摘要
对不同密度条件下的扶桑绵粉蚧翅型分化进行了初步探讨。研究发现,扶桑绵粉蚧在温度25±1℃,湿度65%～80%,12 h全光照条件下,取食苗期棉花,种群在低密度时雌雄比例为0.31∶0.11,中等密度时雌雄比例为0.26∶0.17,高密度时雌雄比例为0.52∶0.48。由此可见,随着种群密度的增加,产雄的机率也随之增加。
Primary research on wing type differentiation of Phenacoccus solenopsis Tinsley under equivalent environment condition （25 ± 1 ℃, 65% - 80% RH, 12 hours full light and feed by cotton seedling） , and different densities was studied.. The results showed that female and male proportions were 0. 31： 0. 11 under low population density, 0. 26： 0. 17 under middle population density, and 0. 52：0.48 under high population density. The results indicated that the birth rate of male was increased with the population density.
出处
《作物研究》
2012年第3期268-269,共2页
Crop Research
基金
2010年农业部科技项目
2011年湖南省植保植检站科技项目
关键词
扶桑绵粉蚧
翅型分化
密度
Phenacoccus solenopsis Tinsley
wing type differentiation
Density
