CN101524048B - Dry field high yield and high quality winter wheat new variety selective breeding technology - Google Patents
Dry field high yield and high quality winter wheat new variety selective breeding technology Download PDFInfo
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- CN101524048B CN101524048B CN2009101278210A CN200910127821A CN101524048B CN 101524048 B CN101524048 B CN 101524048B CN 2009101278210 A CN2009101278210 A CN 2009101278210A CN 200910127821 A CN200910127821 A CN 200910127821A CN 101524048 B CN101524048 B CN 101524048B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/13—Abiotic stress
- Y02A40/132—Plants tolerant to drought
Abstract
The invention relates to a dry field high yield and high quality winter wheat new variety selective breeding technology which has the main selective breeding process: special germplasm resources, introduction-parent selection-winter-spring wheat sexual hybridization-excellent single plant group mass selection-stable strain identification-high generation strain production measurement-breeding strain identification-breeding strain comparative experiment-regional test-production test, etc. The technology is characterized in that in the hybridization segregative generation, the strains are planted in a mixed way according to the type combination and selected according to different types; when the isozygoty rate of the hybrid progeny is estimated to reach over 80% that is about F5-F7, the strains are began to select, and the next generation becomes a system; then, the good systems are selected to be in upgrading experiment. Therefore, in the hybridization group, various good genes are saved and recombined to be good homozygotes in the generation afterwards; ridge I cultivated by using the invention has the characteristics of remarkable yielding ability, strong drought resistance and winter hardiness, high volume weight, good nutritional quality, excellent comprehensive economical character, wide application scope, better disease resistance, etc.
Description
Technical field
The present invention relates to the new crop varieties breeding technique, is a kind of dry field high yield and high quality winter wheat new variety selective breeding technology specifically
Background technology
Traditional New Winter Wheat Variety breeding technique mainly adopts " pedigree method ", and plant is selected in the seed selection process, the plant plantation, workload is bigger, spended time is long, tend to Lou select and falsely drop a lot of materials, in select rate low.Special in the special natural production condition of Middle Gansu Province; Cause wheat yield unstable like disease, kind shortage factors etc. such as low temperature freezing-disaster, short of rain, the yellow rust of arid, the practical problem that grain yield is difficult to improve is badly in need of a kind of individuality of keeping more diversification in styles and having high yield potential of needing; There is more opportunity to choose the good system of high yield, proterties and to preserve more eurypalynous plant individual; Accelerate breeding process, improve efficiency of selection, the breeding technique of shortening the breeding cycle.
Summary of the invention
The object of the present invention is to provide a kind of more diversification in styles and individuality of keeping with high yield potential; There is more opportunity to choose the good system of high yield, proterties and to preserve more eurypalynous plant individual; Accelerate breeding process; Improving efficiency of selection, the dry field high yield and high quality winter wheat new variety selective breeding technology of shortening the breeding cycle---the technology of selecting is mixed by group.
The present invention is achieved through following technical proposals: a kind of dry field high yield and high quality winter wheat new variety selective breeding technology; This technology adopts the shuttle back and forth method of associating seed selection of strange land; Main seed selection flow process is: special-purpose germ plasm resource collection, introduction → parental apolegamy → Winter-Spring wheat sexual hybridization → elite seedling group mix selection → stable strain evaluation → height and survey product → strain evaluation → variety test of lines → regional test → production test etc. for strain, wherein:
A) parental apolegamy:, the excellent 84WR (21)-4 of stripe rust resisting outstanding with the strange yielding ability of introducing of native ear is female parent, and Lip river 8912 is a male parent, through No. 1 New Winter Wheat Variety in Winter-Spring wheat sexual hybridization configuration Gansu Province.
B) elite seedling group mixing system of selection is:
(1) hybrid F1 generation: the combination that a selective advantage is outstanding, not menu strain; The hybridization mode generally adopts biparental cross, many male parents pollination hybridization, three kinds of modes of distant hybridization;
(2) in hybrid F2 generation: in F2 generation, begin the combination of confirming that advantage is outstanding, in outstanding combination, selects the crowd of system by dissimilar heap sorts; Mainly select in conjunction with local natural conditions; Overall merit is selected between several of disease resistance, drought resistance, yielding ability and the plant heights etc., divides type to select the crowd of system, divides combination classification type numbering; The crowd of system threshing, each is that mass selection is selected the 3000-6000 strain;
(3) in hybrid F3-F4 generation: emphasis carries out individual plant and the strain system is selected, and secondly the dissimilar elite plant strain of multiselect in outstanding combination therefrom selects fine individual plant in the roguing system again, and the individual plant total amount reaches the 4000-6000 strain, divides the threshing of type numbering; When selected plant was, more than the plant height 100cm, the seedling habit was crawled, and well developed root system, 14 of spikelet numbers, grain number per spike be more than 35, and blade is narrow and long cured matter arranged, and strain shape is compact, precocity, drought resistance 2-3 level, high stripe rust resisting; Also to keep more diversification in styles and have the yield potential individuality;
(4) F5-F7 carries out the crowd of system of branch combination selected plant system for emphasis, and each is group 6000-8000 strain, divides the threshing of type numbering; From being that select confirming outstanding the crowd is crowd's upgrading, select then high survey to produce for stable strain identify.
The present invention selects compared with techniques that following advantage is arranged with tradition:
(1) the invention is characterized in: in the hybridization segregative generation; Combined hybrid plantation by type divides dissimilar selections, up to estimating that hybrid generation's rate of isozygotying reaches 80% when above; Promptly about F5-F7; Just begin selected plant system, the next generation becomes system, selects good system to get into the upgrading test then; Therefore in hybridization colony, preserve various excellent genes, and reassemble into good homozygote in the generation afterwards, use the present invention and can make hybrid population stand natural selection, colony's proterties is developed to the direction that is adapted to local natural conditions and cultivation condition.If with traditional pedigree method select technology at F2 for just beginning to select individual plant, the filial generation percentage that isozygotys to be merely 0.1-72.83%, efficient is very low, and can lose a large amount of excellent genes; And on kind of method for planting, traditional pedigree method adopts the plant plantation, and plant is gathered in the crops respectively, the mode of threshing, makes workload big, and spended time is long.And the present invention adopts the dissimilar selections of branch, divides dissimilar plantations, numbers by dissimilar threshings; And the present invention is in the breeding of new variety process, adopts group to mix and selects technology, carries out the shuttle back and forth breeding technique of associating tackling key problem of strange land, north and south, and innovation having formed many new private resources and breeding intermediate materials.
(2) can accelerate breeding process, shortening the breeding cycle.For stable, the breeding time limit only needs 7 years at F7 in the present invention, and conventional art F11 is for stable; The time limit will reach 11 years, and both are this 4 years technological shortening the breeding cycles relatively, and is annual by 100 calculating on working days; Can save 400 of working days in 4 years; This has not only saved human and material resources, and spended time is few, and improved variety speed is fast.
(3) can keep more diversification in styles and individuality with high yield potential, have more opportunity to choose the good system of high yield, proterties and to preserve more plant individual, each is that the crowd generally can preserve the 6000-8000 strain.
Selected in New Winter Wheat Variety Gansu Province No. 1 through using this technology for many years, in December, 2007 in second national crop varietal approval committee of the Ministry of Agriculture named to Gansu Province No. 1, authorization numbering " state examines wheat 2007023 ".This kind has following outstanding feature:
(1) yielding ability is outstanding: this kind is through 2005,2006 2 years 22 times winter wheat district, national northern nonirrigated farmland examinations; 302.65 kilograms of average yield per mus; Than 274.45 kilograms of raising the output 10.28% of long 6878 average yield per mus of unified contrast, raising the output reaches utmost point significance level, occupies first of test.
(2) drought resistance is strong: in great drought in 1999,2002,2003,2,007 four, and 233.5 kilograms of raising the output 16.5% of yield level.2 years national nonirrigated farmlands of 2005-2006 group Henan academy of agricultural sciences, Luoyang drought resisting qualification result: 3 grades of drought resisting ranks, drought resisting index 1.0598-1.0692 is under different ecological condition; Environmental modification coefficient average is minimum; Suffer from drought plant height under the situation, thousand kernel weight of this kind changes lessly relatively, and anti-blue or green to do power strong, ripe lover; Early stage, special drought resisting was the medium nonirrigated farmland kind of drought resistance.
(3) cold resistance is strong: unit cold resistance qualification result is specified in 2005-2006 country's district's examination in 2 years: portion's freeze injury is 1 grade on the ground, the dead plant rate 4.0%/10.5% of surviving the winter, and the dead stem rate 4.8%/14.0% of surviving the winter, cold resistance reaches 2 grades, and cold resistance is better.
(4) unit weight is high, and nutritional quality is good: detect test center (Beijing) assays through 2005,2006 annual Ministry of Agriculture grain qualities: No. 1 unit weight 810/817 grams per liter, protein content (butt) 14.05/14.23% in Gansu Province, lysine (butt) 0.46%; Wet gluten (butt) 30.9%/32.4%, ash content 1.58%, sedimentation value mL28.8/30; Moisture 9.67%, water absorption rate 61/61.2%, 2.8/3.6 minute stabilization time; Extensibility 136mm, extension area 16/32cm
2, the maximum anti-resistance 98/161EU that prolongs.The Chinese Academy of Agricultural Sciences's biotechnology center glutenin subunit analysis result in 2007: contain glutenin high quality subunit 7+8,5+12 No. 1 in Gansu Province.
(5) the comprehensive agronomy proterties is excellent: belong to strong winter habit, mid-early maturity, seedling habit in Gansu Province for No. 1 and crawl, dark green leaf color, seedling growth are vigorous, well developed root system; Tillering ability is strong, and effective tiller 3-5, the percentage of earbearing tiller is up to 60.5%; 264/273 day breeding time, plant height 87cm, strain shape is compact; Appearance is delicate and pretty, and maturation falls yellow good.Spike length is square, white shell, and long awns, the fringe layer is neat, 14 in solid small ear; 28/31.8 of grain number per spike, fringe grain weigh 2.3 grams, thousand kernel weight 40.0/44.8 gram, and three factors are comparatively coordinated; Seed is red, and is avette, cutin, and grain plumpness is good; Yielding ability and good stability through evidence for many years, increase production extremely significantly, are the excellent kinds of a high yield, comprehensive agronomy proterties.
(6) wide accommodation: dry year takes place 4 years in No. 1 seed selection process in Gansu Province; Though test still field demonstration all to show the output luffing period little, plant height, thousand kernel weight change little relatively, the northern regional test environmental modification coefficient analysis in the whole nation: first in this strain output residence; The minimum CV21.709% of average in 10 kinds of environmental modification coefficient analysis; Good static stability is explained wide adaptability, is the successful high yield nonirrigated farmland winter wheat of the Middle Gansu Province Winter-Spring unique seed selection in the excessive area of wheat
(7) disease resistance is strong: this kind is very popular period in the annual 3 years yellow rust of 2002-2004; Stood the test of Gansu Province's big generation of yellow rust for the third time in 2002, and in Gansu Province No. 1 be 5-30% at field performance response type 1-2 type, severity, generally rate is 30-60%; Uninfluenced to thousand kernel weight, output; Thousand kernel weight still reaches the 40.0-44.8 gram, the integrated production capacity level of lasting anti-bar rust, the anti-standard of anti--Gao in reaching.
The Chinese Academy of Agricultural Sciences of unit Institute of Plant Protection's disease resistance qualification result is specified in 2005-2006 country district examination: anti-in No. 1 in Gansu Province to middle sense yellow rust, middle sense leaf rust, in anti-to middle sense powdery mildew, middle resistance to yellow dwarf.Through academy of agricultural sciences, Gansu quality guarantee institute anti-bar rust qualification result: this kind seedling stage to Mixed Microbes, become the strain phase to bar in the equal anti-level in the performance of No. 29, water 7, water 4, water 14, No. 31, No. 32.Anti-in this kind aggregate performance.
No. 1 cultivation requires in crossbreed Gansu Province:
(1) optimum period, an amount of sowing: these article tie up to be distinguished late September (before and after the Autumnal Equinox) sowing aptly and is advisable, mu 30-33 ten thousand strains of keeping a full stand of seedings, and the mu amount of broadcasting 15.0-17.5 kilogram, because this strain tillering ability is strong, the amount of broadcasting is unsuitable excessive; Planting patterns: 1.5 meters long going up of row are planted 130,22 centimetres of line-spacings.
(2) rational application of fertilizer, perform seed treatment: basked seeds before broadcasting 1-2 days, with seed dressing frost and seed coating medicine seed dressing, after per 100 kilograms of seeds were converted 2 kilograms of seed dressings of water with 0.2 kilogram of seed dressing frost, the heap illiteracy was sowed in 12 hours; The agent of 1 kilogram of kind clothing can be mixed 20 kilograms of seeds (generally not at Jia Shui), stirs dressing repeatedly, and every the surface of the seed is appeared till the pink, and heap was spread out airing 6-8 hour then, and seed seed to adhesion can be sowed.
(3) enhance field management: survive the winter winter wheat, the middle and later periods management principle is after the winter: getting into the phase of surviving the winter should weed with a hoe early, holds soil moisture with the guarantor; In the phase of standing up, booting stage, timely prevention and elimination of disease and pests at heading stage, the red yellow dwarf communication media of wheat is cut off in 1000 times of spraying controls of available 40% dimethoate emulsifiable concentrate or 20% Isofenphos methyl missible oil, reduces and contaminates.
Embodiment:
A kind of dry field high yield and high quality winter wheat new variety selective breeding technology; This technology adopts the shuttle back and forth method of associating seed selection of strange land; Its main seed selection flow process is: special-purpose germ plasm resource collection, introduction → parental apolegamy → Winter-Spring wheat sexual hybridization → elite seedling group mix selection → stable strain evaluation → height and survey product → strain evaluation → variety test of lines → regional test → production test etc. for strain, wherein:
A) parental apolegamy:, the excellent 84WR (21)-4 of stripe rust resisting outstanding with the strange yielding ability of introducing of native ear is female parent, and Lip river 8912 is a male parent, through No. 1 new variety of wheat in Winter-Spring wheat sexual hybridization configuration Gansu Province.This is a principle with the breeding objective for parents, selects the native breed and the breeding intermediate materials that adapt to local working condition for use, carries out reasonable assembly, could improve breeding efficiency.
B) elite seedling group mixing system of selection is:
(1) hybrid F1 generation: the combination that a selective advantage is outstanding, not menu strain; With the breeding objective is purpose, and the hybridization mode generally adopts biparental cross, many male parents pollination hybridization, three kinds of modes of distant hybridization.The biparental cross principle: apolegamy is maternal with disease-resistant, early-maturing variety during as female parent, and role is big improving on disease resistance, the premature ripening.Be that parent strong with local condition adaptability, that economical character is good makes female parent traditionally, and hybridize as male parent with parent with some outstanding complementary proterties; Many male parent pollination hybridization principles: the kind so that the comprehensive agronomy proterties is outstanding is done female parent; The kind outstanding with disease resistance is first male parent; The three friendship forms that second, third male parent is given prominence to precocity, high yield, quality; Complementary pluses and minuses are perhaps hybridized with F2 generation, breeding intermediate materials, create more type offspring; Distant hybridization: distant hybridization can create newtype and new species, enriches breeding material energetically: the one, and common hybridization, wheat and rye, wheat and durum wheat, Winter-spring wheat hybridization; The 2nd, to use the foreign DNA leading-in technique and carry out distant hybridization, its purpose improves disease resistance, can also change proterties, the comprehensive valuable economically proterties of parents.Improving in varying degrees at aspects such as yielding ability, prematurity, disease resistance, drought resistance, adaptability, qualities.
(2) in hybrid F2 generation: in F2 generation, begin the combination of confirming that advantage is outstanding, in outstanding combination, selects the crowd of system by dissimilar heap sorts; Mainly select in conjunction with local natural conditions; Overall merit is selected between several of disease resistance, drought resistance, yielding ability and the plant heights etc., divides type to select the crowd of system, divides combination classification type numbering; The crowd of system threshing, each is that mass selection is selected the 3000-6000 strain;
(3) in hybrid F3-F4 generation: the system that emphasis carries out individual plant and strain system is selected, and secondly the dissimilar elite plant strain of multiselect in outstanding combination therefrom selects fine individual plant in the roguing system again, and the individual plant total amount reaches the 4000-6000 strain, divides the threshing of type numbering; When selected plant was, more than the plant height 100cm, the seedling habit was crawled, and well developed root system, 14 of spikelet numbers, grain number per spike be more than 35, and blade is narrow and long cured matter arranged, and strain shape is compact, precocity, drought resistance 2-3 level, high stripe rust resisting; Also to keep more diversification in styles and have the yield potential individuality, select more high yield, the good system upgrade of proterties.
(4) F5-F7 carries out the crowd of system of branch combination selected plant system for emphasis, and each is group 6000-8000 strain, divides the threshing of type numbering; From being that select confirming outstanding the crowd is crowd's upgrading, select then high survey to produce for stable strain identify.
C) stable strain is identified: emphasis is identified yielding ability, plant height, seedling habit, root system, spikelet number, grain number per spike, blade, strain shape,, prematurity, drought resistance, yellow rust, fringe grain heavily wait the comprehensive agronomy proterties.
D) the high survey for strain produced: survey quality, survey output.
E) strain is identified: be that the stable strain of crowd is identified to what be that crowd's upgrading selects mainly; Some proterties such as emphasis identification traits stability, output performance and breeding objective requirement; Expanding propagation grain weight when advantage is outstanding; The evaluation of survey product, strain relatively reach numerous kind carries out synchronously, sub-district area 10-15 square metre, meets 10 to establish contrast.
F) strain relatively: be the comprehensive comparative evaluation of the stable strain of crowd to what select mainly, select the high yield, stable yields, high-quality, the low consumed new lines that significantly are superior to existing recommended variety, so that further participate in regional test; Understand the performance of each developmental stage simultaneously, the pluses and minuses of each strain of overall merit are selected 1-2 the excellent strain participation article that meet breeding objective and surpass check variety raising the output 15% than 2-3, and the participation regional test is provided.
G) regional test: main proof has higher adaptability and yielding ability, can surpass existing cultivar in output or some proterties; Find out each strain simultaneously culture technique is reached the adaptation characteristics to various ecological conditions, generally participate in regional test 2-3, comparison is laid a solid foundation for production test is provided according to more than the raising the output 3-5% in regional test.
H) production test: mainly comprise production test, experiment in cultivation, multiple spot test, ecological test:
(1) production test crop growth environment and land for growing field crops working condition are incomplete same, and emphasis is measured yield level, the integrated production capacity of strain in the different ecological zone.Each kind area is no less than 1 mu, generally participates in raising the output in a year more than 5%, recommends country to name.
(2) experiment in cultivation is formulated cultivation features such as corresponding density, date of seeding, Fertilization Level, management according to the strain characteristics.
(3) multiple spot test overall understanding article tie up to the yield response under the different working conditions, help the correct strain of selecting and estimate; Play the effect of multiple spot test; The adaptation zone of desk study strain; It also is the reproductive process that enlarges seed; Confirm suitable promoting region; Help improving constantly breeding level.
(4) ecological test in drought condition, high-level condition etc., is measured the ecologic adaptation scope in order to identify the ecological response of new lines under different ecological condition, clearly utilizes characteristics.
Claims (1)
1. dry field high yield and high quality winter wheat new variety selective breeding method; It is characterized in that: this method adopts the shuttle back and forth method of associating seed selection of strange land; Main seed selection flow process is: special-purpose germ plasm resource collection, introduction → parental apolegamy → Winter-Spring wheat sexual hybridization → elite seedling group mix selection → stable strain evaluation → height and survey product → strain evaluation → variety test of lines → regional test → production test for strain, wherein:
A) parental apolegamy:, the excellent 84WR (21)-4 of stripe rust resisting outstanding with the strange yielding ability of introducing of native ear is female parent, and Lip river 8912 is a male parent, through No. 1 New Winter Wheat Variety in Winter-Spring wheat sexual hybridization configuration Gansu Province;
B) elite seedling group mixing system of selection is:
(1) hybrid F1 generation: the combination that a selective advantage is outstanding, not menu strain; The hybridization mode adopts biparental cross, many male parents pollination hybridization, three kinds of modes of distant hybridization;
(2) in hybrid F2 generation: in F2 generation, begin the combination of confirming that advantage is outstanding, in outstanding combination, selects the crowd of system by dissimilar heap sorts; Mainly select in conjunction with local natural conditions; Overall merit is selected between several of disease resistance, drought resistance, yielding ability and the plant heights, divides type to select the crowd of system, divides combination classification type numbering; The crowd of system threshing, each is that mass selection is selected the 3000-6000 strain;
(3) in hybrid F3-F4 generation: the system that emphasis carries out individual plant and strain system is selected, and secondly the dissimilar elite plant strain of multiselect in outstanding combination therefrom selects fine individual plant in the roguing system again, and the individual plant total amount reaches the 4000-6000 strain, divides the threshing of type numbering; When selected plant was, more than the plant height 100cm, the seedling habit was crawled, and well developed root system, 14 of spikelet numbers, grain number per spike be more than 35, and blade is narrow and long cured matter arranged, and strain shape is compact, precocity, drought resistance 2-3 level, high stripe rust resisting; Also to keep more diversification in styles and have the yield potential individuality;
(4) F5-F7 carries out the crowd of system of branch combination selected plant system for emphasis, and each is group 6000-8000 strain, divides the threshing of type numbering; From being that select confirming outstanding the crowd is crowd's upgrading, select then high survey to produce for stable strain identify;
C) stable strain is identified: emphasis is identified yielding ability, plant height, seedling habit, root system, spikelet number, grain number per spike, blade, strain shape,, prematurity, drought resistance, yellow rust, the heavy comprehensive agronomy proterties of fringe grain;
D) the high survey for strain produced: survey quality, survey output;
E) strain is identified: be that group strain is identified mainly to what be that crowd's upgrading selects, emphasis identification traits stability, output performance, when advantage is outstanding expanding propagation survey produce, strain relatively reaches numerous kind and carries out synchronously;
F) strain relatively: be the comprehensive comparative evaluation of the stable strain of crowd to what select mainly; Select the high yield, high-quality, the low consumed new lines that significantly are superior to existing recommended variety; Understand the performance of each developmental stage simultaneously; The overall merit pluses and minuses are selected 1-2 excellent strain that meets breeding objective and surpass check variety raising the output 15%;
G) regional test: main proof has higher adaptability and yielding ability, can surpass existing cultivar in output or some proterties; Find out each strain simultaneously culture technique is reached the adaptation characteristics to various ecological conditions, comparison is according to more than the kind raising the output 3-5% in regional test;
H) production test: mainly comprise production test, experiment in cultivation, multiple spot test, ecological test:
(1) production test is measured yield level, the integrated production capacity of strain in the different ecological zone;
(2) experiment in cultivation is formulated corresponding density, date of seeding, Fertilization Level, management and cultivation characteristics according to the strain characteristics;
(3) multiple spot test overall understanding article tie up to the yield response under the different working conditions, the adaptation zone of desk study strain; It also is the reproductive process that enlarges seed;
(4) ecological test in drought condition, high-level condition, is measured the ecologic adaptation scope in order to identify the ecological response of new lines under different ecological condition, clearly utilizes characteristics.
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| CN108377906A (en) * | 2018-03-22 | 2018-08-10 | 河北省农林科学院旱作农业研究所 | A kind of water-saving high-quality New Winter Wheat Variety selection of extremely early mature |
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| CN102334448A (en) * | 2010-07-23 | 2012-02-01 | 沈天民 | Factory breeding method of wheat |
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| CN104351042B (en) * | 2014-10-13 | 2016-05-25 | 江苏省农业科学院 | A kind of breeding method of weak muscle wheat |
| CN105230472B (en) * | 2015-08-24 | 2018-03-06 | 梅河口吉洋种业有限责任公司 | The foundation of northern spring wheat dominant population |
| CN105638260A (en) * | 2015-12-28 | 2016-06-08 | 钱兆国 | Wheat selection method mainly targeting on ear number and grain weight on basis of one stability factor and two targeting factors |
| CN107047286B (en) * | 2017-04-20 | 2019-04-09 | 周口师范学院 | A kind of method of wheat crossbreeding |
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| CN110089421B (en) * | 2019-05-29 | 2022-02-18 | 河北省农林科学院旱作农业研究所 | Method for selecting and breeding wheat filial generation |
| CN114916390B (en) * | 2022-05-19 | 2024-03-08 | 邯郸市农业科学院 | Breeding method for improving adaptability of wheat in seedling stage |
| CN115152624A (en) * | 2022-08-08 | 2022-10-11 | 石家庄市农林科学研究院 | Rapid breeding method for new stress-resistant high-yield winter wheat variety |
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| CN108377906A (en) * | 2018-03-22 | 2018-08-10 | 河北省农林科学院旱作农业研究所 | A kind of water-saving high-quality New Winter Wheat Variety selection of extremely early mature |
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