[Objective] This research aimed at exploring an effective way for inoculation and identification of chrysanthemum white rust under controlled conditions. [Method] By combining the observation methods with the naked ey...[Objective] This research aimed at exploring an effective way for inoculation and identification of chrysanthemum white rust under controlled conditions. [Method] By combining the observation methods with the naked eye and under optical microscope, we had established the identification standards for chrysanthemum white rust with six classifications and optimized artificial inoculation methods in vitro. [Result] The results showed that bottled cuttings identification method and petri dished leaves identification method both can be used for identification in vitro of chrysanthemum white rust, bottled cuttings identification method had shown better effects than petri dished leaves identification method, and was supposed to be best artificial inoculation and identification method in vitro. [Conclusion] This research had provided a scientific method for safe and effective researches on chrysanthemum white rust, in order to control the occurrence and diffusion of this quarantine disease.展开更多
The white rust,caused by Puccinia horiana was one of the most important epidemic diseases on Chrysanthemum,and also was a quarantine action pest in the world.Trials determined the teliospores germinating biology of P....The white rust,caused by Puccinia horiana was one of the most important epidemic diseases on Chrysanthemum,and also was a quarantine action pest in the world.Trials determined the teliospores germinating biology of P.horiana : the teliospores were germinated between 4 ℃ and 32 ℃,while the optimum temperature range was 15 ℃ to 24 ℃,especially between 18 ℃ and 21 ℃.Water was necessary for the teliospores germination.Without free water,it couldn’t germinate in 24 h,even with 100 % R.H.The propriety of pH for germination was pH 4 to 6.5, while pH 6 was the most favorite.2 % glucose solution promoted the germination of the teliospores evidently,whereas the fresh juice of chrysanthemum foliages restrained it prominently.Light didn’t influence on the germination.展开更多
为有效防治菊花(Dendranthema morifolium)白锈病,采用盆栽试验比较了62.5%嘧菌环胺·咯菌腈水分散粒剂、50%咯菌腈可湿性粉剂、39%精甲·嘧菌酯水分散粒剂和10%戊菌唑水乳剂等4种杀菌剂对菊花白锈病(Chrysanthemum white rust,...为有效防治菊花(Dendranthema morifolium)白锈病,采用盆栽试验比较了62.5%嘧菌环胺·咯菌腈水分散粒剂、50%咯菌腈可湿性粉剂、39%精甲·嘧菌酯水分散粒剂和10%戊菌唑水乳剂等4种杀菌剂对菊花白锈病(Chrysanthemum white rust,CWR)的防效,采用插穗浸药法测试了11种杀菌剂对带病插穗生根和存活的影响.结果表明:施药后28 d,10%戊菌唑EW3000倍液的累积防效最好,为82.46%;处理后57 d,39%精甲·嘧菌酯SC2000倍液和10%戊菌唑EW1000倍液的效果最好,累积防效达90%以上.带菌插穗药剂试验结果表明,11种药剂药浴处理插穗不能提高带菌插穗的生根率和存活率,因此,10%戊菌唑EW可用于防治菊花白锈病.展开更多
基金Supported by the"Eleventh Five-Year"National Technology Support Program"Breeding of New Varieties of High Yield and Quality of Major Commercial Flowers"(2006BAD01A18)the Postdoctoral Research Fund of Shenyang Agricultural University~~
文摘[Objective] This research aimed at exploring an effective way for inoculation and identification of chrysanthemum white rust under controlled conditions. [Method] By combining the observation methods with the naked eye and under optical microscope, we had established the identification standards for chrysanthemum white rust with six classifications and optimized artificial inoculation methods in vitro. [Result] The results showed that bottled cuttings identification method and petri dished leaves identification method both can be used for identification in vitro of chrysanthemum white rust, bottled cuttings identification method had shown better effects than petri dished leaves identification method, and was supposed to be best artificial inoculation and identification method in vitro. [Conclusion] This research had provided a scientific method for safe and effective researches on chrysanthemum white rust, in order to control the occurrence and diffusion of this quarantine disease.
文摘The white rust,caused by Puccinia horiana was one of the most important epidemic diseases on Chrysanthemum,and also was a quarantine action pest in the world.Trials determined the teliospores germinating biology of P.horiana : the teliospores were germinated between 4 ℃ and 32 ℃,while the optimum temperature range was 15 ℃ to 24 ℃,especially between 18 ℃ and 21 ℃.Water was necessary for the teliospores germination.Without free water,it couldn’t germinate in 24 h,even with 100 % R.H.The propriety of pH for germination was pH 4 to 6.5, while pH 6 was the most favorite.2 % glucose solution promoted the germination of the teliospores evidently,whereas the fresh juice of chrysanthemum foliages restrained it prominently.Light didn’t influence on the germination.
