Grain soybean(Glycine max(L.)Merr.)shows potential as a forage crop following its introduction from low to high latitudes due to in its growth phenotype.However,the application of this approach is impeded by the diver...Grain soybean(Glycine max(L.)Merr.)shows potential as a forage crop following its introduction from low to high latitudes due to in its growth phenotype.However,the application of this approach is impeded by the diverse ecological types of soybean,their adaptability to the introduction,and the uncertainty surrounding the growth phenotype post-introduction.This study introduced 24 grain soybean varieties from low-latitude regions(22-31°N)to the high-latitude northwestern Loess Plateau(39°N)between 2018 and 2019.The growth phenotypes were observed,and their forage productivity potential was assessed.All varieties displayed delayed flowering following cross-latitude introduction,with the vegetative growth phase of some varieties even exceeding their entire growth duration at their origin.Rapid dry matter accumulation rates indicated growth adaptation performance and formed the basis for soybean forage yield.Varieties from the tropical South China region exhibited significant yield advantages,with dry matter yields of 8.97-14.68 t ha^(-1)and crude protein yields of 1.44-2.51 t ha^(-1).Varieties HX3 and GX7 from this region demonstrated optimal growth adaptability and productivity in the cross-latitude environment,achieving the highest dry matter yields of 14.68 and 13.86 t ha^(-1),respectively.As a result,HX3 and GX7 are recommended for local farming systems to provide high-quality forage.The cross-latitude introduction of soybean is proposed as a viable and efficient strategy for forage improvement and application.展开更多
[Objectives]Amygdalus tangutica is a new and excellent tree species for afforestation in arid areas of central China for soil and water conservation.It has the characteristics of drought resistance,cold resistance and...[Objectives]Amygdalus tangutica is a new and excellent tree species for afforestation in arid areas of central China for soil and water conservation.It has the characteristics of drought resistance,cold resistance and tolerance to poor soil,and has strong ecological,landscape and economic value.To provide a theoretical basis for the propagation and application of A.tangutica in Minqin and similar arid sandy areas of Northwest China,this paper explored its introduction and cultivation technology through field experiments,considering the natural geographical conditions of the study area.[Methods]High-quality seeds were introduced from forest farms of Chankou Town,Anding District,Dingxi City,and Dian ga Town,Diebu County,Gannan Prefecture,and the introduction and cultivation experiments of A.tangutica were carried out in the greenhouse of Wuwei Oasis Station.[Results](1)Soaking treatment at different temperatures combined with gibberellin treatment and stratification germination could effectively break the dormancy of A.tangutica seeds,thereby accelerating germination and shortening the germination cycle.The germination peak appeared 15-20 d after sowing,and the final germination rate could reach about 50%.(2)In the introduction and cultivation of A.tangutica in arid areas,large fruit seeds with higher thousand-grain weight should be given priority.The emergence rate of large fruit seeds was significantly higher than that of small fruit seeds,with the highest reaching 57%,while the highest of small fruit seeds was only 20%.Soaking treatment at different temperatures had no significant difference in the germination performance and germination potential of A.tangutica seeds,but the germination index of large fruit seeds was higher than that of small fruit seeds.(3)Under the current conditions,seedling propagation is a reliable way to propagate A.tangutica in arid areas.The cutting propagation technology,particularly hardwood cutting which exhibits an extremely low survival rate,is not yet mature and is currently unsuitable for large-scale production.Consequently,future efforts should prioritize more in-depth research on softwood cutting techniques.[Conclusions]This study provides a theoretical foundation for the propagation and broader application of A.tangutica in Minqin and similar arid sandy areas of Northwest China.展开更多
This paper focuses on the ideological and political construction of the“Introduction to High-Speed Railway”course in higher vocational colleges.Based on the national policy orientation of ideological and political e...This paper focuses on the ideological and political construction of the“Introduction to High-Speed Railway”course in higher vocational colleges.Based on the national policy orientation of ideological and political education in courses and the talent demands of the high-speed railway industry,it comprehensively employs methods such as literature research and questionnaire surveys to analyze the current status and problems of ideological and political construction in the course.The research finds that there are issues such as insufficient in-depth exploration of ideological and political elements,inadequate teacher capabilities,monotonous teaching methods,and the absence of an evaluation system.In response to these problems,it proposes strategies such as deepening the exploration of ideological and political elements,enhancing teacher capabilities,innovating teaching methods,and improving the evaluation system.It aims to construct a collaborative system of“knowledge impartation+value guidance+practical education”,providing theoretical and practical references for the ideological and political construction of courses in higher vocational transportation-related majors.展开更多
基金funded by the National Key R&D Program of China(2022YFD1300803)the China Agriculture Research System of MOF and MARA(CARS-34)。
文摘Grain soybean(Glycine max(L.)Merr.)shows potential as a forage crop following its introduction from low to high latitudes due to in its growth phenotype.However,the application of this approach is impeded by the diverse ecological types of soybean,their adaptability to the introduction,and the uncertainty surrounding the growth phenotype post-introduction.This study introduced 24 grain soybean varieties from low-latitude regions(22-31°N)to the high-latitude northwestern Loess Plateau(39°N)between 2018 and 2019.The growth phenotypes were observed,and their forage productivity potential was assessed.All varieties displayed delayed flowering following cross-latitude introduction,with the vegetative growth phase of some varieties even exceeding their entire growth duration at their origin.Rapid dry matter accumulation rates indicated growth adaptation performance and formed the basis for soybean forage yield.Varieties from the tropical South China region exhibited significant yield advantages,with dry matter yields of 8.97-14.68 t ha^(-1)and crude protein yields of 1.44-2.51 t ha^(-1).Varieties HX3 and GX7 from this region demonstrated optimal growth adaptability and productivity in the cross-latitude environment,achieving the highest dry matter yields of 14.68 and 13.86 t ha^(-1),respectively.As a result,HX3 and GX7 are recommended for local farming systems to provide high-quality forage.The cross-latitude introduction of soybean is proposed as a viable and efficient strategy for forage improvement and application.
基金Supported by Gansu Provincial Key Talent Project(GZTZ20240415)The Central Financial Forestry Science and Technology Promotion Demonstration Fund Project(2024ZYTG04)+1 种基金Gansu Provincial Key Research and Development Program(25YFFA073)"Jiebangguashuai"Project for Key Technology Research and Development of the"Three North"Program of National Forestry and Grassland Administration(202401-05).
文摘[Objectives]Amygdalus tangutica is a new and excellent tree species for afforestation in arid areas of central China for soil and water conservation.It has the characteristics of drought resistance,cold resistance and tolerance to poor soil,and has strong ecological,landscape and economic value.To provide a theoretical basis for the propagation and application of A.tangutica in Minqin and similar arid sandy areas of Northwest China,this paper explored its introduction and cultivation technology through field experiments,considering the natural geographical conditions of the study area.[Methods]High-quality seeds were introduced from forest farms of Chankou Town,Anding District,Dingxi City,and Dian ga Town,Diebu County,Gannan Prefecture,and the introduction and cultivation experiments of A.tangutica were carried out in the greenhouse of Wuwei Oasis Station.[Results](1)Soaking treatment at different temperatures combined with gibberellin treatment and stratification germination could effectively break the dormancy of A.tangutica seeds,thereby accelerating germination and shortening the germination cycle.The germination peak appeared 15-20 d after sowing,and the final germination rate could reach about 50%.(2)In the introduction and cultivation of A.tangutica in arid areas,large fruit seeds with higher thousand-grain weight should be given priority.The emergence rate of large fruit seeds was significantly higher than that of small fruit seeds,with the highest reaching 57%,while the highest of small fruit seeds was only 20%.Soaking treatment at different temperatures had no significant difference in the germination performance and germination potential of A.tangutica seeds,but the germination index of large fruit seeds was higher than that of small fruit seeds.(3)Under the current conditions,seedling propagation is a reliable way to propagate A.tangutica in arid areas.The cutting propagation technology,particularly hardwood cutting which exhibits an extremely low survival rate,is not yet mature and is currently unsuitable for large-scale production.Consequently,future efforts should prioritize more in-depth research on softwood cutting techniques.[Conclusions]This study provides a theoretical foundation for the propagation and broader application of A.tangutica in Minqin and similar arid sandy areas of Northwest China.
基金2024 academic year’s teaching and research project of the college,“Exploration on the Construction of Ideological and Political Education in the High-Speed Railway Overview Course in Higher Vocational Colleges”(Project No.:LJZJY-2024-YB-03)。
文摘This paper focuses on the ideological and political construction of the“Introduction to High-Speed Railway”course in higher vocational colleges.Based on the national policy orientation of ideological and political education in courses and the talent demands of the high-speed railway industry,it comprehensively employs methods such as literature research and questionnaire surveys to analyze the current status and problems of ideological and political construction in the course.The research finds that there are issues such as insufficient in-depth exploration of ideological and political elements,inadequate teacher capabilities,monotonous teaching methods,and the absence of an evaluation system.In response to these problems,it proposes strategies such as deepening the exploration of ideological and political elements,enhancing teacher capabilities,innovating teaching methods,and improving the evaluation system.It aims to construct a collaborative system of“knowledge impartation+value guidance+practical education”,providing theoretical and practical references for the ideological and political construction of courses in higher vocational transportation-related majors.
