CN101248752A - Good quality flavor, rice blast resistance and high yield japonica rice Zhendao No. 12 breeding method - Google Patents
Good quality flavor, rice blast resistance and high yield japonica rice Zhendao No. 12 breeding method Download PDFInfo
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Abstract
The invention discloses a breeding method of the japonica rice variety Zhendao No.12 characterized in good quality, good taste, rice blast resistance and high production. The rice bred by the method has the advantages of good quality, good taste, high commodity value; excellent disease resistance, good yield stability and fertility, coordinated grain structure, auto-regulation; good plant type and maturation appearance. The breeding method of the invention includes the following steps: (A) selecting the self-selected Zhenxiang 24 of the late-maturing middle japonica rice characterized in early mature period, high production, rice blast resistance and good taste as the female parent, crossbreeding with the strain Zhen 511 characterized in rice blast resistance, good quality and appearance and good taste and obtaining 60 grains of F0 seeds; (B) fry soaking, sprouting and seed sowing of the F0 seeds, multiple crossing with the Wuyujing No. 8 variety with high production but bad quality, self-breeding for eight generations and obtaining the japonica rice characterized in extra quality, good taste, rice blast resistance and high production, that is the Zhendao No.12.
Description
Technical field
The present invention relates to the breeding method of a plant species, more specifically to the breeding method of No. 12, a kind of high-quality food flavor, blast resisting, high yield japonica rice town rice.
Background technology
Paddy rice is the first crop of China, and the paddy rice of China's cultivation mainly contains two subspecies, i.e. Xian subspecies and round-grained rice subspecies.What mainly cultivated in Jiangsu is the round-grained rice subspecies, accounts for more than 90% of Jiangsu paddy rice cultivated area.SOYBEAN IN HIGH-YIELD BREEDING is the important goal of rice breeding always, and China is because populous, and arable area reduces year by year, and the pressure of grain demand strengthens, and SOYBEAN IN HIGH-YIELD BREEDING is put in the first place for a long time always, and the improvement research of rice quality lags behind.In recent years, along with the raising of people's living standard, the adjustment of pattern of farming and the pressure of competition in the international market, it is important that the quality-improving of paddy rice more shows.The Jiangsu most qualities of existing main breed are bad, and degenerating is also appearred in the resistance of rice blast, simultaneously, traditional high quality japonica rice grain of rice is less, and generally below 25 grams, its high yield characteristic is restricted thousand kernel weight, often output is not high, yields poorly more than 5% than main breed.Therefore, seed selection high-quality food flavor, high yield and the new biological strain of blast resisting, especially the japonica rice new varieties to ear stem pest better resistance are important goals of Jiangsu Province's rice breeding, the existing blast resisting preferably of quick breeding performance how, high yield (thousand kernel weight is about the 27 grams) japonica rice variety that has the high-quality food flavor has again become the problem that Jiangsu japonica rice breeding presses for solution.
Summary of the invention
The objective of the invention is to solve above-mentioned the deficiencies in the prior art and problem, the breeding method of a kind of high-quality food flavor, blast resisting, high yield japonica rice is provided, thereby cultivate the japonica rice new varieties of high-quality food flavor (existing good exterior quality has good food flavor quality again), blast resisting, high yield, make it obtain large scale application.
The applicant is through for many years repetition test, in many cultivation schemes and selection, find, following breeding method can well reach goal of the invention solving prior art problems, and the breeding method that No. 12, high-quality food flavor of the present invention, blast resisting, high yield japonica rice town rice may further comprise the steps:
A) select for use the slow ripe intermediate keng rice kind town fragrant 24 of free ripe morning phase, output height, blast resisting, food flavor good (having high-quality food flavor genetic background) to do maternal (excellent flavour blood lineage), 60 in, food flavor good (having high-quality food flavor genetic background, good U.S. rice Lement and No. 1 filial generation of traditional Jiangsu superior rice kind town rice) strain town 511 hybridization acquisition F0 seeds good with free blast resisting, exterior quality with good U.S. rice Lement;
B) with F
0Presoaking and germinating sowing, again with high yield but the military fortune of inferior kind round-grained rice reestablish diplomatic relations for No. 8, selfing obtains high-quality food flavor, blast resisting, high yield japonica rice and promptly presses down rice No. 12 after 8 generations.
In the breeding method of the present invention, at CF
1Select the good individual plant of economical character when selfing promptly reestablished diplomatic relations for 1 generation, the bad individual plant of indoor superseded quality with individual plant mixed planting strain more than 1200 of quality better, carries out system again and selects; Begin artificial infection from 3 generations of selfing and identify bacterial leaf-blight; Begin to inoculate rice blast 5 seedling stages in generation in conjunction with the anti-rice blast of whole process from selfing, high fertilizer of later stage brings out panicle blast and identifies, screens and utilize high fertile condition of later stage simultaneously (high fertile condition especially later stage nitrogenous fertilizer level is higher, rice quality meeting variation, therefore the later stage high nitrogen fertilizer is an adverse circumstance for rice quality, the superior rice kind of choosing under such adverse environmental factor, quality stability is good) strengthen the selection of outward appearance and food flavor; When identifying, output inoculates panicle blast simultaneously, in conjunction with outward appearance, food flavor quality, and the material of elected better resistance.
The invention has the beneficial effects as follows:
1. best in quality, food flavor is good, and the rice commodity is good
The grains are plump is wealthy avette, clever shell stalk yellow, and commodity is good.Delivered food quality inspection center of Ministry of Agriculture test result according to 2006 by economizing the unified sampling of seed stations: brown rice yield 84.2%, polished rice rate 76.1%, head rice rate 69.5%, grain length 5.4mm, aspect ratio 1.9, the white rate 5% of chalk, chalkiness degree 0.5%, disappear 7 grades of values of alkali, glue denseness 82mm, amylose content 16.1%, 1 grade of transparency, physics and chemistry divided 70 fens, and physical and chemical index reaches state and issues the superior rice primary standard.Outward appearance and food flavor quality all significantly are better than military fortune No. 7, round-grained rice (physics and chemistry divided 60 fens).Academy of agricultural sciences, Jiangsu Province food flavor instrument detects, and No. 12 food flavors of town rice divide 70 parts, and No. 7 food flavors of military fortune round-grained rice divided 61 fens.
2. disease resistance is outstanding, and yield stability is good
This kind all has good resistance to bacterial leaf-blight, rice blast and banded sclerotial blight.2006, Institute of Plant Protection, academy of agricultural sciences, Jiangsu Province in 2007 carries out the artificial infection evaluation with four strong pathogenic strains of KS-6-6, Zhejiang 173, PXO79, JS49-6 of bacterial leaf-blight for No. 12 to the town rice, the sick level luffing (9 grades of systems) between the 1-3 level in 2 years; Seedling stage, resistance was variant to the different biological strains of rice blast, and ZB21, ZD7, ZE3, ZF1 and five biological strain performances of ZG1 are exempted from service, and district's examination fringe phase inoculation in 2006,2007 identifies that panicle blast is respectively 2 grades and 3 grades, and performance is high anti-.Field banded sclerotial blight and other mixed natural disposition diseases are light, ripe lover of later stage.No. 12 stem stalks of town rice are sturdy, than fertilizer resistance anti-lodging.
3. yielding ability is good, and the fringe kernel structure is coordinated, and self regulating power is strong
This kind tillering ability is strong, percentage of earbearing tiller height, the fringe type is bigger, and the fringe layer is neat, it is closeer grain, fringe shape half is upright, general per mu yield 600-650 kilogram (the high-yield field piece can reach more than 700 kilograms), No. 7 volume increase about 5% of the military fortune of contrast round-grained rice, about spike length 18cm, every mu of effective fringe is at 19-21 ten thousand, and every total grain panicle is counted the 130-140 grain, and ripening rate is more than 90%.About thousand kernel weight 27 grams.Self regulating power is strong, easily cultivation.
4. plant type is good, ripe lover
This product seedling low body is strong, and leaf is tall and straight, and the leaf look moderate, and tillering ability is strong, the plant type compactness, and sword-like leave is shorter, and is tall and straight, is subjected to the light attitude good, and functional period is long, and it is delicate and pretty grow, and the later stage annesl is along accent, ripe lover, about the 163 days time of infertility, it is slow ripe about 3 days that No. 7, round-grained rice is transported in tourney.
Description of drawings
Fig. 1 is a breeding method breeding pedigree schematic diagram of the present invention
Embodiment
Embodiment
1) selected for use the slow ripe intermediate keng rice kind town fragrant 24 of free ripe morning phase, output height, blast resisting, good palatability to do maternal (blood lineage with U.S. superior rice kind Lement) in 1996, the middle strain town 511 good with free blast resisting, exterior quality (offspring that the traditional superior rice kind of U.S. superior rice kind Lement and this institute town rice is No. 1) hybridization obtains F
060 in seed is F
0
2) winter in 1996 in Hainan with F
0Presoaking and germinating sowing, again with high yield but the military fortune of inferior kind round-grained rice reestablish diplomatic relations for No. 8, more than 600 in seed be CF
0
3) 1997 with CF
0Presoaking and germinating sowing, single then this to the greatest extent seedling plant, only control not diseases prevention of worm, select the individual plant that the midwifery growing way is good, disease is light, go out its outward appearance rice matter of rough sight, the eliminating of rice matter difference, it is CF that the good mixing of rice matter is reserved seed for planting
1
4) CF that mixing was reserved seed for planting in 1998
1The presoaking and germinating sowing, not diseases prevention of worm is only controlled in individual plant transplanting 1200 strains then, and it is CF that light, comprehensive good individual plant 30 strains of proterties of disease are received in choosing
2
5) CF
2Selfing: the 30 strain CF that will obtain in 1999
2Its outward appearance rice matter of indoor sight is eliminated 8 strains, plants 22 strains, and according to yielding ability, aesthetic appearance screening, choosing 4 strains is that ripe late round-grained rice gets CF in 12 strains
3
6) CF
3Selfing: 2000 with the CF that obtains
3Plant 8 strain systems, selected 5 strains are that totally 21 strains obtain CF
4, simultaneously from CF
3Bacterial leaf-blight is identified in the beginning artificial infection;
7) CF
4Selfing: calendar year 2001 is with the CF that obtains
4Plant 14 strain systems, selected 5 strains are that totally 15 strains obtain CF
5
8) CF
5Selfing: 2002 with the CF that obtains
5Plant 12 strain systems, eliminate 7 strain systems, selected altogether 23 strains obtain CF
6, simultaneously from CF
5Selfing begins to inoculate rice blast seedling stage in conjunction with the anti-rice blast of whole process, and high fertilizer of later stage brings out panicle blast to be identified, screen, and simultaneously rice outward appearance and food flavor is carried out adverse circumstance and strengthens selection;
9) CF
6Selfing: 2003 with the CF that obtains
6Plant 17 strain systems, from CF
6Rise by tasting for elected strain system is carried out food flavor, in conjunction with tasting superseded 10 of result, selected altogether 19 strains obtain CF
7
10) CF
7Selfing: 2004 with the F that obtains
7Plant 16 strain systems, eliminate 11 strain systems, in conjunction with tasting elected 3 stable strains of result, selected altogether 15 strains;
11) 3 stable strains will being elected in 2005 carry out the new lines variety comparative test, the not anti-rice blast of whole process, carrying out the panicle blast inoculation heading stage identifies, elected wherein 1 show as the disease-resistant high yield of high-quality, promptly obtain extra best best, blast resisting, high yield japonica rice town rice No. 12, continue later on food flavor and taste, select the excellent food flavor kind of No. 12 spies of excellent maintenance town rice in excellent.
12) participated in ripe late round-grained rice district examination in the Jiangsu Province in 2006;
13) continued to participate in ripe late round-grained rice district examination in the Jiangsu Province in 2007;
14) participated in the Jiangsu Province ripe late round-grained rice production test, tentatively titled town rice in 2008 No. 12
Concrete breeding is through seeing Table 1.
No. 12 culture technique main points of the town rice of breeding method breeding of the present invention are as follows:
Plant experimentally through test, the output of town rice 654 per mu yield 600-650Kg constitutes: every mu of 19-21 ten thousand fringes, and every total grain panicle is counted 130-140, and ripening rate is more than 90%, about thousand kernel weight 27 grams.High-yield culturing should be striven sufficient fringe, attacks big fringe, and it is heavy to protect grain.Promptly by cultivating the strong seedling of many tillers, rational close planting is shortly early sent out early enough seedling and is in time put the field, improves colony's quality, accomplishes fluently the high yield basis, on the basis of guaranteeing suitable spike number, and the short strong big fringe of stalk, fringe foot, fringe are big, grain is taken back again aim of high yield thereby reach.The technical essential that should grasp is:
(1) proper seeding is cultivated strong seedling.Southern area of Jiangsu Province, sowing in about May 15, every 667m
2Rice seedling bed sowing 20-30 kilogram, the every 667m of non-irrigated seedling
2About 50 kilograms of the rice seedling bed amounts of broadcasting.Using sufficient on the basis of base manure, a leaf executes wholeheartedly that wean is fertile, and tri-leaf period, benefit was executed relay fertilizer, executed the fertilizer of standing up before the transplanting, and carried out rice seedling bed disease pest and weed preventing and controlling, the watery ricenursery length of time rice seedlings grow with about 30 days for well, the non-irrigated seedling length of time rice seedlings grow with 20-25 days for well.
(2) transplant rational close planting in good time.In go up the every 667m of fertility field piece
2Insert about 1.8 ten thousand caves basic seedling about 60,000; The relatively poor field piece of fertility is inserted 20,000 caves, basic seedling about 80,000.And accomplish an even surface planting, improve and plant quality.
(3) fertilizer application and water starch management.1., every mu of total pure nitrogen level is controlled at about the 18-20 kilogram, takes the circumstances into consideration increase and decrease according to fertility.2., heavy dressing base manure (applying organic manure), early execute short fetilizer for tillering, seedling is to putting the field raising percentage of earbearing tiller as early as possible.Using sufficient on the basis of base manure, planting the back and executed urea 10kg/ mu in 5～7 days, shallow water was diligently irritated short and was early sent out early stage, strove planting back about 20 days, and stem tiller number reaches about 200,000, light earlier later on after heavily gradation put the field, the numerical control of the highest stem tiller is built in 25～270,000.3., on the basis of middle control, early execute the short fertilizers for potted flowers of heavy dressing, short grain is striven big fringe, takes the circumstances into consideration to execute to protect fertilizers for potted flowers; Or short guarantor taken into account single-dose application; Reach and attack big fringe, strive the heavy purpose of fringe.4., final-period management to be to improve ripening rate, increase grain-weight is attached most importance to, and adopts and does wet method, must guard against and cuts off the water supply too early, it is until old ripe to guarantee to live, to guarantee high yield and high-quality.
(4) carry out the extermination of disease and insect pest.Pests occurrence rule according to disease, worm, crop smothering is in time carried out preventing and controlling.Especially note under the high-yield culturing condition,, should note carrying out the preventing and controlling of leaf-roller, paddy stem borer, rice fulgorid, rice blast, stripe virus disease and weeds because nitrogen level is higher.
The result is planted experimentally in pilot experiment and demonstration
1. result of the test and yield level
1.1 result of the test
2006, recommended to participate in ripe late round-grained rice regional test in the Jiangsu Province in 2007, average yield per mu is respectively 619.0 kilograms and 591.0 kilograms, and comparison increases production 2.74% and 7.7% respectively No. 7 according to military fortune round-grained rice, reaches respectively significantly and utmost point significance level, occupy the 8th, one, ripe phase comparison was according to slow about 3 days.
1.2 yield level
General per mu yield 600-650 kilogram, the high-yield field piece can reach more than 700 kilograms.During provinces and regions 8 points of examination were inferior in 2 years, time average yield per mu of 5 points is in (2007 belong to obvious underproduction time) more than 600 kilograms, the amount of increase in production of 4 points time is more than 5%, is respectively 5.2% and 16.1% as the Wujiang point amount of increase in production of Taihu Lake points in 2006 and 2007.This institute showed test in 2005,656.5 kilograms of per mu yields, and comparison is according to No. 7 volume increase 9.13% of military fortune round-grained rice.
Table 1: breeding method seed selection process of the present invention
Claims (5)
1, the breeding method of No. 12, a kind of high-quality food flavor, blast resisting, high yield japonica rice town rice is characterized in that may further comprise the steps:
A) it is maternal to select for use the good slow ripe intermediate keng rice kind town of free ripe morning phase, output height, blast resisting, food flavor fragrant 24 to do, with the free strain town that blast resisting, exterior quality are good, food flavor is good 511 hybridization acquisition F
060 in seed;
B) with F
0Presoaking and germinating sowing, again with high yield but the military fortune of inferior kind round-grained rice reestablish diplomatic relations for No. 8, selfing obtains extra best best food flavor, blast resisting, high yield japonica rice and promptly presses down rice No. 12 after 8 generations.
2, the breeding method of No. 12, high-quality food flavor according to claim 1, blast resisting, high yield japonica rice town rice is characterized in that CF
1Select the good individual plant of economical character when selfing promptly reestablished diplomatic relations for 1 generation, the bad individual plant of indoor superseded quality with individual plant mixed planting strain more than 1200 of quality better, carries out system again and selects.
3, the breeding method of No. 12, high-quality food flavor according to claim 1, blast resisting, high yield japonica rice town rice is characterized in that beginning artificial infection from 3 generations of selfing identifies bacterial leaf-blight.
4, the breeding method of No. 12, high-quality food flavor according to claim 1, blast resisting, high yield japonica rice town rice, it is characterized in that beginning to inoculate rice blast 5 seedling stages in generation in conjunction with the anti-rice blast of whole process from selfing, high fertilizer of later stage brings out panicle blast to be identified, screens, and strengthens under the high nitrogen fertilizer adverse environmental factor simultaneously and selects to press, strengthen the selection to rice outward appearance and food flavor.
5, the breeding method of No. 12, high-quality food flavor according to claim 1, blast resisting, high yield japonica rice town rice is characterized in that concrete steps are as follows:
1) it is maternal to select for use the good slow ripe intermediate keng rice kind town of free ripe morning phase, output height, blast resisting, food flavor fragrant 24 to do, with the free strain town that blast resisting, exterior quality are good, food flavor is good 511 hybridization acquisition F
060 in seed is F
0
2) with F
0Presoaking and germinating sowing, again with high yield but the military fortune of inferior kind round-grained rice reestablish diplomatic relations for No. 8, more than 600 in seed be CF
0
3) with CF
0Presoaking and germinating sowing, single then this to the greatest extent seedling plant, only control not diseases prevention of worm, select the individual plant that the midwifery growing way is good, disease is light, go out its outward appearance rice matter of rough sight, the eliminating of rice matter difference, it is CF that the good mixing of rice matter is reserved seed for planting
1
4) CF that mixing is reserved seed for planting
1The presoaking and germinating sowing, not diseases prevention of worm is only controlled in individual plant transplanting 1200 strains then, and it is CF that light, comprehensive good individual plant 30 strains of proterties of disease are received in choosing
2
5) CF
2Selfing: the 30 strain CF that will obtain
2Its outward appearance rice matter of indoor sight is eliminated 8 strains, plants 22 strains, according to the screening of yielding ability, aesthetic appearance, chooses that ripe late round-grained rice gets CF in 12 strains
3
6) CF
3Selfing: with the CF that obtains
3Plant 8 strain systems, selected 5 strains are that totally 21 strains obtain CF
4, simultaneously from CF
3Bacterial leaf-blight is identified in the beginning artificial infection;
7) CF
4Selfing: with the CF that obtains
4Plant 14 strain systems, selected 5 strains are that totally 15 strains obtain CF
5
8) CF
5Selfing: with the CF that obtains
5Plant 12 strain systems, eliminate 7 strain systems, selected altogether 23 strains obtain CF
6, simultaneously from CF
5Selfing begins to inoculate rice blast seedling stage in conjunction with the anti-rice blast of whole process, and high fertilizer of later stage brings out panicle blast and identifies, screens;
9) CF
6Selfing: with the CF that obtains
6Plant 17 strain systems, from CF
6Rise by tasting for elected strain system is carried out food flavor, in conjunction with tasting superseded 10 of result, selected altogether 19 strains obtain CF
7
10) CF
7Selfing: with the F that obtains
7Plant 16 strain systems, eliminate 11 strain systems, in conjunction with tasting elected 3 stable strains of result, selected altogether 15 strains;
11) 3 stable strains will being elected to carry out the new lines approval test, the not anti-rice blast of whole process, carrying out the panicle blast inoculation heading stage identifies, elected wherein 1 show as the disease-resistant high yield of high-quality, promptly obtain high-quality food flavor, blast resisting, high yield japonica rice town rice No. 12, continue later on food flavor and taste, select the excellent food flavor kind of No. 12 spies of excellent maintenance town rice in excellent.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102783409A (en) * | 2012-08-21 | 2012-11-21 | 江苏丰源种业有限公司 | Method for breeding high-quality, good-taste and high-yield rice variety |
| CN102893856A (en) * | 2012-07-31 | 2013-01-30 | 江苏丰源种业有限公司 | Method for breeding high-quality high-yield multi-resistance widely adoptable new species paddy rice in simplified mode |
| CN103340147A (en) * | 2013-07-22 | 2013-10-09 | 江苏丰源种业有限公司 | Breeding method of high-yield early-matured soft rice |
| CN103380725A (en) * | 2013-06-26 | 2013-11-06 | 盐城明天种业科技有限公司 | Cultivation method of high-quality, disease-resistance, delay-sowing-resistance and mid-season medium japonica rice breed |
| CN103444517A (en) * | 2013-09-06 | 2013-12-18 | 四川省农业科学院水稻高粱研究所 | Rice blast resistance breeding method for hybrid rice |
| CN105104174A (en) * | 2015-09-18 | 2015-12-02 | 江苏丘陵地区镇江农业科学研究所 | Cultivation method for high-yield japonica rice variety with good taste |
| CN107027621A (en) * | 2017-05-04 | 2017-08-11 | 江苏省农业科学院 | A kind of anti-panicle blast, high-quality, the breeding method of high yield japonica rice |
| CN110169354A (en) * | 2019-06-19 | 2019-08-27 | 湖南杂交水稻研究中心 | A kind of pyramiding breeding method of blast resisting, excellent flavour rice kind |
| CN113875579A (en) * | 2021-10-22 | 2022-01-04 | 宁波市农业科学研究院 | Breeding method of rice blast-resistant soft fragrant japonica rice |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102893856A (en) * | 2012-07-31 | 2013-01-30 | 江苏丰源种业有限公司 | Method for breeding high-quality high-yield multi-resistance widely adoptable new species paddy rice in simplified mode |
| CN102783409A (en) * | 2012-08-21 | 2012-11-21 | 江苏丰源种业有限公司 | Method for breeding high-quality, good-taste and high-yield rice variety |
| CN103380725A (en) * | 2013-06-26 | 2013-11-06 | 盐城明天种业科技有限公司 | Cultivation method of high-quality, disease-resistance, delay-sowing-resistance and mid-season medium japonica rice breed |
| CN103340147A (en) * | 2013-07-22 | 2013-10-09 | 江苏丰源种业有限公司 | Breeding method of high-yield early-matured soft rice |
| CN103444517A (en) * | 2013-09-06 | 2013-12-18 | 四川省农业科学院水稻高粱研究所 | Rice blast resistance breeding method for hybrid rice |
| CN105104174A (en) * | 2015-09-18 | 2015-12-02 | 江苏丘陵地区镇江农业科学研究所 | Cultivation method for high-yield japonica rice variety with good taste |
| CN107027621A (en) * | 2017-05-04 | 2017-08-11 | 江苏省农业科学院 | A kind of anti-panicle blast, high-quality, the breeding method of high yield japonica rice |
| CN110169354A (en) * | 2019-06-19 | 2019-08-27 | 湖南杂交水稻研究中心 | A kind of pyramiding breeding method of blast resisting, excellent flavour rice kind |
| CN113875579A (en) * | 2021-10-22 | 2022-01-04 | 宁波市农业科学研究院 | Breeding method of rice blast-resistant soft fragrant japonica rice |
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