Method for quickly breeding new aromatic rice variety

Abstract

A method for quickly breeding a new aromatic rice variety includes the following steps: (1) parent selection; (2) sexual hybridization and seed harvest; (3) hybrid seed growing and harvest; (4) seeding and sampling; (5) leaf aroma testing; (6) selective growing and seed harvest; (7) finalization; (8) seed aroma testing. When the method is utilized to breed the new aromatic rice variety, the breeding time is short, the success rate is high, and the aroma segregation of the rice is little; and in addition, the method is easy to operate, the workload is less, the new aromatic rice variety can be predictably and directionally bred, moreover, the purity of the obtained variety is high, and the breeding effect can be greatly enhanced.

Description

technical field

[0001] The invention relates to a method for rapidly cultivating new varieties of fragrant rice. Background technique

[0002] Fragrant rice is a precious functional rice and special rice with natural fragrance. It is favored by consumers because of its good eating quality, nutrition and health care, and high economic value. At present, the price of fragrant rice in the domestic and foreign rice markets is much higher than that of ordinary rice, which has good economic and social benefits. Therefore, research on functional rice represented by aromatic rice has become a hot spot in current rice research. But the general breeding method of the existing fragrant rice new varieties adopts the method of conventional crossbreeding, and its cultivation time is very long, and the success rate is low, and the obtained rice aroma is separated greatly. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a metho...

Examples

specific Embodiment approach

[0018] (1) Parent selection: the female parent was selected from the aromatic rice variety "Nongxiang 99", and the male parent was selected from the aromatic rice variety "Xiangwanxian 10";

[0019] (2) Sexual hybridization and harvesting: plant 10 plants of the selected parent plants, and use the "rice sexual hybridization technology" for hybridization at the flowering stage, and harvest 25 hybrids;

[0020] (3) Planting hybrids (F1) and harvesting: After sowing, 20 hybrids were planted in a single plant, and the plant height, total grain number per panicle, seed setting rate, and thousand-grain weight were recorded, and the yield, rice quality, and seed setting rate were recorded. 20-30 seeds per panicle are harvested for plants with better performance in terms of plant type and plant type, and a total of 4200 seeds are harvested;

[0021] (4) Sowing (F2) and sampling: Sow all the seeds obtained in step (3), and when the seedling age reaches 26 days, pull out the individual ...

technical field

[0001] The invention relates to a method for rapidly cultivating new varieties of fragrant rice. Background technique

[0002] Fragrant rice is a precious functional rice and special rice with natural fragrance. It is favored by consumers because of its good eating quality, nutrition and health care, and high economic value. At present, the price of fragrant rice in the domestic and foreign rice markets is much higher than that of ordinary rice, which has good economic and social benefits. Therefore, research on functional rice represented by aromatic rice has become a hot spot in current rice research. But the general breeding method of the existing fragrant rice new varieties adopts the method of conventional crossbreeding, and its cultivation time is very long, and the success rate is low, and the obtained rice aroma is separated greatly. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a metho...

Examples

specific Embodiment approach

[0018] (1) Parent selection: the female parent was selected from the aromatic rice variety "Nongxiang 99", and the male parent was selected from the aromatic rice variety "Xiangwanxian 10";

[0019] (2) Sexual hybridization and harvesting: plant 10 plants of the selected parent plants, and use the "rice sexual hybridization technology" for hybridization at the flowering stage, and harvest 25 hybrids;

[0020] (3) Planting hybrids (F1) and harvesting: After sowing, 20 hybrids were planted in a single plant, and the plant height, total grain number per panicle, seed setting rate, and thousand-grain weight were recorded, and the yield, rice quality, and seed setting rate were recorded. 20-30 seeds per panicle are harvested for plants with better performance in terms of plant type and plant type, and a total of 4200 seeds are harvested;

[0021] (4) Sowing (F2) and sampling: Sow all the seeds obtained in step (3), and when the seedling age reaches 26 days, pull out the individual ...