Based on the concept and development process of green agriculture and green economy,the field survey and questionnaire investigation were carried out in Jincheng Specialized Planting Cooperative in Xinji Town,Changli ...Based on the concept and development process of green agriculture and green economy,the field survey and questionnaire investigation were carried out in Jincheng Specialized Planting Cooperative in Xinji Town,Changli County of Qinhuangdao City. The results show that there are still many problems in the development of green economy and the improvement of green farms in Hebei Province. On this basis,it came up with pertinent measures and recommendations,in the hope of providing theoretical basis and reference for establishment and development of green farms in Hebei Province and most of domestic areas.展开更多
Dear Editor, Grain size is a major determinant of grain yield and quality in rice （Oryza sativa）, and was therefore an important selective target during domestication and breeding （Fitzgerald et al., 2009） （Takan...Dear Editor, Grain size is a major determinant of grain yield and quality in rice （Oryza sativa）, and was therefore an important selective target during domestication and breeding （Fitzgerald et al., 2009） （Takano-Kai et al., 2009）. In the past few decades, a dozen grain size-related QTLs/genes have been cloned （Huang et al., 2013; Zuo and Li, 2014）. Pyramiding grain size QTLs to breed high-yielding and high-quality rice varieties has proved to be a great success. For example, by pyramiding the nonfunctional alleles gs3 and gw8 in line HJX74.展开更多
As an analog of the quantum TKK algebra, a twisted quantum toroidal algebra of type A1 is introduced. Explicit realization of the new quantum TKK algebra is constructed with the help of twisted quantum vertex operator...As an analog of the quantum TKK algebra, a twisted quantum toroidal algebra of type A1 is introduced. Explicit realization of the new quantum TKK algebra is constructed with the help of twisted quantum vertex operators over a Fock space.展开更多
文摘Based on the concept and development process of green agriculture and green economy,the field survey and questionnaire investigation were carried out in Jincheng Specialized Planting Cooperative in Xinji Town,Changli County of Qinhuangdao City. The results show that there are still many problems in the development of green economy and the improvement of green farms in Hebei Province. On this basis,it came up with pertinent measures and recommendations,in the hope of providing theoretical basis and reference for establishment and development of green farms in Hebei Province and most of domestic areas.
基金This work was supported by grants from the National Natural Science Foundation （91635302）, the National Program on R＆D of Transgenic Plants （2016ZX08009003-004）, the National 863 Project （2014AA10A604） and the earmarked fund for the China Agriculture Research System （CARS-01-03） and the Bill ＆ Melinda Gates Foundation.
文摘Dear Editor, Grain size is a major determinant of grain yield and quality in rice （Oryza sativa）, and was therefore an important selective target during domestication and breeding （Fitzgerald et al., 2009） （Takano-Kai et al., 2009）. In the past few decades, a dozen grain size-related QTLs/genes have been cloned （Huang et al., 2013; Zuo and Li, 2014）. Pyramiding grain size QTLs to breed high-yielding and high-quality rice varieties has proved to be a great success. For example, by pyramiding the nonfunctional alleles gs3 and gw8 in line HJX74.
文摘As an analog of the quantum TKK algebra, a twisted quantum toroidal algebra of type A1 is introduced. Explicit realization of the new quantum TKK algebra is constructed with the help of twisted quantum vertex operators over a Fock space.
