关键词: 高效液相色谱, 高效液相色谱, 绿麦隆, 玉米, 土壤

Abstract: [Objective] [Method] In order to clarify exogenous methyl jasmonate-induced resistance of maize on the biological characteristics of corn borer (Ostrinia furnacalis), the pest’s larvae growth and development and adult reproduction were observed after feeding on maize treated with 4 different concentrations of exogenous MeJA. The effect of the MeJA on the second generation of the experimental populations was also studied using the life table method. [Result] The results showed that mortality rate of larvae was increased, the development duration of larvae was extended, adult longevity and total fecundity number were decreased obviously, the larvae weight and pupa weight were all shortened than the controls except for 100 μmol/L MeJA pupa weight after feeding on maize treated with MeJA. The effects described above are closely associated with the concentrations of MeJA, 225 μM/L MeJA treatment has the most impact on the development of corn borer, duration of larvae extend 5.41 d and fecundity of the female reduced 3.6 and adult life reduced 1.33 d compared to the control. methyl jasmonate -induced resistance of maize affects on corn borer larvae feeding significantly, larvae weight of 100μmol/L and 225 μmol/L MeJA treatment reduced 3.29?6.86 mg compared to the control which reach significant difference, growth inhibition rate reach 28.34~59.09%. The net reproduction rate (R0) and finite rate of increase (λ) in first filial generation were markedly decreased, the intrinsic rates of increase (rm) dropped from 0. 37 to 0.17-0.29, the mean generation time (T) and the population doubling time (Dt) ware prolonged compared to the control. [Conclusion] The study showed MeJA treatment could decrease the development rate of the Asian corn borer which is significant to the control of the pest.