Imazapyr concentration screening at callus differentiation stage and shoot stage of sugarcane

With the callus differentiation and shoot for 4 weeks of sugarcane variety ROC 22 and Yuetang 93- 159 as materials, this paper determined the concentration of imazapyr in callus differentiation stage and shoot stage of the two sugarcane varieties. The results showed that the callus tissue and shoot for 4 weeks of different genotypes of sugarcane had different tolerance to imazapyr. At the callus differentiation stage, the suitable imazapyr concentration for ROC 22 and Yuetang 93-159 was 0.3 滋mol/L. At the shoot stage of differentiation for 4 weeks, the suitable imazapyr concentration for ROC 22 was 0.5 滋mol/L, while was 1.0 滋mol/L for Yuetang 93-159.