CN103210834A - Method for breeding non-glutinous rice and glutinous rice varieties through non-glutinous rice and glutinous rice hybridization - Google Patents
Method for breeding non-glutinous rice and glutinous rice varieties through non-glutinous rice and glutinous rice hybridization Download PDFInfo
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Abstract
The invention discloses a method for breeding non-glutinous rice and/or glutinous rice varieties through non-glutinous rice and glutinous rice hybridization. According to the invention, Wuyunjing No.21 is selected as a female parent, and is hybridized with Wuxiangnuo 2402; and breeding is carried out, such that a required variety is obtained. Through six generations of selection and resistance identification, the bred variety has the advantages of compact plant type, delicate and pretty growth state, good yield, good lodging resistance, and good quality.
Description
Technical field
The present invention relates to the breeding method of a plant species, more specifically to a kind of method by efficient seed selection japonica rice of the glutinous friendship of round-grained rice and/or glutinous rice variety.
Background technology
Paddy rice is the first crop of China, and the paddy rice of China cultivation mainly contains two subspecies, i.e. Xian subspecies and round-grained rice subspecies, and round-grained rice, glutinous rice variety are that our daily life and industrial production are indispensable.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 improvement of paddy rice resistance and quality more shows.The existing main most output of glutinous rice variety of planting in Jiangsu are not high, feel stripe disease, and degenerating is also appearred in the resistance of rice blast, and japonica rice variety comprehensive resistance and quality are still unsatisfactory.Therefore, seed selection high-quality food flavor, high yield and the strong new varieties of comprehensive resistance are important goals of Jiangsu and peripheral province rice breeding.
Summary of the invention
The objective of the invention is to solve above-mentioned the deficiencies in the prior art, a kind of method by the efficient seed selection new varieties of the glutinous friendship of round-grained rice is provided, thereby cultivate existing good exterior quality the good strong paddy rice new lines of food flavor quality, high yield, comprehensive resistance is arranged again, 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 to solve the deficiencies in the prior art, and the method that the present invention relates to a kind of round-grained rice glutinous friendship seed selection japonica rice and/or glutinous rice variety may further comprise the steps:
A) select for use military fortune round-grained rice to do maternal and military fragrant glutinous 2402 hybridization for No. 21 and obtain the F0 seed;
B) with F0 presoaking and germinating sowing, transplant planting is removed pseudostationary, gather in the crops the E1 seed;
C) the F1 seed is weighed 70 grams, vernalization sowing.Transplant planting 1000 strains, selecting plant type individual plant good, ripe lover when ripe is F2;
D) when F2 seed partial desiccation, eliminate chalk individual plant in vain>30%, the plantation of following season is treated in the individual plant mixing of remainder;
E) individual plant population mixture F3 is live, gather in the crops the F4 seed;
F) the F4 seed is weighed 90 grams, vernalization sowing, transplant planting, when ripe choosing receive that disease is light, single-strain tassel number is many, fringe shape is big and neatly and seed big and full, the individual plant fast and unanimous between the higher and lower levels that is in the milk is F5;
G) individual plant of screening high-quality (the white rate of chalk<30%) when F5 seed partial desiccation;
H) with F5 sowing, transplant planting, screen ripe lover and have stripe disease and the bacterial leaf-blight disease resistance strain be F6;
I) F6 is screened respectively, obtain japonica rice strain and/or glutinous rice strain.
In the breeding method of the present invention, select that good palatability, output height, wide adaptability, disease resistance are strong for use, ripe lover's of new generation super japonica rice variety does maternally,, high yield strong with disease resistance, ripe lover's glutinous rice new varieties (being) hybridization is at F
2In generation, selected individual plant, F
3In generation, mix live, F
4In generation, selected individual plant again; Before the F4 seed does not dry, go out roughly, eliminate the individual plant of exterior quality difference, the good individual plant of screening exterior quality; Begin artificial infection from 5 generations of selfing and identify bacterial leaf-blight and stripe disease screening; Begin for 6 booting stage in generation in conjunction with the anti-rice blast of whole process, to carry out evaluation, the screening of blast resisting from selfing with mixing biological strain inoculation panicle blast; When identifying, output, is elected to the good material of comprehensive proterties in conjunction with ripe phase, outward appearance, food flavor quality and comprehensive resistance.
The invention has the beneficial effects as follows:
1. best in quality, food flavor is good, and the rice commodity is good
Strictness screening by above several steps will select the paddy rice new lines that exterior quality is good, food flavor is good, commodity is good.
2. comprehensive resistance is strong, and yield stability is good
By identifying bacterial leaf-blight and stripe disease screening for the beginning artificial infection from F5; Begin for 6 booting stage in generation in conjunction with the anti-rice blast of whole process, to carry out evaluation, the screening of blast resisting from selfing with mixing biological strain inoculation panicle blast; In conjunction with ripe phase, outward appearance, food flavor quality, elected rice material comprehensive resistance was strong when output was identified, yield stability is good.
By screening for many years, more than the material thousand kernel weight bred 26 grams, comprehensive proterties is good, and self regulating power is strong, and high and stable yield is good, easily cultivation.
By selecting the seedling low body strong, 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 to grow, and the later stage annesl is suitable to be transferred, ripe lover's material, the inevitable plant type of the paddy rice new lines of breeding is good, ripe lover.
Embodiment
Embodiment
Positive season in 2003 the Jurong select for use precocity, high yield, anti-stripe disease in the military fortune of ripe intermediate keng rice kind round-grained rice do that maternal (military fortune round-grained rice is the rice varieties of Wujin, Jiangsu paddy rice research institute No. 21 for No. 21, mass selling in the market, or quote) from academy of agricultural sciences, Jiangsu Province rice germplasm resources bank, with military fragrant glutinous 2402 (the glutinous strains of ripe late round-grained rice in being of the glutinous strain of ripe late round-grained rice among blast resisting, high yield, the ripe lover, sale being arranged on the market, or quotes from academy of agricultural sciences, Jiangsu Province rice germplasm resources bank) to obtain 60 in seed be F in hybridization
0, the spring in 2004 was planted 16 strains in Hainan, remove the individual plant the same with maternal growing way, got F1; After in 6 generations, selected and resistance is identified, the plant type compactness of breeding, growth is delicate and pretty, yielding ability good, lodging resistance is strong, (the peaceful round-grained rice of yield increased all increases production more than 6% No. 1 quality better, the withered incidence of disease of rice stripe leaf is below 5%, bacterial leaf-blight is the 1-3 level, the ear stem pest are the 1-2 level, and quality reaches GB more than 3 grades) precocious late japonica rice strain-town 5108 and glutinous rice strain-town glutinous 683.
Town 5108 and the glutinous 683 seed selections processes in town (in chronological order):
The seed selection process:
Plant experimentally through test, the output of town 5108 and the glutinous 683 per mu yield 600-650Kg in town constitutes: every mu of 20-22 ten thousand fringes, and every total grain panicle is counted 130-140, and ripening rate is more than 90%, more than thousand kernel weight 26 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 usefulness, 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 above; it only is the specific embodiment of the present invention; technical scheme of the present invention is in other place and all obtained essentially identical result At All Other Times; therefore protection scope of the present invention is not limited thereto; any variation or replacement of expecting without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (1)
1. the method for round-grained rice glutinous friendship seed selection japonica rice and/or glutinous rice variety may further comprise the steps:
A) select for use military fortune round-grained rice to do maternal and military fragrant glutinous 2402 hybridization for No. 21 and obtain the F0 seed;
B) with F0 presoaking and germinating sowing, transplant planting is removed pseudostationary, gather in the crops the F1 seed;
C) the F1 seed is weighed 70 grams, vernalization sowing, transplant planting, selecting plant type individual plant good, ripe lover when ripe is F2:
D) individual plant of the superseded white rate of chalk>30% when F2 seed partial desiccation is treated the plantation of following season with the individual plant mixing of remainder;
E) individual plant population mixture F3 is live, gather in the crops the F4 seed;
F) the F4 seed is weighed 90 grams, vernalization sowing, transplant planting, when ripe choosing receive that disease is light, single-strain tassel number is many, fringe shape is big and neatly and seed big and full, the individual plant fast and unanimous between the higher and lower levels that is in the milk is F5;
G) individual plant of the white rate of screening chalk<30% when F5 seed partial desiccation;
H) with F5 sowing, transplant planting screens ripe lover and has stripe disease and the strain of bacterial leaf-blight disease resistance is F6;
I) F6 is screened respectively, obtain japonica rice strain and/or glutinous rice strain.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103430828A (en) * | 2013-08-14 | 2013-12-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding method for improving high and stable yield of rice |
CN106489727A (en) * | 2015-09-08 | 2017-03-15 | 无锡南理工科技发展有限公司 | A kind of bacterial Footrot resistance Japonica two line hybrid rice method |
CN110050688A (en) * | 2019-04-09 | 2019-07-26 | 武汉弘耕种业有限公司 | A kind of selection of hybrid rice restorer line |
-
2013
- 2013-02-02 CN CN 201310051790 patent/CN103210834A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103430828A (en) * | 2013-08-14 | 2013-12-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding method for improving high and stable yield of rice |
CN103430828B (en) * | 2013-08-14 | 2015-06-03 | 江苏丘陵地区镇江农业科学研究所 | Breeding method for improving high and stable yield of rice |
CN106489727A (en) * | 2015-09-08 | 2017-03-15 | 无锡南理工科技发展有限公司 | A kind of bacterial Footrot resistance Japonica two line hybrid rice method |
CN110050688A (en) * | 2019-04-09 | 2019-07-26 | 武汉弘耕种业有限公司 | A kind of selection of hybrid rice restorer line |
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Application publication date: 20130724 |