光周期对两种色型豌豆蚜种群参数的影响

发布时间：2018-04-25 15:51

本文选题：光周期 + 豌豆蚜　；参考：《生态学报》2016年14期

【摘要】：为探讨光周期对红绿两种色型豌豆蚜种群增长的影响,于室内模拟光周期22L∶2D、16L∶8D、10L∶14D和4L∶20D四个水平,研究了红绿两种色型豌豆蚜的发育、繁殖和生命表。结果表明:相对于其它光周期,在光周期22L∶2D时,红绿两种色型豌豆蚜若蚜存活率最高,繁殖力最强;其红色型豌豆蚜种群增长内禀增长率(r_m=0.3263)高于绿色型豌豆(r_m=0.2863)。光周期16L∶8D时,红色型豌豆蚜的若蚜存活率(72.22%)高于绿色型豌豆蚜(69.45%),而成蚜寿命(6.58d)较短;但绿色型豌豆蚜内禀增长率(r_m=0.2648)高于红色型豌豆蚜(r_m=0.2249),其种群繁殖力强。光周期10L∶14D时,红色型豌豆蚜与绿色型豌豆蚜相比,若蚜存活率(80.55%)高,内禀增长率(r_m=0.2490)高,种群增长力强,而绿色型豌豆蚜成蚜寿命(12.71d)较长。光周期4L∶20D时,两种色型豌豆蚜若蚜存活率最低,繁殖力最弱,成蚜寿命显著延长;红色型豌豆蚜若蚜存活率(64.67%)高于绿色型(35.50%),成蚜没有产生后代;绿色型豌豆蚜内禀增长率(r_m=-0.0366),其种群为负增长。综上,短光照条件(4L∶20D)延长了两种色型豌豆蚜的若蚜发育历期及成蚜寿命,降低了若蚜存活率、繁殖力及生命表各项参数;长光照条件(22L∶2D)缩短了两种色型豌豆蚜的若蚜发育历期及成蚜寿命,若蚜存活率高、繁殖力强;红色型豌豆蚜更适宜光周期10L∶14D,而绿色型豌豆蚜更适宜光周期16L∶8D。
[Abstract]:In order to study the effect of photoperiod on the population growth of two color pea aphids, the development, reproduction and life table of the two types of green and red pea aphids were studied by simulating the photoperiod at the levels of 22L: 2D1: 16L8 DX 10L: 14D and 4L:20D. The results showed that, compared with other photoperiod cycles, the red and green type aphids had the highest survival rate and the strongest fecundity when compared with other photoperiod 22L:2D, and the intrinsic growth rate of the red pea aphid was 0.3263), which was higher than that of the green type pea aphid 0.2863. In photoperiod 16L:8D, the survival rate of red pea aphids (72.22) was higher than that of green pea aphids (69.45d), but the life span of adult pea aphids was 6.58d), but the intrinsic growth rate of green pea aphids (0.2648) was higher than that of red pea aphids (0.2249). In photoperiod 10L:14D, the survival rate of red pea aphids was higher than that of green pea aphids (80.55), the intrinsic growth rate of aphids was 0.2490), the population growth capacity was strong, and the life span of green pea aphids was 12.71d). In photoperiod 4L:20D, the survival rate of the two colored pea aphids was the lowest, the fecundity was the weakest, and the adult life span was significantly prolonged, and the survival rate of the red type pea aphids was 64.67%, which was higher than that of the green aphids (35.50%), and the adult aphids did not produce offspring. The intrinsic growth rate of green pea aphids was 0. 036 6%, and its population increased negatively. In conclusion, the short light condition (4L: 20D) prolonged the development period and adult life of the two color pea aphids, and reduced the survival rate, fecundity and life table parameters of the aphids. The long light condition (22L: 2D) shortened the developmental period and adult life of the two color pea aphids, and the red pea aphids were more suitable for light cycle 10L: 14D, while the green pea aphids were more suitable for the photoperiod 16L: 8D.
【作者单位】：甘肃农业大学资源与环境学院;甘肃农业大学草业学院;
【基金】：高等学校博士学科点专项科研基金博导类资助课题(20136202110007) 国家自然科学基金项目(31260433)
【分类号】：S433

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