Protection of Plant A Extract by CO2 Supercritical Fluid Extraction from S-metolachlor Injury
to our knowledge,many chemical safeners have been synthesized up till now and it is commonly accepted that safening is achieved by induction of related enzymes involved in degradation of herbicides,but very few safeners were produced from plant materials and microbe.To find some natural compound from plants active in protecting crops from herbicides injury,we have studied activity of plant A extract by CO2 supercfitical fluid extraction in protecting rice seedlings from damage of S-metolachlor,our study showed that a range of concentrations of plant A extract significantly helped rice seedlings growth recover from obvious inhibition by certain concentration of S-metolachlor(0.01g/L),protective effect of 4g/L extracts was best among these extract concentrations,whereas,protective effect went down as extract concentrations went up to 16 and 32 g/L.Under inhibition of 0.02g/L herbicide S-metolaehlor,protective effect by extract correspondently rolled downhill.Data from our investigation showed that height and weight of rice seedling were significant affected,but roots length didn”t not affected,the reason is that S-metalachor barely influenced the roots growth.
S-metolachlor supercritical fluid extraction fenclorim safener extract Chloroacetamide herbicides
Jingbo Li Xiao mao Zhou Liangyang Bai
College of Bio-Safety of Science and Technology,Hunan Agricultral University,410128 Changsha,Hunan,C Hunan Institute of Humanities,Science and Technology,417000 Loudi,Hunan,China
国内会议
长沙
英文
150-155
2010-07-01（万方平台首次上网日期，不代表论文的发表时间）