CN108935084A - A kind of paddy rice cross breeding breeding method - Google Patents
A kind of paddy rice cross breeding breeding method Download PDFInfo
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- CN108935084A CN108935084A CN201811140051.9A CN201811140051A CN108935084A CN 108935084 A CN108935084 A CN 108935084A CN 201811140051 A CN201811140051 A CN 201811140051A CN 108935084 A CN108935084 A CN 108935084A
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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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Abstract
The invention belongs to field of rice cultivation, specifically disclose a kind of paddy rice cross breeding breeding method.The present invention is maternal and Hua Zhanwei male parent with beautiful 1A, hybridization obtains late rice new varieties (being denoted as the excellent China of U.S. to account for), the late rice tillering ability is relatively strong (tillering capacity is maintained at 497.7% or so), lodging resistance is preferable, rice (grain of rice evil is white small, and appearance rice matter is good) of fine quality, yielding ability are preferable.Also, kind is safe and reliable, does not detect CaMV35S promoter, NOS terminator, Bt gene, BAR gene, HPT gene.
Description
Technical field
The invention belongs to field of rice cultivation, and in particular to a kind of paddy rice cross breeding breeding method.
Background technique
Rice is one of most important cereal crops in China, ploughs contract with population built-up with the improvement of people ' s living standards
The trend subtracted continues, and improves rice and makees yield, increases stable supplying, is the class that China's rice breeding makes great efforts always tackling key problem for a long time
Topic.Carrying out high and stable yields breeding using excellent germ plasm resource is to improve rice to make the most effective and most economical approach of yield.
But traditional breeding method is carried out certainly by selection with excellent character male parent and maternal advanced hybridization again
It hands over, although can also obtain excellent offspring, the diversity of offspring will carry out multiple screening and cultivation to offspring, cause
Seed selection process very complicated, period length, low efficiency.
Therefore, how to shorten breeding cycle, and energy quickly breeding goes out the target product that high yield, comprehensive resistance are strong, setting percentage is high
System is a problem to be solved.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of paddy rice cross breeding breeding method, this method includes following step
It is rapid:
(1) parental source and breeding: female parent is beauty 1A, and male parent accounts for for China；
(2) Parent is broadcast: male parent China accounts for be sowed in early and middle ten days in May, and duration from seeding to heading 85 days or so；The beautiful 1A5 middle of the month is sowed,
Duration from seeding to heading 79-84 days, leaf number of the main culm 15-16 leaf；Spring system is advisable with male parent early sowing 5-6 days, poor 0.5 leaf of leaf, summer and autumn father
Maternal same broadcast is advisable；
(3) it cultivates Parent and strengthens seedling, transplant in due course: using the male parent production of hybrid seeds of 2 phases, the 2nd phase male parent is more late than the 1st phase to broadcast 5~7
It；Parent wants light seeding is even to broadcast, and cultivates more tillers and strengthens seedling, the length of time rice seedlings grow should control within 25 days；
(4) reinforce fertilizer and water management: seed farm farmyard manure or compound fertilizer make base fertilizer, per acre 23~26kg, timely top dressing,
Based on quick-acting nitrogenous fertilizer；Mid-term open field is gently shone, and sees that seedling applies fertilizer after rehydration, is not dehydrated too early after having caught up with pollen；
(5) timely prediction and florescence alternation, rationally spray gibberellin: when ear differentiation starts it is noted that Parent is looked into stripping
Florescence such as predicts that there is deviation at the florescence, and adopt remedial measures florescence alternation in time, and flowering regulation is based on promoting；
(6) pay attention to the prevention and control of plant diseases, pest control: it is noted that prevention and treatment planthopper, snout moth's larva and rice leaf roller, prevent rice kernel smut.
Wherein, the origin of above-mentioned paddy rice cross breeding breeding method, the beauty of female parent described in step (1) 1A is: winning B with II -32B/
F2 generation and holding be intermediate materials F3-3 selection cross at material 164-2-1B is kept, respectively in Sanya and Changsha according to pedigree
It is Y138B that method, which is bred as stable holding material number by 6 generations, and is hybridized with U.S. light leaf rice US-2B；By be law popularization be bred as protect
It holds material to hybridize with sterile line Feng Yuan A, and goes out through mostly that pollen abortion is thorough, and plant type is moderate for backcross breeding, stalk is short strong, and fringe is big
Grain is more, and stigma exposing ratio is high, and rice is of fine quality, economical character neat and consistent, is elected to and names as beautiful 1A.
Wherein, above-mentioned paddy rice cross breeding breeding method, beauty 1A sterile line strain rate described in step (1) are 100%, and abortion rate is
99.99%, wherein allusion quotation loses 94.76%.
Wherein, above-mentioned paddy rice cross breeding breeding method, Parent described in step (1) will periodically purificate and rejuvenate, using quality
Reach the parental seed production of hybrid seeds of second level or more, it is ensured that production of hybrid seeds parental purity.
Under the conditions of normal weather, early when beautiful 1A is spent, full blossoming time is long, and morning flower ratio is big.(August under the conditions of summer fine day
In, last ten-days period full blossom), taking time 09:10, bloom peak be 10:30-11:30, morning flower account for 75% or more.Angle of glume opening
Greatly, column cap is flourishing, and exposing ratio is up to 86% (wherein bilateral exposing ratio 41%).
Xian type in beautiful 1A category, response to temperature is similar to II -32A, sowing Changsha mid-May, duration from seeding to heading 79-84 days, main
Cauline leaf the piece number 15-16 leaf.The sowing of Sanya late November to early December, duration from seeding to heading 95-105 days.Average plant height 80.0cm is left
The right side, tillering ability is medium, and plant type is compact, and stalk is sturdy resistant to lodging, and blade is bigger, and sword-like leave is straight and upright, leaf color pale green, base portion leaf sheath, leaf
Ear, leaf margin, grain husk point, internode base portion are colourless, column cap white, big panicle many grains per panicle.
Male parent " China accounts for " is the indica restorer line being bred as by rice in China, be with outside draw showed in material it is high-quality and right
A variety of disease pests have the SC2-S6 of resistance to/resistance to carry out the Systematic selection of restoring force and coordinate force, are being class sterile line with multiple three
Test cross relatively after, obtain " China accounts for " of the final shaping eventually.
Wherein, above-mentioned paddy rice cross breeding breeding method, crop field parental is 2:(12~14 when cultivating in step (3)),
Male parent seeding row spacing 20cm × 26.7cm, maternal seeding row spacing 13.3cm × 16.7cm.
Wherein, above-mentioned paddy rice cross breeding breeding method, the dosage of gibberellin described in step (5) are 15~20g per acre, divide 2
It sprays for~3 times, Parent is the same as spraying.
Wherein, above-mentioned paddy rice cross breeding breeding method, the compound fertilizer applied in step (4) per acre includes: 5~8kg of urea, mistake
20~30kg of calcium phosphate, 9~15kg of calcium magnesium phosphate, 3~5kg of potassium sulfate, 3~5kg of ferrous sulfate.
Wherein, above-mentioned paddy rice cross breeding breeding method prevents and treats planthopper, snout moth's larva and rice leaf roller described in step (6)
Method includes:
Physical method: every 10~13 mu of neoasozins fill 30W black light trapping planthopper, snout moth's larva and rice leaf roller at
Worm；
Biological method: transplanting 15d to boot stage puts duckling in a suitable place to breed into rice field, and with duckling 10 or so, rice enters to be opened mu
Florescence withdraws duck.
The beneficial effects of the present invention are:
The present invention is maternal and Hua Zhanwei male parent with beautiful 1A, and hybridization obtains late rice new varieties (being denoted as the excellent China of U.S. to account for), the evening
Rice tillering ability is relatively strong (tillering capacity is maintained at 497.7% or so), and lodging resistance is preferable, and rice is of fine quality, and (grain of rice dislikes white small, appearance rice matter
Well), yielding ability is preferable.Also, kind is safe and reliable, does not detect CaMV35S promoter, NOS terminator, Bt gene, BAR base
Cause, HPT gene.
Specific embodiment
Further detailed description is done to technical solution of the present invention below in conjunction with specific embodiment.The following example
It is merely illustrative the ground description and interpretation present invention, and is not necessarily to be construed as limiting the scope of the invention.It is all to be based on this hair
In the range of the technology that bright above content is realized is encompassed by the present invention is directed to protect.
Unless otherwise indicated, raw materials and reagents used in the following embodiment are commercial goods, or can be by
Perception method preparation.
Embodiment 1
Paddy rice cross breeding breeding method, method includes the following steps:
(1) parental source and breeding: female parent is beauty 1A, and male parent accounts for for China；
The origin of maternal beauty 1A is: winning the F2 of B for being intermediate materials F3-3 selection cross into holding with holding with II -32B/
Material 164-2-1B, being bred as stable holding material number by 6 generations according to pedigree method in Sanya and Changsha respectively is Y138B,
And hybridize with U.S. light leaf rice US-2B；Hybridize by being law popularization incubation holding material with sterile line Feng Yuan A, and is selected through mostly generation backcrossing
It is thorough to bring out pollen abortion, plant type is moderate, and stalk is short strong, and big panicle many grains per panicle, stigma exposing ratio is high, and rice is of fine quality, and economical character is neat
Unanimously, it is elected to and names as beautiful 1A.Beautiful 1A sterile line strain rate is 100%, and abortion rate is 99.99%, and wherein allusion quotation loses 94.76%.
Parent will periodically purificate and rejuvenate, and the parental seed production of hybrid seeds of second level or more be reached using quality, it is ensured that production of hybrid seeds parent
Purity.
(2) Parent is broadcast: male parent China accounts for be sowed in early and middle ten days in May, and duration from seeding to heading 85 days or so；The beautiful 1A5 middle of the month is sowed,
Duration from seeding to heading 79-84 days, leaf number of the main culm 15-16 leaf；Spring system is advisable with male parent early sowing 5-6 days, poor 0.5 leaf of leaf, summer and autumn father
Maternal same broadcast is advisable；
(3) it cultivates Parent and strengthens seedling, transplant in due course: using the male parent production of hybrid seeds of 2 phases, the 2nd phase male parent is more late than the 1st phase to broadcast 5~7
It；Parent wants light seeding is even to broadcast, and cultivates more tillers and strengthens seedling, the length of time rice seedlings grow should control within 25 days；Crop field parental be 2:(12~
14), male parent seeding row spacing 20cm × 26.7cm, maternal seeding row spacing 13.3cm × 16.7cm.
(4) reinforce fertilizer and water management: seed farm farmyard manure or compound fertilizer make base fertilizer, per acre 23~26kg, timely top dressing,
Based on quick-acting nitrogenous fertilizer；Mid-term open field is gently shone, and sees that seedling applies fertilizer after rehydration, is not dehydrated too early after having caught up with pollen；Apply per acre
Compound fertilizer include: urea 6kg, calcium superphosphate 23kg, calcium magnesium phosphate 12kg, potassium sulfate 4kg, ferrous sulfate 4kg；
(5) timely prediction and florescence alternation, rationally spray gibberellin: when ear differentiation starts it is noted that Parent is looked into stripping
Florescence such as predicts that there is deviation at the florescence, and adopt remedial measures florescence alternation in time, and flowering regulation is based on promoting；The use of gibberellin
Amount is 15~20g per acre, divides 2~3 times and sprays, and Parent is the same as spray.
(6) pay attention to the prevention and control of plant diseases, pest control: it is noted that prevention and treatment planthopper, snout moth's larva and rice leaf roller, prevent rice kernel smut.It is anti-
The method for controlling planthopper, snout moth's larva and rice leaf roller includes:
Physical method: every 10~13 mu of neoasozins fill 30W black light trapping planthopper, snout moth's larva and rice leaf roller at
Worm；
Biological method: transplanting 15d to boot stage puts duckling in a suitable place to breed into rice field, and with duckling 10 or so, rice enters to be opened mu
Florescence withdraws duck.
Embodiment 2
1 product of embodiment is planted, with day, excellent China is accounted for as a control group.
1 product feature characteristic of embodiment: Three-line Indica Hybrid Rice kind.Make Cultivation of Late-season Rice, Quan Sheng in Hunan Province
The phase is educated 123.3 days, than the control excellent Hua Zhanchang in day 0.4 day.97.7 centimetres of plant height, effective 22.1 ten thousand fringe of fringe per acre, every total grain panicle number
152.8, setting percentage 80.8%, 24.5 grams of mass of 1000 kernel.Resistance: leaf pest are 3.0 grades average, and fringe pest is 4.2 grades average, fringe pest loss late
It is 2.4 grades average, rice blast comprehensive resistance index 3.0,7.0 grades of bacterial leaf-blight, 5.5 grades of false smut.Rice matter main indicator: Coarse Rice Rate
80.8%, polished rice rate 72.0%, head rice rate 60.1%, 7.1 millimeters of grain length, length-width ratio 3.6, chalky grain rate 19%, chalkiness degree
4.9%, 1 grade of transparency, 5.0 grades of caustic SCC, 30 millimeters of gel consistence, amylose content 22.2%.The kind ripe phase is suitable for, rich
Production property is good.Plant type is moderate, and growth potential is strong, and plant is neat, and leaf appearance is upright, and Ye Xiahe, the later period discolors, and banded sclerotial blight morbidity is light.Nothing
Pilot lodges.
Yield performance: the ripe A group regional testing late of participations Hunan Province late rice in 2016,602.5 kilograms of average yield per mu, than compareing
Its excellent China accounts for volume increase 3.9%；Continuous examination in 2017,584.8 kilograms of average yield per mu, China more excellent than control day accounts for volume increase 2.0%；The area Liang Nian
Domain tests 593.6 kilograms of average yield per mu, than control volume increase 2.9%.It is 4.82 kilograms of the daily output, higher by 2.66% than compareing.2017
Pilot production, 519.2 kilograms of average yield per mu, China more excellent than control day accounts for volume increase 1.8%.
More than, embodiments of the present invention are illustrated.But the present invention is not limited to above embodiment.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (8)
1. a kind of paddy rice cross breeding breeding method, which is characterized in that method includes the following steps:
(1) parental source and breeding: female parent is beauty 1A, and male parent accounts for for China；
(2) Parent is broadcast: male parent China accounts for be sowed in early and middle ten days in May, and duration from seeding to heading 85 days or so；The beautiful 1A5 middle of the month is sowed, and the beginning is broadcast
Go through the phase 79-84 days, leaf number of the main culm 15-16 leaf；Spring system is advisable with male parent early sowing 5-6 days, poor 0.5 leaf of leaf, summer and autumn Parent
It is advisable with broadcasting；
(3) it cultivates Parent and strengthens seedling, transplant in due course: using the male parent production of hybrid seeds of 2 phases, the 2nd phase male parent is more late than the 1st phase to be broadcast 5~7 days；Father
Female parent wants light seeding is even to broadcast, and cultivates more tillers and strengthens seedling, the length of time rice seedlings grow should control within 25 days；
(4) reinforce fertilizer and water management: seed farm farmyard manure or compound fertilizer make base fertilizer, per acre 23~26kg, timely top dressing, with speed
Based on effect property nitrogenous fertilizer；Mid-term open field is gently shone, and sees that seedling applies fertilizer after rehydration, is not dehydrated too early after having caught up with pollen；
(5) timely prediction and florescence alternation, rationally spray gibberellin: when ear differentiation starts it is noted that Parent flower is looked into stripping
Phase such as predicts that there is deviation at the florescence, and adopt remedial measures florescence alternation in time, and flowering regulation is based on promoting；
(6) pay attention to the prevention and control of plant diseases, pest control: it is noted that prevention and treatment planthopper, snout moth's larva and rice leaf roller, prevent rice kernel smut.
2. paddy rice cross breeding breeding method according to claim 1, which is characterized in that the beauty of female parent described in step (1) 1A's
Origin is: winning the F2 generation of B with II -32B/ and holding is intermediate materials F3-3 selection cross at material 164-2-1B is kept, respectively
Being bred as stable holding material number by 6 generations according to pedigree method in Sanya and Changsha is Y138B, and with U.S. light leaf rice US-
2B hybridization；Law popularization is bred as that material is kept to hybridize with sterile line Feng Yuan A by being, and it is thorough through mostly to go out pollen abortion for backcross breeding,
Plant type is moderate, and stalk is short strong, big panicle many grains per panicle, and stigma exposing ratio is high, and rice is of fine quality, economical character neat and consistent, it is elected and name for
Beautiful 1A.
3. paddy rice cross breeding breeding method according to claim 1, which is characterized in that beauty 1A sterile line described in step (1)
Strain rate is 100%, and abortion rate is 99.99%, and wherein allusion quotation loses 94.76%.
4. paddy rice cross breeding breeding method according to claim 1, which is characterized in that Parent described in step (1) will be determined
Phase purification and rejuvenation, the parental seed production of hybrid seeds of second level or more are reached using quality, it is ensured that production of hybrid seeds parental purity.
5. paddy rice cross breeding breeding method according to claim 1, which is characterized in that crop field parent when being cultivated in step (3)
Current row ratio is 2:(12~14), male parent seeding row spacing 20cm × 26.7cm, maternal seeding row spacing 13.3cm × 16.7cm.
6. paddy rice cross breeding breeding method according to claim 1, which is characterized in that the use of gibberellin described in step (5)
Amount is 15~20g per acre, divides 2~3 times and sprays, and Parent is the same as spray.
7. paddy rice cross breeding breeding method according to claim 1, which is characterized in that apply per acre in step (4) compound
Fertilizer include: 5~8kg of urea, 20~30kg of calcium superphosphate, 9~15kg of calcium magnesium phosphate, 3~5kg of potassium sulfate, ferrous sulfate 3~
5kg。
8. paddy rice cross breeding breeding method according to claim 1, which is characterized in that prevention and treatment planthopper described in step (6),
The method of snout moth's larva and rice leaf roller includes:
Physical method: a 30W black light trapping planthopper, snout moth's larva and rice leaf roller adult are filled every 10~13 mu of neoasozins；
Biological method: 15d is to boot stage for transplanting, puts duckling in a suitable place to breed into rice field, for mu with duckling 10 or so, rice enters florescence
Duck is withdrawn.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972282A (en) * | 2012-10-22 | 2013-03-20 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seed of Luyou Huazhan |
| CN102986522A (en) * | 2012-10-22 | 2013-03-27 | 北京金色农华种业科技有限公司 | Method for producing hybrid rice seeds Liangyou huazhan |
-
2018
- 2018-09-28 CN CN201811140051.9A patent/CN108935084A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102972282A (en) * | 2012-10-22 | 2013-03-20 | 北京金色农华种业科技有限公司 | Production method for hybrid rice seed of Luyou Huazhan |
| CN102986522A (en) * | 2012-10-22 | 2013-03-27 | 北京金色农华种业科技有限公司 | Method for producing hybrid rice seeds Liangyou huazhan |
Non-Patent Citations (2)
| Title |
|---|
| 吴正栋等: "优质、高产、早熟杂交晚稻中百优华占高产制种技术", 《中国稻米》 * |
| 祁志兵: "天优华占在四川的优质高产制种技术", 《种子科技》 * |
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