CN107567990A - A kind of method of two-line sterile line " one broadcasts three use " - Google Patents
A kind of method of two-line sterile line " one broadcasts three use " Download PDFInfo
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- CN107567990A CN107567990A CN201710631317.9A CN201710631317A CN107567990A CN 107567990 A CN107567990 A CN 107567990A CN 201710631317 A CN201710631317 A CN 201710631317A CN 107567990 A CN107567990 A CN 107567990A
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Abstract
The invention discloses a kind of method of two-line sterile line " one broadcasts three use ", comprise the following steps：Seed treatment before sowing, by the end of March sowing, fertility selection mid-June differentiate, by the end of June to early July impurity elimination, cut stubble, August early and middle ten dayses combo identification fit rate, September and just harvest it and combine Fl for hybrid seed, the sterile line toothing is cut into stubble, sterile line regeneration mid-September simultaneously, and Fertility al-teration, early and middle ten dayses in October harvest the male-sterile seed.The present invention takes full advantage of local natural resources, shorten the double-linear hybrid rice breeding of new variety cycle, accelerate two-line sterile line germ plasm resource fertility and differentiate judgement, the double-line hybrid combination production of hybrid seeds and two-line sterile line material reproductive schedules, improve two-line hybrid rice breeding of new variety efficiency.
Description
Technical field
The present invention relates to a kind of method of two-line sterile line " one broadcasts three use ", belong to agricultural technology field.
Background technology
So-called two-line sterile line " one broadcasts three use " is exactly the two-line sterile line seed that will be bred then in Hainan, in locality one
Secondary sowing, the fertility for the seed select identification；Fl generations are produced for the both sexes sterile line and restorer combo；For this not
Educate the Fertility al-teration seed harvest for being.
Current double-linear hybrid rice breeding of new variety cycle length, two-line sterile line germ plasm resource fertility differentiate judgement, two
It is that the cross combination production of hybrid seeds and two-line sterile line material reproductive schedules are slow, two-line hybrid rice breeding of new variety efficiency is low.Therefore, we
The method for proposing a kind of two-line sterile line " one broadcasts three use ".
The content of the invention
It is a primary object of the present invention to provide a kind of method of two-line sterile line " one broadcasts three use ", locality is made full use of certainly
Right resource, shorten the double-linear hybrid rice breeding of new variety cycle, accelerate two-line sterile line germ plasm resource fertility differentiate judge,
Double-line hybrid combines the production of hybrid seeds and two-line sterile line material reproductive schedules, improves two-line hybrid rice breeding of new variety efficiency, can be with
Effectively solve the problems, such as in background technology.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of method of two-line sterile line " one broadcasts three use ", comprises the following steps：
1) processing before two-line sterile line seed is sowed, the sowing of two-line sterile line seed is entered in shed by the end of March
Row seedling；
2) mid-June, differentiate according to the local period temperature, illumination, field growing way appearance, growing process and judge, carry out
Fertility selection differentiates；
3) cleaned by the end of June to early July, cut stubble, i.e., setting percentage is high, the i.e. high plant of Fertility al-teration origin temp
Involve root removal in a criminal case, setting percentage is extremely low, i.e. the relatively low cm of toothing 35 of Fertility al-teration origin temp cuts stubble, and its toothing is high
Degree is to ensure the sterile line ratooning rice florescence with male parent flower synchronization as standard；
4) the sterile line florescence of toothing is mated (combo identification fit rate) with the restorer florescence by August early and middle ten dayses,
It is harvested at the beginning of September and combines F1 generation hybrid seed, while the sterile line toothing is cut into stubble；
5) sterile line mid-September regenerates, and Fertility al-teration, early October, harvests the male-sterile seed.
Further, the fertility selection differentiates and needed the transformation origin temp of required two-line sterile line kind and parent
Originally compare, select the sensitive fertility period of the kind Fertility al-teration.
Further, the two-line sterile line kind time of infertility each growing process goes through the pass of phase and eco environment facto
Connection, it is necessary to detailed observation record local field microclimate or with meteorological department's cooperation statistical analysis.
Further, the determination of the two-line sterile line kind sowing date must take into full account the restorer with its combo
The adjustment of growing process or interval sowing restorer.
Further, the height for the stubble left needs to be calculated according to Leaf-Age-Model and two-line sterile line cuts regenerative growth hair after stubble
" gradient " is determined or carried out after educating the weather forecast comprehensive analysis in stage cuts stubble.
The present invention takes full advantage of local natural resources, shortens the double-linear hybrid rice breeding of new variety cycle, accelerates
Two-line sterile line germ plasm resource fertility differentiates judgement, the double-line hybrid combination production of hybrid seeds and two-line sterile line material reproductive schedules, improves
Two-line hybrid rice breeding of new variety efficiency.
Embodiment
To be easy to understand the technical means, the inventive features, the objects and the advantages of the present invention, with reference to
Embodiment, the present invention is expanded on further.
A kind of method of two-line sterile line " one broadcasts three use ", comprises the following steps：
1) processing before two-line sterile line seed is sowed, the sowing of two-line sterile line seed is entered in shed by the end of March
Row seedling；
2) mid-June, differentiate according to the local period temperature, illumination, field growing way appearance, growing process and judge, carry out
Fertility selection differentiates；
3) cleaned by the end of June to early July, cut stubble, i.e., setting percentage is high, the i.e. high plant of Fertility al-teration origin temp
Involve root removal in a criminal case, setting percentage is extremely low, i.e. the relatively low cm of toothing 35 of Fertility al-teration origin temp cuts stubble, and its toothing is high
Degree is to ensure the sterile line ratooning rice florescence with male parent flower synchronization as standard；
4) the sterile line florescence of toothing is mated (combo identification fit rate) with the restorer florescence by August early and middle ten dayses,
It is harvested at the beginning of September and combines F1 generation hybrid seed, while the sterile line toothing is cut into stubble；
5) sterile line mid-September regenerates, and Fertility al-teration, early October, harvests the male-sterile seed.
Further, the fertility selection differentiates and needed the transformation origin temp of required two-line sterile line kind and parent
Originally compare, select the sensitive fertility period of the kind Fertility al-teration.
Further, the two-line sterile line kind time of infertility each growing process goes through the pass of phase and eco environment facto
Connection, it is necessary to detailed observation record local field microclimate or with meteorological department's cooperation statistical analysis.
Further, the determination of the two-line sterile line kind sowing date must take into full account the restorer with its combo
The adjustment of growing process or interval sowing restorer.
Further, the height for the stubble left needs to be calculated according to Leaf-Age-Model and two-line sterile line cuts regenerative growth hair after stubble
" gradient " is determined or carried out after educating the weather forecast comprehensive analysis in stage cuts stubble.
Local natural resources is taken full advantage of, the double-linear hybrid rice breeding of new variety cycle is shortened, accelerates two systems not
It is that germ plasm resource fertility differentiates judgement, the double-line hybrid combination production of hybrid seeds and two-line sterile line material reproductive schedules to educate, and improves two systems
Hybrid paddy rice breeding of new variety efficiency.
Some one exemplary embodiments of the present invention are only described by way of explanation above, undoubtedly, for ability
The those of ordinary skill in domain, without departing from the spirit and scope of the present invention, can be with a variety of modes to institute
The embodiment of description is modified.Therefore, foregoing description is inherently illustrative, and should not be construed as will to right of the present invention
Ask the limitation of protection domain.
Claims (5)
- A kind of 1. method of two-line sterile line " one broadcasts three use ", it is characterised in that：Comprise the following steps：1) processing before two-line sterile line seed is sowed, the sowing of two-line sterile line seed is educated in shed by the end of March Seedling；2) mid-June, differentiate according to the local period temperature, illumination, field growing way appearance, growing process and judge, carry out fertility Selection differentiates；3) cleaned by the end of June to early July, cut stubble, i.e., setting percentage is high, i.e. the high plant of Fertility al-teration origin temp connects Root remove, setting percentage is extremely low, i.e. the relatively low cm of toothing 35 of Fertility al-teration origin temp cuts stubble, its height for the stubble left with Ensure that sterile line ratooning rice florescence and male parent flower synchronization are standard；4) August early and middle ten dayses are mated the sterile line florescence of toothing (combo identification fit rate) with the restorer florescence, in September Just harvest it and combine F1 generation hybrid seed, while the sterile line toothing is cut into stubble；5) sterile line mid-September regenerates, and Fertility al-teration, early October, harvests the male-sterile seed.
- A kind of 2. method of two-line sterile line " one broadcasts three use " according to claim 1, it is characterised in that：The fertility choosing Selecting discriminating needs the transformation origin temp of required two-line sterile line kind compared with parent control, selects the kind fertility to turn The sensitive fertility period changed.
- A kind of 3. method of two-line sterile line " one broadcasts three use " according to claim 1, it is characterised in that：Two system is not Educate is that the kind time of infertility each growing process goes through associating for phase and eco environment facto, it is necessary to which it is small that local field is recorded in detailed observation Weather or with meteorological department's cooperation statistical analysis.
- A kind of 4. method of two-line sterile line " one broadcasts three use " according to claim 1, it is characterised in that：Two system is not Educate be kind sowing date determination must take into full account it is extensive with the adjustment of the restorer growing process of its combo or interval sowing Multiple system.
- A kind of 5. method of two-line sterile line " one broadcasts three use " according to claim 1, it is characterised in that：The toothing is high Degree is needed to be calculated according to Leaf-Age-Model and two-line sterile line is cut after stubble after the weather forecast comprehensive analysis of regenerative growth stage of development It is determined that or carry out " gradient " cut stubble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631317.9A CN107567990A (en) | 2017-07-28 | 2017-07-28 | A kind of method of two-line sterile line " one broadcasts three use " |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631317.9A CN107567990A (en) | 2017-07-28 | 2017-07-28 | A kind of method of two-line sterile line " one broadcasts three use " |
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| CN107567990A true CN107567990A (en) | 2018-01-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405809A (en) * | 2011-08-17 | 2012-04-11 | 江西现代种业有限责任公司 | Etiolated two-line sterile line breeding method and use thereof |
| CN104160949A (en) * | 2014-08-14 | 2014-11-26 | 淮南市种子公司 | Method for breeding hybrid rice Kaiyou 18 |
| CN104186304A (en) * | 2014-08-14 | 2014-12-10 | 淮南市种子公司 | Breeding method of hybrid rice Kaixiangyou No.3 |
| CN105075848A (en) * | 2015-08-07 | 2015-11-25 | 安徽省农业科学院水稻研究所 | Hybrid rice breeding method |
| CN105104167A (en) * | 2015-08-07 | 2015-12-02 | 安徽省农业科学院水稻研究所 | Breeding method for hybrid rice |
-
2017
- 2017-07-28 CN CN201710631317.9A patent/CN107567990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102405809A (en) * | 2011-08-17 | 2012-04-11 | 江西现代种业有限责任公司 | Etiolated two-line sterile line breeding method and use thereof |
| CN104160949A (en) * | 2014-08-14 | 2014-11-26 | 淮南市种子公司 | Method for breeding hybrid rice Kaiyou 18 |
| CN104186304A (en) * | 2014-08-14 | 2014-12-10 | 淮南市种子公司 | Breeding method of hybrid rice Kaixiangyou No.3 |
| CN105075848A (en) * | 2015-08-07 | 2015-11-25 | 安徽省农业科学院水稻研究所 | Hybrid rice breeding method |
| CN105104167A (en) * | 2015-08-07 | 2015-12-02 | 安徽省农业科学院水稻研究所 | Breeding method for hybrid rice |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |
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| RJ01 | Rejection of invention patent application after publication |