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2012年49 No.4
Effects of cotton cultivars on the population dynamics and populationparameters of Tetranychus turkestani
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Key Words：cotton leaf mite，cotton cultivars，population parameters
Abstract：Tetranychus turkestani (Vgorag et Nikolski) is a dominant pest mite species on cotton in Xinjiang． Population
dynamics and life table parameters of T． turkestani on 6 main cotton cultivars in Xinjiang were compared． Population
densities of T． turkestani were lower on Xinhai 21 and Xinluzao 26，and those of T． turkestani were higher on the Biaoza
A1 81-3，Xinluzao 21 and 297-5． The development duration of each immature stage of T． turkestani on Xinhai 21，
Xinluzao 12，Xinluzao 26 were longer，the fecundity were lower，population trend index were lower，but there were the
opposite effect on the Biaoza A1，297-5，81-3．