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在室内25±0.5℃、RH 75%±5%、L:D=14:10条件下,研究了单独和混合接种黄瓜花叶病毒(CMV)、烟草花叶病毒(TMV)的烟株对烟蚜生长发育和繁殖的影响。结果表明,烟蚜取食健康烟株CK、CMV病株、TMV病株及CMV+TMV病株叶碟后,若虫历期分别为6.04、6.26、6.79和8.04天,存活率分别为75.71%、55.84%、70.59%和32.00%,雌成蚜理论最大累积产仔数分别为22.44、6.35、4.99和5.49头,而种群内禀增长率r_m则分别为0.23、0.17、0.15和0.11。与健康烟株相比,接种各类型病毒的烟株对烟蚜种群有明显抑制作用,其中抑制作用最大的是CMV+TMV混合接种的烟株。
Tobacco mosaic strains of cucumber mosaic virus (CMV) and tobacco mosaic virus (TMV) were separately and mixedly studied under the conditions of 25 ± 0.5 ℃, RH 75% ± 5% and L: D = 14:10 indoors Effect on the growth, development and reproduction of Myzus persicae. The results showed that the nymphs duration of the nymphs were 6.04, 6.26, 6.79 and 8.04 days after feeding on leaf discs of healthy tobacco plants CK, CMV, TMV and CMV + TMV, respectively , The survival rates were 75.71%, 55.84%, 70.59% and 32.00%, respectively. The theoretical maximum cumulative litter size of the female adults was 22.44, 6.35, 4.99 and 5 respectively. 49, while the intrinsic rate of increase of population r_m was 0.23,0.17,0.15 and 0.11 respectively. Compared with the healthy tobacco plants, the tobacco plants inoculated with all kinds of viruses had a significant inhibitory effect on the population of the Myzus persicae, among which the CMV + TMV mixed tobacco plants were the most inhibitory.