描述海南儋州某红掌栽培基地红掌发生青枯病的症状,根据对该病原菌的形态、染色反应、培养性状、生理生化特性的测定结果,将病原菌鉴定为茄青枯拉尔氏菌[Ralstonia solanacearum(Sm ith)Yabuuch iet a.l]。通过对病原菌的寄主范围测定,...描述海南儋州某红掌栽培基地红掌发生青枯病的症状,根据对该病原菌的形态、染色反应、培养性状、生理生化特性的测定结果,将病原菌鉴定为茄青枯拉尔氏菌[Ralstonia solanacearum(Sm ith)Yabuuch iet a.l]。通过对病原菌的寄主范围测定,病原菌属茄青枯拉尔氏菌小种1,根据对6种糖、醇利用的测定结果,病原菌属于生物变种3。展开更多
The minute size of orchid seeds have made them difficult to observe,orchid seeds germination and mortality of seedlings in suit difficult to study.Recently,a new technique was described by which orchid seeds were sowe...The minute size of orchid seeds have made them difficult to observe,orchid seeds germination and mortality of seedlings in suit difficult to study.Recently,a new technique was described by which orchid seeds were sowed and retrieved in the field under natural conditions.It is possible to conduct a quantitative study of orchid germination in suit and observe seasonal growth and mortality of seedlings.The technique has also enabled us to bait appropriate fungus from the germinated seeds and young seedlings,which could be beneficial both to the orchid propagation and conservation.For the further studies,the potential issue and application perspective of this technique are also discussed in this text.展开更多
文摘描述海南儋州某红掌栽培基地红掌发生青枯病的症状,根据对该病原菌的形态、染色反应、培养性状、生理生化特性的测定结果,将病原菌鉴定为茄青枯拉尔氏菌[Ralstonia solanacearum(Sm ith)Yabuuch iet a.l]。通过对病原菌的寄主范围测定,病原菌属茄青枯拉尔氏菌小种1,根据对6种糖、醇利用的测定结果,病原菌属于生物变种3。
文摘The minute size of orchid seeds have made them difficult to observe,orchid seeds germination and mortality of seedlings in suit difficult to study.Recently,a new technique was described by which orchid seeds were sowed and retrieved in the field under natural conditions.It is possible to conduct a quantitative study of orchid germination in suit and observe seasonal growth and mortality of seedlings.The technique has also enabled us to bait appropriate fungus from the germinated seeds and young seedlings,which could be beneficial both to the orchid propagation and conservation.For the further studies,the potential issue and application perspective of this technique are also discussed in this text.
