Rapid breeding method for salt and alkali rice

Abstract

The invention discloses a rapid breeding method for salt and alkali rice. The method specially comprises the steps that wild seawater rice is used as a radiation induced breeding material, the breeding material is cultured through seawater, rice sprouts are radiated through the solar energy focus point in three steps, sea mud culture is performed, protogene pyramiding is performed, and the superior and stable variety fast to breed is selected. By implementing the rapid breeding method, the wild seawater rice is used as the radiation induced breeding material due to the exceptional function, and seawater and sea mud are adopted for training plants to obtain comprehensive superior plants. By the adoption of a radiation method, the percentage of seedling emergency is low, the aberration rate is high, variation produced by radiation is large, stabilizing is fast, and a stable, good and important way is provided for breeding high-quality rice seeds; meanwhile, by implementing the rapid breeding method, the novel early-maturing, medium-maturing and late-maturing rice varieties which are resistant to saline and alkaline, extensive breeding and low temperature, high in stress resistance, suitable for direct seeding and good in rice quality are cultured. A new way is opened for developing saline and alkaline land, irrigating planted rice through seawater, and obtaining employment, increasing income and seeking for profits for more people.

Description

technical field [0001] The invention relates to a new technology field of rice breeding, in particular to a fast breeding method for saline-alkali rice. technical background [0002] The total area of ​​saline-alkali land in my country is about 1.5 billion mu. If rice can be planted, based on the yield of 300 catties per mu, 450 billion catties of grain can be harvested every year. [0003] A United Nations report this year shows that global food stocks have been declining for nearly 30 years, and there are currently about 800 million hungry people in the world. If Shanghai rice can be planted on the 14.3 billion mu of saline-alkali land around the world, its "world significance" will be self-evident. [0004] In order to cope with the severe challenges of food security, the development of saline-alkali land and the use of seawater to irrigate planting have become the directions of exploration by experts from all over the world. However, it is difficult to make breakthrough...

AI Technical Summary

Problems solved by technology

[0007] However, these studies are still in the experimental stage, and although there are new varieties of salt-tolerant sea rice, they have not yet been cultivated on a large scale

[0008] The Hubei Institute of Information Research searched domestic and foreign literature on the subject of "domestication of wild rice from seawater into cultivated rice", but found no relevant reports