In this study, sunflower broomrape and Egyptian broomrape, two types of the most harmful Orobanche spp. in Xinjiang, were selected as the control objects to explore the control effect of the rotation regime by the indoor hydroponic experiment and simulated rotation pot experiment. The results showed that in the hydroponic experiment, the germination rates of Egyptian broomrape seeds induced by the root exudates and its ethyl acetate extract from sugar beet, pepper and wheat were all below 20.0％, while those of sunflower broomrape were more than 50.0％. In the simulated rotation pot experiment, the number of parasitic Egyptian broomrape was not significantly reduced by separately rotating sugar beet, pepper and wheat with processed tomatoes, but the number of parasitic sunflower broomrape was significantly reduced by more than 60.0％ through rotating these crops with sunflower. The germination rates of Egyptian broomrape seeds stimulated by the methanol extract from the aboveground of sugar beet, pepper and wheat were less than 10.0％, while those of sunflower broomrape seeds stimulated by the above-ground methanol extract of these three crops were more than 70.0％. The results indicated that the rotation regime in the Yanqi agricultural area cannot effectively control the Egyptian broomrape, but can effectively control the sunflower broomrape.%本研究以新疆地区危害最严重的向日葵列当和瓜列当为研究对象,通过室内水培试验和室外盆栽模拟轮作试验来探究焉耆垦区轮作模式对两种列当的防除效果.结果表明,室内水培试验中各轮作作物的根系分泌物及萃取相刺激瓜列当种子的萌发率均在20.0％以下,但刺激向日葵列当种子产生的萌发率达到了50.0％以上;室外盆栽模拟轮作试验中,甜菜、小麦、辣椒与加工番茄轮作后,瓜列当的寄生数量未显著降低;但与向日葵轮作后,向日葵列当的寄生数量显著减少了60.0％以上.不同品种甜菜、辣椒和小麦地上部甲醇提取液刺激瓜列当种子的萌发率均低于10.0％,但是刺激向日葵列当种子的萌发率均达70.0％以上.本研究表明新疆焉耆垦区轮作种植模式不能有效防除瓜列当,但模式中的轮作作物均能够有效防除向日葵列当.本研究结果为防除新疆焉耆垦区向日葵列当和瓜列当提供理论依据.
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