Developmental Threshold Temperature and Effective Accumulated Temperature of Lysiphlebus testaceipes Cresson

查看全文 作　　者：Sun [1,2]Chengpeng;Li [1]Gangtie;Liu [2]Aiping 机构地区：[1]College of Desert Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010010, China;[2]Grassland Research Institute, Chinese Academy of Agricultural Sciences , Hohhot 010010,China 出　　处：《Plant Diseases and Pests》索引2017年第8卷第4期,共4页 基　　金：Supported by National Key R&D Project“Prevention and Control Techniques and Product Development of Natural Enemies”(SQ2017ZY060059) 摘　　要：[Objective]The paper was to study the occurrence regularity of Lysiphlebus testaceipes Cresson. [Method]With Aphis craccivora Koch as the breeding host,developmental duration,development threshold temperature and effective accumulative temperature of L. testaceipes Cresson were studied at six constant temperatures of 12,16,20,24,28 and 32℃ in the laboratory,respectively. [Result]The developmental durations of each growth stage of L. testaceipes Cresson were shortened with the increasing temperature ranged from 12 to 32℃,and the growth rate was significantly accelerated with the increasing temperature. However,when the temperature was up to 32℃,the growth and development from mummy to adult was suppressed,and the developmental duration was extended for 0. 45 d than that at 28℃. The developmental durations from egg to adult at 12,16,20,24,28 and 32℃ were 38. 50,21. 25,14. 11,12. 17,10. 28 and 9. 01 d,respectively.The developmental threshold temperatures of egg-mummy,mummy-adult and egg-adult were estimated to be 6. 5,6. 25 and 5. 36℃,respectively; and the effective accumulated temperatures were 136. 28,75. 74 and 227. 23 d·℃,respectively. [Conclusion] Forecast formula of developmental duration and Logistic models were established according to effective accumulated temperature and developmental threshold temperature. 关 键 词：滞育期 抗寒物质 量变 蛋白质含量 甘油含量 碳水化合物 甘油浓度 最大值