CN106577262A - Breeding method for multi-ear super hybrid rice restorer line with high tillering capability - Google Patents
Breeding method for multi-ear super hybrid rice restorer line with high tillering capability Download PDFInfo
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- CN106577262A CN106577262A CN201611171112.9A CN201611171112A CN106577262A CN 106577262 A CN106577262 A CN 106577262A CN 201611171112 A CN201611171112 A CN 201611171112A CN 106577262 A CN106577262 A CN 106577262A
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- Prior art keywords
- spike
- breeding
- tillering ability
- strong
- strong tillering
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Classifications
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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
-
- 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
- A01H1/04—Processes of selection involving genotypic or phenotypic markers; Methods of using phenotypic markers for selection
Abstract
The invention discloses a breeding method for multi-ear super hybrid rice restorer line with high tillering capability. The breeding method comprises the following steps that 1, hybridization is conducted by taking an authorized or typed restorer line as a female parent and taking a material with the high tillering capability marker character as a male parent, and F1-generation seeds are obtained; 2, the F1-generation seed group is planted, single plants which have the high tillering capability marker character and the female parent high yield character are screened out, and F2-generation seeds are obtained; 3, the F2-generation seeds are planted, single plant selection is conducted, single plants which have the high tillering capability marker character and the female parent high yield character are screened out, and F3-generation seeds are obtained. According to the breeding method, the multi-ear super hybrid rice restorer line with the high tillering capability can be bred, the multi-ear male parent is combined and hybridized with a two-line sterile line, and a novel multi-ear super hybrid rice combination can be obtained even if the tillering capability of the female parent for combination is slightly weak; the breeding efficiency is high, implementation is easy and convenient, and the cost is low.
Description
Technical field
The present invention relates to agricultural biological technical field, more particularly to a kind of multi-spike-type Super Hybrid with strong tillering ability
Rice Breeding for restoration lines method.
Background technology
Since two thousand, China's Breeding on Super Hybrid Rice increasingly tends to select large-spike cultivar, but large spike product
Plant and also expose many problems, because its cane is sturdy, fringe type is huge, the percentage of earbearing tiller is high, but tillering ability is weak, per 666.7m2Effectively
Spike number is significantly lower than general cross rice varieties.In order to increase Biomass, number of productive ear is increased to greatest extent, obtain high yield, no
Not a large amount of applied nitrogens are obtained, per 666.7m2Purity nitrogen amount of application reach not seen before 28 kilogram, be common peasant household one season rice nitrogen
2 times or so of fertile amount of application, output increased, but cause fertilizer amount to be significantly increased with cost.Therefore initiative has strong tiller
The multi-spike-type restorer of ability, is to solve that current agriculture chemical amount of application is big, environmental pollution with composition multi-spike-type super hybridized rice
Seriously, the effective ways of green safety high-yield and high-efficiency are realized, the sustainable development of Rice Production can be promoted, had a wide range of applications
Prospect.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes the multi-spike-type Super Hybrid with strong tillering ability
Rice Breeding for restoration lines method.
Multi-spike-type super hybridized rice Breeding for restoration lines method with strong tillering ability proposed by the present invention, including following step
Suddenly：
S1：Make maternal with restorer authorize or sizing, father is made with the material with strong tillering ability marker trait
This, is hybridized, and obtains F1 generation seed；
S2：Plantation F1 generation seed populations, filter out with strong tillering ability marker trait and with maternal superior yield
The individual plant of shape, obtains F2 for seed；
S3：Plantation F2 carries out Single-plant selection for seed, continues to filter out with strong tillering ability marker trait and with mother
The individual plant of this superior yield character obtains F3 for seed；
S4：Selection-breeding is continued using systematic breeding method, until F7-F9 generations, obtains stable having original concurrently with strong tillering ability
Maternal excellent economical character recovers with yield traits, the multi-spike-type super hybridized rice that combining ability is strong, flowering habit is good, pollen amount is sufficient
System.
Preferably, in the S1, male parent must select the material with strong tillering ability marker trait, and female parent must be used works as
Before promote mainly the male parent of combination or the male parent material of sizing, its tillering ability is relatively weak.
Preferably, in the S2-S4, systematic breeding method must be selected continuously not only to be had the strong tillering ability of male parent but also has
Maternal excellent economical character and yield traits, the multi-spike-type restorer that flowering habit is good, pollen amount is sufficient.
Preferably, in the S4, the new multi-spike-type restorer of acquisition is not the variation that environment causes, but by hybridization
Generate hereditary variation and stable new strain.
In the present invention, described multi-spike-type super hybridized rice Breeding for restoration lines method can be selected effectively with strong point
The multi-spike-type super hybridized rice restorer of tiller ability, the multi-spike-type Super Hybrid rice varieties with composition have tillering ability strong, fertile
The multiple advantages such as amount of application is low for material, Maturity neat and consistent, short bar is anti-fall, be suitable for mechanization to manage, can guide currently with from now on
Very the selection-breeding of Hybrid Rice Varieties over a long time, can promote the sustainable development of Rice Production, have a wide range of applications, the present invention
Breeding Efficiency is higher, implements simple and convenient, low cost.
Description of the drawings
Fig. 1 is the selection-breeding of the multi-spike-type super hybridized rice Breeding for restoration lines method with strong tillering ability proposed by the present invention
Collection of illustrative plates.
Specific embodiment
Embodiment
The present embodiment proposes the multi-spike-type super hybridized rice Breeding for restoration lines method with strong tillering ability, including following
Step：
S1：Make maternal with restorer authorize or sizing, father is made with the material with strong tillering ability marker trait
This, is hybridized, and obtains F1 generation seed；
S2：Plantation F1 generation seed populations, filter out with strong tillering ability marker trait and with maternal superior yield
The individual plant of shape, obtains F2 for seed；
S3：Plantation F2 carries out Single-plant selection for seed, continues to filter out with strong tillering ability marker trait and with mother
The individual plant of this superior yield character obtains F3 for seed；
S4：Selection-breeding is continued using systematic breeding method, until F7-F9 generations, obtain being stably obtained with strong tillering ability, and
The former maternal excellent economical character of tool and yield traits, the multi-spike-type super hybridized rice that combining ability is strong, flowering habit is good, pollen amount is sufficient
Restorer.
With reference to Fig. 1, the applicant, in Changsha, is that restorer raises rice with commonly use in China's production two in the summer in 2003
No. 6 (R9311), hybridizes with the material IR 69713 with strong tillering ability introduced with International Rice, obtains having strong point
Tiller feature has the F1 for raising No. 6 typical characteristics of rice again, then carries out selection-breeding with systematic breeding method, to 2006, is stablized
New two with strong tillering ability, that economical character is stable be restorer P143.
Breeding Characteristics
1st, in rice Production season, when -9 during the morning 6, the maternal plant that do not bloom is selected, with shears by clever shell top 1/3
Wipe out, expose flower pesticide, with sharp tweezers 6 flower pesticide of base portion are removed, reject clean, stigma should not be hurt；Bagging process is carried out, is prevented
Only go here and there powder；The paternal plant bloomed is selected when -11 during the morning 9 carries out artificial pollination to emasculation individual plant；By bagging after having pollinated
Closure, obtains F1 seeds.
2nd, the root and stem of certain plants of F1 colonies about 2000 is planted, is therefrom filtered out and both have the strong shooting property of male parent, and with maternal excellent agriculture
Skill character and yield traits, the individual plant that combining ability is strong, flowering habit is good, pollen amount is sufficient, by single fringe Systematic selection, until surely
It is fixed, obtain new strong tiller restorer.
The feature of new multi-spike-type super hybridized rice restorer P143 of selection-breeding
Example：The restorer participates in demonstration in Hunan, a collection of every sowing in 15 days in 4-July 5 Changsha April, as a result
For：
(1) morphological characteristic：During multi-spike-type restorer P143 leaf width of blade second from the bottom is, cane angle be it is upright, most
The length of long awns is extremely short, and being distributed as awns is rare, and number of grain per ear is many, and grain length is extremely long, during grain width is, grain
Mass of 1000 kernel is height, and brown rice length is extremely long.
(2) leaf number of the main culm and plant height：Changsha plantation Vernalization response 15-16 leaves, 125 centimetres of plant height, plant type is compacter, sword
Leaf is upright, and 3, top Leaf pattern is good.
(3) Spike granule character：In Changsha, the effective fringe of plantation is more, average 18-20, every total grain panicle number 190 or so, grain
In length, grain narrow width, weight of thousand grain 30-31 gram.
(4) Other Main Agronomic Characters：Duration from seeding to heading is sowed in Changsha May, is 90-92 days.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (4)
1. there is the multi-spike-type super hybridized rice Breeding for restoration lines method of strong tillering ability, it is characterised in that comprise the following steps：
S1：Make maternal with restorer authorize or sizing, male parent is made with the material with strong tillering ability marker trait, enter
Row hybridization, obtains F1 generation seed；
S2：Plantation F1 generation seed populations, filter out with strong tillering ability marker trait and with maternal superior yield character
Individual plant, obtains F2 for seed；
S3：Plantation F2 carries out Single-plant selection for seed, continues to filter out with strong tillering ability marker trait and with maternal excellent
The individual plant of good yield traits obtains F3 for seed；
S4：Selection-breeding is continued using systematic breeding method, until F7-F9 generations, obtains stable having former female parent concurrently with strong tillering ability
Excellent economical character and yield traits, the multi-spike-type super hybridized rice restorer that combining ability is strong, flowering habit is good, pollen amount is sufficient.
2. the multi-spike-type super hybridized rice Breeding for restoration lines method with strong tillering ability according to claim 1, it is special
Levy and be, in the S1, male parent must select the material with strong tillering ability marker trait, and female parent must be with currently promoting mainly group
The male parent of conjunction or the male parent material of sizing.
3. the multi-spike-type super hybridized rice Breeding for restoration lines method with strong tillering ability according to claim 1, it is special
Levy and be, in the S2-S4, systematic breeding method must continuously select not only have the strong tillering ability of male parent but also with maternal excellent agriculture
Skill character and yield traits, the multi-spike-type restorer that flowering habit is good, pollen amount is sufficient.
4. the multi-spike-type Breeding for restoration lines method with strong tillering ability according to claim 1, it is characterised in that described
In S4, the new multi-spike-type restorer of acquisition is not the variation that environment causes, but by hybridization generate hereditary variation and
Stable new strain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611171112.9A CN106577262A (en) | 2016-12-16 | 2016-12-16 | Breeding method for multi-ear super hybrid rice restorer line with high tillering capability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611171112.9A CN106577262A (en) | 2016-12-16 | 2016-12-16 | Breeding method for multi-ear super hybrid rice restorer line with high tillering capability |
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| CN106577262A true CN106577262A (en) | 2017-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111543311A (en) * | 2020-06-04 | 2020-08-18 | 广东省农业科学院水稻研究所 | Breeding method of hybrid rice restorer line |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103461093A (en) * | 2013-08-14 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Intersubspecific indica type three-line hybrid rice restorer line breeding method |
| CN105145334A (en) * | 2015-07-10 | 2015-12-16 | 江苏省徐州大华种业有限公司 | Seed selection method of new rice species |
-
2016
- 2016-12-16 CN CN201611171112.9A patent/CN106577262A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103461093A (en) * | 2013-08-14 | 2013-12-25 | 江苏丘陵地区镇江农业科学研究所 | Intersubspecific indica type three-line hybrid rice restorer line breeding method |
| CN105145334A (en) * | 2015-07-10 | 2015-12-16 | 江苏省徐州大华种业有限公司 | Seed selection method of new rice species |
Non-Patent Citations (1)
| Title |
|---|
| 彭锐等: "抗稻瘟病两系杂交稻新组合Y两优143", 《杂交水稻》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111543311A (en) * | 2020-06-04 | 2020-08-18 | 广东省农业科学院水稻研究所 | Breeding method of hybrid rice restorer line |
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Application publication date: 20170426 |