悬铃木方翅网蝽越冬种群的过冷却点测定
Supercooling point of the overwintering populations of Corythucha ciliata
刘亚军，李传仁**
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作者单位：长江大学农学院 湖北 荆州 434025
中文关键词：悬铃木方翅网蝽， 地理种群， 过冷却点
英文关键词：Corythucha ciliata, geographical population, su percooling points
中文摘要：
测定了悬铃木方翅网蝽Corythucha ciliata (Say)2个地理种群(湖北荆州种群 和河南郑州种群)的过冷却点，结果表明，荆州种群1日龄和5日龄成虫的过冷却点分别为-1 6.519 ℃和-21.646 ℃，而郑州种群1日龄和5日龄成虫的过冷却点为-17.329 ℃和-21.617 ℃。2个地理种群的过冷却点没有明显差异，但同一地理种群 1日龄和5日龄成虫间的 过冷却点差异显著。
英文摘要： The supercooling points (SCPs) of two geographical populations (Jingzh ou, Hubei Province; Zhengzhou, Henan Province) of Corythucha ciliata (Say) w as e xperimentally tested. The results showed that the SCPs of 1-day adults and 5-d ay adults were -16.519 ℃ and -21.646 ℃, respectively, in Jingzhou population , an d -17.329 ℃ and -21.617 ℃, respectively, in Zhengzhou population. The SCPs bet ween two geographical populations had no significant difference, but in same geo graphical population, the SCPs between 1-day adult and 5-day adults had signif icant difference.