Assessment of the growth, yield and active compounds content of tetraploidization Salvia miltiorrhiza Bunge clones

Abstract

Danshen (Salvia miltiorrhiza Bunge) is an important medicinal plant used for the treatment of cardiovascular disease. Ten tetraploid danshen clones induced using colchicine in the previous study and 1 diploid control were evaluated in Tam Dao Vinh Phuc province. Tetraploid danshen clones exhibited either similar or shorter growth periods compared to that of the diploi control. There were significant differences in yield and active compounds content among tetraploid clones and the diploid. Among those tetraploi clones, ĐS7 showed potential in both yield and active compound contents, with over 20% higher yield, over 90% increase in tashinon IIA and over 33% higher salvianolic B acid content. These preliminary results on 10 tetraploids of Danshen implies the production potentials of polyploid resources to support the breeding of poliploid Danshen varieties in Vietnam.