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期 刊 ：植物保护学报 2011年

关键词：油菜-小麦邻作；单作；麦蚜；种群动态；

Keywords:wheat planted adjacent to rape, monoculture, wheat aphid, population dynamics,

摘 要 ：为了探讨油菜-小麦邻作模式对麦蚜种群动态的控制作用,2009—2010年将小麦田和油菜田交界处设为0 m,在距0 m处2、4、6、8、16 m(包括0 m)处设立试验小区,记录麦蚜数量。邻作小麦田距离油菜田16 m处的无翅麦蚜数量最多,且与其它距离差异显著(P<0.05),而单作小麦田中各距离之间差异不显著(P>0.05);距离油菜田8~16 m处,小麦邻作田麦蚜数量的降低百分率骤减,分别从2009年的26.91%降低到1.02%和2010年的22.72%降低到0.53%。初步表明该邻作模式可以控制小麦田8 m以内的蚜虫数量。

Abstract:The experiment explored and compared the effects of aphid population dynamics between in the fields of wheat planted adjacent to rape and of wheat monoculture. In the experiment, the junction of wheat and rape fields was considered 0 m as base, and the test regions in 2, 4, 6, 8, 16 m away from the base (including 0 m) were established, in which the quantity of aphids was recorded. The results showed that the number of wheat aphids at 16 m was the highest than any other distances with statistically significant difference (P<0.05) in the wheat field of adjacent culture. But there was no significant differences in monoculture wheat field (P>0.05). In the wheat fields of adjacent culture from 8 to 16 m, the decrease percentage of aphid numbers decreased dramatically, from 26.91% to 1.02% in 2009 and 22.72% to 0.53% in 2010. It primarily indicates that wheat planted adjacent to rape can control numbers of aphid within 8 m in wheat field.

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