- 期刊
- OpenAccess
中部地區玫瑰癌腫病之發生調查與防治
Field Survey and Management of Rose Crown Gall in Central Taiwan
摘要
中部地區玫瑰癌腫病發生調查，共調查40.6公頃，有16塊田發現癌腫病，面積約為3.5公頃，其發病率由2～80%不等，發生癌腫病田分布於9個鄉鎮。玫瑰品種間對癌腫病之抗感性差異極大，從抗病至感病皆有存在，在檢定之29個品種中，佳娜紅、沙蔓莎、金葉B.B.、雙喜、米蘭爸爸及黏巴達等6個品種最抗病。22個分離自玫瑰癌腫病的菌株大部分菌株可生長於含鏈黴素（1,000倍）、多保鏈黴素（1,000倍）、護粒丹（1,000倍）及克枯爛（1,000倍）之培養基。田間藥劑試驗結果顯示，玫瑰扞插繁殖時，以10%鏈四環黴素SP 1,000倍或20%歐索林酸WP 1,000倍藥液浸泡玫瑰插穗10分鐘，可有效防治癌腫病發生。
並列摘要
A field survey was conducted in 40.6 ha of rose fields for crown gall disease incidence in the regions of central Taiwan. The disease incidence was found and distributed in 16 fields covering nine towns. Occurrence of crown gall was noticed in 3.5 ha with as estimated percentage of disease incidence ranging from 2 to 80%. Of the 29 rose cultivars tested, both crown gall resistant and susceptible cultivars were found to exist. The cultivars viz., Grand Gala, Samantha, Marina, Double Delight, Papa Meilland and Lambada exhibited resistant reaction to crown gall disease. Most strains of crown gall bacterium, Agrobacterium tumefaciens were able to grow on nutrient agar medium containing streptomycin, thiophanate methyl + streptomycin, edifenphos + fthalide and tecloftalam. However, most strains were unable to grow on media supplemented with copper containing agrochemicals. Field trials conducted with different chemicals showed that the rose cuttings planted after dipping in 10% aqueous solutions of streptomycin + tetracycline S.P. and 20% solution of oxolinic acid W.P for 10 min, effectively prevented the field incidence of crown gall disease.