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采用单头雄虫与不同数量雌虫配比的方法研究了棉花粉蚧Phenacoccus solenopsis Tinsley雄虫的生殖能力。结果表明,与1-7头雌虫配比,雄虫的交配成功率分别为94.4%、91.2%、85.4%、80.7%、77.7%、69.5%、66.2%;产仔雌虫数量与雌雄性比关系符合逻辑斯蒂曲线方程Ff=5.2159EXP(-2.5304EXP(-0.421739N)),1头雄虫平均可以满足4.5头雌虫生殖需要,最多为5.22头;与单头雄虫交配后雌虫总产仔量由358.8头增大至1274.2头,其数量与雌雄性比关系符合S型增长曲线Ft=1524.589e-1.3922/N,总产仔量最大可达1525头;单雌产仔量先由358.8头上升至427.6头,其后逐渐下降至266.5头;子代性比(♀∶♂)变化无规律,为1.13-1.86;子代中雌虫数量由206.1头增大到727.4头,其数量与雌雄性比关系可由Fof=840.1124e-1.2599/N描述,最大值是840头。
The reproductive capacity of male cotton ticks, Acacoccus solenopsis Tinsley, was studied using the ratio of single male to female. The results showed that the mating success rate of males was 94.4%, 91.2%, 85.4%, 80.7%, 77.7%, 69.5%, 66.2% The ratio of logistic curve equation was Ff = 5.2159EXP (-2.5304EXP (-0.421739N)). One male could meet the reproductive needs of 4.5 females on average, up to 5.22; The total litter size increased from 358.8 to 1274.2, and its relationship with the male-female ratio was in accordance with the S-shaped growth curve Ft = 1524.589e-1.3922 / N and the total litter size was up to 1525. The single litter size First increased from 358.8 to 427.6, and then gradually decreased to 266.5; the progeny ratio (♀: ♂) changed irregularly from 1.13 to 1.86; the number of female in the offspring increased from 206.1 to 727.4, The relationship between the number and the male-female ratio can be described by Fof = 840.1124e-1.2599 / N, with a maximum of 840 heads.