【作者】 赵洪霞； 肖留斌； 谭永安； 吴国强； 柏立新；

【Author】 ZHAO Hong-xia~1,XIAO Liu-bin~2,TAN Yong-an~2,WU Guo-qiang~1,BAILi-xin~(2*) (1.College of Plant Protection,Nanjing Agricultural University,Nanjing,Jiangsu 210095,China; 2.Institute of Plant Protection,Jiangsu Academy of Agricultural Sciences,Nanjing,Jiangsu 210014, China)

【机构】 南京农业大学植物保护学院； 江苏省农业科学院植物保护研究所；

【摘要】 为探明光周期对绿盲蝽种群增殖的影响,本文应用种群生命表的方法(温度(25士1)℃、相对湿度(70士5)%,光照强度4000 Lx,系统研究了绿盲蝽Apolygus lucorum在5个光周期L:D=8::16、10:14、12:12、14:10、16:08下的实验种群的生长发育特性和繁殖能力。结果表明:不同光周期处理下绿盲蝽各虫态存活率、产卵前期及产卵量等均有显著性差异。不同光周期处理下,绿盲蝽最高孵化率(L:D=-10:14)比最低孵化率(L:D=16:8)高25.06%;若虫最高存活率(L:D=8:16)比最低存活率(L:D=16:8)高25.26%;雌成虫最高平均产卵量(L:D=12:12)比最低平均产卵量(L:D=8:16)多27.29粒。综合来看,光周期L:D=12:12处理下的绿盲蝽种群内禀增长率(rm)下最大(0.1093),种群加倍时间(DT)最短(6.3417),表明该光周期处理十分有利于绿盲蝽种群的发育与繁殖。更多还原

【Abstract】 The effects of different photoperiods(L:D=8:16.10:14.12:12.14:10、16:08) on the characteristic of development and fecundity of Apolygus lucorum was studied using life table methods. Apolygus lucorum was reared in climate incubator with temperature(25±1)°C,relative humidity(70±5)°C and illumination intensity 4000 Lx.The survival rates of each stadium、preoviposition duration and fecundity of female adults were significantly different among the five photoperiods.The maximum hatching rate(L:D=10:14) was 25.06%higher than the minimum(L:D=16:8);the highest nymph survival rate(L:D=8:16) was 25.26%higher than the lowest(L:D=16:8);the maximum average fecundity(L:D=12:12) of female adults was 27.29 more than the minimum(L:D=8:16).In the photoperiod L:D=12:12,the intrinsic rates of natural increase(r_m) was the largest(0.1093) while the double time(DT) was the shortest(6.3417) which indicated that the photoperiod L:D=12:12 was very beneficial to development and fecundity of Apolygus lucorum.更多还原