
Glyphosate Resistance of Digitaria sanguinalis and Amaranthus retroflexus
CHEN Shihong, RAN Haiyan, LAN Xianmin, HE Xiulong, YE Zhaochun
Glyphosate Resistance of Digitaria sanguinalis and Amaranthus retroflexus
The aim is to clarify the glyphosate resistance level of Digitaria sanguinalis and Amaranthus retroflexus from farmland in Guizhou, and to provide a theoretical basis for the resistance management of weeds. 32 populations of D. sanguinalis and 30 populations of A. retroflexus were used as experimental materials. The whole plant pot method was used to determine the fresh weight inhibition rate of glyphosate on the aboveground parts of weeds after two weeks of drug application. The results showed that: the sensitivity of D. sanguinalis population in Liuhe village of Qixingguan District of Bijie was the lowest, with ED50 value of 16.23 g a.i/hm2, and the relative resistance ratios of other populations ranged from 1.0 to 5.3, 12 populations of D. sanguinalis were in the sensitive stage, 17 populations had low level of resistance, and 1 population had medium level of resistance. The ED50 value of A. retroflexus population in Shuangping township of Hezhang County was the lowest, with ED50 value of 15.38 g a.i/hm2, the relative resistance ratios of other populations ranged from 1.0 to 9.0, 12 populations of A. retroflexus were in the sensitive stage, 14 populations had low level of resistance, and 4 populations had medium level of resistance. In conclusion, different populations of D. sanguinalis and A. retroflexa have different degrees of resistance to glyphosate in Guizhou Province, but most of them are in the sensitive stage or low drug resistance level.
Digitaria sanguinalis / Amaranthus retroflexus / glyphosate / drug resistance {{custom_keyword}} /
表1 马唐和反枝苋采集信息 |
马唐 | 反枝苋 | 采集地点 | 采集区域 | 采集时间 |
---|---|---|---|---|
MS1 | / | 遵义市八七厂旁 | 黔北 | 2018年 |
MS2 | / | 余庆县龙家镇大桥村 | 黔北 | 2018年 |
MR1 | FR3 | 开阳县南龙乡翁朵村 | 黔中 | 2018年 |
MR2 | FR2 | 贵州省农科院马铃薯试验地 | 黔中 | 2018年 |
MR3 | / | 惠水县大龙镇 | 黔中 | 2018年 |
MR4 | / | 安龙县黔湘乡大桥村 | 黔西 | 2018年 |
MR5 | / | 贞丰县北盘江镇北盘江村 | 黔西 | 2018年 |
MR6 | / | 松桃县正大镇尖坡村 | 黔东 | 2018年 |
MR7 | FR5 | 思南县鹦鹉镇东华乡 | 黔东 | 2018年 |
MR8 | FR4 | 贵州省农科院园艺所试验地 | 黔中 | 2018年 |
MR9 | / | 瓮安县建中镇 | 黔中 | 2018年 |
MR10 | FR6 | 福泉市黄丝镇 | 黔南 | 2018年 |
MR11 | / | 麻江县龙山镇大塘村 | 黔东 | 2018年 |
MR12 | FR8 | 麻江县宣威镇公路边 | 黔东 | 2018年 |
MR13 | FR9 | 丹寨县兴仁镇烧茶村 | 黔东 | 2018年 |
MR14 | FR10 | 独山县城区 | 黔东 | 2018年 |
MR15 | / | 平塘县牙舟镇卡曼村 | 黔南 | 2018年 |
MR16 | FR12 | 惠水县好花红镇满定村 | 黔中 | 2018年 |
MR17 | FR13 | 普定县化处镇撸仁村 | 黔中 | 2018年 |
MR18 | / | 六枝特区木岗镇 | 黔西 | 2018年 |
MR19 | FR14 | 安顺市天龙镇 | 黔中 | 2018年 |
马唐 | 反枝苋 | 采集地点 | 采集区域 | 采集时间 |
MR20 | FR15 | 湄潭县西河镇 | 黔北 | 2018年 |
MR21 | FR19 | 正安县谢坝乡谢坝村 | 黔北 | 2018年 |
MR22 | FR18 | 开阳县南龙乡佘家营村 | 黔中 | 2018年 |
MR23 | / | 清镇红枫湖右二村 | 黔中 | 2018年 |
MR24 | FR26 | 修文县城区 | 黔中 | 2019年 |
MR25 | FR27 | 黔西县林泉镇海子村 | 黔西 | 2019年 |
MR26 | FR22 | 息烽县石硐镇红星村 | 黔中 | 2019年 |
MR27 | FR24 | 威宁县盐仓镇 | 黔西 | 2019年 |
MR28 | FR28 | 大方县六龙镇六龙村 | 黔西 | 2019年 |
MR29 | FR25 | 金沙县禹溪镇金坝村 | 黔西 | 2019年 |
MR30 | / | 平塘县白龙乡黄平村 | 黔南 | 2019年 |
MR31 | FR21 | 毕节市七星关区六合村 | 黔西 | 2019年 |
/ | FR1 | 修文县小箐乡下小沟 | 黔中 | 2019年 |
/ | FS1 | 余庆县龙家镇大桥村 | 黔北 | 2019年 |
/ | FR7 | 麻江县城区 | 黔东 | 2019年 |
/ | FR11 | 平塘县甘寨乡 | 黔南 | 2019年 |
/ | FR16 | 紫云县松山镇红岩村 | 黔中 | 2019年 |
/ | FR23 | 赫章县双坪乡 | 黔西 | 2019年 |
表2 不同马唐种群对草甘膦的抗药性 |
采集区域 | 编号 | 毒力回归方程(y=) | 抑制中剂量ED50/ (g a.i./hm2) | 相关系数 | 95%置信限 | 相对抗性倍数 |
---|---|---|---|---|---|---|
黔北 | MS1 | 1.7159x+2.0286 | 53.90 | 0.9993 | 47.0842-61.7130 | 3.3 |
MS2 | 2.5775x+0.7076 | 46.27 | 0.9938 | 34.6145-61.8514 | 2.9 | |
MR20 | 1.7294x+1.8952 | 62.41 | 0.9561 | 39.3308-99.0375 | 3.8 | |
MR21 | 1.1147x+3.3208 | 32.10 | 0.9974 | 27.3497-37.6756 | 2.0 | |
黔东 | MR6 | 2.1106x+1.7191 | 64.62 | 0.9933 | 56.4352-73.9862 | 4.0 |
MR7 | 2.0003x+1.6292 | 48.41 | 0.9764 | 34.3459-68.2423 | 3.0 | |
MR11 | 2.5776x+0.3420 | 64.14 | 0.9703 | 38.5635-106.6740 | 4.0 | |
MR12 | 1.1500x+2.8116 | 79.97 | 0.9658 | 59.3322-107.7903 | 4.9 | |
MR13 | 1.4479x+2.7382 | 36.48 | 0.9693 | 22.7875-58.4022 | 2.2 | |
MR14 | 1.3830x+3.0321 | 26.48 | 0.9992 | 24.2234-28.9548 | 1.6 | |
黔南 | MR10 | 1.5074x+2.7412 | 31.51 | 0.9999 | 30.0546-32.5103 | 1.9 |
MR15 | 4.0062x+1.4942 | 56.10 | 0.9988 | 52.3766-60.0833 | 3.5 | |
MR30 | 1.4155x+2.4156 | 66.96 | 0.9681 | 48.2490-92.9184 | 4.1 | |
黔西 | MR4 | 2.2409x+1.1899 | 50.15 | 0.9994 | 41.1376-54.5138 | 3.1 |
MR5 | 1.5778x+2.1314 | 65.78 | 0.9959 | 54.8312-78.9211 | 4.1 | |
MR18 | 1.1773x+3.4842 | 19.39 | 0.9579 | 8.9169-42.1555 | 1.2 | |
MR25 | 3.3044x+0.7784 | 80.23 | 0.9795 | 63.2814-101.7062 | 4.9 | |
MR27 | 1.0771x+3.5584 | 21.80 | 0.9905 | 14.9754-31.9280 | 1.3 | |
MR28 | 1.3278x+3.1649 | 24.11 | 0.9961 | 19.2797-30.1388 | 1.5 | |
MR29 | 1.3906x+2.7516 | 41.38 | 0.9827 | 29.9508-57.1830 | 2.5 | |
MR31 | 1.1537x+3.6035 | 16.23 | 0.9825 | 8.7720-30.0424 | 1.0 | |
黔中 | MR1 | 1.2462x+3.2530 | 25.23 | 0.998 | 21.5799-29.4912 | 1.6 |
MR2 | 2.1009x+1.9654 | 27.39 | 0.9943 | 21.3645-35.1007 | 1.7 | |
MR3 | 2.0912x+1.1963 | 65.90 | 0.9498 | 43.2536-100.4029 | 4.1 | |
MR8 | 1.8394x+2.0970 | 37.86 | 0.9698 | 23.9882-59.7597 | 2.3 | |
MR9 | 1.2634x+3.1122 | 31.51 | 0.9297 | 13.9311-69.89990 | 1.9 | |
MR16 | 1.9716x+1.7956 | 42.20 | 0.9629 | 26.2375-67.8710 | 2.6 | |
MR17 | 1.2628x+2.9383 | 42.92 | 0.9973 | 37.1179-49.6201 | 2.6 | |
MR19 | 1.8909x+1.6831 | 56.77 | 0.9878 | 43.0631-74.8459 | 3.5 | |
MR22 | 2.2574x+0.9801 | 60.37 | 0.9917 | 50.6882-71.8953 | 3.7 | |
MR23 | 1.4573x+2.8457 | 30.08 | 0.9623 | 16.7113-54.1424 | 1.9 | |
MR24 | 1.1673x+2.8573 | 21.13 | 0.9302 | 7.8423-56.9183 | 1.3 | |
MR26 | 2.5058x+0.1607 | 85.36 | 0.9890 | 72.1467-100.9952 | 5.3 |
表3 不同反枝苋种群对草甘膦的抗药性 |
采集区域 | 编号 | 毒力回归方程(y=) | 抑制中剂量ED50/ (g a.i./hm2) | 相关系数 | 95%置信限 | 相对抗性倍数 |
---|---|---|---|---|---|---|
黔东 | FR10 | 1.229x+3.3881 | 20.80 | 0.9969 | 17.0071-25.4395 | 1.4 |
FR5 | 1.0115x+3.4299 | 35.67 | 0.9985 | 26.2613-47.7830 | 2.3 | |
FR7 | 1.8275x+1.9042 | 49.43 | 0.9787 | 36.7961-66.3997 | 3.2 | |
FR8 | 1.5096x+2.6177 | 37.86 | 0.9234 | 17.8130-80.4547 | 2.5 | |
FR9 | 1.4919x+3.0268 | 21.02 | 0.9966 | 17.0701-25.8769 | 1.4 | |
黔南 | FR11 | 2.6960x+0.4200 | 49.98 | 0.9896 | 40.0801-62.3314 | 3.2 |
FR6 | 2.3593x+0.0549 | 138.85 | 0.9914 | 119.7128-161.0497 | 9.0 | |
黔西 | FR21 | 1.7492x+2.4885 | 27.28 | 0.9764 | 16.7857-44.3350 | 1.8 |
FR23 | 1.6914x+2.9926 | 15.38 | 0.9747 | 7.1380-33.1208 | 1.0 | |
FR24 | 6.5996x+5.0108 | 32.88 | 0.8928 | 11.9838-90.1862 | 2.1 | |
FR25 | 1.6936x+2.5315 | 28.68 | 0.9934 | 22.1683-37.0965 | 1.9 | |
FR27 | 2.0269x+2.1851 | 24.48 | 0.9849 | 15.7714-37.9946 | 1.6 | |
FR28 | 2.2830x+1.2827 | 42.49 | 0.9794 | 30.5070-59.1784 | 2.8 | |
黔中 | FR1 | 1.1069x+2.0942 | 64.32 | 0.9694 | 10.9723-89.3063 | 4.2 |
FR12 | 1.4326x+2.3925 | 66.10 | 0.9997 | 64.2939-67.9507 | 4.3 | |
FR13 | 1.3695x+3.2070 | 20.38 | 0.9658 | 10.2608-40.4844 | 1.3 | |
FR14 | 1.8392x+1.2901 | 104.01 | 0.9534 | 73.9903-146.2229 | 6.8 | |
FR16 | 0.9893x+3.0023 | 104.52 | 0.9999 | 102.3073-106.7871 | 6.8 | |
FR18 | 1.4747x+2.8490 | 28.75 | 0.9547 | 14.7814-55.9143 | 1.9 | |
FR2 | 1.6069x+2.0942 | 64.22 | 0.9694 | 46.3191-89.3063 | 4.2 | |
FR22 | 1.6070x+2.8787 | 20.89 | 0.9679 | 10.8390-40.2801 | 1.4 | |
FR26 | 1.8484x+2.2874 | 29.35 | 0.9806 | 18.9413-45.4663 | 1.9 | |
FR3 | 3.0889x+1.3356 | 112.48 | 0.9776 | 89.2344-141.7775 | 7.3 | |
FR4 | 1.5357x+2.2928 | 57.93 | 0.9479 | 38.1853-87.8843 | 3.8 | |
黔北 | FR19 | 1.9499x+2.3943 | 21.69 | 0.9925 | 15.9871-29.4305 | 1.4 |
FS1 | 1.6962x+2.1971 | 44.92 | 0.9724 | 30.3755-66.4232 | 2.9 | |
FR15 | 1.1057x+3.5938 | 18.70 | 0.9026 | 5.2420-66.6766 | 1.2 |
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