魏迎凤, 张全成, 查慧, 王小丽, 王俊刚. 新疆棉田杂草龙葵对二甲戊灵的抗性水平及多抗性测定[J]. 农药学学报, 2022, 24(6): 1425-1433. DOI: 10.16801/j.issn.1008-7303.2022.0059
    引用本文: 魏迎凤, 张全成, 查慧, 王小丽, 王俊刚. 新疆棉田杂草龙葵对二甲戊灵的抗性水平及多抗性测定[J]. 农药学学报, 2022, 24(6): 1425-1433. DOI: 10.16801/j.issn.1008-7303.2022.0059
    WEI Yingfeng, ZHANG Quancheng, ZHA Hui, WANG Xiaoli, WANG Jungang. Determination of resistance level and multi-resistance to pendimethalin of weed Solanum nigrum L. in Xinjiang cotton fields[J]. Chinese Journal of Pesticide Science, 2022, 24(6): 1425-1433. DOI: 10.16801/j.issn.1008-7303.2022.0059
    Citation: WEI Yingfeng, ZHANG Quancheng, ZHA Hui, WANG Xiaoli, WANG Jungang. Determination of resistance level and multi-resistance to pendimethalin of weed Solanum nigrum L. in Xinjiang cotton fields[J]. Chinese Journal of Pesticide Science, 2022, 24(6): 1425-1433. DOI: 10.16801/j.issn.1008-7303.2022.0059

    新疆棉田杂草龙葵对二甲戊灵的抗性水平及多抗性测定

    Determination of resistance level and multi-resistance to pendimethalin of weed Solanum nigrum L. in Xinjiang cotton fields

    • 摘要: 为明确新疆棉田杂草龙葵对二甲戊灵的抗性水平及对其他常用土壤处理型除草剂的多抗性,本研究分别采用培养皿种子检测法和整株植物检测法,测定了采自新疆不同地区的56个龙葵种群对二甲戊灵的抗性,比较了两种检测方法的差异;依据整株植物检测法的结果,分别选取敏感 (SHZ-8)、中抗 (CJ-2)及高抗 (BL-1) 3个种群,测定了其对扑草净、乙氧氟草醚和丙炔氟草胺的多抗性。结果表明:两种方法检测结果的抗性趋势一致,新疆龙葵对二甲戊灵的整体抗性水平为北疆 > 南疆、东疆,但培养皿种子检测法的抗性指数普遍低于整株植物检测法。培养皿检测法的敏感、低抗、中抗和高抗种群分别占总数的12.5%、71.4%、12.5%和3.6%,整株检测法中该指标分别为5.4%、73.2%、16.0%和5.4%;两种方法检测结果均表明,新疆棉田龙葵对二甲戊灵大多为低到中抗水平。相较于敏感种群SHZ-8,BL-1种群在两种检测方法中相对抗性均最高:培养皿种子检测法的GR50值为90.30 mg/L,抗性指数为20.62;整株植物检测法的GR50值为4805 g/hm2,抗性指数为26.20。多抗性研究发现,BL-1种群对丙炔氟草胺产生了多抗性,而WJQ-2种群对乙氧氟草醚、丙炔氟草胺和扑草净均未产生多抗性。

       

      Abstract: In order to clarify the resistance level of weed Solanum nigrum L. to pendimethalin and its multi-resistance to other commonly used soil-treatment herbicides in Xinjiang cotton fields, 56 S. nigrum populations from different regions of Xinjiang were tested by the petri dish method and the whole plant method and the differences between the two detection methods were compared. According to the results of the whole plant method, three populations of sensitive (SHZ-8), medium resistance (CJ-2), and high resistance (BL-1) were selected to determine multi-resistance to prometryn, oxyfluorfen, and flumioxazin, respectively. The result showed that the resistance trend of the two methods was the same, and the resistance level of S. nigrum showed northern Xinjiang > southern and eastern Xinjiang, but the resistance index measured by the petri dish method was generally lower than that by the whole plant method. The results of the petri dish method showed that sensitive, low-resistance, medium-resistance, and high-resistance populations accounted for 12.5%, 71.4%, 12.5%, and 3.6% of the total populations, respectively. Whereas the corresponding ratios of the whole plant method were 5.4%, 73.2%, 16.0%, and 5.4%. The results of both methods are consistent and indicate that the resistance of S. nigrum to pendimethalin in Xinjiang cotton fields was mostly low to medium resistance. Compared with the sensitive population SHZ-8, the BL-1 population showed the highest relative resistance in both methods: the GR50 value tested by the petri dish method was 90.30 mg/L and the resistance index was 20.62; the GR50 value tested by the whole plant method was 4805 g/hm2 and the resistance index was 26.20. The multi-resistance study found that the BL-1 population had multi-resistance to flumioxazin, while the WJQ-2 population did not develop multi-resistance to prometryn, oxyfluorfen, and flumioxazin.

       

    /

    返回文章
    返回