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于2003年首次在广西防城金花茶国家级自然保护区发现金花茶炭疽病,并从病叶上分离出金花茶炭疽菌;根据致病性测定和病原菌株形态观察结果,将其鉴定为Colletotrichum camelliae Mass.,由该菌引起的金花茶炭疽病在广西属首次报道。为了寻找炭疽病的抗源,通过测定13种金花茶和3种山茶对金花茶炭疽病菌的抗性,结果表明:防城金花茶(C.chrysantha var.phaeopubisperma S.Y.Liang et Z.H.Tang)、东兴金花茶(C.tunghinensis Chang)、多瓣金花茶(C.multipetala S.Y.Liang et C.Z.Deng)、小花金花茶(C.micrantha S.Y.Liang et C.Y.Zhong)、顶生平果金花茶(C.pingguoensis var.terninalis(Liang et su)S.Y.Liang)5个种或变种表现抗病反应;博白大果油茶(Camellia gigantocarpa Hu et T.C.Huang)、红山茶(Camellia japonica Linn)的红露珍品种、金花茶(Camellia chrysantha(Hu)Tuyama)以及显脉金花茶(Camellia euphlebia Merr.ex Sealy)对Colletotrichum camelliae表现为免疫反应,这些抗性材料将为金花茶的种质改良提供优质抗源。
The anthracnose of Camellia oleifera was found for the first time in 2003 in Jinhua Cha National Nature Reserve of Fangcheng, Guangxi and the anthracnose of Camellia sinensis was isolated from the diseased leaves. According to the pathogenicity test and morphological observation, the pathogen was identified as Colletotrichum Camelliae Mass., the fungus caused by anthracnose in Guangxi is the first report. In order to find the source of anthracnose resistance, the resistance of Camellia sinensis (Camellia sinensis var. Phaeopubisperma SYLiang et ZHTang), Dongxing gold C. tonunghinensis Chang, C. multipetala SYLiang et CZDeng, C.micrantha SYLiang et CYZhong, C. pingguoensis var. Semidinis ( Liang et su, SYLiang) showed resistance to five species or varieties. Camellia chrysantha (Camellia chrysantha), Camellia chrysantha (Camellia chrysantha) (Hu) Tuyama and Camellia euphlebia Merr.ex Sealy showed immune response to Colletotrichum camelliae, and these resistant materials will provide excellent anti-germplasm resources for the improvement of Camellia.