吉林农业大学学报2017，Vol.39Issue(3)：287-291,5.DOI:10.13327/j.jjlau.2017.3168
米蛾卵冷藏温度及时间对稻螟赤眼蜂质量的影响
Effects of Corcyra cephalonica Egg Storage Temperature and Time on Quality of Trichogramma japonicum Ashmead
摘要
Abstract
Trichogramma japonicum Ashmead,an dominant parasitic wasp in paddy field,plays a key role in suppressing natural population of rice stem borers.The effects of cold Corcyra cephalonica eggs (0,3,6,12,20,25,30 and 40 d stored at 0,3,6 and 10 ℃) on capacity of parasitism,emergence and sex ratio were studied.The results indicated that all biological parameters decreased as storage duration increased at various temperatures.When C.cephalonica eggs were stored for 25 d at 0 ℃,the Trichogramma japonicum had no parasitic capability.When C.cephalonica eggs were stored for 25 d at 3 ℃,number of parasitized eggs (0.93),percentage of emergence (21.11％)and sex ratio (0.2 ♀ ∶ 1 ♂) were significantly lower than those of unsorted ones.However,number of parasitized eggs(22-26),percentage of emergence (more than 82％) and sex ratio (6.5 ♀ ∶ 1 ♂) were significantly higher than other treatments when parasitoids were stored for 12 d at 6-10 ℃.To conclude,for mass production of T.japonicum,optimum storage temperature of C.cephalonica eggs is 6-10 ℃,and their storage duration is 12 d.关键词
米蛾卵/冷藏温度/冷藏时间/稻螟赤眼蜂/羽化率Key words
Corcyra cephalonica egg/cold storage temperature/cold storage duration/Trichogramma japonicum/percentage of emergence分类
农业科技引用本文复制引用
胡晓暄,杜文梅,张俊杰,祁颖慧,阮长春..米蛾卵冷藏温度及时间对稻螟赤眼蜂质量的影响[J].吉林农业大学学报,2017,39(3):287-291,5.基金项目
吉林省重点科技攻关项目(20160204010NY) （20160204010NY）
