腐食酪螨对低氧高二氧化碳气调的抗性

DEVELOPMENT OF RESISTANCE OF TYROPHAGUS PUTRESCENTIAE TO CONTROLLED ATMOSPHERE

在10％CO_2,5％O_2(其余部分为N_2,下同);35％CO_2,11％CO_2;35％CO_2,21％O_2;75％CO_2,11％O_2,及75％CO_2,21％O_2,五种气调环境下对腐食酪螨Tyrophagus putrescentiae(Schrank)进行连续25～26代的抗气性诱导筛选。结果表明,抗性都有不同程度的增加,在75％CO_2,11％O_2下抗性系数最大为5.0,在10％CO_2,5％O_2下抗性系数最小为3.7,在其它气调环境下,抗性系数都在4以上。

Laboratory induced resistance of successive 25—26 generations of Tyrophagus putrecentiae to the gas under the controlled atmosphere(N_2 as the balance gas) as follows; 10％CO_2, 5％O_2; 35％CO_2; 11％O_2; 35％CO_2, 21％O_2; 75％CO_2, 11％O_2, 75％CO_2, 21％O_2。The results showed: the resistant ability to the gas has been increased. RF(Resistant Factor) was the highest 5 under 75％CO_2, 11%O_2; The lowest 3.7under 10％O_2, 5％O_2; The other RFs were up to 4.All increases ments of resistance can be expressed by Logistical equation.