CN103461111A - Breeding method for high-cold-resistance rice - Google Patents
Breeding method for high-cold-resistance rice Download PDFInfo
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- CN103461111A CN103461111A CN2013104496251A CN201310449625A CN103461111A CN 103461111 A CN103461111 A CN 103461111A CN 2013104496251 A CN2013104496251 A CN 2013104496251A CN 201310449625 A CN201310449625 A CN 201310449625A CN 103461111 A CN103461111 A CN 103461111A
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Abstract
The invention discloses a breeding method for high-cold-resistance rice. According to the breeding method, the characteristics of the high over-wintering ability and the high cold resistance of wild rice are utilized, and an existing main variety in the market is utilized for being hybridized with the wild rice, so that rice with the high over-wintering ability and the high cold resistance is bred. Adopting the rice bred by the method is an important way of increasing the yield of the rice in the north and rice areas of high elevation. The new rice product with the high cold resistance is bred, so that influence of the continuous lower temperature during the heading period of July and August can be avoided, and the grain loss due to the fact that the low temperature influences the maturing rate can be prevented. The time for planting and transplanting the rice can be prolonged, the rice can ear and mature normally even in the middle and the last ten-day of September, the time for planting the rice can be postponed properly, and planting of one year can not be influenced by harvest of late mature wheat and rape.
Description
Technical field
The present invention relates to the selection of a kind of high cold resistance paddy rice, understand specifically by market, promoting mainly kind and self-sown rice hybridization, select the method for strong, the high cold resistance paddy rice of the ability of surviving the winter.
Background technology
Self-sown rice, also have the expert to be referred to as " Weedy Rice " ", " red rice rice ", ", this " red rice rice " gives people's maximum impression is heading morning, easy shattering, yield level is low, poor quality, and seed overwintering power is strong, and the Second Year seed germination rate is high, grow vigorous, affect the growth of field cultivation rice.This paddy rice has generation on Yangzhou, Jiangsu Province, Lianyun Harbour, Huaian, Yancheng, Taizhou, Nantong, Zhenjiang, Xuzhou and other places in recent years, and the direct sowing rice field occurrence and harm is especially heavy, and the heaviest field " red rice rice " proportion reaches 90%.
Summary of the invention
The object of the present invention is to provide the selection of a kind of high cold resistance paddy rice, by existing kind and the self-sown rice hybridization promoted mainly on market, select the method for strong, the high cold resistance paddy rice of the ability of surviving the winter.
In order to realize technical purpose of the present invention, technical scheme of the present invention is:
(1) the raw-material collection of self-sown rice, classification;
(2) Evaluation of Cold Tolerance of self-sown rice test: the seed next year late sowing of gathering in the crops last year, cultivation late, it is eared under lower temperature in the fall, observe its heading situation and examine or check its ripening rate height, be chosen in after Evaluation of Cold Tolerance test and can normally ear solidly under low temperature 20-22 ℃ condition, the high self-sown rice of ripening rate is as parent material;
(3) take and promote mainly kind as maternal on market, the best self-sown rice of the resulting cold resistance in step (2) of usining, as male parent, hybridizes acquisition F by female parent and male parent
1; Again with F
1for female parent, take and promote mainly kind as the male parent CF that backcrosses to obtain on market
1;
(4) plantation seed CF
1selfing obtains CF
2, CF
2seed next year late sowing, cultivation late, ear it in the fall under lower temperature, observe its heading situation and examine or check its ripening rate height, in conjunction with economical character and after the Evaluation of Cold Tolerance test, selects the good individual plant CF of cold resistance
3;
(5) plantation CF
3cold-resistant strain, when booting stage, the sword-like leave pillow was apart from 2-5cm, carry out the cultured in vitro of monoploid flower pesticide, the fast and stable strain;
(6) stable strain obtained in step (5) is carried out to the Evaluation of Cold Tolerance test.
In step (1), search out self-sown rice large Tanaka and will transplant out seedling stage, so that the raw-material management of self-sown rice, collection, classification.Self-sown rice is " Weedy Rice " in rice field, but it has distinctive advantages characteristic, as strong as seed overwintering power, the Second Year seed germination rate is high, and it is vigorous to grow, utilize these characteristic transformed can select the new rice variety that overwintering power is strong, cold resistance is strong, regeneration capacity is strong (being).
In step (2) and step (4), the temperature when Evaluation of Cold Tolerance test will be guaranteed to ear is lower than 22 ℃.
Temperature when the Evaluation of Cold Tolerance test will be guaranteed to ear is 20-22 ℃.
In step (6), the seed selection standard of high cold resistance paddy rice is, breeding time is comparatively moderate, plant height 80 ~ 1 10 centimetre, and effectively, more than fringe 10 fringes, every fringe is more than 90, and more than ripening rate 80 %, growth potential is in medium above level.
Compared with prior art, beneficial effect of the present invention is:
1. the long-term temperature in the north and high altitude localities is on the low side, and Rice Production is subject to the impact of damaging to plants caused by sudden drop in temperature of frequent generation.The rice varieties that seed selection cold resistance is strong (being), be to address this problem, improve the north and in the important channel of high height above sea level rice district rice yield.
2. select the paddy rice new product (being) that cold resistance is stronger, can avoid 7-8 to continue to run into the impact of low temperature heading stage in month, avoid the low temperature effect ripening rate and cause the loss of grain.
3. can widen sowing, transplanting time, due in 9 months, the last ten-days period also can normally ear solid, suitably the Postpone sowing time, can not be subject to the results of slow ripe wheat and rape to affect the plantation of a year.
The accompanying drawing explanation
Fig. 1 is breeding flow chart of the present invention.
Embodiment
Further illustrate breeding method of the present invention below in conjunction with accompanying drawing 1:
(1) the raw-material collection of self-sown rice, classification:
The 7-8 month in 2006, find self-sown rice in farmland, concentrated transplanting together, when ripe according to the leaf state of the strain of self-sown rice the sowing of being classified.Collect altogether 23 parts of self-sown rice resources, mainly be divided three classes according to its proterties: 12 parts, short grain type (round-grained rice partially), 6 parts, long grain type (Xian partially), 5 parts of osculants (falling between, approximate round-grained rice type restorer).
(2) Evaluation of Cold Tolerance of self-sown rice test: the seed interval sowing that will gather in the crops last year in 2007, respectively in June 15, June 30, July 15, sowing on July 30, the situation that meets with low temperature for it is carried out the cold resistance evaluation, receipts are selected the above self-sown rice of ripening rate 80 %, wherein in 23 parts of self-sown rice resources, meet with the low temperature ripening rate the highest be 89.3 %, the tentative self-sown rice of self-sown rice 19(osculant by name).
In (3) 2008 year spring, be for No. 10 maternal Hainan Yi Zhen rice, and the best self-sown rice 19 of the cold resistance of usining, as male parent, hybridizes acquisition F by female parent and male parent
1; In August, 2008, then with F
1for female parent, take and promote mainly kind town rice No. 10 as the male parent CF that backcrosses to obtain on market
1.
(4) 2009 year spring in year, at Hainan plantation CF
1selfing obtains CF
2; Within 2009, return continent, CF
2seed late sowing, cultivation late, make its lower heading of lower temperature (20 ~ 22 ℃) in the fall, observes its heading situation and examine or check its ripening rate height, in conjunction with economical character, selects the good individual plant CF of cold resistance
3.
In May, (5) 2010, plantation CF
3cold-resistant strain, when booting stage, the sword-like leave pillow was apart from 2-5cm, carry out the cultured in vitro of monoploid flower pesticide, the fast and stable strain.
(6) 2011 years, Hua Peimiao is carried out to the Evaluation of Cold Tolerance test.The seed selection standard: moderate growth duration, plant height 80 ~ 1 10 centimetre, effectively, more than fringe 10 fringes, every fringe is more than 90, and more than ripening rate 80 %, growth potential is in medium above level.Through seed selection, find altogether 12 parts of high cold resistance materials that meet above-mentioned standard.
(7) 2012 years, work as the Evaluation of Cold Tolerance of material selection in Heilungkiang and test, in elected 12 parts of materials, there are 4 parts of material per mu yields to reach more than 550 kilograms, the 400-450 kilogram of far super local main breed.
Claims (5)
1. the selection of a high cold resistance paddy rice, is characterized in that, comprises the following steps:
(1) the raw-material collection of self-sown rice, classification;
(2) Evaluation of Cold Tolerance of self-sown rice test: the seed next year late sowing of gathering in the crops last year, cultivation late, it is eared under lower temperature in the fall, observe its heading situation and examine or check its ripening rate height, be chosen in after Evaluation of Cold Tolerance test and can normally ear solidly under low temperature 20-22 ℃ condition, the high self-sown rice of ripening rate is as parent material;
(3) take and promote mainly kind as maternal on market, the best self-sown rice of the resulting cold resistance in step (2) of usining, as male parent, hybridizes acquisition F by female parent and male parent
1; Again with F
1for female parent, take and promote mainly kind as the male parent CF that backcrosses to obtain on market
1;
(4) plantation seed CF
1selfing obtains CF
2, CF
2seed next year late sowing, cultivation late, ear it in the fall under lower temperature, observe its heading situation and examine or check its ripening rate height, in conjunction with economical character and after the Evaluation of Cold Tolerance test, selects the good individual plant CF of cold resistance
3;
(5) plantation CF
3cold-resistant strain, when booting stage, the sword-like leave pillow was apart from 2-5cm, carry out the cultured in vitro of monoploid flower pesticide, the fast and stable strain;
(6) stable strain obtained in step (5) is carried out to the Evaluation of Cold Tolerance test.
2. the selection of a kind of high cold resistance paddy rice according to claim 1 is characterized in that: in step (1), search out self-sown rice large Tanaka and will transplant out seedling stage, so that the raw-material management of self-sown rice, collection, classification.
3. the selection of a kind of high cold resistance paddy rice according to claim 1 is characterized in that: in step (2) and step (4), the temperature when Evaluation of Cold Tolerance test will be guaranteed to ear is lower than 22 ℃.
4. the selection of a kind of high cold resistance paddy rice according to claim 3 is characterized in that: the temperature when Evaluation of Cold Tolerance test will be guaranteed to ear is 20-22 ℃.
5. the selection of a kind of high cold resistance paddy rice according to claim 1, it is characterized in that: in step (6), the seed selection standard of high cold resistance paddy rice is, breeding time is comparatively moderate, plant height 80 ~ 1 10 centimetre, effectively, more than fringe 10 fringes, every fringe is more than 90, more than ripening rate 80 %, growth potential is in medium above level.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106417001A (en) * | 2016-09-28 | 2017-02-22 | 云南省农业科学院生物技术与种质资源研究所 | Breeding method of Indica rice variety resistant to cold in booting and flowering stages |
| CN107333642A (en) * | 2017-06-30 | 2017-11-10 | 重庆师范大学 | A kind of molecular breeding method of cold resistant paddy rice |
| CN108260523A (en) * | 2018-01-24 | 2018-07-10 | 安徽天勤农业科技有限公司 | A kind of method for breeding wheat |
Citations (3)
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|---|---|---|---|---|
| CN1159879A (en) * | 1997-01-17 | 1997-09-24 | 四川省农业科学院水稻高粱研究所 | Technique for breeding of hybridized rice |
| CN1411701A (en) * | 2002-11-21 | 2003-04-23 | 江西省农业科学院水稻研究所 | Screening method for breeding strong cold-resisting new rice variety |
| CN1836497A (en) * | 2005-07-18 | 2006-09-27 | 湖南杂交水稻研究中心 | Widely-adaptive hybrid rice selection and breeding method |
-
2013
- 2013-09-27 CN CN201310449625.1A patent/CN103461111B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159879A (en) * | 1997-01-17 | 1997-09-24 | 四川省农业科学院水稻高粱研究所 | Technique for breeding of hybridized rice |
| CN1411701A (en) * | 2002-11-21 | 2003-04-23 | 江西省农业科学院水稻研究所 | Screening method for breeding strong cold-resisting new rice variety |
| CN1836497A (en) * | 2005-07-18 | 2006-09-27 | 湖南杂交水稻研究中心 | Widely-adaptive hybrid rice selection and breeding method |
Non-Patent Citations (3)
| Title |
|---|
| 胡春明等: "水稻新品种镇稻10 号的丰产稳产性及其利用", 《安徽农业科学》 * |
| 葛胜娟: "水稻花药培养及其在遗传育种上的应用", 《种子》 * |
| 高男等: "北方杂草稻耐低温发芽特性的初步研究", 《中国稻米》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106417001A (en) * | 2016-09-28 | 2017-02-22 | 云南省农业科学院生物技术与种质资源研究所 | Breeding method of Indica rice variety resistant to cold in booting and flowering stages |
| CN106417001B (en) * | 2016-09-28 | 2018-10-23 | 云南省农业科学院生物技术与种质资源研究所 | A kind of selection of cold tolerance at booting and flowering stage indica rice variety |
| CN107333642A (en) * | 2017-06-30 | 2017-11-10 | 重庆师范大学 | A kind of molecular breeding method of cold resistant paddy rice |
| CN108260523A (en) * | 2018-01-24 | 2018-07-10 | 安徽天勤农业科技有限公司 | A kind of method for breeding wheat |
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| CN103461111B (en) | 2015-07-22 |
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