CAJ | 학술논문

对番茄茎基腐病病原菌生物学特性研究结果表明:病菌菌丝在供试PDA、PSA、2%水琼脂、Richard、番茄煎汁、燕麦片和番茄燕麦等7种培养基中均能良好生长,而在2%水琼脂培养基上生长较为缓慢;菌丝在2～32℃范围内均能生长,最适20℃,致死温度为50℃,10 min;菌丝生长的pH范围为3～10,最适为5～7;光照对菌丝生长影响较小.病菌在7种供试培养基上均能产生菌核;菌核在10种供试营养物质中均能萌发,萌发温度范围为5～30℃,最适20℃,致死温度为59℃,10 min,菌核萌发pH范围为3～10,最适为7.
대번가경기부병병원균생물학특성연구결과표명:병균균사재공시PDA、PSA、2%수경지、Richard、번가전즙、연맥편화번가연맥등7충배양기중균능량호생장,이재2%수경지배양기상생장교위완만;균사재2～32℃범위내균능생장,최괄20℃,치사온도위50℃,10 min;균사생장적pH범위위3～10,최괄위5～7;광조대균사생장영향교소.병균재7충공시배양기상균능산생균핵;균핵재10충공시영양물질중균능맹발,맹발온도범위위5～30℃,최괄20℃,치사온도위59℃,10 min,균핵맹발pH범위위3～10,최괄위7.
The biological characteristics of the pathogen of the tomato stem rot was studied. The results showed that the mycelia could grow better on PDA, PSA, 2% water agar, Richard, tomato juice, oatmeal and tomato oat-meal culture media, but worse on the 2% water agar culture medium. The temperature for mycelial growth ranged from 2℃ to 32℃, and 20℃ was the optimum. The mycelia could grow from pH3 to pH10, but pH5-7 was bet-ter. The effect of light on the mycelial growth was not evident and mycelial lethal temperature was 50℃ for 10min. The sclerotia could be produced in the 7 kinds of nutrition. The sclerotia could germinate in the 10 kinds of nutrition. The range of temperature for sclerotia germination was 5-30℃, but 20℃ was the optimum; the sclerotia could germinate from pH3 to pH10, and the lethal temperature was 59℃ for 10 min.