- 期刊
A New Seed-Bome Pathogen, Alternaria dianthicola, on Dianthus in Taiwan
在台灣石竹屬植物之新種媒病原
摘要
利用濕紙法檢測五種品種的康乃馨及三種品種的石竹種子，而發現本省新紀錄之Alternaria dinanthicola 、Cladosporium oxysporum 、Fusarium porliferatim 及Stemphylium vesicaruim。康乃馨品種Chabaud La France 對A.dianthicloa十分容易罹病，被感染的葉片在幾天內就會枯萎，然而Ａ.dianthicola 在日本石竹上只造成葉斑。Ｄifenoconazole、prochloraz 與pyrifenox 在湛度１ppm 時可以顯地(p=0.05)抑制A.dianthicola 的菌絲生長；日本石竹及康乃馨的種子以difenoconazoel或pyrifenox 處理後，所產生的罹病幼苗顯著地(p=0.05)少於種子未經藥劑處理的照組。
並列摘要
Seed samples of five cultivars of carnation (Dial1thus caryophyllus) and three cultivars of Japanese dianthus were examined by blotter method. Ten genera of fungi were isolated. Among them, Alternaria dianthicola, Cladosporium oxysporum, Fusarium proliferatum and Stemphylium vesicarium were firstly recorded as seed-borne fungi on Dianthus spp. in Taiwan. Dianthus caryophyllus L. cv. Chabaud La France was very susceptible to the infection of A. dianthicola. Infected leaves of cv. Chabaud La France caused by A. dianthicola shriveled in few days, whereas leaf spots occurred on Japanese dianthus. Difenoconazole, prochloraz, or pyrifenox at I ppm was able to inhibit significantly (p=0.05) the growth of A. dianthicola. Seeds of Japanese dianthus and carnation treated with difenoconazole or pyrifenox produced significantly (p=0.05) less diseased seedlings than those of untreated control.
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