[Objective]The aim was to isolate and identify the pathogen causing black spot disease in guava（Psidium guajava）,so as to determine its taxonomic status.[Method]The fungus was identified by determining its pathogeni...[Objective]The aim was to isolate and identify the pathogen causing black spot disease in guava（Psidium guajava）,so as to determine its taxonomic status.[Method]The fungus was identified by determining its pathogenicity,observing its morphology characteristics and analyzing its ITS sequence.[Result]The pathogen causing black spot disease in guava was a strain of Guignardia mangiferae.[Conclusion]This study will provide theoretical basis for curing black spot disease of guava.展开更多
In the article,with the instruments of the Research Institute of Wood Industry,Chinese Academy of Forestry,the experiment method of Forintek Canada Corp.was used to test the laminating of lodgepole pine containing bee...In the article,with the instruments of the Research Institute of Wood Industry,Chinese Academy of Forestry,the experiment method of Forintek Canada Corp.was used to test the laminating of lodgepole pine containing beetle-transmitted bluestain;finally the result was compared with Canada report.The results show that the presence of glue joints of bluestained wood made with either PVA or PRF adhesive makes no difference to the shear strength of the joints,and no difference to durability of the joints using PRF.Also the presence of beetle-transmitted bluestain in wood does not affect the adherence of the interior finishes tested.展开更多
文摘[Objective]The aim was to isolate and identify the pathogen causing black spot disease in guava（Psidium guajava）,so as to determine its taxonomic status.[Method]The fungus was identified by determining its pathogenicity,observing its morphology characteristics and analyzing its ITS sequence.[Result]The pathogen causing black spot disease in guava was a strain of Guignardia mangiferae.[Conclusion]This study will provide theoretical basis for curing black spot disease of guava.
文摘In the article,with the instruments of the Research Institute of Wood Industry,Chinese Academy of Forestry,the experiment method of Forintek Canada Corp.was used to test the laminating of lodgepole pine containing beetle-transmitted bluestain;finally the result was compared with Canada report.The results show that the presence of glue joints of bluestained wood made with either PVA or PRF adhesive makes no difference to the shear strength of the joints,and no difference to durability of the joints using PRF.Also the presence of beetle-transmitted bluestain in wood does not affect the adherence of the interior finishes tested.
