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首页> 外文期刊>Acta Horticulturae >Disinfection of recirculation water from closed cultivation systems by heat treatment.
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Disinfection of recirculation water from closed cultivation systems by heat treatment.

机译：通过热处理对密闭栽培系统中的循环水进行消毒。

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Experiments were conducted to compare the efficiency of different temperature regimes in the disinfection of the recirculation water in closed cultivations systems. Several exposure times and temperatures were tested against tomato mosaic virus (ToMV) and Fusarium oxysporum f.sp. lycopersici in a commercial heating installation and against Radopholus similis in a laboratory set-up. ToMV was completely eliminated with exposure to 95鳦 for at least 15 seconds. Similarly, 100% efficacy was obtained with exposure to 87鳦 for 15 seconds. For ToMV, a correlation was established between the lethal temperature and exposure time; the lower the temperature, the longer the exposure time required for the elimination of the virus. This correlation was not observed in tests with F. oxysporum f.sp. lycopersici; at the shortest exposure time of 45 seconds, 100% efficacy was achieved at all temperatures tested (80-95鳦). In the laboratory set-up, adults and juveniles of R. similis were killed at 48, 50 and 52.5鳦during 5 and 2 minutes and 30 seconds, respectively. The motility of the nematodes can be used as a parameter of the efficacy of the treatment, but should be established after one or two weeks, as some nematodes were only non-motile (but not dead), following heat treatment, and were able to infect Anthurium plants (in in vivo tests) for a given period of time.
机译：进行了实验，以比较不同温度方案在封闭栽培系统中对循环水进行消毒的效率。测试了几种暴露时间和温度，以对抗番茄花叶病毒（ToMV）和尖孢镰刀菌f.sp.。 lycopersici在商业供暖装置中使用，而Radapholus similis在实验室中使用。暴露于95鳦至少15秒钟，ToMV被完全消除。同样，暴露于87°C 15秒可获得100％的功效。对于ToMV，在致死温度和暴露时间之间建立了相关性。温度越低，消除病毒所需的暴露时间越长。在用尖孢镰刀菌f.sp.进行的测试中未观察到这种相关性。 lycopersici;在45秒的最短暴露时间下，在所有测试温度（80-95鳦）下均达到100％的功效。在实验室设置中，分别在5分钟，2分钟和30秒内分别在48、50和52.5点杀死了拟南芥的成年和少年。线虫的活力可以用作治疗效果的参数，但应在一两周后确定，因为某些线虫在热处理后只能运动，但不能死亡。在给定的时间内感染红掌植物（体内测试）。

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