摘要
为明确低温对绿盲蝽生长发育和繁殖的影响,于室内观察了绿盲蝽(Apolygus lucorum)经低温(0、5、10、15 ℃)处理后若虫发育、成虫寿命及生殖参数的变化.结果表明,绿盲蝽若虫羽化率随温度降低而显著下降,0 ℃和5 ℃低温下多数若虫未羽化即死亡,10 ℃和15 ℃处理的羽化率分别是26 ℃对照的19.10％和75.71％.低温显著延长绿盲蝽若虫历期,10 ℃和15 ℃低温下若虫历期分别是26 ℃对照的1.80和1.33倍.绿盲蝽雌雄成虫寿命在0 ℃～26 ℃随温度升高先延长后缩短,在10 ℃时达到最高值,分别是31.75 d和30.61 d.雌虫产卵量和卵孵化率随温度的降低而显著下降;5 ℃、10 ℃和15 ℃处理的产卵量分别是26 ℃对照的3.92％、34.53％和51.56％;5 ℃低温处理下没有卵孵化,10 ℃和15 ℃处理下卵孵化率分别是26 ℃对照的8.12％和21.36％.以上研究结果表明,低温抑制绿盲蝽若虫羽化这一变态发育过程,且随处理温度的降低,抑制程度增加;同时,低温对成虫生殖也有抑制作用,抑制程度随温度降低而增加.
Abstract
To investigate the effect of low temperature on the growth,development and reproduction of Apolygus lucorum,we measured the nymph development,adult lifespan and fecundity in the labo-ratory under low temperature stress(0,5,10 and 15 ℃).The results showed that the eclosion rate of nymph decreased significantly with decreasing temperature.Most nymph died before eclosion at 0 ℃ and 5 ℃,and the eclosion rate at 10 ℃ and 15 ℃ was 19.10％and 75.71％of that at 26 ℃,respective-ly.The duration of nymph at low temperature was significantly prolonged.The duration of nymph at low temperature of 10 ℃ and 15 ℃ was 1.80 and 1.33 times that of control at 26 ℃,respectively.From 0 ℃ to 26 ℃,the longevity of male and females first increased and then decreased with increas-ing temperature,reaching the highest value at 10 ℃,which were 31.75 days and 30.61 days,respec-tively.The number of eggs laid by female and the rate of egg hatching decreased significantly with de-creasing temperature.The oviposition of A.lucorum at 5 ℃,10 ℃ and 15 ℃ was 3.92％,34.53％and 51.56％of the control at 26 ℃,respectively.No eggs hatched at 5 ℃,and the hatching rate at 10 ℃ and 15 ℃ was 8.12％and 21.36％of that at 26 ℃,respectively.All the results showed that low tem-perature inhibited the eclosion of A.lucorum nymph,and the degree of inhibition increased with the decrease in treatment temperature.At the same time,low temperature also suppressed adult reproduc-tion,and the degree of inhibition increased with decreasing temperature.
维普
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