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How bottom-up effects of different tomato cultivars affect population responses of Tuta absoluta (Lep.: Gelechiidae): a case study on host plant resistance
Arthropod-Plant Interactions ( IF 1.6 ) Pub Date : 2020-01-24 , DOI: 10.1007/s11829-020-09739-8
Nasrin Heidari , Amin Sedaratian-Jahromi , Mojtaba Ghane-Jahromi , Myron P. Zalucki

The Gellechiid moth, Tuta absoluta (Meyrick), causes severe problems in many tomato-growing regions worldwide. The present study investigated bottom-up effects under laboratory conditions (25 ± 1 °C, 65 ± 5% R.H., and 16 h L.P.) of six commercial tomato cultivars (‘Rio grand’, ‘Atrak’, ‘Super strain B’, ‘Unigen’, ‘King ston’, and ‘Estern’) on biological traits of this pest. The results obtained evaluated with age-stage, two-sex life table. Duration of different life stages and adult fecundity of this pest were strongly affected by cultivars tested. The highest and lowest mortality of pre-adult stages were estimated on the ‘Atrak’ (36 ± 5%) and ‘King ston’ (15 ± 3%), respectively. Tomato cultivars significantly affected population parameters of T. absoluta. The net reproductive rate (R0) was highest on the ‘King ston’ (97 ± 11.8 offspring/individual). The finite (λ) and intrinsic (r) rates of population increase were dramatically lower on the cultivar ‘Atrak’. Under laboratory conditions, the cultivars ‘Atrak’ and ‘King ston’ had the highest and least resistance level to this pest, respectively. Host plant resistance will be foundational to developing integrated pest management programs.

中文翻译:

不同番茄品种的自下而上效应如何影响绝对马铃薯的种群响应(Lep .: Gelechiidae):以寄主植物抗性为例

Gellechiid蛾,Tuta absoluta (Meyrick),在全球许多番茄种植地区引起严重问题。本研究调查了六个商业化番茄品种('Rio grand','Atrak','Super B株',在实验室条件下(25±1°C,65±5%RH,LP 16 h LP)的自下而上效应。 “ Unigen”,“ King ston”和“ Estern”)关于这种害虫的生物学特性。获得的结果用年龄阶段的两性寿命表进行评估。该害虫的不同生命阶段的持续时间和成虫繁殖力都受到测试品种的强烈影响。估计成年前的最高和最低死亡率分别来自“ Atrak”(36±5%)和“ King ston”(15±3%)。番茄品种显着影响绝对产量。净生殖率(R 0)在“金斯敦”上最高(97±11.8个后代/个人)。品种“ Atrak”的种群增长的有限(λ)和内在(r)比率显着降低。在实验室条件下,“ Atrak”和“ King ston”两个品种对该害虫的抗药性分别最高和最低。寄主植物的抗性将是制定综合有害生物管理计划的基础。
更新日期:2020-01-24
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