Tissue culture connected with traditional methods is used to studying ramiepolyploid. The inducing effects of colchicine of different concentration and treating time on tubeseedlings are compared. It is found that tissue culture can increase the survial rate of treated plantsthat 1/3 plants survives after 6 day-treatment with 1/1000 colchicine. It is the first time thatadventitious buds would be used to stabilize ramie polyploid ; and tetraploid plants with almosttetraploid cells, some triploid cells, aneuploid cells are ebtained. The tests of stomate dimensionsand chromosome numbers of treate...
