal in Nanning, and the indica type fine individual plant of filial generation parent of wide affinity parent Calotoc and the wide affinity japonica rice variety 02428 of short bar is paternal hybrid, results hybrid seed; Season in evening plantation F
1material, removes false hybrid strain and stays true hybrid strain, ripe rear mixed sowing.Within 1996, early season is planted F
2population material (about 3500-4000 individual plant), selects that plant type is good, big panicle many grains per panicle, solid good, ripe look good is, anti-or the good individual plant of proterties such as resistance to rice blast, obtains 80 fine individual plants; Season in evening in 1996 Nanning plantation F
3material (80 elite plant strains), 40 individual plants of each strain plantation, artificial infection Pyricularia oryzae identifies, the maturing stage selects that plant type is good, big panicle many grains per panicle, solid good, ripe look good and the individual plant of blast resisting, gathers in the crops 30 dissimilar target fine individual plants.Within 1997, early season is planted F
4material (30 elite plant strains), continues artificial infection Pyricularia oryzae and identifies, the maturing stage, same selection obtained 30 elite plant strains.Season early in 2002, after 15 generations, i.e. F
15material, totally 22 strains, with the rich A test cross of male sterile line, eliminate the poor strain of recovery capability respectively.Season in evening in 2003, after recovery capability Screening and Identification, obtain a strain Comprehensive Traits excellent, its plant type is good, cane is sturdy, big panicle many grains per panicle, moderate growth duration, solid good, ripe look of later stage is good, blast resisting and recovery capability strong, name as osmanthus 582.
(2) within 2004, early in Nanning, use the male sterile line test crosses such as osmanthus extensive 582 and beautiful A, rich A, ten A, Guangzhan 63S, strain I S, Peiai 64S, red 141S ,Gui section-1S, Guike-2S season, osmanthus 582 all shows very strong recovery capability from the combination of different male sterile line assembly.Wherein show with the combination Guike-2S/osmanthus 582 of male sterile line Guike-2S assembly the characteristic that breeding time is shorter, plant type good, output is high, early season 560.8 kgs/acre of output, season in evening 542.5 kgs/acre of output.
(3) within 2005, early season excellent the layouting for No. 2 in osmanthus two planted experimentally to counties and cities such as Guangxi Yulin, Baise, Qiezhou, Bobais, each pilot average yield reaches 550 kgs/acre, and maximum output reaches 720 kgs/acre, breeding time 120-124 days, rice blast is not found to feel in land for growing field crops.Season in evening in 2005 continues to plant experimentally, and each pilot average yield is 530 kgs/acre, and maximum output is 690 kgs/acre, breeding time 114-118 days, rice blast is not found to feel in land for growing field crops.Layout to plant experimentally and show: osmanthus two all shows stable high yield, the characteristic that breeding time is shorter in morning, evening excellent No. 2 in season.
(4) excellent rice in Guangxi province new varieties regional tests of participating in for No. 2 in osmanthus two in 2006.Through test in 2 years, have outstanding performance.Wherein five pilot average yield per mus in 2006 are 469.50 kilograms, than special excellent 63 volume increase 8.20% of contrast; 552.74 kilograms of five pilot average yield per mus in 2007, excellent 63 volume increase 8.44%(are extremely remarkable for bit); Two 511.12 kilograms of annual per mu yields, than special excellent 63 volume increase 8.32% of contrast, volume increase point ratio 100%.559.38 kilograms of production test average yield per mus in 2007, than special excellent 63 volume increase 8.1% of contrast.Authorize by rice in Guangxi province new varieties for excellent No. 2 2008 in osmanthus two.
(5) 2007 Le Ning villages, meter Chang town, Nian In The Luchuan of Guangxi county, osmanthus two excellent No. two as 112.6 mu of early rice contiguous plants, through expert on-the-spot real cut to survey to produce check and accept, 740.68 kilograms of all types of field output weighted mean per mu yields, surpass the yield index of national super hybridization rice kind.Within 2010, the excellent No. 2 national Ministry of Agriculture of quilt in osmanthus two are named as super hybridization rice kind.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (7)
- One kind to yield two crops a year two be super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that, select strong restorer osmanthus 99 to do maternal, the wide affinity restorer calotoc of take is that choosing obtains osmanthus extensive 582 with the fine individual plant of wide affinity japonica rice variety 02428 filial generation after paternal hybrid, with Guike-2S hybridization, obtain osmanthus two excellent No. 2 again.
- 2. two crops a year two as claimed in claim 1 are super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that,Comprise the following steps:Step is the seed selection in strong restorer osmanthus extensive 582 (1): adopt strong restorer osmanthus 99 for maternal, wide affinity restorer calotoc is that male parent is hybridized with the fine individual plant of wide affinity japonica rice variety 02428 filial generation; The F of plantation hybrid combination osmanthus 99//calotoc/02428 2material, and select fine individual plant results seed; From F 3segregative generation rises, and through artificial infection rice blast, identifies, continues how for directed selection, to obtain fine individual plant, is osmanthus extensive 582;(2) step is measured combination by the restorer osmanthus of acquisition extensive 582 and Guike-2S, is osmanthus two excellent No. 2.
- 3. two crops a year two as claimed in claim 1 are super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that, the plant height 106cm in osmanthus extensive 582, sword-like leave is about 20cm, several 160 of the average total grain of every fringe, spike length 23.5cm, ripening rate 88-95%, 20.5 grams of thousand kernel weight, 5 grades of artificial infection blast resisting fringe pest.
- 4. two crops a year two as claimed in claim 1 are super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that, throw to plant and are advisable with 3-3.5 leaf, hand is inserted to transplant and is advisable with 4.5～5 leaves, mu is inserted or mu is thrown 2.5 ten thousand caves, and the specification in described cave is 6 * 4 cun, every cave transplanting 2～3 seedlings; Honda periphery stays a field ditch every 4 meters.
- 5. two crops a year two as claimed in claim 1 are super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that, in every mu, total fertilizing amount is 18 kilograms of purity nitrogens, and nitrogen phosphoris and potassium fertilizer ratio is 1:0.5:1.2; 1000 kilograms of this field organic fertilizers, 30 kilograms of carbon ammonia, 30 kilograms, phosphate fertilizer is made base manure; After transplanting, 5～7 days mu is executed 6 kilograms, urea and is topdressed for the first time, and after transplanting, 10～12 days mu is executed 18 kilograms, 15 kilograms, urea, potassium chloride and topdressed for the second time; The middle and late growth stage Potassium, in the ear differentiation fourth phase, optic lobe look seedling Jia，Mu Shi 15-15-15 composite fertilizer 5-10 kilogram.
- 6. two crops a year two as claimed in claim 1 are super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that, excellent No. 2 of osmanthus two harvest time be ninety percent ripe.
- 7. two crops a year two as claimed in claim 1 are super hybridization rice kind osmanthus two selections of excellent No. 2, it is characterized in that, be 120-124 days the breeding time that osmanthus two is excellent No. 2, output 550-720 kg/acre.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673442A (en) * | 2019-03-04 | 2019-04-26 | 常德市农学会 | A kind of late hybrid rice is guaranteed the quality high-yield breeding method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764643A (en) * | 1987-01-06 | 1988-08-16 | Ring Around Products, Inc. | Route to hybrid rice production |
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2013
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4764643A (en) * | 1987-01-06 | 1988-08-16 | Ring Around Products, Inc. | Route to hybrid rice production |
Non-Patent Citations (2)
| Title |
|---|
| 国家水稻数据中心: "桂两优2号-桂审稻2008006号", 《国家水稻数据中心》 * |
| 梁曼玲等: "软米型优质杂交稻百优1191选育及高产栽培技术", 《广西农业科学》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673442A (en) * | 2019-03-04 | 2019-04-26 | 常德市农学会 | A kind of late hybrid rice is guaranteed the quality high-yield breeding method |
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