桑天牛卵长尾啮小蜂的繁殖生物学研究

编号 zgly0000381264

文献类型 期刊论文

文献题名 桑天牛卵长尾啮小蜂的繁殖生物学研究

作者 黄大庄  刘辉芳  王志刚  杨忠岐  李会平 

作者单位 河北农业大学  河北政法职业学院  中国林业科学研究院森林生态环境与保护研究所 

母体文献 林业科学 

年卷期 2005,41(2)

页码 195-200

年份 2005 

分类号 TP333  Q987 

关键词 生物学研究  啮小蜂  桑天牛  ratio  research  storage  繁殖  with  nature  system  the  and  great  The  sex  for  mode  acme  over  With  cold  host  was  its  new  can  all  Its  in 

文摘内容 The reproduction characteristics of Aprostocetus prolixus, which is a new parasitioid on Apriona germarii, were studied. It demonstrated that the female adult can generate offspring by either sex reproduction or parthenogenesis, but all the offspring were male if they were from the mode of parthenogenesis. The sex ratio, with investigating in nature, was 2.38 : 1. The environmental conditions had notable influence on sex ratio, survival ratio and fecundity. Its sex ratio increased to 3.48 : 1 by feeding complementary nutrition that adding with 20% honey. The temperature has great effect on Aprostocetus prolixus in terms of system research, of which adult longevity decreased with temperature from 17.5 ℃ to 35 ℃ and its ability of reproduction increased between 25 ℃ and 30 ℃ but the acme at 27.5 ℃. Without the feeding complementary nutrition, or, the other hand, the female adult will both lose the ability of fecundity at the temperature below 17.5 ℃ and over 35 ℃. With humidity increasing from 40% to 80%, its fecundity increased significantly. It also showed that there was no significant influence of temperature on fecundity between the 4 ℃ to 8 ℃ when cold storage( i.e. the matured larvae for 90 d, the adults for 10 d and the host egg for 40 d)。