CN107251834B - A kind of selection of precocity intermediate keng rice kind - Google Patents
A kind of selection of precocity intermediate keng rice kind Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/02—Methods or apparatus for hybridisation; Artificial pollination ; Fertility
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
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Abstract
The present invention relates to a kind of selections of precocious intermediate keng rice kind, belong to field of plant variety breeding technology.Include: with salt rich 47 for female parent, with Xu rice No. 3 for male parent, carries out artificial hybridization combo in Yancheng, Jiangsu Province and obtain F0Seed, winter in the same year take Sanya, Hainan plantation to, mix when mature and receive F1For seed；F2To F5In generation, plants in Dandong, Yancheng, Jiangsu Province, Dandong, Yancheng, Jiangsu Province composite variety respectively, and each generation plants two parents simultaneously and compares, and sowing is mixed when mature, is selected in the ripe phase of single plant between two parents, the same conventional breeding of other characters；F6In generation, identifies garden, F in Yancheng plantation strain7In generation, is bred as precocious intermediate keng rice new varieties " salt rice 200 ", and the kind is 7-8 days more precocious than control Xu rice No. 3 in Jiangsu, and the indexs such as yield, resistance, quality meet rice varieties approving standard above the provincial level.
Description
Technical field
The present invention relates to a kind of selections of precocious intermediate keng rice kind, belong to field of plant variety breeding technology, specifically
It is to be exclusively used in ripe intermediate keng rice new varieties in breeding precocity.
Background technique
Rice is the most important cereal crops in China.There is rice breeding advanced in the world to achieve in China, rice breeding warp
Leap big three times has been gone through, has been that high stalk changes breeding technique of short stem first, rice average yield per mu is made to rise to 300 public affairs from 100 kilograms
Jin；It is that China's rice, by the fast development of three systems or two-line hybrid rice, is made for mark with " conventional Rice changes hybrid paddy rice " for the second time
Average yield per mu rises to 400 kilograms；Third time be with " super rice kind " be representative, national rice average yield per mu up to 450 kilograms,
Yield potentiality is more than 800 kgs/acre.In recent years, global climate is abnormal, and the extreme weathers such as high (low) temperature, arid or flood occur
Frequency is higher, and the stability of yield is inadequate between most kind years；Secondly, rice blast, stripe virus disease, black streak dwarf and
The pest and disease damages such as plant hopper, snout moth's larva are popular and cause disaster and also constitute a threat to safely to Rice Production and quality of rice；Especially with China
The fast development of social economy and urbanization process are carried forward vigorously, and the main labour in rural area largely shifts, and agricultural production is to collection
Reduction, scale, mechanization transformation, direct sowing on dry paddy field, machine live streaming and rice planting technology have become main rice cropping side
Formula.Jiangsu Rice Production is badly in need of the intermediate keng rice rice varieties that the time of infertility is shorter, other characters are excellent.Currently, Jiangsu large area water
Partially long defect of ripe intermediate keng rice kind generally existing breeding time in being applied in rice production, late growth stage be especially in the milk in after
Phase is easy to be influenced by low temperature, arid or flood etc. and yield is caused to be remarkably decreased；Due to influence China of the factors such as light temperature
Rice in north china kind plants its time of infertility in Jiangsu intermediate keng rice area and too short causes yield relatively low again.Therefore, breeding is given birth to entirely
The precocious intermediate keng rice kind that phase is shorter, other characters are excellent is further to stabilize and increase Jiangsu or even China's Rice Production list
Produce the effective way with total yield.
Summary of the invention
Technical problem
It is an object of the invention to solve, above-mentioned existing in the prior art " time of infertility is shorter, other characters are excellent
The problem of precocious intermediate keng rice kind " and deficiency, applicant pass through many years experimental study, find in many hybrid selection methods
" a kind of selection of precocity intermediate keng rice kind " can be very good to realize that goal of the invention is of the existing technology to solve the problems, such as,
It is bred as the precocious intermediate keng rice kind that the time of infertility is shorter, other characters are excellent.
Technical solution
A kind of selection of precocious intermediate keng rice kind provided by the invention, including, it is female parent with salt rich 47, with Xu rice 3
Number be male parent, Yancheng, Jiangsu Province carry out artificial hybridization combo obtain F0Seed, winter in the same year take Sanya, Hainan plantation F to1It is generation, mature
When mixed sowing；F2To F5In generation, plants in Dandong, Yancheng, Jiangsu Province, Dandong, Yancheng, Jiangsu Province composite variety respectively, each generation
Two parents are planted simultaneously to compare, and sowing, F are mixed when mature6In generation, identifies garden in Yancheng plantation strain, every substitution menu strain
The ripe phase is between two parents；F7In generation, is bred as more early than control Xu rice No. 3 in Huaibei district of Jiangsu province's Planted time of infertility
Ripe 7-8 days precocious intermediate keng rice new varieties.
A kind of selection of precocious intermediate keng rice kind, specifically includes:
(1) select national standard second level superior rice, in the precocious japonica rice of anti-panicle blast and bacterial leaf-blight " rich 47 " of salt are female parent, choosing
It is with intermediate keng rice ripe in national standard second level superior rice, bacterial blight-resisting, high resistant to rice blast, highly resistance stripe virus disease " Xu rice No. 3 "
Male parent carries out artificial hybridization combo in Yancheng, Jiangsu Province and obtains F0Seed, the winter in the same year is by the F of acquisition0Seed takes Sanya, Hainan plantation to
F1, sowing is mixed when mature；
(2) by the F of mixed receipts1Seed plants F in Dandong2In generation, plantation single plant quantity is no less than 500 plants, while planting two
A parent compares, and sowing is mixed when mature, and the standard for being selected in single plant is the ripe phase between two parents, other characters are the same as normal
Advise breeding；
(3) by the last year mixed F received2Seed plants F in Yancheng, Jiangsu Province3In generation, plants 200-300 plants of single plant quantity, same plantation
Two parents compare, and sowing is mixed when mature, and the standard for being selected in single plant is the ripe phase between two parents, other characters are same
Conventional breeding；
(4) by the last year mixed F received3Seed plants F in Dandong4In generation, plants 200-300 plants of single plant quantity, same plantation
Two parents compare, and sowing is mixed when mature, and the standard for being selected in single plant is the ripe phase between two parents, other characters are same
Conventional breeding；
(5) by the last year mixed F received4Seed plants F in Yancheng, Jiangsu Province5In generation, plants 200-300 plants of single plant quantity, same plantation
Two parents compare, and fine individual plant seed is selected when mature, and each single plant is individually numbered, and are selected in the standard of single plant for Jie of ripe phase
Between two parents, the same conventional breeding of other characters；
(6) F for harvesting last year5Single-strain seed plants in Yancheng, Jiangsu Province and identifies garden F at strain6In generation, equally plants two parents
Originally it compares, heading stage carries out bacterial leaf-blight and panicle blast resistance inoculated identification respectively, and it is ripe for being selected in the standard of strain (single plant)
Phase between two parents, the same conventional breeding of other characters；
(7) F that character upper one year is stable6Enter variety comparative test for the mixed seed received in strain identification garden, equally plants two
A parent compares, at the same carry out the ripe phase, yield, resistance, quality Comprehensive Traits screening compare, select yield with compare Xu rice 3
Number quite or the underproduction be no more than 3%；The index of quality reaches the above superior rice standard of national standard second level, anti-middle bacterial blight-resisting, sick grade
0-3 grades；The sick grade of anti-middle sense rice blast, panicle blast disease incidence and panicle blast loss index is 0-5 grades.F7It is bred as in Jiangsu
The Northern Area of Huaihe River Planted time of infertility is 7-8 days more precocious than control Xu rice No. 3, and yield, resistance, the index of quality meet above the provincial level
The precocious japonica rice new varieties of rice varieties approving standard.
The same conventional breeding of other characters are as follows: F2To F5It selects plant type compacter for per generation and compares Xu rice No. 3 quite,
Bud scale green, than compareing No. 3 short 3-5cm of Xu rice, leaf number of the main culm 17-18 leaf and all indexs of rice quality reach national standard
The single plant of the above superior rice standard of second level, F5In generation, also selects anti-middle bacterial blight-resisting, and sick grade 0-3 grades；Anti- middle sense rice blast, fringe
The sick grade of neck pest disease incidence and panicle blast loss index is 0-5 grades.
Wherein above-mentioned biomaterial precocity japonica rice variety " rich 47 " of salt be Liaoning Province salt-soda soil research on utilization thus it is photosensitive not
Educate be " AB005S " transformation all kinds of novel sterile lines for female parent, it is naturally miscellaneous using the kinds such as " Feng Jin ", " distant round-grained rice 5 " as male parent
Hand over system to select, performance national standard second level superior rice, in anti-panicle blast and the features such as bacterial leaf-blight.It is examined by national kind within 2006
Fixed (authorization number: state examines rice 2006068).
Wherein ripe intermediate keng rice kind " Xu rice No. 3 " is the Jiangsu Xu-Huai area Xuzhou institute of agricultural sciences with " town in above-mentioned biomaterial
Rice 88 " is as female parent, and with " Taiwan rice C " for male parent, hybridization combo breeding is formed, and shows national standard second level superior rice, bacterial leaf spot resistant
The features such as disease, high resistant to rice blast, highly resistance stripe virus disease.It (authorization number: revives by Jiangsu Province's variety certification and examines rice within 2003
200306).Obtain within 2005 National Botanical new varieties power protection authorization (kind power number: CNA20030453.4).
Beneficial effect
Compared with prior art, a kind of selection of precocious intermediate keng rice kind of the present invention has the following advantages that and actively imitates
Fruit.
The precocious intermediate keng rice new varieties that the method for the present invention is bred as, are named as " salt rice 200 ", feature is:
Precocious intermediate keng rice new varieties " salt rice 200 " economical character of the invention is excellent: 2014-2016 " salt rice 200 " exists
Yancheng, Jiangsu Province plantation, it is time of infertility average out to 141 days, late-maturing 12 days richer by 47 than control salt than compareing the precocity 7 days of Xu rice No. 3.Seedling
Seedling is short strong, and bud scale green, leaf sheath light green, blade is tall and straight, and plant type is compacter, plant height 95.0cm, than compareing No. 3 short 3- of Xu rice
5cm, leaf number of the main culm 17-18 leaf, 5 elongation internodes, stooling is stronger, the percentage of earbearing tiller 68.6%, the effective fringe 22.1 ten thousand of mu, every fringe
Total grain 130, every fringe reality grain 125 or so, setting percentage 95% or so, 26.1 grams of mass of 1000 kernel, no awns.It is shown in Table 1.
Precocious intermediate keng rice new varieties " salt rice 200 " rice quality of the invention is excellent: 2016 according to Ministry of Agriculture's rice and product
The test of quality supervision and test test center: Coarse Rice Rate 85.6%, polished rice rate 76.6%, head rice rate 74.1%, grain length 4.8mm,
Length-width ratio 1.8, chalkness ratio 12%, chalkiness degree 1.5%, 1 grade of transparency, 7.0 grades of caustic SCC, gel consistence 70mm, amylose contains
Amount 15.9%, all indexs of rice quality reach national standard second level superior rice standard, and palatability is good.It is shown in Table 2.
Precocious intermediate keng rice new varieties " salt rice 200 " disease resistance of the invention is strong: 2016 according to Institute of Plant Protection, academy of agricultural sciences, Jiangsu Province
Inoculated identification result: seedling rice blast is immune；Middle bacterial blight-resisting (3 grades), better than control Xu rice No. 3；In anti-panicle blast (2 grades), by force
In control Xu rice No. 3 (for susceptible 3 grades)；Sharp eyespot resistance (S) is better than Xu rice No. 3 (HS) of control；(the morbidity of highly resistance stripe virus disease
Rate 5.0%, 4.26%), control No. 3 performances of Xu rice are disease-resistant (disease incidence 5.32%, 6.25%).Simultaneously because of " salt rice 200 " plant
Shorter, stem is sturdy, and leaf sheath embraces stem consolidation, has preferable fertilizer resistance anti-lodging performance.It is shown in Table 3.
Precocious intermediate keng rice new varieties " salt rice 200 " yielding ability of the invention is preferable: 2015-2016, and " salt rice 200 " participates in
This organized in ripe intermediate keng rice new lines multiple spot variety comparative test, 596.39-623.65 kilograms of per mu yield discharge amplitude, average yield per mu
610 kilograms or so, than compareing No. 3 volume increase 2.85-3.65% of Xu rice, averagely increase production 3.25%.It is shown in Table 4.
Detailed description of the invention
Fig. 1 is precocious intermediate keng rice new varieties " salt rice 200 " breeding pedigree schematic diagram of the invention
Specific embodiment
A kind of breeding method of precocious intermediate keng rice kind of the present invention that the following is further explained with reference to the attached drawings, but be not limited to
The scope of the present invention.
Precocious intermediate keng rice breeding of new variety process (being shown in Table 5) of the invention is as follows:
" rich 47 " of salt are Liaoning Province salt-soda soil research on utilization so photosensitive sterile line to biomaterial precocity japonica rice variety
All kinds of novel sterile lines of " AB005S " transformation are female parent, using the kinds such as " Feng Jin ", " distant round-grained rice 5 " as male parent, natural hybridization system
Select, performance national standard second level superior rice, in anti-panicle blast and the features such as bacterial leaf-blight.Pass through national variety certification within 2006
(authorization number: state examines rice 2006068).
In biomaterial ripe intermediate keng rice kind " Xu rice No. 3 " be the Jiangsu Xu-Huai area Xuzhou institute of agricultural sciences using " town rice 88 " as
Female parent, with " Taiwan rice C " for male parent, hybridization combo breeding is formed, and shows national standard second level superior rice, bacterial blight-resisting, highly resistance rice
The features such as seasonal febrile diseases, highly resistance stripe virus disease.It (authorization number: revives by Jiangsu Province's variety certification and examines rice 200306) within 2003.
Obtain within 2005 National Botanical new varieties power protection authorization (kind power number: CNA20030453.4).
(1) 2008 year summer, the national standard that the field tested by Yancheng, Jiangsu Province sheet selects Liaoning Province salt-soda soil research on utilization to be bred as
Second level superior rice, in the precocious japonica rice of anti-panicle blast and bacterial leaf-blight " (details are shown in " rice in north china " 2007 the 5th to rich 47 " of salt
Phase) it is female parent, the national standard second level superior rice for selecting the Xu-Huai area Xuzhou institute of agricultural sciences in Jiangsu to be bred as, bacterial blight-resisting, highly resistance rice blast
Ripe intermediate keng rice " Xu rice No. 3 " in disease, highly resistance stripe virus disease (details are shown in " Jiangsu's agriculture journal " the 1st phase of volume 20 in 2004)
For male parent, artificial hybridization combo is carried out in Yancheng, Jiangsu Province and obtains F033, seed, the winter in the same year is by the F of acquisition0Seed belt Sanya, Hainan
Plant F1, field number 8G106,12 plants of seedling, mixed sowing when mature；
(2) 2009 years by the F of mixed receipts1Seed plants F in Dandong2, field number 9GF2106, plantation single plant quantity
556 plants, while planting two parents and comparing, sowing is mixed when mature, the standard for being selected in single plant is the ripe phase between two parents
Between, the same conventional breeding of other characters；
(3) 2010 years F by last year mixed receipts2Plant F in seed field tested by Yancheng, Jiangsu Province sheet3, field number 0G131, kind
280 plants of single plant quantity are planted, two parents is equally planted and compares, sowing is mixed when mature, is selected in the standard of single plant for Jie of ripe phase
Between two parents, the same conventional breeding of other characters；
(4) 2011 years F by last year mixed receipts3Seed plants F in Dandong4, field number 1G232, plantation single plant quantity
It 260 plants, equally plants two parents and compares, sowing is mixed when mature, the standard for being selected in single plant is the ripe phase between two parents
Between, the same conventional breeding of other characters；
(5) 2012 years F by last year mixed receipts4Plant F in seed field tested by Yancheng, Jiangsu Province sheet5, field number 2G306, kind
220 plants of single plant quantity are planted, two parents is equally planted and compares, 35 plants of fine individual plant seed are selected when mature, each single plant list
Solely number, the standard for being selected in single plant are the ripe phase between two parents, the same conventional breeding of other characters；
(6) 2013 years F for harvesting last year5It plants strain and identifies garden (F in single-strain seed field tested by Yancheng, Jiangsu Province sheet6
Generation), field number 3G mirror 171~205 is equally planted two parents and is compared, and heading stage carries out bacterial leaf-blight and fringe neck respectively
Pest resistance inoculated identification, the standard for being selected in strain (single plant) are the ripe phase between two parents, the same conventional breeding of other characters.
5 strain identification garden seeds that character is neatly stable, Comprehensive Traits are excellent such as receiving 3G mirror 200 are mixed when mature enters next year strain
Variety comparative test；Remaining single plant for continuing to select Comprehensive Traits excellent enters next year strain identification garden；
(7) it will mix and taken in into variety comparative test, field number 4G product 101~105 when the stable strain maturation of character upper one year,
The screening of the Comprehensive Traits such as ripe phase, yield, resistance, quality, adaptability is carried out to compare, phene neat and consistent, plant type is compacter,
The ripe phase is early (time of infertility 140 days or so, 7-8 days more precocious than control Xu rice No. 3), and exterior quality is excellent, and Comprehensive Traits are excellent, mature
When obtain F7Generation is the precocious intermediate keng rice new varieties being bred as.
The same conventional breeding of other characters are as follows: F2To F5It selects plant type compacter for per generation and compares Xu rice No. 3 quite,
Bud scale green, than compareing No. 3 short 3-5cm of Xu rice, leaf number of the main culm 17-18 leaf and all indexs of rice quality reach national standard
The single plant of the above superior rice standard of second level, F5In generation, also selects anti-middle bacterial blight-resisting (DB32/T 1122-2007 rice varieties
(being) bacterial blight method and evaluation of resistance technical regulation), sick grade 0-3 grades；Anti- middle sense panicle blast (NY/T 2646-
2014 rice varieties test blast resistance identification and assessment technique regulation), panicle blast disease incidence and panicle blast loss index
Sick grade is 0-5 grades.
Wherein 4G product 105 (upper code name 3G mirror 200) precocious intermediate keng rice new varieties name salt rice 200." salt rice 200 " prematureness
Good: 2014-2016 " salt rice 900 " is planted the time of infertility 141 days in Yancheng, Jiangsu Province, than compareing the precocity 7 days of Xu rice No. 3, is compared
According to salt rich 47 late-maturing 12 days.It is shown in Table 1.
Table 1:2014-2016 " salt rice 200 " is in Yancheng, Jiangsu Province time of infertility number of days
" salt rice 200 " rice quality is excellent: testing according to Ministry of Agriculture's rice and quality of item supervision and inspection center within 2016
All indexs of its rice quality reach national standard second level superior rice standard.It is shown in Table 2.
Table 2:2016 " salt rice 200 " rice quality index
" salt rice 200 " disease resistance is strong: 2016 according to Institute of Plant Protection, academy of agricultural sciences, Jiangsu Province inoculated identification result: seedling rice blast is immune；
Middle bacterial blight-resisting (3 grades), better than control Xu rice No. 3；In anti-panicle blast (2 grades), be better than control Xu rice No. 3 (3 grades)；Banded sclerotial blight
Resistance (S) is better than Xu rice No. 3 (HS) of control；Highly resistance stripe virus disease (disease incidence 5.0%, 4.26%) compares Xu rice No. 3 performances
Disease-resistant (disease incidence 5.32%, 6.25%).Simultaneously because " salt rice 200 " plant is shorter, stem is sturdy, and leaf sheath embraces stem consolidation, has
Preferable fertilizer resistance anti-lodging performance.It is shown in Table 3.
Table 3:2016 " salt rice 200 " Disease Resistance Identification result
" salt rice 200 " yielding ability is preferable: 2015-2016, " salt rice 200 " participate in this organized in ripe intermediate keng rice new product
It is multiple spot variety comparative test, 596.39-623.65 kilograms of per mu yield amplitude, increases than control Xu rice No. 3 by 610 kilograms of average yield per mu or so
2.85-3.65% is produced, averagely increases production 3.25%.It is shown in Table 4.
Table 4:2015-2016 " salt rice 200 " variety comparative test yield result
Table 5: precocious intermediate keng rice new varieties " salt rice 200 " breeding is passed through
Claims (1)
1. a kind of selection of precocity intermediate keng rice kind, comprising the following steps:
It is female parent with salt rich 47, with Xu rice No. 3 for male parent, carries out artificial hybridization combo in Yancheng, Jiangsu Province and obtain F0Seed, F0Seed
Winter in the same year, which brings, plants harvest F to Sanya, Hainan1In generation, mixes sowing when mature；F2To F5Generation respectively Dandong, Yancheng, Jiangsu Province,
Dandong, Yancheng, Jiangsu Province composite variety are planted, and each generation plants two parents simultaneously and compares, and sowing, F are mixed when mature6Generation
In Yancheng, plantation strain identifies garden, and every ripe phase for substituting into menu strain is between two parents； F7In generation, is bred as in Huaibei district of Jiangsu province
The regional Planted time of infertility is than No. 3 precocious 7-8 days precocious intermediate keng rice new varieties of control Xu rice；
Wherein method particularly includes:
(1) selecting salt rich 47 is female parent, and selecting Xu rice No. 3 is male parent, carries out artificial hybridization combo in Yancheng, Jiangsu Province and obtains F0Kind
Son, the winter in the same year is by the F of acquisition0Seed belt to Sanya, Hainan plants F1, sowing is mixed when mature；
(2) by the F of mixed receipts1Seed plants harvest F in Dandong2In generation, plantation single plant quantity is no less than 500 plants, while planting two
A parent compares, and sowing is mixed when mature, and the standard for being selected in single plant is the ripe phase between two parents, other characters are the same as normal
Advise breeding；
(3) by the last year mixed F received2Seed plants F in Yancheng, Jiangsu Province3In generation, plants 200-300 plants of single plant quantity, same plantation two
Parent compares, and sowing is mixed when mature, and the standard for being selected in single plant is the ripe phase between two parents, other characters are the same as conventional
Breeding；
(4) by the last year mixed F received3Seed plants F in Dandong4In generation, plants 200-300 plants of single plant quantity, same plantation two
Parent compares, and sowing is mixed when mature, and the standard for being selected in single plant is the ripe phase between two parents, other characters are the same as conventional
Breeding；
(5) by the last year mixed F received4Seed plants F in Yancheng, Jiangsu Province5In generation, plants 200-300 plants of single plant quantity, same plantation two
Parent compares, and fine individual plant seed is selected when mature, and each single plant is individually numbered, and the standard for being selected in single plant is the ripe phase between two
Between a parent, the same conventional breeding of other characters；
(6) F for harvesting last year5Single-strain seed plants F in Yancheng, Jiangsu Province plantation strain identification garden6In generation, equally plants two parents
It compares, heading stage carries out bacterial leaf-blight and panicle blast resistance inoculated identification respectively, and the standard for being selected in strain or single plant is the ripe phase
Between two parents, the same conventional breeding of other characters, when character stable strain maturation, mixed sowing entered next year product
It is variety comparative test；
(7) F that character upper one year is stable6Enter variety comparative test for the mixed seed received in strain identification garden, carries out the ripe phase, yield, resists
Property, quality, adaptability character screening compare, select yield with compare that Xu rice No. 3 is suitable or the underproduction are no more than 3%；The index of quality
Up to national standard second level superior rice standard, anti-middle bacterial blight-resisting, sick grade 0-3 grades；Anti- middle sense panicle blast, panicle blast disease incidence and fringe
The sick grade of neck pest loss index is 0-5 grades, F7It is bred as in Huaibei district of Jiangsu province's Planted than control No. 3 precocity 7-8 of Xu rice
It, yield, resistance, the index of quality meet the precocious japonica rice new varieties of rice varieties approving standard above the provincial level；
Other described characters are F with conventional breeding2To F5It selects plant type compacter for per generation and compares Xu rice No. 3 quite, bud scales
Green, than compareing No. 3 short 3-5cm of Xu rice, leaf number of the main culm 17-18 leaf and all indexs of rice quality reach national standard second level
The single plant of superior rice standard, F5In generation, also selects anti-middle bacterial blight-resisting, and sick grade 0-3 grades；Anti- middle sense rice blast, panicle blast morbidity
Rate and the sick grade of panicle blast loss index are 0-5 grades；
It is bred as precocious japonica rice new varieties to name as " salt rice 200 ", which plants more early than control Xu rice No. 3 in Huaibei district of Jiangsu province
It is ripe 7 days, late-maturing 12 days richer by 47 than control salt；Rice shoot is short strong, and bud scale green, leaf sheath light green, blade is tall and straight, and plant type is compacter,
Plant height is than compareing No. 3 short 3-5cm of Xu rice, and leaf number of the main culm 17-18 leaf, 5 elongation internodes, stooling is stronger, the average percentage of earbearing tiller
68.6%, the effective fringe 22.1 ten thousand of mu, every total grain panicle 130, every fringe reality grain 125, setting percentage 95%, 26.1 grams of mass of 1000 kernel, no awns,
All indexs of rice quality reach the above superior rice standard of national standard second level, middle bacterial blight-resisting, 3 grades of sick grade；In anti-panicle blast, fringe
2 grades of neck pest disease incidence.
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| CN101019505A (en) * | 2007-03-22 | 2007-08-22 | 江苏丘陵地区镇江农业科学研究所 | Breeding process of rice blast-resisting high quality and high yield round-grained rice variety Zhendao-10 |
| CN101663992A (en) * | 2009-06-23 | 2010-03-10 | 江苏沿海地区农业科学研究所 | Cultivation method of high-grain weight excellent-quality ternary hybrid rice variety |
| CN102177843A (en) * | 2011-03-16 | 2011-09-14 | 江苏沿海地区农业科学研究所 | Method for culturing high-quality disease-resistance mid-maturity medium keng rice |
| CN103262788A (en) * | 2013-05-31 | 2013-08-28 | 江苏沿海地区农业科学研究所 | Rapid breeding method for salt-tolerance rice variety |
| 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 |
| CN103461110A (en) * | 2013-09-27 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Method for breeding new variety of rice |
| CN105052726A (en) * | 2015-07-28 | 2015-11-18 | 江苏（武进）水稻研究所 | Method for breeding high-yield japonica rice species capable of efficiently preventing rice blast |
| CN105613255B (en) * | 2015-12-25 | 2017-12-26 | 江苏省农业科学院 | A kind of pyramiding breeding method of excellent flavour, anti-rice blast rice kind |
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2017
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