CN102668976B - A kind of high-yield breeding method of purple leaf hybrid rice CMS line - Google Patents
A kind of high-yield breeding method of purple leaf hybrid rice CMS line Download PDFInfo
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- CN102668976B CN102668976B CN201210191514.0A CN201210191514A CN102668976B CN 102668976 B CN102668976 B CN 102668976B CN 201210191514 A CN201210191514 A CN 201210191514A CN 102668976 B CN102668976 B CN 102668976B
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Abstract
The invention discloses the high-yield breeding method of a kind of purple leaf hybrid rice CMS line, comprise the following steps: (1) arranges the date of seeding that Parent is known red B and known red A properly；(2) before sowing, seed is through seed soaking sterilization and accelerating germination, and seed shows money or valuables one carries unintentionally or bud is about half paddy, sows about one paddy of root length；(3) paddy field seedling dish sowing；(4) water and fertilizer management of nursery period, the prevention and control of plant diseases, pest control are carried out；(5) nursery period father, female parent to carry out a remove impurity；(6) that breeds field knows red B and knows red A row ratio to be 2: 8 10, and planting density is 6 × 5 cun；(7) carrying out the water and fertilizer management in breeding field, the prevention and control of plant diseases, pest control works；(8) " 920 " are rationally sprayed；(9) carry out isolation and remove impurity works；(10) artificial supplementary pollination；(11) male parent, mechanical harvesting are sliced off in time.Facilitate roguing by its characteristic with purple leaf labelling, and obtain, by cultivation technique measure, artificial supplementary pollination etc., the male-sterile seed that purity reaches the high yield of 100%.
Description
Technical field
The invention belongs to agricultural technology field, the high yield of a kind of purple leaf hybrid rice CMS line is numerous
Culturing method.
Background technology
Eighties of last century seventies, the series of three-series hybrid rice that Yuan Longping proposes at China's success spread, the nearlyest 30
For many years, hybrid rice, in cultivated area and yield, all occupies the ratio of the nearly half of rice in China, for the grain of country
Safety is made that tremendous contribution.But, hybrid rice is because of the reasons such as self-fertility and weather impact, hybrid F1Often have 3
-5% mix, thus result in Oryza glutinosa loss every year and reach 5-6 hundred million kg.Produce highly purified cenospecies be avoid this
Heavily one of measure of loss.Obtain highly purified cenospecies, breed purity and the high sterile line parent of yield is to pass
Important link, does a good job of it this link and can not only reduce production cost, moreover it is possible to ensure the hybrid seed purity of the production of hybrid seeds.
Summary of the invention
The present invention seeks to the high yield for the deficiencies in the prior art a kind of purple leaf hybrid rice CMS line of offer numerous
Culturing method.
The high-yield breeding method of a kind of purple leaf hybrid rice CMS line, comprises the following steps:
(1) arrange properly the date of seeding that Parent is known red B and known red A: breed in Nanning early season and sow mid-March, maternal
First phase male parent is broadcast again when going out 1.0 leaf than male parent early sowing about 3-5 days or female parent；Male parent divided for two phases broadcast, wherein I phase
Male parent and II phase male parent are spaced about 5-10 days；
(2) before sowing, seed is through seed soaking sterilization and accelerating germination, and seed shows money or valuables one carries unintentionally or bud is about half paddy, about one paddy of root length
Sowing；
(3) paddy field seedling dish sowing: rice seedling bed smooth good after play seedling furrow, seedling furrow are spread seedling dish, then lay one on seedling dish
The thin paddy field mud of layer, uniformly plays and knows red A or know that red B seed, on the seedling dish having spread field mud, then covers having of a thin layer
Machine is fertile, finally covers thin film cold-proof；
(4) water and fertilizer management of nursery period is carried out, the prevention and control of plant diseases, pest control: within front ten days, execute a rice seedling bed fertilizer in rice transplanting, execute 5 for every mu
Kilogram carbamide；A pesticide is sprayed in rice transplanting previous week；
(5) nursery period father, female parent to carry out a remove impurity, pulled out by green plant, only retain purple plant；
(6) that breeds field knows red B and knows red A row ratio to be 2: 8-10, and planting density is 6 × 5 cun；Male parent insert I phase and
II phase totally two row, I, II phase paternal plant is Chinese character pin-shaped arrangement；
(7) carrying out the water and fertilizer management in breeding field, the prevention and control of plant diseases, pest control works；
(8) rationally spray " 920 ": when knowing red A heading 5-10%, know red A or know that red B starts to spray " 920 "；
Every mu available " 920 " measure about 10 grams, divide and spray for three days, know that red B adds spray 2-3 altogether second and third day male parent
Gram；
(9) carry out isolation and remove impurity works: within 200 meters of field of distance breeding, do not plant the Oryza sativa L. product of heading other same period
Plant or stagger heading stage more than 12 days；Carry out a remove impurity heading stage, mainly remove the greenery mixed in maternal row
Red B plant is known by hybrid strain and holding system；
(10) artificial supplementary pollination: know and the most manually to catch up with powder, every day to catch up with three pollen when red B is bloomed, it is ensured that female
The enough pollen of this acquisition；
(11) male parent is sliced off in time, mechanical harvesting: after knowing the pollination mission that red B completes this season, sliced off in time,
Avoiding it and know that red A strives liquid manure, it is ensured that field ventilated, the period of maturation uses harvester to gather in, in harvesting
Before to have cleared up harvester, it is to avoid mixing other plant seed and rice paddy seed, the final purity that obtains reaches the sterile line of 100%
Seed.
Facilitate roguing by its characteristic with purple leaf labelling, and obtained by cultivation technique measure, artificial supplementary pollination etc.
Obtain the male-sterile seed that purity reaches the high yield of 100%.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.
The technical solution used in the present invention is applicable to any breeding with purple leaf labelling hybrid rice CMS line.This
Invention is known as a example by red A by purple leaf CMS line, and embodiments of the present invention are described in detail in detail.Know red A, know that red B is Guangxi
The sterile line that academy of agricultural sciences's rice research is bred as.Concrete grammar is as follows:
(1) date of seeding that Parent is known red B and known red A is arranged properly.Breed in Nanning early season and sow mid-March, maternal
Knowing than male parent, red A knows that the Zao heading of red B is advisable for about 3 days, therefore female parent is than male parent early sowing about 3-5 days or mother
First phase male parent is broadcast again when originally going out 1.0 leaf；Male parent divided for two phases broadcast, and wherein I phase male parent and II phase male parent are spaced 5-10 days
Left and right.
(2) before sowing, seed is through seed soaking sterilization and accelerating germination, and seed shows money or valuables one carries unintentionally or bud is about half paddy, about one paddy of root length
Sowing.
(3) paddy field seedling dish sowing.Rice seedling bed smooth good after play seedling furrow, seedling furrow are spread seedling dish, then lay one on seedling dish
The thin paddy field mud of layer, uniformly plays and knows red A or know that red B seed, on the seedling dish having spread field mud, then covers having of a thin layer
Machine is fertile, finally covers thin film cold-proof.
(4) water and fertilizer management of nursery period, the prevention and control of plant diseases, pest control are carried out.Within front ten days, execute a rice seedling bed fertilizer in rice transplanting, execute 5 for every mu
Kilogram carbamide.A pesticide is sprayed in rice transplanting previous week.
(5) nursery period Parent to carry out a remove impurity, is pulled out by green plant, only retains purple plant.
(6) that breeds field knows red B and knows red A row ratio to be 2: 8-10, and planting density is 6 × 5 cun.Male parent insert I phase and
II phase totally two row, I, II phase paternal plant is Chinese character pin-shaped arrangement.
(7) carrying out the water and fertilizer management in breeding field, the prevention and control of plant diseases, pest control works.
(8) " 920 " are rationally sprayed.Under normal circumstances, when knowing red A heading 5-10%, know red B and know that red A starts
Spray " 920 ", every mu available " 920 " are measured about 10 grams, are divided and spray for three days, know red second and third day male parent
B adds spray 2-3 gram altogether.
(9) carry out isolation and remove impurity works.The Oryza sativa L. product of heading other same period are not planted within 200 meters of field of distance breeding
Plant or stagger heading stage more than 12 days；Carry out a remove impurity heading stage, mainly remove the greenery mixed in maternal row
Red B plant is known by hybrid strain and holding system.
(10) artificial supplementary pollination.Know and when red B is bloomed, the most manually to catch up with powder, every day to catch up with three pollen, it is ensured that be female
The enough pollen of this acquisition.
(11) male parent, mechanical harvesting are sliced off in time.After knowing the pollination mission that red B completes this season, sliced off in time,
Avoid it and know that red A strives liquid manure, it is ensured that field ventilated.Period of maturation uses harvester to gather in, in harvesting
Before to have cleared up harvester, it is to avoid mixing other plant seed and rice paddy seed, the final purity that obtains reaches the sterile line of 100%
Seed.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (1)
1. the high-yield breeding method of a purple leaf hybrid rice CMS line, it is characterised in that comprise the following steps:
(1) arrange properly the date of seeding that Parent is known red B and known red A: breed in Nanning early season and sow mid-March, maternal than male parent early sowing 3-5 days or
I phase male parent is broadcast again when female parent goes out 1 leaf；Male parent divided for two phases broadcast, and wherein I phase male parent and II phase male parent are spaced 5-10 days；
(2) before sowing, seed is through seed soaking sterilization and accelerating germination, and seed shows money or valuables one carries unintentionally or bud is about about half paddy, one paddy of root length and sows；
(3) paddy field seedling dish sowing: rice seedling bed smooth good after play seedling furrow, seedling furrow are spread seedling dish, then the paddy field mud that lay one layer is thin on seedling dish, uniformly broadcast
Put and know red A or know that red B seed, on the seedling dish having spread paddy field mud, then covers the fertilizer of a thin layer, finally cover thin film cold-proof；
(4) water and fertilizer management of nursery period is carried out, the prevention and control of plant diseases, pest control: within front ten days, execute a rice seedling bed fertilizer in rice transplanting, execute 5 kilograms of carbamide for every mu；Previous in rice transplanting
Spray a pesticide individual week；
(5) nursery period father, female parent to carry out a remove impurity, pulled out by green plant, only retain purple plant；
(6) that breeds field knows red B and knows red A row ratio to be 2: 8-10, and planting density is 6 × 5 cun；Male parent inserts I phase and II phase totally two row, I, II phase
Paternal plant is Chinese character pin-shaped arrangement；
(7) carrying out the water and fertilizer management in breeding field, the prevention and control of plant diseases, pest control works；
(8) rationally spray " 920 ": know red A ear 5-10% time, know red A with knowing red B and starting and spray " 920 "；Every mu of use " 920 " amount
About 10 grams, divide and spray for three days, know that red B adds spray 2-3 gram altogether second and third day male parent；
(9) carry out isolation and remove impurity works: within 200 meters of field of distance breeding, do not plant the rice varieties of heading other same period or stagger heading stage 12 days
Above；Carry out a remove impurity heading stage, remove the greenery hybrid strain mixed in maternal row and keep system to know red B plant；
(10) artificial supplementary pollination: know and the most manually to catch up with powder, every day to catch up with three pollen when red B is bloomed, it is ensured that the enough pollen of maternal acquisition；
(11) slice off male parent in time, mechanical harvesting: after knowing the pollination mission that red B completes this season, sliced off in time, it is to avoid its with know that red A strives
Liquid manure, it is ensured that field ventilated, the period of maturation uses harvester to gather in, to have cleared up harvester, it is to avoid mix other before harvesting
Plant seed and rice paddy seed, the final purity that obtains reaches the male-sterile seed of 100%.
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| CN102668976B true CN102668976B (en) | 2016-11-16 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103548630B (en) * | 2013-10-18 | 2016-05-11 | 杨勋毅 | A kind of method that breeding of hybrid rice entire mechanization is produced |
| CN106718989A (en) * | 2016-11-11 | 2017-05-31 | 安徽华安种业有限责任公司 | A kind of producing method for seed of hybrid rice |
| CN106922522A (en) * | 2017-03-16 | 2017-07-07 | 南通季和米业有限责任公司 | Paddy rice castration hybrid seed production method |
| CN107182653A (en) * | 2017-05-15 | 2017-09-22 | 江苏华西都市农业科技发展有限公司 | A kind of Rice Cropping mode |
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| CN1185898A (en) * | 1997-09-10 | 1998-07-01 | 武汉大学 | Selection of sterility lined with leaf marks for three way crossed rice |
| CN1709037A (en) * | 2005-06-14 | 2005-12-21 | 浙江大学 | Monitorable rice planting method |
| CN1799333A (en) * | 2005-12-27 | 2006-07-12 | 辽宁省稻作研究所 | High-yield seeds production technique for japonica hybrid rice |
| CN101796918A (en) * | 2009-03-12 | 2010-08-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding and seed production methods of quality multi-resistant high-yield hybrid rice |
| CN101822209A (en) * | 2010-02-02 | 2010-09-08 | 湖南省水稻研究所 | Simple seed production method of little-hybrid rice seeds |
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2012
- 2012-06-11 CN CN201210191514.0A patent/CN102668976B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1185898A (en) * | 1997-09-10 | 1998-07-01 | 武汉大学 | Selection of sterility lined with leaf marks for three way crossed rice |
| CN1709037A (en) * | 2005-06-14 | 2005-12-21 | 浙江大学 | Monitorable rice planting method |
| CN1799333A (en) * | 2005-12-27 | 2006-07-12 | 辽宁省稻作研究所 | High-yield seeds production technique for japonica hybrid rice |
| CN101796918A (en) * | 2009-03-12 | 2010-08-11 | 江苏丘陵地区镇江农业科学研究所 | Breeding and seed production methods of quality multi-resistant high-yield hybrid rice |
| CN101822209A (en) * | 2010-02-02 | 2010-09-08 | 湖南省水稻研究所 | Simple seed production method of little-hybrid rice seeds |
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