摘要
将截形叶螨Tetranychus truncatus Ehara分别置于15℃、20℃、25℃、30℃和35℃的恒温箱内，观察温度对其实验种群繁殖的影响。结果表明：不同温度对子代雌雄性比的影响差异不一致，15℃与其它各温度、20℃与35℃的子代雌雄性比均有极显著的差异；20℃与30℃下的子代雌雄性比有显著的差异；20℃与25℃、25℃与35℃、25℃与30℃、30℃与35℃下的子代雌雄性比无显著差异。截形叶螨寿命、产卵期均随着温度的升高而缩短；截形叶螨在25℃时产卵量最高，因此25℃是该螨产卵繁殖的最适温度；30℃～35℃是种群繁殖增长的最适温度。
The effect of temperature on fecundity of the population of Tetranychus truncatus was investigated in laboratory by keeping the mites in the constant temperature cabinets of 15℃, 20℃, 25℃, 30℃ and 35℃ respectively. The results showed the temperature had different influences on the sex ratios of offsprings within 30℃～ 35℃. The sex ratios of offsprings were significant different between 15℃ and other temperature, and between 20℃ and 35℃. Between 20℃ and 30℃, significant differences on sex ratios were also observed. But, there exhibited no significant differences between 20℃ and 25℃, between 2.5℃ and 35℃, between 25℃ and 30℃, and between 30℃ and 35℃. Both the adult longevity and the oviposition period decreased when the temperature increased. The mites had the highest egg productivity under 25℃, which therefore regarded as the most suitable temperature for oviposition. The optimal temperature for their population reproduction was considered to be within 30℃ ～ 35℃.
出处
《内蒙古农业大学学报（自然科学版）》
CAS
2008年第1期32-35,共4页
Journal of Inner Mongolia Agricultural University(Natural Science Edition)
基金
内蒙古科委“九五”攻关项目资助(编号:980101)
关键词
温度
截形叶螨
实验种群
繁殖
Temperature
experimental population
fecundity
tetranychus truncatus
