CN1930950A - Breeding process of fruit-vegetable type sweet glutinous hybrid corn - Google Patents
Breeding process of fruit-vegetable type sweet glutinous hybrid corn Download PDFInfo
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Abstract
The breeding process of fruit-vegetable type sweet glutinous hybrid corn includes the following steps: 1. setting up the breeding indexes of fruit-vegetable type sweet glutinous hybrid corn; 2. selectively breeding the basic material for breeding the sweet glutinous hybrid corn variety; 3. back crossing to transfer the glutinous gene of glutinous corn to common corn self-bred line to increase the panicle length and raise the resistance, transferring sweet gene of sweet corn to common corn self-bred line to increase the sweetness, and bagging self-breeding to breed sweet glutinous corn self-bred line; and 4. tissue mating sweet glutinous hybrid corn variety. The selectively bred fruit-vegetable type sweet glutinous hybrid corn variety has the features of high yield, high resistance, short growth period, powerful adaptability, good appearance, immediate sugar content, good taste, high nutritious quality, etc.
Description
Technical field the present invention relates to a kind of hybrid maize breeding method, and particularly a kind of breeding process of fruit-vegetable type sweet glutinous hybrid corn belongs to new variety of plant seed selection and heterosis utilization technical field.
Background technology fruits and vegetables corn means the corn that is made for vegetables, fruit and processing canned food, claims special with corn or fresh edible maize again.It is nutritious that high-quality is eaten sweet-waxy maizes raw, and amino acid that human body is necessary and protein, sugar and multivitamin all are higher than conventional corn, the sugariness height, and glutinous property is strong, and edible quality is good, unique flavor.Fragrant, sweet, glutinous, sticking, soft, tender, good palatability after the boiling, the moss food has the local flavor of grain, fruits and vegetables concurrently, is easy to digest and assimilate, and the old and the young are all easy.
The fruit-vegetable type sweet waxy corn is mainly done vacuum-packed processing quick-frozen of fresh fruit fringe or directly listing, and can give birth to can be ripe.Therefore, whether good the food flavor of fruit ear and appearance character, color, quality are this corn variety of decision key factors.China corn main producing region produces this corn of exploitation to adjusting China's subtropics plantation industry structure, increases farmers' income, and flourish the market economy is significant.The fruits and vegetables corn still is important export-oriented commodity, and except that the U.S., other countries' fruits and vegetables Maize Production and converted products thereof are very few in the world, and the demand of Europe and south east asia enlarges day by day, and development fruits and vegetables corn and converted products thereof have wide, market.Therefore, the fruit-vegetable type corn variety of suitable each the corn ecotope plantation of seed selection is significant.
Shandong Province's corn is eaten industry raw and is started late at home, and the peasant is many to tuck in single No. 4 hybrid maize kinds as the plantation object than short breeding time, though quality is good, sweetless, not glutinous than other corn kinds, mouthfeel is poor.Enter the Laizhou introduction nineties " bright No. 1 of Tianjin " fresh edible maize and promote, just on breeding time, shorten to some extent, but not raising of quality.Because good kind lacks, its plantation all be to draw kind outward, do not fit into local ecotope, meet disadvantageous climatic factor, often bring about great losses.Simultaneously, be subjected to nonlocal grain weight and expensive price limit, do not have the corresponding cultivation techniques of good quality and high output in addition, it is low that its product is processed fringe rate up to standard, limited the further expansion of cultivated area.Along with the storing and fresh-keeping technology of fresh edible maize and the raising of process technology, be that processing enterprise's scale of raw material enlarges rapidly with the fresh edible maize, quantity increases sharply, and market is more and more big to the demand of fresh edible maize.
Summary of the invention the object of the present invention is to provide a kind of breeding process of fruit-vegetable type sweet glutinous hybrid corn, start with from the basic material of selecting breeding, by backcross improvement, screening merit, bagging selfing, select good inbred line, hybridize assembly, combining ability test, kind then relatively, carry out annidation evaluation, attributional analysis, resistance evaluation, participate in regional test, production test and demonstration, pass through variety certification at last.
In order to realize above-mentioned task, the present invention by extensive collection source different ecological environment, have the sweet-waxy maizes breeding basic material of merit; Use the basic theories of modern genetics and related discipline, adopt the technical method of advanced and integrality to be improved utilization, select the sweet-waxy maizes inbred line of coordinate force height, wide adaptability; According to fruit ear output structure and comprehensive proterties, the good combinations of comprehensive agronomy proterties such as assembly output, quality, resistance, the glutinous property that is intended to further strengthen sweet-waxy maizes, the plumpness of increase seed prolongs bright fringe collecting time.
The following technical measures of main employing:
1, formulates fruit-vegetable type sweet glutinous maize breeding
Formulating correct breeding objective is the breeding key of success, the fruit-vegetable type sweet waxy corn mainly is to eat needs raw, total target is high-quality, high yield, how anti-, and the sweet-waxy maizes quality comprises edible quality, exterior quality and marketing quality, and is wherein important with food quality especially.
Concrete index mainly comprises soluble sugar content 15-20%, pericarp thickness≤0.2mm (skin thin), good palatability (sharp and clear, mouthfeel good), (the fruit ear size evenly for the fruit ear proterties, head progeny row 14-16 is capable, fringe is slightly more than 4.5cm, head progeny row seed marshalling, grain white, cob white, the processing of the long tubular section of helping of fruit ear shape fruit ear); Annidation is good, and is degeneration-resistant, anti-, disease and insect resistance; Fruit ear commodity rate and edible rate height, large tracts of land are produced bright fringe 5250-6000 fringe/hm
2, the comprehensive agronomy proterties good (the breeding time mid-early maturity is emerged to milking maturity and is gathered required fate at 75-90d, about plant height 230cm, the high 80-90cm in fringe position, bract is long and do not reveal point, bald length＜2cm.
2, use the heterosis, hybrid vigor theory, screen good waxy corn crossbreeding germplasm materials.
Draw outside in many waxy corn materials, according to separate sources and affiliation and high anti-, high-combining ability conventional corn inbred line 478 hybridization.The result shows that white glutinous X * 478 heterosis, hybrid vigors are obvious, and output height, product are of fine quality, better resistance, wide adaptability.Select the individual plant bagging selfing of strain shape compactness, fruit ear length, bract length, not bald point, head progeny row marshalling in the colony in hybridization, through 6 generation the bagging selfed breeding go out white glutinous-2.
Glutinous in vain-2 about 37 ° of breeding times of north latitude (emerging-maturation) 95d, and about plant height 175cm, the leaf look dark green, the plant type compactness, the blade upper punch, about the 80cm of fringe position, the long cartridge type of fruit ear, about spike length 17cm, the thick 4.0cm of fringe, cob white, grain white, about 30 of tassel row numbers,, about thousand kernel weight 180g.The tassel branch is few, and male and female are coordinated, and well developed root system is resistant to lodging, fall folding, the little leaf spot of the Chinese People's Anti-Japanese Military and Political College.
3, with the saccharoid gene of super-sweet corn kind by hybridization and the method transformation of backcrossing in the waxy corn inbred line, seed selection sweet-waxy maizes inbred line.
The one, do maternal and waxy corn inbred line N3 hybridization with the sweet corn dulcification, wherein N3 is an inbred line of the local glutinous corn variety in Southwest China mountain area, economical character is good, breeding time precocity, plant type is open and flat, the leaf look dark green, resistance is better, lysine content high (0.41%), tassel row number 14 row, grain white, solids type, drought resisting is anti-, meets fruit-vegetable type glutinous corn breeding target; The super-sweet corn dulcification derives from abroad, this variety and quality is very good, plant is taller and bigger, resistance, adaptability is good, make hybridization of female parent with dulcification, with the saccharoid gene transformation of dulcification in waxy corn inbred line N3, purpose is to reduce the plant height of sweet corn, improves its resistance and lysine content, increases the glutinous property of sweet corn, the 2nd, the corn individual plant of selecting to have N3 tree characteristics in filial generation is made male parent, backcrossed for 3 generations with dulcification (recurrent parent), screening has N3 and the selfing of dulcification merit prosperity corn individual plant bagging in its backcross progeny, and the self progeny produces separation, select colony by enlarging, strengthen selection pressure, in continuous 4 generations, selected the selfing of corn individual plant bagging, and per generation keeps 35-40 elite plant strain, therefrom seed selection sweet-waxy maizes inbred line-HN712.This inbred line is about the breeding time of 37 ° of north latitude (emerging-maturation) 98d.Plant height is medium, and about 200cm, the leaf look dark green, and plant type is loose, about the 90cm of fringe position, the fruit ear pyramid type, about spike length 20cm, the thick 4.5cm of fringe, tassel row number 14-16 is capable, and several about 40 of row grain is about thousand kernel weight 140 grams, grain white, tassel branch is many, the pollen amount foot, male and female are coordinated, and reproductive output is medium, and this inbred line field performance is more resistant to lodging, fall folding, there are not large and small leaf spot and bacterial wilt, not early ageing, banded sclerotial blight is very light.
4, assembly super-sweet corn crossbreed
The sweet-waxy maizes crossbreed of assembly (white glutinous 2 * TN712) by kind relatively and the multiple spot annidation identify, participate in regional test, production test and demonstration, carry out the evaluation of attributional analysis and resistance, the result shows that comprehensive proterties is good, names the prince charming.XS044-2003 was numbered in authorization by Hunan Province's crop varietal approval committee in 2003; 2004 by the authorization of Guangxi, the Shandong variety certification committee, and the authorization numbering is respectively osmanthus and examines (jade) No. 2004008, Shandong kind are examined word [2004] No. 012.
1. output shows and economic benefit:
This combination calendar year 2001 variety comparative test per mu yield 580.3kg, have a try and test per mu yield 609.7kg in provinces and regions, Hunan in 2002, Shandong Province's regional test per mu yield 620kg in 2003, test comparison in 3 years is according to kind of an average volume increase 11.26%.The economic benefit of this kind does not lie in its output height, and the listing of bright fringe or bright fringe processing (vacuum-packed quick-frozen) competence exertion go out its true value.In a lot of rural areas the plastic mulching plantation is arranged all, rob aquatic foods (ripe) the food corn of season listing.Prince charming's plastic mulching plantation 3500-4000 strain/mu, by real commodity fringe 3000 fringes of receiving of mu, average price 1.20 yuan/fringe in market calculates, and about 3600.00 yuan of mu incomes are robbed the season listing again if further increase safeguard measure, and economic benefit also will improve.
2. adaptability: this kind 2003 (Xiang Tan, Changsha) and Xiang Xibei (ground such as the Land of Peach Blossoms, Cili, Huayuan) in Hunan Province Xiang Nan (Jiang Hua, Xinning), Hunan produce demonstration performance output height, of fine quality, the resistance of product.2004 in the Guangxi district (Guilin, the Zhong Mountain, Huan Jiang) and (Qingdao, Weifang, Jining, Zibo, Dezhou, Dongying, Yantai) and other places, Shandong Province plant experimentally and have outstanding performance, obviously be better than the sweet corn kind that local plantation is promoted at Guangxi district Zhongshan County large-scale demonstration especially.Therefore, each corn district plantation of the suitable whole nation of sweet glutinous prince charming.
3. economical character: moderate growth duration, emerge to bright fringe in 37 ° of spring sowing of north latitude and to gather about 85d, about plant height 230cm, about the high 90cm in fringe position, 20 of the complete stool numbers of blade.The long cartridge type of fruit ear, about bright spike length 20cm, about the thick 5cm of bright fringe, tassel row number 14-16 is capable.
4. resistance: inoculation is identified and annidation evaluation field investigation result according to resistance, show resistant to lodging, resistance to fold, the high Chinese People's Anti-Japanese Military and Political College, little leaf spot, head smut, smut, in anti-stem rot and banded sclerotial blight, the corn borer extent of injury is very light.、
5. quality: this kind cob white, grain white, marshalling, bald degree is little, and exterior quality is good.Picking time, nutritional quality was analyzed, bright tassel seed crude protein 12.87%, total reducing sugar 16.80%, amylopectin 98.65%, crude fat 5.64%, lysine 0.40%, the content of calcium, phosphorus, zinc, iron is also higher, it is few to eat the thin slag of skin raw, and mouthfeel is fragrant and sweet glutinous, and food flavor nutrition is various.
The present invention has the following advantages:
1. this inventive method is mainly made the purpose of processing of fresh fruit fringe or direct listing at the fruit-vegetable type sweet waxy corn, formulated the concrete breeding objective of fruit-vegetable type sweet waxy corn, use the hybrid vigour pattern theory, screen good super-sweet corn crossbreeding germplasm materials, instruct the selection and the evaluation of basic material with breeding objective, the seed selection of inbred line, the assembly of hybrid combination and kind relatively wait whole breeding process, shoot the arrow at the target, reach the effect of getting twice the result with half the effort, improved the efficient of sweet-waxy maizes breeding.
2. in waxy corn inbred line N3, its offspring carried out for 3 generations with dulcification and backcrosses this inventive method again with the saccharoid gene transformation of super-sweet corn kind dulcification, utilized the merit by the reservation sweet-waxy maizes of backcrossing; Its backcross progeny separates through the selfing of 6 generations to be selected, and good character gene is isozygotied, thereby selects coordinate force height, the comprehensive good sweet-waxy maizes inbred line HN712 of proterties.
3. because the output of waxy corn and resistance and adaptability are generally relatively poor, in the conventional corn inbred line, utilize the well developed root system of conventional corn material to increase lodging resistance the glutinous trait gene transformation of waxy corn, utilize the adaptability of resistance increase waxy corn, improve the output of waxy corn.This inventive method is utilized 478 hybridization of the white glutinous X inbred line of good waxy corn material and high anti-high-combining ability conventional corn inbred line, backcross transformation, select colony by enlarging, strengthen selection pressure, continuous 6 generations selfing separates to be selected, in per generation, keep 35-40 strain system, thereby select coordinate force height, the comprehensive good glutinous corn inbred line glutinous in vain-2 of proterties.
4. this inventive method is at the seed selection initial stage of inbred line, and emphasis is selected at higher proterties of heritability such as the food flavor of fruit ear, appearance character, color, comprehensive resistances, aspect resistance, mainly payes attention to the selection of anti-banded sclerotial blight and corn borer.
5. this inventive method is workable, helps instructing the sweet-waxy maizes breed breeding, and the variety and quality of using this method seed selection is good, and the damage by disease and insect comprehensive resistance is excellent, commodity fringe rate height, and the economic coefficient height, comparison is according to increase yield significantly.Both help increasing peasant income, given enterprise's synergy again, be subjected to liking of peasant and enterprise deeply.
Embodiment further specifies the present invention below in conjunction with embodiment.
1, formulates fruit-vegetable type sweet glutinous maize breeding, screen good sweet-waxy maizes crossbreed germplasm materials.
According to screening test to sweet-waxy maizes, tentatively formulated fruit-vegetable type sweet glutinous maize breeding, carried out repeatedly adjusting and revising through feedback in the experimental study afterwards of this target, total target is a high-quality, high yield, how anti-, the sweet-waxy maizes quality comprises edible quality, exterior quality and marketing quality, wherein important with edible quality especially, it mainly comprises soluble sugar content (milk ripe stage seed soluble polysaccharide WSP content is between 15-20%), pericarp thickness (skin is thin), good palatability is (sweet glutinous, sharp and clear, dry is good), it is straight that head progeny row is wanted, head progeny row 14-16 is capable, fringe is slightly more than 4.5cm, fruit ear is even, grain white, white cob, fruit ear are the long tubular section of helping shape fruit ear processing; Annidation is good, degeneration-resistant, anti-ly falls, disease and insect resistance; Yield stability is good, and large tracts of land is produced the bright fringe rate of commodity height; Mid-early maturity breeding time (emerge to milking maturity gather required fate) at 76-90d, high (80-90cm) is moderate for plant height of gathering (about 230cm) and fringe position, and bract is long and do not reveal point (bald length＜2cm, the comprehensive agronomy proterties is good.
2, use the heterosis, hybrid vigor theory, screen good waxy corn crossbreeding germplasm materials.
Draw outside in many waxy corn materials, according to the inbred line and high anti-, high-combining ability conventional corn inbred line 478 hybridization of separate sources and affiliation.The result shows that white glutinous X and 478 heterosis, hybrid vigors are obvious, and output height, product are of fine quality, better resistance, wide adaptability.Select the individual plant bagging selfing of strain shape compactness, fruit ear length, bract length, not bald point, head progeny row marshalling in the colony in hybridization, through 6 generation the bagging selfed breeding go out white glutinous-2.Glutinous in vain-2 about 37 ° of breeding times of north latitude (emerging-maturation) 95d, and about plant height 175cm, the leaf look dark green, the plant type compactness, the blade upper punch, about the 80cm of fringe position, the long cartridge type of fruit ear, about spike length 17cm, the thick 4.0cm of fringe, cob white, grain white, about 30 of tassel row numbers,, about thousand kernel weight 180g.The tassel branch is few, and male and female are coordinated, and well developed root system is resistant to lodging, fall folding, the Chinese People's Anti-Japanese Military and Political College, little leaf spot.
3, with the saccharoid gene of super-sweet corn kind by hybridization and the method transformation of backcrossing in the waxy corn inbred line, seed selection sweet-waxy maizes inbred line.
The one, do maternal and waxy corn inbred line N3 hybridization with corn variety (dulcification), wherein N3 is an inbred line of the local glutinous corn variety in Southwest China mountain area, economical character is good, breeding time precocity, plant type is open and flat, the leaf look dark green, resistance is better, lysine content high (0.41%), tassel row number 14 row, grain white, solids type, drought resisting is anti-, meets fruit-vegetable type sweet glutinous maize breeding; Super-sweet corn kind dulcification derives from abroad, this variety and quality is very good, plant is taller and bigger, resistance, adaptability is good, with adding heaven-made hybridization of female parent, will be in waxy corn inbred line N3 with the saccharoid gene transformation of sweet corn, purpose is to reduce the plant height of sweet corn, improves its resistance and lysine content, increases the glutinous property of sweet corn, the 2nd, the corn individual plant of selecting to have N3 tree characteristics in filial generation is made male parent, backcrossed for 3 generations with dulcification (recurrent parent), screening has N3 and the selfing of dulcification merit prosperity corn individual plant bagging in its backcross progeny, and the self progeny produces separation, select colony by enlarging, strengthen selection pressure, in continuous 4 generations, selected the selfing of corn individual plant bagging, and per generation keeps 35-40 elite plant strain, therefrom seed selection sweet-waxy maizes inbred line-HN712.This inbred line is about the breeding time of 37 ° of north latitude (emerging-maturation) 98d.Plant height is medium, and about 200cm, the leaf look dark green, plant type is loose, about the 90cm of fringe position, and the fruit ear pyramid type, about spike length 20cm, the thick 4.5cm of fringe, tassel row number 14-16 is capable, several about 40 of row grain, about thousand kernel weight 140 grams, grain white, tassel branch is many, the pollen amount foot, male and female are coordinated, and reproductive output is medium.The performance of this inbred line field is more resistant to lodging, fall folding, do not have large and small leaf spot and bacterial wilt, not early ageing, and banded sclerotial blight is very light.
4, assembly sweet-waxy maizes crossbreed, the sweet glutinous prince charming of seed selection.
Spring in 1998 is to the stable inbred line of above-mentioned proterties divide into groups phase mutual cross and combining ability test, select from fruit ear food flavor, exterior quality, comprehensive resistance and economical character, wherein glutinous in vain-2 and two of TN712 be that performance is more outstanding, and heterosis, hybrid vigor is more obvious.Spring in 1999, TN712 made male parent with glutinous-2 doing maternally in vain, and assembly hybrid combination is glutinous in vain-2 * TN712, and the spring in 2000 participated in combination and identifies, it is outstanding that this is combined in 28 combinations of participating in evaluation general performance, and bright fringe output is amounted to per mu yield 14250kg/hm
2(going bract) comparison is according to super sweet No. 2 volume increase 16.6% of golden phoenix.Calendar year 2001 in Xiang Tan, 6 points such as the Land of Peach Blossoms, Changsha carry out annidation and identify average bright fringe output 13874kg/hm
2, comparison occupies first according to the super sweet volume increase 17.2% of golden phoenix.
Check the gross protein value 12.87% of this kind through grain quality inspection center of the Ministry of Agriculture, thick content of starch 69.80%, total sugar content 16.8%, crude fat 5.64%, amylopectin 98.65%, lysine content 0.4%, the content of calcium, phosphorus, zinc, iron is also higher.
Named into the prince charming (variety certification numbering XS044-2003) by Hunan Province's crop varietal approval committee in 2003.The authorization numbering is respectively: (jade) examined No. 2004008 in osmanthus through Guangxi, the authorization of Shandong Province's variety certification committee in 2004, and the Shandong kind is examined word [2004] No. 012.
Claims (1)
1, a kind of breeding process of fruit-vegetable type sweet glutinous hybrid corn is characterized in that: comprise following breeding step:
A, the target of working out the fruit-vegetable type sweet glutinous corn breeding: the sweet-waxy maizes quality comprises that soluble sugar content is 15-20%, pericarp thickness 0.1～0.2mm, and it is straight that the fringe type is wanted, about spike length 20cm, head progeny row 14-16 is capable, about the thick 4.5cm of fringe, fruit ear is even, grain white, cob white, the long tubular of fruit ear, cane is sturdy, well developed root system, the little leaf spot of resistant to lodging, the high Chinese People's Anti-Japanese Military and Political College, and sowing in spring breeding time emerges to bright fringe gathered about 80 days, about plant height 230cm, the high 80-90cm of fringe, the long not bald point of bract;
B, the screening strong excellent integrated mode of sweet-waxy maizes and good germplasm materials: hand over the white glutinous colony of transformation by, high-combining ability conventional corn inbred line 478 4 anti-with height to the white glutinous X inbred line of introducing, select therefrom that plant type is compact, output is high, fruit ear is long, product are of fine quality, better resistance, the individual plant of wide adaptability is as the breeding material of fruit-vegetable type sweet waxy corn, carry out 6 generation selfed breeding, select white glutinous-2;
C, with the method transformation by hybridization of the saccharoid gene of super-sweet corn in good waxy corn inbred line: the one, do maternally with dulcification, waxy corn inbred line N3 is hybridized as male parent; The 2nd, select to have the corn individual plant of the filial generation of N3 tree characteristics and make male parent, to backcross with dulcification, the corn individual plant of selecting to have the N3 merit in its backcross progeny is backcrossed with dulcification again, so 4 generations of continuous backcross; The 3rd, after 4 generations of waiting to backcross, the good individual plant bagging selfing of screening tree characteristics by continuous 4 generations selfing, brings out the stable sweet-waxy maizes inbred line TN712 of proterties in its backcross progeny;
D, the sweet faint-hearted corn hybrid seed of assembly are maternal with white waxy corn inbred line glutinous in vain-2, and sweet-waxy maizes inbred line TN712 makes male parent, and assembly hybridization selects super-sweet corn crossbreed prince charming.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217524A (en) * | 2011-05-11 | 2011-10-19 | 南京市蔬菜科学研究所 | Breeding method for sweet glutinous maize self-bred line |
| CN102726286A (en) * | 2012-06-07 | 2012-10-17 | 江苏省农业科学院 | Rapid backcross breeding method of super-sweet waxy corn selfing line |
| CN103798128A (en) * | 2014-02-10 | 2014-05-21 | 南京市蔬菜科学研究所 | Method for breeding homotype waxy corn selfing line by sweet corn selfing line |
| CN106508665A (en) * | 2016-10-28 | 2017-03-22 | 福建农林大学 | Method for selecting seeds of high sweet-resistant waxy corn varieties |
| CN108293873A (en) * | 2018-05-07 | 2018-07-20 | 山西省农业科学院玉米研究所 | A kind of selection of black sweet-waxy maizes |
| CN110583475A (en) * | 2019-10-18 | 2019-12-20 | 邯郸市农业科学院 | Breeding method of vegetable and fruit type super-sweet hybrid corn |
| CN115281072A (en) * | 2022-09-26 | 2022-11-04 | 北京市农林科学院 | Method for breeding high-lysine sweet and glutinous fresh corn variety |
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2006
- 2006-07-20 CN CN 200610098974 patent/CN1930950A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217524A (en) * | 2011-05-11 | 2011-10-19 | 南京市蔬菜科学研究所 | Breeding method for sweet glutinous maize self-bred line |
| CN102217524B (en) * | 2011-05-11 | 2012-11-14 | 南京市蔬菜科学研究所 | Breeding method for sweet glutinous maize self-bred line |
| CN102726286A (en) * | 2012-06-07 | 2012-10-17 | 江苏省农业科学院 | Rapid backcross breeding method of super-sweet waxy corn selfing line |
| CN102726286B (en) * | 2012-06-07 | 2014-09-03 | 江苏省农业科学院 | Rapid backcross breeding method of super-sweet waxy corn selfing line |
| CN103798128A (en) * | 2014-02-10 | 2014-05-21 | 南京市蔬菜科学研究所 | Method for breeding homotype waxy corn selfing line by sweet corn selfing line |
| CN106508665A (en) * | 2016-10-28 | 2017-03-22 | 福建农林大学 | Method for selecting seeds of high sweet-resistant waxy corn varieties |
| CN108293873A (en) * | 2018-05-07 | 2018-07-20 | 山西省农业科学院玉米研究所 | A kind of selection of black sweet-waxy maizes |
| CN110583475A (en) * | 2019-10-18 | 2019-12-20 | 邯郸市农业科学院 | Breeding method of vegetable and fruit type super-sweet hybrid corn |
| CN115281072A (en) * | 2022-09-26 | 2022-11-04 | 北京市农林科学院 | Method for breeding high-lysine sweet and glutinous fresh corn variety |
| CN115281072B (en) * | 2022-09-26 | 2023-01-17 | 北京市农林科学院 | Method for breeding high-lysine sweet and glutinous fresh corn variety |
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