不同品种水稻对乙氧氟草醚的敏感性测定  

The sensitivity of different varieties of rice to oxyfluorfen

作　　者：张苏新 黄元炬[1] 王春[1] 李广雨 王芊[1] 刘亚光[2] Yuanju;WANG Chun;LI Guangyu;WANG Qian;LIU Yaguang(Institute of Plant Protection,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China;Northeast Agricultural University,Harbin 150030,China)

机构地区：[1]黑龙江省农业科学院植物保护研究所,哈尔滨150086 [2]东北农业大学,哈尔滨150030

出　　处：《农药》2024年第7期540-546,共7页Agrochemicals

基　　金：“十四五”国家重点研发计划项目(2023YFD1401100);黑龙江省农业科技创新跨越工程重点攻关项目(CX23 GG14)。

摘　　要：[目的]为明确不同品种水稻对乙氧氟草醚的敏感性,提高药剂对水稻的安全性。[方法]选取了38个水稻品种为研究对象,采用整株生物测定法测定乙氧氟草醚对不同品种水稻株高、产量等生长指标的影响。[结果]对于耐药性水稻品种来说,株高恢复度高,在6.1%~32.54%之间,且产量不受药剂影响;对于中耐性水稻品种来说,株高恢复度较高,在-10.02%~26.97%之间,产量损失在1.67%以内,与各自对照产量相比差异不显著;对于敏感性水稻品种来说,株高恢复幅度较小,在-6.17%~7.18%之间,产量损失在2.08%~5.67%,与各自对照产量相比差异显著。[结论]不同品种水稻对乙氧氟草醚的敏感性存在差异,对于耐药性水稻品种而言,在推荐剂量范围内可安全使用乙氧氟草醚,对于敏感水稻品种而言,可与其他药剂混配使用或者选择替代药剂。[Aims]This study aims to clarify the sensitivity of different varieties of rice to oxyfluorfen,and improve the safety of herbicide to rice.[Methods]We selected 38 varieties of rice as research subjects.The whole plant bioassay method was used to determine the effects of oxyfluorfen on plant height,yield and other growth indicators of different varieties of rice.[Results]For herbicide-resistant rice,the plant height recovery rate was high,which ranged from 6.1%to 32.54%,and the yield was not affected by the herbicide.For medium-tolerant rice,the plant height recovery rate ranged from-10.02%to 26.97%,with the yield loss within 1.67%,which showed no significant difference compared with the respective yields of the control.For sensitive rice,the plant height recovery ranged from-6.17%to 7.18%,with the yield loss ranging from 2.08%to 5.67%,which was significantly different from that of the control.[Conclusions]Different varieties of rice have different sensitivity to oxyfluorfen.For the varieties of resistant rice,oxyfluorfen can be used safely within the recommended dosage range.For the varieties of sensitive rice,it should be mixed with other herbicides or replaced.

关 键 词：乙氧氟草醚 水稻 敏感性 

分 类 号：S482.4[农业科学—农药学]