干旱区生态环境知识资源中心(Arid): 中红侧沟茧蜂滞育诱导和滞育茧的冷藏

Arid

	中红侧沟茧蜂滞育诱导和滞育茧的冷藏
其他题名	Diapause induction and cold storage of diapause cocoons in Microplitis mediator(Haliday)
	浑之英; 王德安; 路子云; 潘文亮
来源期刊	昆虫学报
ISSN	0454-6296
出版年	2005
卷号	48 期号:5 页码:655-659
中文摘要	中红侧沟茧蜂Microplitis mediator(Haliday)是夜蛾科害虫低龄幼虫的重要寄生蜂.田间实验表明,在冀中地区秋季田间条件下,当日平均气温为21.5℃、日平均光照时间为12 h 33 min时,少数个体进入滞育;当气温降至17.9℃以下、日光照时间缩短到11 h 45 min以下时,全部个体进入滞育.室内模拟实验结果表明,在17～26℃、光照时间10～14 h范围内,随着温度的降低和光照时间的缩短,滞育率明显提高.高温能抵消短光照对滞育诱导的影响,在26℃下,短光照不能诱导滞育.因此,低温和短光照是诱导该种天敌昆虫滞育的主要因子.中红侧沟茧蜂感受滞育信号的敏感期为低龄幼虫期,以预蛹(茧)进入滞育.低龄幼虫感受滞育信号以后,需要在滞育环境中发育到老熟幼虫才能全部进入滞育.将室内诱导的滞育茧在4℃左右环境条件下冷藏240天,成蜂的羽化率和寄生能力与没有冷藏的非滞育茧差异不显著;冷藏300天,滞育茧仍有81.4%可以正常羽化.本项研究结果为中红侧沟茧蜂的规模化、标准化生产提供了科学的依据.
英文摘要	Microplitis mediator (Holiday) is an important natural enemy to parasitize young larvae of some molhs of Noctuidae (Lepidoptera) . The results of field tests showed lhat in the middle region of Hebei province, when the daily averuge temperature was 21.5^ and the daily average day length was 12 hours and 33 minutes, a few of M . mediator entered diapause. When the daily average temperature was below 17.9X. and day length was shorter lhan 11 hours and 45 minutes, all of M. mediator entered diapause. The results of simulation test in the Laboratory showed that when the temperature was between 17-26CC and day length was 10- 14 hours, the diapause rale significantly increased with the decrease of temperature and day length. High temperature counteracted the effect of short day length. When the temperature is 26^C , photoperiod had no effect on diapause. Thus, lower temperature and shorter day length were the major factors to induce diapause of the parasitoid. The parasitoid accepted the signal for diapause at the young larvae stage arid entered diapause at the pre-pupa stage (cocoon) . All pre-pupae entered diapause only if the young larvae had been x-eared in the temperature and the photoperiod for diapause induction till mature larvae. The emergence rate and the parasitic ability showed no significant difference between adults emerged from the diapause cocoons stored in the temperature of 4 2X, for 240 days and those from the non-diapause cocoons without cold storage. After 300 days cold storage ^ tne emergence rale of the diapause cocoons could still reach to 81.4% .
中文关键词	中红侧沟茧蜂 ; 滞育诱导 ; 光周期 ; 温度 ; 滞育茧 ; 冷藏
英文关键词	Microplitis mediator diapause induction photoperiod temperature diapause cocoons cold storage
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENTOMOLOGY
WOS研究方向	Entomology
CSCD记录号	CSCD:2043185
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206411
作者单位	河北省农林科学院植物保护研究所, 保定, 河北 071000, 中国
推荐引用方式 GB/T 7714	浑之英,王德安,路子云,等. 中红侧沟茧蜂滞育诱导和滞育茧的冷藏[J],2005,48(5):655-659.
APA	浑之英,王德安,路子云,&潘文亮.(2005).中红侧沟茧蜂滞育诱导和滞育茧的冷藏.昆虫学报,48(5),655-659.
MLA	浑之英,et al."中红侧沟茧蜂滞育诱导和滞育茧的冷藏".昆虫学报 48.5(2005):655-659.