CN101422131A - Rice thermosensitive genie male sterile quasi S seed-production method - Google Patents
Rice thermosensitive genie male sterile quasi S seed-production method Download PDFInfo
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- CN101422131A CN101422131A CNA2007100360045A CN200710036004A CN101422131A CN 101422131 A CN101422131 A CN 101422131A CN A2007100360045 A CNA2007100360045 A CN A2007100360045A CN 200710036004 A CN200710036004 A CN 200710036004A CN 101422131 A CN101422131 A CN 101422131A
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Abstract
The invention discloses a seed producing method of paddy thermo-sensitive genic male sterile (PTGMS) quasi-S, which comprises the following steps of: (1) selection of female parents: selecting quasi-S seeds; (2) selection of bases: selecting the areas within a range of 23 to 24 degrees of north latitude which are less affected by typhoons; (3) selection of preceding crop: harvesting the preceding vegetables or corns or rice before late June; (4) florescence arrangement: after later June, the quasi-S seeds selected by the step (1) are used as female parents and Jiazao 312,Yuxiangyouzhan and Shuhui 527 and the like are used as male parents to produce the thermo-sensitive genic male sterile rice quasi-S hybrid seeds. The fertility transformation sensitive period of the quasi-S seeds are arranged in August 15th to 30th; and the pollination period is arranged in early September. The method is safe and effective; the purity of the produced hybrid seeds are more than 97 percent and even more than 98 percent, and can be used for manufacturing seeds with different male parents to product the seeds of a plurality of combinations, thus improving the yield rate of the rice and realizing yield and income increasing.
Description
Technical field
The present invention relates to a kind of safe and efficient producing method for seed of rice thermosensitive genie male sterile quasi S, belong to new variety of plant seed production method technical field.
Background technology
Paddy rice is as the whole world one of most important cereal crops in Asia area particularly, and the past 30 is for many years being obtained significant progress aspect the genetic improvement of yield traits.Nineteen ninety-five, China is obtaining success aspect the double-hybrid rice strains research, the application of putting into production of existing at present a collection of fine combination.According to national agricultural [technology service centre statistics in 2003,482.63 kilograms of two-line hybrid rice average yield per mus are compared for 437.93 kilograms with the ternary hybrid rice average yield per mu, volume increase 10.2%, but popularizing area only accounts for 7.6% of the total sowing area of paddy rice.Therefore, promote two-line hybrid rice actively and prudently, can make huge contribution for the increases in grain production of China.The situation that two-line hybrid rice faces at present is: the market demand is big on the one hand, and supply falls short of demand for seed, only had in 2004 to exceed ten million kilogram breach; And on the other hand, seed enterprise but dare not produce the sufficient seed supply the market, fears and accepts the risk, and hybrid seed yield is lower than Three-line Hybrid rice.Seeds company continues to continue to use traditional Three-line Hybrid rice production of hybrid seeds and not at the characteristics production of hybrid seeds of two-line hybrid rice, causes seed purity not high.
Summary of the invention
The technical problem to be solved in the present invention is, at the deficiency that prior art exists, proposes the producing method for seed of a kind of resistance, colory thermosensitive genie male sterile quasi S that coordinate force is strong, improves rice yield by this method preparation series of combination.
Technical solution of the present invention is that the producing method for seed of described rice thermosensitive genie male sterile quasi S is to be following step:
(1), female parent selection: select for use accurate S kind standby as female parent;
(2), the base is selected: select to be subjected to the less area of typhoon influence as the production base in 23 ° of-24 ° of scopes of north latitude;
(3), preceding electing: in step (2) previous crops vegetables or corn or the paddy rice on the production base of selecting, results before by the end of June wherein, take methods such as the waterflooding of sky field, use herbicide for paddy field, artificial removal of impurities to remove Tian Gu to the production base of previous crops paddy rice;
(4), the florescence arranges: by the end of June, above-mentioned steps (1) is selected accurate S kind to be done maternal, respectively with good early 312, beautiful sesame oil accounts for, another name for Sichuan Province is extensive 527, continuous extensive 725, Lu drought 15, middle product 49, third 4114, R106, R588, R9164, R9152, R791, R788 etc. are made male parent, hybrid rice seed breeding process is produced hybrid rice seed routinely, gets the hybrid seed of thermosensitive genie male sterile quasi S.The fertility of above-mentioned accurate S kind conversion sensitive periods, be arranged in 15-August 30 August, and the pollination phase is arranged in early September.
The invention has the beneficial effects as follows, use this method and can produce the hybrid seed of thermosensitive genie male sterile quasi S safely, efficiently, the purity of the hybrid seed of institute's output is more than 97% and even 98%, and can with the different male parent production of hybrid seeds, produce the seed product of multiple combination, improve the paddy rice output capacity with this, realize increasing both production and income.
Embodiment:
Embodiment 1,
(1), select for use accurate S seed standby as female parent;
(2), selecting 23 ° of north latitude is subjected to the less area of typhoon influence as the production base;
(3), step (2) the previous crops vegetables on the production base of selecting, before by the end of June results;
(4), by the end of June after, step (1) is selected accurate S kind does maternally, do male parent hybrid rice seed breeding process production routinely with middle product 49 seed rice, accurate two excellent 49 seeds.The fertility of accurate S kind conversion sensitive periods, be arranged in 15-August 30 August, and the pollination phase is arranged in early September.
Embodiment 2,
(1), select for use accurate S seed standby as female parent;
(2), selecting 24 ° of north latitude is subjected to the less area of typhoon influence as the production base;
(3), in step (2) the previous crops paddy rice on the production base of selecting, results before by the end of June, to this production base take the waterflooding of sky field, use herbicide for paddy field, methods such as artificial removal of impurities remove Tian Gu;
(4), by the end of June after, with step (1) select accurate S kind do maternal, with extensive 527 seed rice in another name for Sichuan Province do male parent routinely hybrid rice seed breeding process produce hybrid rice seed, accurate two excellent 527 seeds.The fertility of accurate S kind conversion sensitive periods, be arranged in 15-August 30 August, and the pollination phase is arranged in early September.
Claims (1)
1, a kind of producing method for seed of rice thermosensitive genie male sterile quasi S, this method are following step:
1, female parent selection: select for use accurate S kind standby as female parent;
2, the base is selected: select to be subjected to the less area of typhoon influence as the production base in 23 ° of-24 ° of scopes of north latitude;
3, preceding electing: select previous crops corn or paddy rice or vegetables on the production base in step 2, results before by the end of June wherein, take the waterflooding of sky field, use herbicide for paddy field, artificial removal of impurities measure to remove Tian Gu to the production base of previous crops paddy rice;
4, the florescence arranges: by the end of June, above-mentioned steps 1 is selected accurate S kind to be done maternal, respectively with good early 312, beautiful sesame oil accounts for, another name for Sichuan Province is extensive 527, continuous extensive 725, Lu drought 15, middle product 49, third 4114, R106, R588, R9164, R9152, R791, R788 etc. are made male parent, hybrid rice seed breeding process is produced hybrid rice seed routinely, get the hybrid rice seed of thermosensitive genie male sterile quasi S, the fertility of above-mentioned accurate S kind conversion sensitive periods, be arranged in 15-August 30 August, and the pollination phase is arranged in early September.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100360045A CN101422131A (en) | 2007-10-31 | 2007-10-31 | Rice thermosensitive genie male sterile quasi S seed-production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100360045A CN101422131A (en) | 2007-10-31 | 2007-10-31 | Rice thermosensitive genie male sterile quasi S seed-production method |
Publications (1)
| Publication Number | Publication Date |
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| CN101422131A true CN101422131A (en) | 2009-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100360045A Pending CN101422131A (en) | 2007-10-31 | 2007-10-31 | Rice thermosensitive genie male sterile quasi S seed-production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104663228A (en) * | 2015-03-16 | 2015-06-03 | 甘肃省农业科学院作物研究所 | Production method for core seeds and stock seeds of thermo-sensitive male sterile line 1S of flax |
| CN110199803A (en) * | 2019-06-25 | 2019-09-06 | 华南农业大学 | Two-line sterile line rice fertility converts the identification method of effective low temperature cumulative effect |
-
2007
- 2007-10-31 CN CNA2007100360045A patent/CN101422131A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104663228A (en) * | 2015-03-16 | 2015-06-03 | 甘肃省农业科学院作物研究所 | Production method for core seeds and stock seeds of thermo-sensitive male sterile line 1S of flax |
| CN104663228B (en) * | 2015-03-16 | 2016-08-03 | 甘肃省农业科学院作物研究所 | One grows flax Thermo-sensitive male sterile line 1S core seeds and the production method of original seed |
| CN110199803A (en) * | 2019-06-25 | 2019-09-06 | 华南农业大学 | Two-line sterile line rice fertility converts the identification method of effective low temperature cumulative effect |
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Open date: 20090506 |