器內培養에서 oxyfluorfen 및 bensulfuron-methyl에 대한 벼 品種의 耐性差異

In vitro responses of rice cultivar to oxyfluorfen and bensulfuron-methyl

The study was conducted to certify the differential tolerance response of selected rice cultivars, namely cv. Aichiasahi and Mushakdanti to oxyfluorfen, and cv. Chinsurah Boro Ⅱ and IR 1846-284-1-1 to bensulfuron-methyl, in In Vitro culture process. Isolated mesophyll single cells of the tolerant cultivar (Aichiasahi) were initially classified rather clearly in healthy cell number than in total cell number at concentration of 10⁻⁴M oxyfluorfen. However, in case of bensulfuron-methyl no clear classification in susceptibility between the tolerant and the susceptible cultivars even at concentration of 10⁻³M. Suspension cultured cells of the tolerant cultivar (Aichiasahi) were initially classified at concentration of 10⁻⁵M oxyfluorfen in total cell number, but a shade of difference in survival rate was detected from the toterance cultivar (Chinsurah Boro Ⅱ) at concentration of 10⁻³M bensulfuron-methyl.