Induced polypoidy under In Vitro conditions and highly efficacious screening of hexaploids in purple coneflower (Echinacea purpurea (L.)Moench)
Xiao-Lu Chen,
Dahanayake Nilanthi,
Yue-Sheng Yang,
Dong-Liang Li,
Jun-Jie Zhang,
Qing-Ling Li,
Rong Chen,
Hong Wu