秋水仙素诱导山东丹参丛生芽多倍体的初步研究及鉴定

目的]探究秋水仙素对山东丹参丛生芽诱导的可行性。方法]采用秋水仙素处理方法诱导山东丹参丛生芽。结果]添加12mg/L秋水仙素时,多倍体诱导率最高（36.6%）,存活率只有16.7%;添加8mg/L秋水仙素时,多倍体诱导率为15.9%,成活率最高（40.0%）。多倍体山东丹参的植株粗壮,叶片大而厚,颜色深,叶片下表皮上的气孔密度小,长度长。结论]秋水仙素能有效诱导丛生芽,并获得了丹参多倍体育种材料,为缩短育种进程奠定了基础。

Preliminary Study on Induction and Identification of Polyploidy of Shandong Salvia miltiorrhiza Buds Treated by Colchicine

Objective] The aim was to study the feasibility of using colchicine to induce polyploidy from the buds of Shandong Salvia miltiorrhiza.Method] The buds of Shandong Salvia miltiorrhiza were induced by colchicine.Result] When the concentration of colchicine supplemented in culture medium was 12 mg/L,the induction rate of polyploidy was the highest(36.6%),but its survival rate was only 16.7%.When the concentration of colchicine was 8 mg/L,the induction rate of polyploidy was 15.9%,and its survival rate was up to 40.0%.Polyploidy plant of Shandong Salvia miltiorrhiza was strong and had thick,large and dark leaves,and long stomata on the lower epidermis of leaves had small density.Conclusion] Colchicine could induce buds effectively,and the polyploidy breeding material of Salvia miltiorrhiza was obtained,which laid a foundation for shortening breeding process.