|Title:||臺灣蘆筍立枯病及根腐病害之發生情形與要因之研究||Other Titles:||Studies on Fusarial wilt and Root Disease Complexes of Asparagus in Taiwan||Authors:||杜金池
|Issue Date:||6-Sep-1977||Publisher:||農業試驗所||Journal Volume:||26||Journal Issue:||3||Start page/Pages:||216-223||Source:||中華農業研究||Abstract:||
調查本省苗栗、彰化、嘉義及屏東等四縣主要蘆筍栽培鄉鎮共11,201處（每處01公頃）蘆筍田，發現根部病害周年發生率達1.8～5.2％。全部罹病株中Fusarium oxysporum f. sp. asparagi引起之立枯病約佔46％，F. moniliforme引起之根腐病約17％，餘為其他病原菌如F. solani, Rhizoctonia solani及Pythium sp.等所引起。土壤種類對根部病害之發生有很大的影響，周年平均發病率壤土為.％，砂壤土為.％，壤砂土及砂土為5.2％。
以F. oxysporum f . sp. asparagi與F . moniliforme 兩種病原菌探討土壤溫度及濕度與發病之關係，發現兩者均以土壤溫度25℃發病最嚴重，但土壤濕度則前者以21% MHC ，後者以26% MHC 最易發病。F. oxysporum f. sp. asparagi在中性（PH7）土壤，F. moniliforme 以略偏酸性（PH6）土壤較適於發病。
A survey on fusarial wilt and other root diseases of asparagus was carried out from 11,201 fields located at 4 different asparagus growing prefectures in Taiwan in 1975. It was found that annual average of wilt and root diseases reached as high as 1.8-5.2%. Among diseased plants fourty six percent were proved to be incited by Fusarium oxysporum f. sp. asparagi, 17% by F. moniliforme, and the rest of them by F. solani, Rhizoctonia solani and Pythiurn sp. The soil type of asparagus field was proved to be closely related to the severity of root diseases; those of loam soil showed 2.4% of disease, sandy loam 3.6%, but loamy sand and sand 5.2%.
Although the optimum soil temperatures for disease incidence of both F. oxysporum sp. asparagi and F. moniliforme were at 25°C, the former was more prevalent if soil water holding capacity was at 21% with soil pH at 7, and the latter was more favorable at 26 % of water holding capacity with a soil pH around 6.
|Appears in Collections:||1.台灣農業研究(1950～迄今)|
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