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水稻潜根线虫(Hirschmaniella oryzae)的致死温度为51°C10分钟。在零下的低温,该线虫最多只能存活30小时,但它能在水稻生长受抑制的温度(40。C)下生活1个月左右。该线虫耐水淹而不耐干燥,在5—32°C的室温散光条件下,浸在无菌水中的线虫可以存活185—240天,但在室内(湿度为70—85%)自然凉干后,最多只能存活84小时。该线虫对酸碱度的适应性非常广,在水稻无法生存的pH2.2和pH12.4的缓冲液中都可以分别存活10—15天和20—30天。紫外光和直射阳光对该线虫有强烈的杀死作用,在20W的紫外灯下(灯距25cm)照射60分钟或在4—8万Lux的太阳光下照射2天,可以将线虫全部杀死。220V或15000V高压,对该线虫都无击伤作用。
The lethal temperature of Hirschmania oryzae is 51 ° C for 10 minutes. The nematode can survive for up to 30 hours at subzero temperatures but can live for about a month at a temperature at which rice growth is inhibited (40 ° C). The nematode flooded and intolerant of drying, nematodes immersed in sterile water at room temperature astigmatism of 5-32 ° C can survive 185-240 days, but indoors (humidity 70-85%) after natural drying , Can only survive up to 84 hours. The nematode adaptability to pH is very wide, in rice can not survive in pH2.2 and pH12.4 buffer can survive 10-15 days and 20-30 days respectively. Ultraviolet light and direct sunlight have a strong killing effect on the nematodes, killing the nematodes all at 20W UV lamp (lamp 25cm) for 60 minutes or in 4-80000 Lux sunlight for 2 days . 220V or 15000V high pressure, no damage to the nematode effect.