Dai Song: Stand at the forefront of scientific and technological development

Zhang Yulan and Dai Songn: "Jinghong 1" Spring Wheat Monolith System", "China Agricultural Science" 1981 No. 3Agricultural Science and Technology Newsletter, No. 1 of 1980, publishes photographs and articles of Dai Songen's study of wheat non-wholesomes.Manuscripts and Lead Prints of "Non-Wholesomes of Ordinary Wheat" translated by Dai Songn (February 1980)India, is the earliest translation of wheat non-wholeplate research works seen in China, for the domestic wheat non-whole multiplier research scholars provide important reference materials, many scholars from which to be inspired to make new research results, such as Li Zhensheng academician's research was inspired by this translation.
Since July 2015, we have collected 1043 physical data on the academic growth of academician Dai Songn, of which 19 related to the study of wheat non-rectity, including manuscripts, works, translations, academic exchange letters, etc., on the significance of the establishment of the research project, the technical route, the progress of research over the years and the progress of the phased achievements, etc., are valuable historical materials. These historical materials support the academic activities of This period of Dai Song's history, and document His tireless and tireless work for the development of cytogenetics and agricultural science, reflecting His hard work, courage, courage, perseverance and belief. Wheat non-wholesome research is forward-looking and pioneering work, at that time is a certain challenge and arduous. Deson is at the forefront of technological development and dares to undertake this research task.wheat non-whole multiplium is formed by the non-whole multiplied change of wheat chromosome, and is the wheat species resource whose number deviates from its complete base. Wheat non-wholesomes have important utilization value in wheat genetic analysis, wheat evolution research and wheat breeding. International wheat non-wholesome research began in the 1930s and 1950s, after the American scholar E.R. Sears created a full set of "Chinese spring" wheat non-wholesome materials, there has been great development.
September 1973, the Winnipeg Test Station in Canada presented a set of "Chinese Spring" wheat monoliths to the Chinese agricultural science delegation, which was brought home by Fang Yannon, Li Jingxiong and others. In 1974, Dai Songen took the lead in conducting the study of wheat non-whole multiplied in China by using this set of "Chinese Spring" wheat monolithic materials. Dai Songen pointed out that the main purpose of wheat non-wholesome research is to "use wheat non-wholesome system materials and chromosome technology to carry out basic theoretical research on wheat, reveal its laws, and explore new ways of breeding."
beginning in 1974, Dai Songen led Zhang Yulan, Du Wei and other members of the task force, using the "Chinese Spring" monolith system introduced from Canada in 1973, from the Institute of Genetics of the Chinese Academy of Sciences in 1978 and northwest The "Chinese Spring" bicess system introduced by the Plant Research Institute, as well as the "Jinghong 1" spring wheat provided by the Spring Wheat Room of the Crop Breeding and Cultivation Research Institute, have become the "Jinghong 1" spring wheat monolith system after 7 consecutive years of experiments and research.
"Jinghong 1" wheat monolithic system, is China's agricultural scientists independent research and transfer success of the first wheat monolithic system, is China's wheat non-whole multiplier research a major breakthrough, for the further use of its research gene positioning and the creation of wheat varieties replacement system laid a foundation, is conducive to revealing the law of wheat genetics and explore new wheat breeding methods. Dai Songen's research group also put forward the method and identification standard of the identification monolith system, and revealed the reasons for the "unit price change" problem in the process of trans-breeding, which provided a useful reference for other scholars to carry out wheat non-whole multipliers research. In 1984, "The breeding and identification of the spring wheat monolith system of 'Jinghong 1' won the first prize of the Technical Improvement Award of the Ministry of Agriculture, Livestock and Fisheries."the study of wheat non-wholesome belongs to the basic theoretical research, there are different views on this research in China at that time. Some people think that we should concentrate on the actual problems of agricultural production at that time, some people think that this is a heavy theoretical study, the results are slow, the results cycle is long, and some people think that breeding is to cultivate new varieties, this kind of theoretical research can be put aside.
after five years of research on wheat non-wholesomes, Dai Songen et al. published the article "Why study wheat non-wholesomes" in the first issue of agricultural science and technology newsletter in 1980, in response to people's misunderstandings and discussions. In this article, Dai Songn first introduced the foreign use of wheat non-wholesome research progress and achievements in wheat genetics, wheat system development, wheat breeding, through a comprehensive analysis of these research contents and results, Dai Songn said: "Looking forward to the future of wheat non-wholesome research, there is certainly a great prospect for development." It can quickly and systematically understand the genetic law of various characteristics of wheat and its chromosomes and the chromosomes in the near plant part of the ogenosity, so as to more systematically select and breed a variety of special excellent new varieties of wheat. Therefore, in order to achieve rapid development in wheat breeding, it is not common to carry out non-integral study in order to make wheat breeding technology rise to wheat breeding science. At the same time, Dai Songen also pointed out that wheat non-whole multiplied research "heavy workload, long time, must be clear direction, adhere to, in order to be successful." Today's efforts to establish the foundation, is for the future wheat breeding work of the great development. As a result, Deson said, "it is necessary to arrange a certain number of institutions and a certain amount of manpower to carry out this research, as a national plan, long-term adherence."
in order to enable domestic scholars to better understand and carry out wheat non-wholesome research work, Dai songn translated the 1954 study of the American scholar E.R. Sears, The Aneuploids of Wheat Common, a report It is the result of E.R. Sears' 15 consecutive years of wheat non-integral multipliation research, which introduces the whole set of non-integral multipliers (e.g. monosomes, defects, trisomes, four bodies, and silk-dot chromosomes and so on) of the "Chinese Spring" wheat varieties. arm chromosome system, etc.), describes the source of monomorphic and trisomy malformations, describes three non-integrated multipliers without groups in seven parts of the congener chromosome group, identifies the morphology of chromosomes, observes and records monomorphisms, and lacks The breeding behavior of the whole body, three body and four body describes the chromosomes with silk point chromosomes and isomehials, as well as their origin and breeding behavior, records some non-whole multiplied inlays, and points out the direction of wheat genetic research and breeding research.
In February 1980, the lead print of the Institute of Science and Technology Information of the Chinese Academy of Agricultural Sciences was the earliest translated work of wheat non-whole multipliation in China, which provided important reference materials for the scholars who carried out the research of wheat non-wholesome in China, from which many scholars were inspired to make new research results.
Li Zhensheng academician thinks that he was inspired by Dai Songen's translation, introduced the "Chinese spring monolith system", produced the idea of establishing a new "blue grain monolith wheat system", after many years of experiments and research, finally obtained not only the blue grain monolith wheat system, but also obtained the self-flowering solid lack of wheat system, and established the missing body re-breeding method, and explored a new way to shorten the long-term hybrid breeding time.In order to further promote the development of wheat non-remnome research in China, with the efforts of Dai Songen, from March 8 to 12, 1980, 34 representatives of 14 institutions of higher learning and 12 scientific research units held the "First Symposium on the Study of Wheat Non-wholem" in Beijing.
, who was then Deputy Secretary-General of the Chinese Academy of Agricultural Sciences, presided over the symposium and delivered a speech entitled "On the study of wheat non-wholesomes". In his speech, Dai Songen first listed the different views on wheat non-wholesome research at that time, pointed out that there are differences in the study of wheat non-wholesomes in China, an important purpose of holding this symposium is to exchange research experience on the basis of unified understanding, and clear the next 20 years of research ideas and 5 to 10 years of research projects.
Dai songn proposed that the future wheat non-wholesome research includes wheat genetics, evolution or system development and breeding three aspects. Then Dai Songen from the theory and practice of wheat non-whole multiplier research prospect, he believes that in theory, one is from the perspective of wheat species, the use of differences in wheat species to produce a large number of inter-variety intergenerational system, mainly to study the influence of wheat quantitative characteristics of genes and their interactions; In practice, Dai Songen pointed out that according to monosome analysis and gene analysis of inter-species intergenerational intergenerational system, it can guide the generation of inter-species hybrid breeding, inter-species intergenerational intergenerational and heterogeneic intergenerational system.
Finally, Dai Songn believes that the research of wheat non-whole multiplied in China should carry out a lot of cytological work in the early stage, carry out a lot of genetic work in the later stage, first produce our country's monosomy and inter-species intergenerational replacement system, which is convenient for analyzing gene action, gene mutual influence and positioning, and then produce china's heterogeneous chromosomal replacement system and exchange system. China's scientific research units need to work together through division of labor and collaboration to promote the further development of wheat non-whole multiplier research.
"National Wheat Non-wholesome Research First Symposium" is the first national wheat non-wholesome research conference held under the strong promotion of Dai Songen. Prior to this, most domestic scholars also referred to the study as "monopolysis research", at which Dayson proposed a unified revision to "wheat non-integral multiplium research", and was recognized by the participants.
Through this meeting, the name of the wheat non-wholesome research topic was standardized, the relevant scholars' understanding of wheat non-wholesome research was unified, the basic direction and task of future research were clarified, and the necessity and arduousness of wheat non-wholesome research were also understood, which pointed out the direction for the relevant scholars and research institutions to carry out research in a focused and selective manner, and promoted the orderly development of wheat non-wholesome research in the whole country. After the
symposium, the Chinese Academy of Agricultural Sciences sent the minutes of the meeting to the relevant provincial academy of agricultural sciences, and reported to the Ministry of Agriculture to forward the relevant provincial science and technology bureau and education bureau, while copying the State Science and Technology Commission to forward the relevant provincial science and technology committee, which at that time to promote wheat non-wholesome research work in the relevant institutions of higher learning and the relevant provincial academy of agricultural sciences arrangements to implement, for funding and personnel support, creating a good atmosphere.
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