The use of China’s unique genetic resource, “dwarf-deficit wheat,†to carry out recurrent selection breeding, allows large-scale and repeated reorganization of dozens or even thousands of parental genes, and continuously optimizes them, thereby improving the population and thus nurturing "Rounding 987" represented a batch of excellent wheat varieties with a record of 715 kg per mu. On June 10th, Dr. Qu Huqu, President of the Chinese Academy of Agricultural Sciences, announced at the scene of the “Dwarf Failing Wheat Rotation 987†observation in Shunyi County, Beijing, “The dwarf breeding wheat breeding platform created by the Chinese Academy of Agricultural Sciences can improve the efficacy by more than 100 times that of conventional wheat breeding methods. The research on the efficient breeding technology system of “dwarf-deficit wheat†was supported by projects of the Ministry of Science and Technology, the Ministry of Agriculture, the Ministry of Finance and the National Natural Science Foundation of China. Authoritative sources here stated that “this major achievement of the Chinese Academy of Agricultural Sciences for this decade’s efforts has reached the international advanced level, and in return for a revolutionary breakthrough in the study of wheat breeding technology in China.†Results The main inventor, China Academy of Agricultural Sciences Liu Binghua, a researcher at the Institute of Crop Research, explained that "dwarf defeated wheat" is not a specific species but a breeding tool. It is just like a seed processing factory and an incubator. Breeding materials can continuously create new germplasm through it and cultivate new varieties that meet different needs. Why is it called "dwarf defeat wheat"? Liu Binghua explained that this is using China’s unique resource, the Taigu Nuclear Sterile Wheat, as a material to screen a dominant dwarf gene and a male sterile gene from the hybrid offspring population. In this way, it will be able to accept pollen from any wheat cultivar, resulting in complete male abortion, stable sterility, and a high rate of outcrossing, making it an ideal tool for recurrent breeding. Due to the use of recurrent selection, various superior characteristics such as high yield, high quality, and stress resistance can be transferred to dwarf defeated wheat. Within the population, each fertility strain corresponds to a composite hybrid composition in conventional cross breeding. The probability of breeding superior varieties from the middle has increased significantly. Scientists said that the use of a technology platform for efficient breeding of dwarf wheat can greatly improve the breeding efficiency of wheat. At present, China has used the “dwarf-deficit wheat†breeding technology to breed new varieties of wheat such as “Road Selection 981â€, “Root Selection 987†and “Root Selection 201†and a number of new product lines, of which “Road Selection 987†is participating. Among the 46 species in the northern winter wheat region of the national wheat regional experiment, the output ranked first, which was an average increase of 14.8% over the main cultivars “Jing Dong 8†and “Jing 411â€. Experts believe that "Rotate 987" is expected to become a new replacement breed in the northern winter wheat region. In a thousand mu wheat field in Shunyi, Beijing, the reporter saw the golden "rotation 987" wheat waiting to be harvested. The test shows that the yield per mu will exceed 600 kg. Zuo Baohuai, head of the branch of the Beijing Fine Farm Culture Camp, which is responsible for the production of this variety, said: “Farmers like this good variety that increases production and income.†The famous genetics and breeding expert who is 90 years old and has always been demanding for new wheat varieties, Zhuang Qiaosheng, an academician of the Chinese Academy of Sciences, praised the outstanding yield potential of the “wheel selection†series of wheat varieties.
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