The current cultivation of apple trees mainly relies on grafted seedlings to achieve seedling regeneration of apple trees. The commonly used splice grafting,V-shaped grafting and tongue grafting mostly use plastic fil...The current cultivation of apple trees mainly relies on grafted seedlings to achieve seedling regeneration of apple trees. The commonly used splice grafting,V-shaped grafting and tongue grafting mostly use plastic film for fixation and sealing. After one year,the wrapped plastic film needs to be removed to avoid affecting the growth of the seedlings. This paper introduces a brand new grafting technology which uses tongue grafting iron nails for fixation and growth fixation wax for sealing( SDRG). The process of mechanized grafting for apple nursery stock is determined,and the fixation and sealing problems with the grafting parts of seedlings are solved. The technology is characterized by quick speed,high efficiency,improved seedling survival rate lower labor cost and great significance to the promotion of industrialized nursery and mechanized grafting.展开更多
The obligate biotrophic basidiomycete fungus Puccinia striformis f.sp.tritici(Pst)is the causative agent of wheat stripe(yellow)rust,a disease that results in severe damage to global wheat production(Chen and Kang,201...The obligate biotrophic basidiomycete fungus Puccinia striformis f.sp.tritici(Pst)is the causative agent of wheat stripe(yellow)rust,a disease that results in severe damage to global wheat production(Chen and Kang,2017).This pathogen has a mixed reproductive mode encompassing both asexual and sexual reproduction.The asexual stage is accomplished by reinfecting wheat with urediniospores,while the sexual cycle involves five different spore types and two phylogenetically unrelated plant hosts wheat,which is the primary host,and barberry,which is the alternate host(Zhao et al.,2016).This extremely complex lifecycle facilitates large genetic variation among Pst populations,which is conducive to the emergence of new virulent races that can overcome wheat resistance genes,resulting in epidemics(Chen and Kang,2017).Secreted effector proteins,the key virulence factors in fungal pathogens,can not only suppress plant immune systems but also trigger host immune responses following recognition by plant receptors(Toruno et al.,2016).展开更多
基金Supported by National Key Research and Development Program of China(2017YFD0701402-2)
文摘The current cultivation of apple trees mainly relies on grafted seedlings to achieve seedling regeneration of apple trees. The commonly used splice grafting,V-shaped grafting and tongue grafting mostly use plastic film for fixation and sealing. After one year,the wrapped plastic film needs to be removed to avoid affecting the growth of the seedlings. This paper introduces a brand new grafting technology which uses tongue grafting iron nails for fixation and growth fixation wax for sealing( SDRG). The process of mechanized grafting for apple nursery stock is determined,and the fixation and sealing problems with the grafting parts of seedlings are solved. The technology is characterized by quick speed,high efficiency,improved seedling survival rate lower labor cost and great significance to the promotion of industrialized nursery and mechanized grafting.
基金the National Key Research and Development Program of China(2021YFD1401001)Shaanxi Province Postdoctoral Science Foundation(2023BSHEDZZ121)the National"111 plan"of China(BP0719026).
文摘The obligate biotrophic basidiomycete fungus Puccinia striformis f.sp.tritici(Pst)is the causative agent of wheat stripe(yellow)rust,a disease that results in severe damage to global wheat production(Chen and Kang,2017).This pathogen has a mixed reproductive mode encompassing both asexual and sexual reproduction.The asexual stage is accomplished by reinfecting wheat with urediniospores,while the sexual cycle involves five different spore types and two phylogenetically unrelated plant hosts wheat,which is the primary host,and barberry,which is the alternate host(Zhao et al.,2016).This extremely complex lifecycle facilitates large genetic variation among Pst populations,which is conducive to the emergence of new virulent races that can overcome wheat resistance genes,resulting in epidemics(Chen and Kang,2017).Secreted effector proteins,the key virulence factors in fungal pathogens,can not only suppress plant immune systems but also trigger host immune responses following recognition by plant receptors(Toruno et al.,2016).
