CN103380725A - Cultivation method of high-quality, disease-resistance, delay-sowing-resistance and mid-season medium japonica rice breed - Google Patents
Cultivation method of high-quality, disease-resistance, delay-sowing-resistance and mid-season medium japonica rice breed Download PDFInfo
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Abstract
The invention discloses a cultivation method of a high-quality, disease-resistance, delay-sowing-resistance and mid-season medium japonica rice breed, and belongs to the technology field of plant breeding. The method comprises following steps: (A) selecting Yandao 7 as the female parent and Wuyunjing 8 as the male parent, and having sexual hybridization to obtain F0 seeds; (B) planting the F0 seeds for a generation F1, and harvesting the seeds when the rice is ripe; (C) then selfing and selecting, choosing the single plant, which is rice-stripe-disease resistant (morbidity 0-15%), compact in plant type, early in mature period, good in appearance quality (main indexes: chalky ratio not larger than 30%, chalkiness not larger than 5%), and excellent in comprehensive properties, selfing to the eighth generation namely F8, and obtaining the rice-stripe-disease-resistance, high-quality, delay-sowing-resistance and mid-season medium japonica rice novel breed. The mid-season medium japonica rice novel breed has the advantages of high yield, early mature period, delay sowing resistance, strong disease resistance ability, good stable production performance, excellent rice quality and good commodity.
Description
Technical field
The breeding method of a kind of High quality and diseases resistance of the present invention intermediate keng rice of anti-late sowing kind, belong to field of plant variety breeding technology, more specifically says and be exclusively used in ripe intermediate keng rice new varieties in the anti-late sowing of seed selection High quality and diseases resistance.
Background technology
China has rice breeding advanced in the world achievement, has successively successfully implemented the rice dwarf breeding, three is, the double-linear hybrid rice breeding.Paddy rice is the first crops of China, the improvement of rice varieties is the major fields of China's agri-scientific research always, high-quality, high yield, resist are the important long-term targets of rice breeding more, Jiangsu is japonica rice big producing province, since " eight or five ", the japonica rice breeding in Jiangsu Province has obtained great success, be bred as large quantities of high yields, high-quality, how anti-japonica rice new varieties, for ensureing China's grain security, made positive contribution.In recent years, the rural laborer is more and more nervous, on Rice Production, stripe virus disease, bacterial leaf-blight, rice blast, black streak dwarf and relevant natural calamity are more and more frequent, in the recent period, the area of the light letter cultivations such as that the Jiangsu Province intermediate keng rice is produced is live, late sowing is increasing, thus the intermediate keng rice large tracts of land produce the anti-late sowing of fine quality in the urgent need to resistance, rice in ripe intermediate keng rice new varieties.
Summary of the invention
Technical problem
The object of the invention is to solve above-mentioned problems of the prior art with not enough, find that in many hybridization hybridization schemes and selection " a kind of breeding method of the High quality and diseases resistance intermediate keng rice of anti-late sowing kind " can well realize the problem that goal of the invention exists to solve prior art, be bred as rice matter reach GB superior rice standard, resistance especially show anti-stripe virus disease, anti-late sowing in ripe intermediate keng rice new varieties.
Technical scheme
The breeding method of a kind of High quality and diseases resistance intermediate keng rice of anti-late sowing kind provided by the invention comprises the following steps:
A) select anti-stripe virus disease, blast resisting, middle bacterial blight-resisting, output is high, quality is general slow ripe intermediate keng rice Variety Salt rice No. 7 for maternal, selecting not anti-stripe virus disease, blast resisting, middle bacterial blight-resisting, output is high, product are of fine quality slow ripe intermediate keng rice kind Wuyunjing No.8 is male parent, carries out sexual hybridization and makes the excellent genes polymerization such as output, resistance, quality or complementary and obtain F
0seed;
B) by the F obtained
0seed adds generation plantation F
1, mixed sowing when ripe;
C) F
1in generation, selected with selfing limit, back: select stripe virus disease incidence of disease 0-15%; The individual plant of the white rate of chalk≤30%, chalkiness degree≤5%; To 8 generations of selfing be F
8obtain high resistance stripe virus disease, the slow ripe intermediate keng rice new varieties of high-quality.
Wherein " No. 7 ”Xi Jiangsu Inst. of Coastal Area Agricultural Sciences of salt rice are bred as the slow ripe intermediate keng rice kind of above-mentioned biomaterial, have obtained the protection of new variety of plant power and have authorized, kind power number: CNA20020147.6.
Wherein the slow ripe intermediate keng rice kind of above-mentioned biomaterial " Wuyunjing No.8 " is that Jiangsu (Wujin) rice research institute (the original name Jiangsu Province Wujin County, Jiangsu Province institute of agricultural sciences) is bred as, and 1999 by Jiangsu Province's Crop breed audit (authorization numbering: No. 314th, Soviet Union's kind of careful word).
Beneficial effect
Compared with prior art, the breeding method of a kind of High quality and diseases resistance of the present invention intermediate keng rice of anti-late sowing kind has following advantage and good effect:
Ripe intermediate keng rice new varieties in the anti-late sowing of High quality and diseases resistance that the present invention cultivates, called after " salt rice No. 15 ", its feature is:
In the anti-late sowing of High quality and diseases resistance that the present invention cultivates, ripe intermediate keng rice new varieties " salt rice No. 15 " rice quality is excellent: within 2012, according to Ministry of Agriculture's rice and quality of item supervision and inspection center, test: brown rice rate 86.6%, polished rice rate 76.8%, head rice rate 72.5%, grain length 4.9mm, aspect ratio 1.8, the white rate 30% of chalk, chalkiness degree 3.3%, 1 grade of transparency, disappear 5.8 grades of values of alkali, glue denseness 77mm, amylose content 16.5%, the all indexs of rice quality all reach three grades of superior rice standards of GB, good palatability.See attached list 1.
In the anti-late sowing of High quality and diseases resistance that the present invention cultivates, ripe intermediate keng rice new varieties " salt rice No. 15 " disease resistance is strong: 2012 according to Institute of Plant Protection, academy of agricultural sciences, Jiangsu Province inoculated identification result: high resistance stripe virus disease (incidence of disease 5.0%, 4.26%).Simultaneously sturdy because of " salt rice No. 15 " cane, leaf sheath is embraced the stem consolidation, has fertilizer resistance anti-lodging performance preferably.See attached list 2.
Ripe intermediate keng rice new varieties " salt rice No. 15 " stable high yield in the anti-late sowing of High quality and diseases resistance that the present invention cultivates: participate in ripe middle round-grained rice strain late sowing approval test in our company in 2009,630.8 kilograms of average yield per mus, than No. 3 volume increase 6.20% of contrast Xu rice, reach utmost point significance level; Within 2010, participate in ripe middle round-grained rice late sowing great Qu variety comparative test in our company, 631.6 kilograms of average yield per mus, than No. 3 volume increase 6.15% of contrast Xu rice, reach utmost point significance level.Ripe intermediate keng rice district multiple spot late sowing variety comparative test in the Jiangsu of participation our company tissue in 2011,632.79 kilograms of average yield per mus, than No. 3 volume increase 8.63% of contrast Xu rice, occupy the 3rd.Ripe intermediate keng rice district multiple spot late sowing variety comparative test in the Jiangsu of continuation participation our company tissue in 2012,727.03 kilograms of average yield per mus, increase production 4.22% No. 3 than contrast Xu rice, reaches utmost point significance level.See attached list 3.
In the anti-late sowing of High quality and diseases resistance that the present invention cultivates, ripe intermediate keng rice new varieties " salt rice No. 15 " economical character is good: No. 15 ripe middle round-grained rice late sowing cultivations in Jiangsu Province does of salt rice, the 142.4 days time of infertility, with contrast slowly rice No. 3 similar.The seedling body is strong and vigorous, bud scale green, leaf sheath light green, blade is tall and straight, and plant type is compacter, plant height 95.1cm, with contrasting, Xu rice No. 3 is similar, leaf number of the main culm 17-18 leaf, 5 extend internodes, stooling is stronger, the percentage of earbearing tiller 68.6%, and general mu is fringe 22.1 ten thousand effectively, 135 left and right of every total grain panicle, 126 left and right of the real grain of every fringe, ripening rate is more than 90%, thousand kernel weight 26.6 grams, without awns.Ripe lover when ripe.
Embodiment
Below further illustrate the breeding method of a kind of High quality and diseases resistance of the present invention intermediate keng rice of anti-late sowing kind, but be not used for limiting the scope of the invention.
Embodiment 1: the High quality and diseases resistance intermediate keng rice of anti-late sowing new varieties of the present invention " salt rice No. 15 " Breeding Process (seeing attached list 4) comprise the following steps:
A) select the anti-stripe virus disease of Jiangsu Inst. of Coastal Area Agricultural Sciences's seed selection, blast resisting, middle bacterial blight-resisting, output is high, (details are shown in " seed " the 4th phase in 2004 to the general slow ripe intermediate keng rice Variety Salt rice No. 7 (Old Name salt rice 1229) of quality, Jiangsu Inst. of Coastal Area Agricultural Sciences can provide germ plasm resource) for maternal, select the not anti-stripe virus disease of Jiangsu (Wujin) rice research institute (the original name Jiangsu Province Wujin County, Jiangsu Province institute of agricultural sciences) seed selection, blast resisting, middle bacterial blight-resisting, output is high, product slow ripe intermediate keng rice kind Wuyunjing No.8 (former code name force 9516) of fine quality is male parent, carry out sexual hybridization and make output, resistance, the excellent genes polymerization such as quality or complementary and obtain F
0seed,
Wherein " No. 7 ”Xi Jiangsu Inst. of Coastal Area Agricultural Sciences of salt rice are bred as the slow ripe intermediate keng rice kind of above-mentioned biomaterial, have obtained the protection of new variety of plant power and have authorized, kind power number: CNA20020147.6.Wherein the slow ripe intermediate keng rice kind of above-mentioned biomaterial " Wuyunjing No.8 " is that Jiangsu (Wujin) rice research institute (the original name Jiangsu Province Wujin County, Jiangsu Province institute of agricultural sciences) is bred as, and 1999 by Jiangsu Province's Crop breed audit (authorization numbering: No. 314th, Soviet Union's kind of careful word).
B) by the F obtained
0seed adds generation plantation F
1, mixed sowing when ripe;
C) then selfing limit in limit is selected: anti-stripe virus disease (incidence of disease 0-15%); Plant type is compacter, ripe morning phase, exterior quality excellent (the white rate of leading indicator chalk≤30%, chalkiness degree≤5%).To 8 generations of selfing be F
8obtain ripe intermediate keng rice " salt rice 1075 " in high resistance stripe virus disease, the anti-late sowing of high-quality, called after " salt rice No. 15 ".
The High quality and diseases resistance intermediate keng rice of anti-late sowing new varieties of the present invention " salt rice No. 15 " rice quality is excellent: within 2012, according to Ministry of Agriculture's rice and quality of item supervision and inspection center, test all indexs of its rice quality and all reach three grades of superior rice standards of GB, good palatability.See attached list 1.
No. 15 rice quality indices of subordinate list 1:2012 salt rice
In the anti-late sowing of High quality and diseases resistance that the present invention cultivates, ripe intermediate keng rice new varieties " salt rice No. 15 " disease resistance is strong: 2012 according to Institute of Plant Protection, academy of agricultural sciences, Jiangsu Province inoculated identification result: in anti-middle sense bacterial leaf-blight (3-5 level), with contrast slowly rice No. 3 similar; In anti-panicle blast (2 grades), be better than contrast Xu rice No. 3 (for susceptible 3 grades); Sharp eyespot resistance (S) is better than contrast Xu rice No. 3 (HS); High resistance stripe virus disease (incidence of disease 5.0%, 4.26%), contrast Xu No. 3 performances of rice disease-resistant (incidence of disease 5.32%, 6.25%).Simultaneously sturdy because of No. 15 canes of salt rice, leaf sheath is embraced the stem consolidation, has fertilizer resistance anti-lodging performance preferably.In Table 2.
No. 15 Disease Resistance Identification results of table 2:2012 salt rice
Ripe intermediate keng rice new varieties " salt rice No. 15 " stable high yield: 2009-2012 in the anti-late sowing of High quality and diseases resistance that the present invention cultivates, ripe intermediate keng rice district multiple spot late sowing variety comparative test in ripe middle round-grained rice strain late sowing approval test, late sowing great Qu variety comparative test, Jiangsu in No. 15 participation our company of salt rice, 700 kilograms of left and right of average yield per mu, than No. 3 volume increase 4.22-8.63% of contrast Xu rice, reach utmost point significance level.In Table 3.
Table 3: No. 15 late sowing variety comparative test output situations of different annual salt rice
Table 4: No. 15 seed selections of the High quality and diseases resistance intermediate keng rice of anti-late sowing new varieties salt rice process that the present invention cultivates
Embodiment 2: the High quality and diseases resistance intermediate keng rice of anti-late sowing new varieties of the present invention " salt rice No. 15 " late sowing culture technique main points.
Through experiment and demonstration, the structure of output of " salt rice No. 15 " late sowing cultivation per mu yield more than 700 kilograms: every mu of 22-23 ten thousand fringes, 135 of every total grain panicles, ripening rate 90%, thousand kernel weight 27 grams.The late sowing high-yield culturing should be given full play to the advantage of its large fringe, on the basis of suitable spike number, attacks large fringe guarantor grain and weighs.By cultivating the strong seedling of many tillers, rational close planting, urge early to send out early enough seedlings, and the raising Population Quality, accomplish fluently the high yield basis, guaranteeing on the basis of suitable spike number, the short strong large fringe of bar, thus reach the purpose that the large grain of fringe foot fringe is taken back again high yield.The late sowing culture technique main points that should grasp are:
(1) optimum period light seeding, cultivate strong seedling: " No. 15 ” Jiangsu Province of salt rice are ripe middle round-grained rice late sowing cultivation in doing, generally with early and middle ten days sowing in June, length of time rice seedlings grow 18-20 days.Watery ricenursery seeding quantity 25-30 kg/acre, non-irrigated seedling planting amount 35-40 kg/acre, land for growing field crops sowing quantity 2.5-3 kg/acre.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.
(2) rational close planting, even surface planting: plant experimentally result and show: in upper fertility field mu plant 1.8 ten thousand caves, seeding row spacing 13cm * 28cm, every cave 2-3 this, every mu of Basic Seedling 7-8 ten thousand; The poor field mu of fertility is planted 20,000 caves, seeding row spacing 13cm * 25cm, 2, every cave, every mu of Basic Seedling 7-8 ten thousand.To conscientiously improve and plant quality simultaneously, for early going out tiller, seedling enough early, improve Population Quality, for striving many fringes, attack large fringe and lay a solid foundation.
(3) science rich water, coordinate colony: " salt rice No. 15 " per mu yield is cultivated more than 700 kilograms, and the total fertilizer requirement of Honda amounts to purity nitrogen 20 kg/acres of left and right.Phosphorus, potash fertilizer are used in collocation, and phosphorus, potash fertilizer are main as base manure.Fertilizer application is grasped the principle of " front heavy, middle control, rear benefit ", and account for 60% nitrogenous fertilizer early stage (base manure and tillering fertilizer), and fringe granulated fertilizer accounts for 40%.Water starch management should be taked an irrigation method of " shallow water transplants seedlings, very little water is lived, thin moisture tiller, water conservation heading flowering, alternation of wetting and drying ".Requirement is sent out foot in 15-20 days after cultivation and is waited the fringe seedling, and when mu stem tiller reaches while waiting fringe seedling, field is put in the draining gradation, control peak seedling and be no more than 280,000/mu, finally become fringe 22-23 ten thousand/mu.Gather in the crops ponding between drained field first about 7 days.
(4) the anti-worm of curing the disease, keep a full stand of seedings and increase fringe: according to the pests occurrence rule of disease, worm, crop smothering during paddy growth, carry out in time preventing and controlling, especially under the high-yield culturing condition, because nitrogen level is higher, should note carrying out the preventing and controlling such as leaf-roller, paddy stem borer, rice fulgorid, banded sclerotial blight, rice blast, bacterial leaf-blight, black streak dwarf and weeds.
Claims (1)
1. the breeding method of a kind of High quality and diseases resistance of the present invention intermediate keng rice of anti-late sowing kind comprises the following steps:
A) selecting the salt rice is female parent No. 7, and selecting Wuyunjing No.8 is male parent, carries out sexual hybridization, obtains F
0 seed;
B) by the F obtained
0 seed adds generation plantation F
1 , mixed sowing when ripe;
C) F
1 in generation, selected with selfing limit, back: select stripe virus disease incidence of disease 0-15%; The individual plant of the white rate of chalk≤30%, chalkiness degree≤5%; To 8 generations of selfing be F
8 obtain high resistance stripe virus disease, the slow ripe intermediate keng rice new varieties of high-quality.
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| US8283537B1 (en) * | 2011-10-10 | 2012-10-09 | Ricetec, Ag | Rice hybrid XP754 |
| US8426708B1 (en) * | 2012-01-30 | 2013-04-23 | California Cooperative Rice Research Foundation, Inc. | Rice cultivar M-105 |
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2013
- 2013-06-26 CN CN2013102610750A patent/CN103380725A/en active Pending
Patent Citations (5)
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| CN1817097A (en) * | 2006-01-10 | 2006-08-16 | 江苏丘陵地区镇江农业科学研究所 | Rice No.9 breeding method against leaf drop streak |
| CN101248752A (en) * | 2008-03-18 | 2008-08-27 | 江苏丘陵地区镇江农业科学研究所 | Good quality flavor, rice blast resistance and high yield japonica rice Zhendao No. 12 breeding method |
| CN101300957A (en) * | 2008-06-18 | 2008-11-12 | 江苏丘陵地区镇江农业科学研究所 | Method for breeding Zhen dao No. 13 using ladder polymerization improved technique |
| US8283537B1 (en) * | 2011-10-10 | 2012-10-09 | Ricetec, Ag | Rice hybrid XP754 |
| US8426708B1 (en) * | 2012-01-30 | 2013-04-23 | California Cooperative Rice Research Foundation, Inc. | Rice cultivar M-105 |
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Application publication date: 20131106 |