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頁籤選單縮合
題名 | 抑制三種果樹炭疽病菌之化學藥劑篩選=Evaluation of Fungicides for Suppression of Mycelial Growth and Conidial Germination of Colletotrichum Species Isolated from Mango, Pomelo and Banana Fruit |
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作者姓名(中文) | 蔡志濃; 安寶貞; 胡瓊月; 鄭秀芳; | 書刊名 | 植物病理學會刊 |
卷期 | 15:1 民95.03 |
頁次 | 頁39-54 |
分類號 | 433.85 |
關鍵詞 | 炭疽病; 炭疽病菌; 檬果; 文旦; 香蕉; 藥劑篩選; 病害防治; Anthracnose; Colletotrichum gloeosporioides; C. musae; Mango; Pomelo; Banana; Fungicides; Chemical control; |
語文 | 中文(Chinese) |
中文摘要 | 在實驗室,將化學藥劑添加於培養基中,再測定菌絲生長與分生孢子發芽的情形,以評估41種藥劑於不同濃度下對檬果、文旦及香蕉炭疽病菌的抑制效果。在菌絲生長方面,化學藥劑添加於2% V-8蔬菜汁瓊脂(2% V-8A)供試時,分別有3種、18種及16種藥劑可以完全抑制檬果、文旦及香蕉炭麋病菌株之菌絲生長,其中以4-4式波爾多液、撲克拉乳劑及撲克拉錳可濕性粉劑等3種藥劑之抑制效果最佳,當有效成份濃度在10mg/L時即可完全抑制所有供試菌株之菌絲生長。在孢子發芽方面,將化學藥劑添加於1% CV-8蔬菜汁培養液(1% CV-8B)中供試時,分別有8種、9種及8種藥劑可以完全抑制檬果、文旦及香蕉炭疽菌株之分生孢子發芽,其中以4-4式波爾多液、鋅錳乃浦可濕性粉劑、免得爛水分散性粒劑、?硫?水懸劑、快得寧水懸劑、腐絕快得寧可濕性粉劑、嘉賜快得寧可濕性粉劑、鋅錳邁克巴呵濕性粉劑等8種藥劑的藥效最佳,當有效成份濃度在10mg/L時即可完全抑制所有供試三種菌株之孢子發芽與形成附著器,此外賽普護汰寧雖然不能完全抑制孢子發芽,但孢子發芽後不易形成附著器。 |
英文摘要 | Anthracnose caused by Colletotrichum gloeosporioides on mange and pomelo, and C. musae on banana were major fruit disease in Taiwan. In the study, 2% V-8 juice agar (2% V-8A) or 1% CV-8 juice broth (1% CV-8B) were amended with individual chemical to evaluate the suppression ability of a total of 41 chemicals to anthracnose pathogens isolated from three different hosts. For suppression of mycelial growth on 2% V-8A, 3, 18 and 16 kinds of chemicals, respectively, showed strongly inhibition effects to mange, pomelo and banana isolates at all tested concentrations (10,100 and 1000 mg/L, ai). Especially, 3chemicals were most effective; none of tested isolates could grow on the medium amended with them. They were 4-4 Bordeaux mixtures, 25% prochloraz EC and 50% prochlorate managanese WP. For inhibition of conidial germination in 1% CV-8B, 8,9 and 8 kinds of chemicals, respectively, could completely suppress the conidia of all tested isolates from mango, pomelo and banana at all tested concentrations. Among them, 8 chemicals, including 4-4 Bordeaux mixtures, 80% mancozeb WP, 80% Metriam WG, 42.2% kasugamycin + oxine-copper WP, and 62.5% Myclobutanil + Mancozeb WP could completely inhibit conidial germination as well as appressoria formation of all tested isolates at all tested concentrations. 62.5%% Cyprodinil + Fludioxonil WG was also very effective in inhibiting appressoria formation but not conidial germination at low concentration. |
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