检索结果-南通市图书馆

第25届中国控制与决策会议

作者： Zhen-jun Guo Institute of Information and Technology Guilin University of Electronic Technology Graduate University of Chinese Academy of Sciences

ISBN: (纸本)9781467355339

On the basis of the RFID testing standards theoretical analysis,it designs a RFID system test platform based on the embeddedLinux. It carries on the design development by hardware system’s design of test platform,the software development platform construction and the application software system’s design. It designs the application software system of test platform by Qt, and gives the application software test process,it electively assess the RFID system performance. The article analyzesthe influence to the overall system performance,and carries on separately thesimulation testtothe RFID system from encoding method, CRC verification code and negative carrier modulation depth.

关键词： RFID test platform Performance test uniform test

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Pedigree analysis of nationally approved soybean cultivars from 1984 to 2013 and implications for breeding

引用

Oil Crop Science 2016年第4期1卷 30-39页

作者： Zhonglu Yang Xiaomin Guan Yanqin He Zhihui Shan Dezhen Qiu Xiaojuan Zhang Limiao Chen Chanjuan Zhang Songli Yuan Shuilian Chen Qingnan Hao Haifeng Chen Xin'an Zhou Key Laboratory of Biology and Genetic Improrement of Oil Crops Ministry of Agriculture Oil Crops Research Institute Chinese Academy of Agricultural Sciences Wuhan China National Extension and Service Center of Agricultural Technology Beijing China

To reveal origins of 316 state authorized varieties from 1984 to 2013, rules of their parentsJ selection including types and hybrid configurations of direct parents, geo-graphical sources and types of their ancestors were analyzed. Various important direct parents and ancestors were summarized and nuclear contribution of ancestors was also estimated by pedigree analysis. Among 316 registered cultivars, 298 （94.3%） were bred by hybridization, and most of their direct parents were cultivars or breeding lines （65.5%）. Cultivars and breeding lines were mostly used as female parents, with 53.0% and 38.7% respectively. The 316 released cultivars were traced to 373 final ancestors, mainly com-posed of landraces （55.5%） and breeding lines （36.7%）. The 373 final ancestors came from different regions, including 121 from northern area, 110 from Huang-Huai-Hai area, 53 from southern area and 76 from abroad. These ancestors were mainly from the same ecologic zone as the approved cultivars. Newly approved cultivars always have more ancestors and a broader genetic base. However, distribution of these ancestors was unbalanced, and a few ancestors provided significant genetic contributions to later generations, such as the most concentrated final ancestors from Huang-Huai-Hai region followed by northern and southern regions. These results offer more information regarding their important parents and provide valuable references to soybean breeding. We should increase soybean germplasm exchanges with different regions and make use of elite lines, foreign cultivars and wild soybean germplasm to broaden the genetic background.

关键词： soybean uniform test nationally approved cultivars pedigree analysis direct parent ancestor genetic base

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