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Studies on the resistance of Liposcelis bostrychophila to controlled atmosphere and its ecological fitness
Author(s): 
Pages: 67-71
Year: Issue:  1
Journal: ACTA ENTOMOLOGICA SINICA

Keyword:  嗜卷书虱气调抗性稳定性生态适合度;
Abstract: 于恒温条件下以人工饲料饲养的嗜卷书虱Liposcelis bostrychophila,在35%CO2和1%O2组配的气调环境中以50%左右的选择压力处理,以选育其抗气调性.至30代获得抗性品系(CA-R),抗性倍数达5.6倍,且有继续增强的基因潜能.该抗性品系对气调的抗性不太稳定,在无选择压力的情况下经室内5代饲养,抗性衰退了63.2%.CA-R品系与敏感品系在无气调选择压力的条件下相比具有一定程度的繁殖不利性;但没有发现CA-R品系在生长发育特性上的不利性.以净增殖率来衡量,CA-R品系相对于敏感品系具有0.39的适合度.
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