短时高温处理桃小食心虫雌成虫的生殖力及卵巢发育  

Fecundity and Ovary Development of Peach Fruit Borer Under Short-term High Temperature

作　　者：贾向风 王洪平[1] 

机构地区：[1]沈阳农业大学植物保护学院,辽宁沈阳110866

出　　处：《贵州农业科学》2014年第6期73-75,共3页Guizhou Agricultural Sciences

基　　金：国家公益性行业(农业)科研专项经费项目"北方果树食心虫综合防控技术研究与示范推广"(201103024)

摘　　要：为探明短时高温与桃小食心虫生殖力和卵巢发育的相互关系,选择24h内羽化的桃小食心虫雌成虫,采用不同高温(31℃、34℃和37℃)短时(1h、4h和8h)处理,研究其生殖力和卵巢发育等指标变化。结果表明:1)不同高温处理1h和4h对桃小食心虫的生殖力无明显影响;但随着温度升高和时间延长,对桃小食心虫产卵量和卵孵化率影响呈显著上升。其中,37℃8h处理的生殖力较对照下降41%,孵化率下降44%。2)高温处理抑制了桃小食心虫的卵巢发育,使卵巢管长度和卵巢鲜重有不同程度的下降,与对照相比,34℃8h和37℃8h处理的卵巢长度分别下降28%和35%,卵巢鲜重分别下降28%和29%。The emerged female adults of peach fruit borer within 24 hours were treated under different high temperature（31℃,34℃ and 37℃）for different treatment time （1 h,4 h and 8 h）to study the effects of short-term high temperature on fecundity and ovary development of peach fruit borer.The results showed that：1）Different high temperature for 1 h and 4 h treatment time had no significant effect on the fecundity but the effects of temperature and treatment time on the fecundity and hatchability of peach fruit borer rose significantly with increase of temperature and treatment time and the fecundity and hatchability of the emerged female adults under 37℃ for 8 h reduced by 41% and 44% compared with CK respectively;2）High temperature resulted in decline of ovary tube length and fresh ovary weight to varying degrees and the ovary tube length and fresh ovary weight of the emerged female adults of peach fruit borer treated under 34℃ for 8 h and 37℃ for 8 h reduced by 28% and 28%,and 35% and 29% compared with CK respectively.

关 键 词：桃小食心虫 短时 温度 卵巢发育 生殖 

分 类 号：S436.621[农业科学—农业昆虫与害虫防治]