CN1042089C - Cross-breeding method of indica rice with japonica rice - Google Patents
Cross-breeding method of indica rice with japonica rice Download PDFInfo
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- CN1042089C CN1042089C CN 94111974 CN94111974A CN1042089C CN 1042089 C CN1042089 C CN 1042089C CN 94111974 CN94111974 CN 94111974 CN 94111974 A CN94111974 A CN 94111974A CN 1042089 C CN1042089 C CN 1042089C
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Abstract
The present invention relates to a seed production method for the hybrid rice of hsien rice and japonica rice. Rice varieties are prepared and hybridized in a mode that a hsien type sterile line is used as a female parent, and a japonica type restoring line is used as a male parent. The japonica type restoring line uses derivation brother system varieties 90-15, 91-4, 92-250, 93-1, etc., which has the advantages of wide affinity, high recovery degree and strong heritability. The present invention solves the problem of strong advantage heredity of the japonica rice of the male parent and reconstructs a strain leaf type of a japonica male parent, so a male parent and a female parent has the advantages of good flower time encounter, easy operation and high seed production yield. A hybridization generation has the characteristics of short and strong haulm, tillering ability, strong regenerative capacity, early heading stage, large ears, many grains, thick grains, etc., appearance and eating quality are both superior to shanyou 63, and yield increases more than 40 %.
Description
The present invention relates to the producing method for seed of the Indica-Japonica Hybrid Rice of a kind of producing method for seed of hybrid rice, particularly subspecies.
The intervarietal cross combination that the hybrid rice that uses belongs to indica type or round-grained rice type is gone up in production at present, though more conventional rice has very big volume increase advantage, because of being subjected to kind of the limitation of interior germ plasm resource, yield potential is subjected to certain restriction.Heterosis, hybrid vigor between indica and japonica subspecies then can be broken through this limitation, brings higher yield increase effect.Because the inter-subspecies hybrid production of hybrid seeds is very difficult, still nobody obtains gratifying effect in this research so far.In the prior art, the Indica-Japonica Hybrid Rice 02428 as " rice in China science " seven volume fourth phases publish adopts chemical emasculation, again with the indica type variety hybrid seeding.Though it has wide affinity, existing indica cms line there is not restoring force, can only leaning on castrate the production of hybrid seeds extremely, can not utilize existing numerous sterile lines seed makings, and F1 plant height leaf is big, influences the raising of output, promote difficulty.In addition, the round-grained rice type that once disclosed a kind of being called " samsara 422 " on the magazine of Hunan " hybrid rice " recovers system, has wide affinity and stable recovery capability, but does not have the prepotency of japonica rice, does not have the benefit of early growth and quick tiller and the big fringe high yield of short bar narrow leaf.CN1058129A has disclosed a kind of two system method crossbreeding technology for long-grained nonglutinous rice subspecised, and this method realizes by two step bridge formation methods: first step bridge formation method seed selection Xian sensitization sensitive sterile system; Second step bridge formation method seed selection Xian round-grained rice congenial restoring line.Its breeding difficulty is big, and poor stability is difficult for large tracts of land and promotes.
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part and a kind of strong Indica-Japonica Hybrid Rice producing method for seed of wide affinity, high restoring degree and round-grained rice type heritability that has is provided.
Purpose of the present invention can be achieved through the following technical solutions:
The producing method for seed of this Indica-Japonica Hybrid Rice, its technical characterstic are to make female parent with indica cms line, and the round-grained rice type recovers system and makes male parent preparing hybrid seed rice; And it is that 90-15,91-4,91-14,92-250,92-280,93-1,58-41, I-36 etc. have the strong derivative brother line kind of wide affinity, high restoring degree and round-grained rice sex inheritance power that the round-grained rice type recovers.Because female parent is bloomed and is bloomed early than male parent, make the pollination rate height that met when colored, the hybrid seed yield height again can one be planted two-system.The round-grained rice type recovers the derivative brother line kinds such as 90-15 that system adopts the time-consuming four more than ten years development of inventor.
The invention solves the problem of the strong superiority inheritance of male parent japonica rice, again modernization overlay round-grained rice father's plant and leaf shape, it is special good, easy to operate to meet when making father's flower of female parent, the hybrid seed yield height.Through experiment and demonstration, the hybrid rice that this Indica-Japonica Hybrid Rice producing method for seed is cultivated and have following advantage:
1, cane short strong, short narrow, the disease-resistant lodging resistant force of sword-like leave is strong.The about 100cm of plant height is than the short about 20cm of Shanyou 63.
2, prosperous, tillering ability of growth potential and regeneration power are strong.Can early growth and quick tiller, the weather that cools in early spring and late fall there is adaptability preferably, can increase effective breeding time of paddy rice, fringe is big, grain is many, it is close.
3, the generation kind of and 91-4 male parent preparation maternal by II-32A can be avoided the high temperature dry season weather in STRUCTURES IN EAST SICHUAN area Zao 6 days than Shanyou 63 its heading stage, season stable yield, help the cultivation of ratoon rice again.
4, outward appearance and food flavor quality all are better than Shanyou 63, and about 750 kilograms of average yield per mus, volume increase be more than 46%, also have again one season the high yield ratoon rice.Milled rice rate is more than 70%.
5, the round-grained rice type recover be 91-4 and 93-1 respectively than Zao 6 days and 14 days bright extensive 63 heading stages, meet wide adaptability when cold-hartliness is strong, colored.
The present invention is except that father and mother's basis, and other can be made of conventional producing method for seed.This preparation of father and mother combination can be adopted following example:
1, maternal Zhenshan 97a * 91-4 round-grained rice type male parent.
2, maternal D Shan A * 91-4 round-grained rice type male parent.
3, maternal excellent I A * 91-4 round-grained rice type male parent.
4, maternal II-32 * 91-4 round-grained rice type male parent.
Claims (1)
1, a kind of producing method for seed of Indica-Japonica Hybrid Rice is characterized in that making female parent with indica cms line, and the round-grained rice type recovers system and makes male parent preparing hybrid seed rice; And it is that 90-15,91-4,91-14,92-250,92-280,93-1,58-41, I-36 have the strong derivative brother line kind of wide affinity, high restoring degree and round-grained rice sex inheritance power that the round-grained rice type recovers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111974 CN1042089C (en) | 1994-11-09 | 1994-11-09 | Cross-breeding method of indica rice with japonica rice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111974 CN1042089C (en) | 1994-11-09 | 1994-11-09 | Cross-breeding method of indica rice with japonica rice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1110498A CN1110498A (en) | 1995-10-25 |
| CN1042089C true CN1042089C (en) | 1999-02-17 |
Family
ID=5035794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94111974 Expired - Fee Related CN1042089C (en) | 1994-11-09 | 1994-11-09 | Cross-breeding method of indica rice with japonica rice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1042089C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1061209C (en) * | 1998-06-10 | 2001-01-31 | 江苏省农业科学院 | Method for breeding subspecies cross-breeding improved rice seed by utilizing bilinear method to cultivate the hybrid combination from two hetarosis to nine between subspecies of hybrid rice |
| CN1314315C (en) * | 2005-08-22 | 2007-05-09 | 辽宁稻作研究所 | Selective breeding method and seed preparing method for Japonica rice variety |
-
1994
- 1994-11-09 CN CN 94111974 patent/CN1042089C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1110498A (en) | 1995-10-25 |
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