%0 Journal Article %A LIU Lu-xiang GUO Hui-jun ZHAO Lin-shu GU Jia-yu ZHAO Shi-rong (Institute of Crop Science %A Chinese Academy of Agricultural Sciences/ The National Key Facility for Crop Gene Resources and Genetic Improvement %A Beijing 100081) %T ACHIEVEMENTS IN THE PAST TWENTY YEARS AND PERSPECTIVE OUTLOOK OF CROP SPACE BREEDING IN CHINA %D 2007 %R 10.11869/hnxb.2007.06.0589 %J Journal of Nuclear Agricultural Sciences %P 589-592+601 %V 21 %N 06 %X

Space breeding is a novel effective approach to crop mutational improvement,which was firstly founded by the chinese scientists in 1987.A national collaborative research network has been established and significant achievements have been made during the past twenty years.More than forty new mutant varieties derived from space mutagenesis in rice,wheat,cotton,sweet pepper,tomato,sesame and alfalfa have been developed,officially released and put into production.A series of useful rare mutant germplasms which might make a great breakthrough in crop grain yield and/or quality improvement have been obtained.Technique innovations in space breeding and ground simulation of space environmental factors have been made good progresses.Intellective property right protection and industrialization of space mutation techniques and mutant varieties,exploration of the mechanism of space mutation induction have also been stably advanced.In this paper,the main achievements of crop space breeding in the past twenty years had been reviewed.The perspective development strategies of space breeding were also discussed.

%U https://www.hnxb.org.cn/EN/10.11869/hnxb.2007.06.0589